dreistimmig

.gitignore

@@ -1,3 +1,5 @@
 *.o
-firmware.*
+firmware.txt
+firmware.elf
+firmware.map
 

display-driver/Makefile

@@ -0,0 +1,31 @@
+TOOLCHAIN_PREFIX=/opt/msp430-gcc
+CC=$(TOOLCHAIN_PREFIX)/bin/msp430-elf-gcc
+OBJDUMP=$(TOOLCHAIN_PREFIX)/bin/msp430-elf-objdump
+
+ARTIFACT=firmware
+MCU=msp430g2553
+CFLAGS=-Wall -mmcu=$(MCU) -std=gnu99 -I $(TOOLCHAIN_PREFIX)/include -O1 -g0
+
+# for debugging
+#CFLAGS+= -g3 -ggdb -gdwarf-2
+
+LDFLAGS=-mmcu=$(MCU) -L $(TOOLCHAIN_PREFIX)/include
+
+$(ARTIFACT).elf:	main.o
+	$(CC) -o $@ $(LDFLAGS) $^
+	$(OBJDUMP) -D $(ARTIFACT).elf > $(ARTIFACT).txt
+
+.c.o:	
+	$(CC) $(CFLAGS) -c $<
+
+
+.PHONY: all
+all:	$(ARTIFACT).elf
+
+.PHONY: clean
+clean:
+	-rm -f *.o $(ARTIFACT).elf $(ARTIFACT).txt
+
+.PHONY: upload
+upload: $(ARTIFACT).elf
+	mspdebug rf2500 "prog $(ARTIFACT).elf"

display-driver/main.c

@@ -0,0 +1,131 @@
+#include <msp430g2553.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+
+const uint8_t patterns[] = {
+  0b00111111, // 0
+  0b00000110, // 1
+  0b01011011, // 2
+  0b01001111, // 3
+  0b01100110, // 4
+  0b01101101, // 5
+  0b01111101, // 6
+  0b00100111, // 7
+  0b01111111, // 8
+  0b01101111, // 9
+};
+
+
+
+volatile union {
+  uint16_t value;
+  uint8_t receiveBuffer[2];
+} value;
+
+
+static void delay() {
+  asm volatile (
+      "push r12\n"
+      "mov.w #1000, r12\n"
+      "loop:\n"
+      "dec.w r12\n"
+      "jnz loop\n"
+      "pop r12\n"
+  );
+}
+
+
+void __attribute__ ((interrupt (USCIAB0RX_VECTOR))) receive() {
+  static uint8_t octetNumber = 0;
+  if (UC0IFG & UCB0RXIFG) {
+    value.receiveBuffer[octetNumber] = UCB0RXBUF;
+    octetNumber++;
+    if (octetNumber > 1) {
+      octetNumber = 0;
+    }
+  }
+}
+
+// mask 0x0f: digit value
+// mask 0x10: set dp
+// mask 0x20: digit off
+static void setDigit(uint16_t bit, uint8_t value) {
+  P1OUT |= (BIT0 | BIT1 | BIT2 | BIT3);
+  P2OUT = ((value & 0x20) ? 0 : patterns[value & 0x0f]) | ((value & 0x10) ? 0x80 : 0x00);
+  P1OUT &= ~bit;
+}
+
+
+int main() {
+  WDTCTL = WDTPW | WDTHOLD;
+
+  __disable_interrupt();
+
+  // highest possible system clock
+  DCOCTL = DCO0 | DCO1 | DCO2;
+  BCSCTL1 = XT2OFF | RSEL0 | RSEL1 | RSEL2 | RSEL3;
+  BCSCTL2 = 0;
+  BCSCTL3 = 0;
+
+  // SPI slave
+  // BIT4: UCB0STE
+  // BIT5: UCB0CLK
+  // BIT6: UCB0SOMI
+  // BIT7: UCB0SIMO
+  P1SEL |= BIT4 | BIT5 | BIT6 | BIT7;
+  P1SEL2 |= BIT4 | BIT5 | BIT6 | BIT7;
+  // most significant bit first, enable STE
+  UCB0CTL0 = UCSYNC | UCMSB | UCMODE_2;
+  UCB0CTL1 = 0x00;
+  // enable RX interrupt
+  UC0IE |= UCB0RXIE;
+
+  // digit driver
+  P1DIR |= BIT0 | BIT1 | BIT2 | BIT3;
+  P1SEL &= ~(BIT0 | BIT1 | BIT2 | BIT3);
+  P1SEL2 &= ~(BIT0 | BIT1 | BIT2 | BIT3);
+
+  // segment driver
+  P2DIR = 0xff;
+  P2SEL = 0x00;
+  P2SEL2 = 0x00;
+
+  // all digits off
+  P1OUT |= (BIT0 | BIT1 | BIT2 | BIT3);
+
+  // all segments off
+  P2OUT &= ~(BIT0 | BIT1 | BIT2 | BIT3 | BIT4 | BIT5 | BIT6 | BIT7);
+
+  // reset value to 0
+  value.value = 0;
+
+  __enable_interrupt();
+
+  while (1) {
+    __disable_interrupt();
+    uint16_t shadowValue = value.value;
+    __enable_interrupt();
+
+    uint8_t digit0 = shadowValue % 10;
+    uint8_t digit1 = (shadowValue / 10) % 10;
+    uint8_t digit2 = (shadowValue / 100) % 10;
+    uint8_t digit3 = (shadowValue / 1000) % 10;
+
+    digit1 += (!((digit3 & 0x0f) | (digit2 & 0x0f) | (digit1 & 0x0f))) ? 0x20 : 0x00;
+    digit2 += (!((digit3 & 0x0f) | (digit2 & 0x0f))) ? 0x20 : 0x00;
+    digit3 += (!(digit3 & 0x0f)) ? 0x20 : 0x00;
+
+    setDigit(BIT0, digit0);
+    delay();
+
+    setDigit(BIT1, digit1);
+    delay();
+
+    setDigit(BIT2, digit2);
+    delay();
+
+    setDigit(BIT3, digit3);
+    delay();
+  }
+}

game-ctrl/Makefile

@@ -7,11 +7,11 @@ MCU=msp430g2553
 CFLAGS=-Wall -mmcu=$(MCU) -std=gnu99 -I $(TOOLCHAIN_PREFIX)/include -O1 -g0
 
 # for debugging
-# CFLAGS+= -g3 -ggdb -gdwarf-2
+#CFLAGS+= -g3 -ggdb -gdwarf-2
 
 LDFLAGS=-mmcu=$(MCU) -L $(TOOLCHAIN_PREFIX)/include
 
-$(ARTIFACT).elf:	main.o led.o time.o PontCoopScheduler.o displayDriver.o canvas.o shapes.o game.o buttons.o
+$(ARTIFACT).elf:	main.o spi.o scheduler.o canvas.o shapes.o game.o buttons.o myrand.o display.o
 	$(CC) -o $@ $(LDFLAGS) $^
 	$(OBJDUMP) -D $(ARTIFACT).elf > $(ARTIFACT).txt
 

game-ctrl/buttons.c

@@ -1,59 +1,47 @@
-#include "stddef.h"
-#include "stdint.h"
+#include <stddef.h>
+#include <stdint.h>
+#include <msp430g2553.h>
 
 #include "buttons.h"
-#include "PontCoopScheduler.h"
+#include "scheduler.h"
 #include "shapes.h"
 #include "canvas.h"
-#include "led.h"
-
-
-// TEST CODE
-uint16_t counter;
 
 
 static uint8_t buttonsMoveLeftPressed() {
-  // -----------------------
-  // TEST CODE
-  //if (counter == 95) {
-  //  ledGreenToggle();
-  //  return 1;
-  //}
-  // -----------------------
-  return 0;
+  static uint8_t last = 0;
+  uint8_t current = (P2IN & BIT4);
+  uint8_t res = (current != 0) && (current != last);
+  last = current;
+  return res;
 }
 
 static uint8_t buttonsMoveRightPressed() {
-  // -----------------------
-  // TEST CODE
-  if (counter == 95) {
-    ledGreenToggle();
-    return 1;
-  }
-  // -----------------------
-  return 0;
+  static uint8_t last = 0;
+  uint8_t current = (P2IN & BIT0);
+  uint8_t res = (current != 0) && (current != last);
+  last = current;
+  return res;
 }
 
 static uint8_t buttonsRotateLeftPressed() {
-  return 0;
+  static uint8_t last = 0;
+  uint8_t current = (P2IN & BIT3);
+  uint8_t res = (current != 0) && (current != last);
+  last = current;
+  return res;
 }
 
 static uint8_t buttonsRotateRightPressed() {
-  // -----------------------
-  // TEST CODE
-  if (counter == 35) {
-    ledGreenToggle();
-    return 1;
-  }
-  // -----------------------
-  // -----------------------
-  // TEST CODE
-  if (counter == 45) {
-    ledGreenToggle();
-    return 1;
-  }
-  // -----------------------
-  return 0;
+  static uint8_t last = 0;
+  uint8_t current = (P2IN & BIT1);
+  uint8_t res = (current != 0) && (current != last);
+  last = current;
+  return res;
+}
+
+static uint8_t buttonsMoveDownPressed() {
+  return P2IN & BIT2;
 }
 
 void buttonsExec(void *handle) {
@@ -62,9 +50,6 @@ void buttonsExec(void *handle) {
     return;
   }
 
-  // TEST CODE
-  counter++;
-
   uint8_t buttonPressed = 0;
 
   if (buttonsMoveLeftPressed()) {
@@ -83,6 +68,10 @@ void buttonsExec(void *handle) {
     stoneRotateRight();
     buttonPressed = 1;
   }
+  if (buttonsMoveDownPressed()) {
+    stoneMoveDown();
+    buttonPressed = 1;
+  }
 
   if (buttonPressed == 1) {
     canvasShow();
@@ -90,9 +79,8 @@ void buttonsExec(void *handle) {
 }
 
 void buttonsInit() {
-  // TEST CODE
-  counter = 0;
+  P2DIR &= ~(BIT0|BIT1|BIT2|BIT3|BIT4);
 
-  schAdd(buttonsExec, NULL, 0, 100);
+  schAdd(buttonsExec, NULL, 0, 25);
 }
 

game-ctrl/canvas.c

@@ -1,39 +1,80 @@
 #include <string.h>
 #include <stdint.h>
 
+#include <msp430g2553.h>
+
 #include "canvas.h"
-#include "displayDriver.h"
+#include "spi.h"
 
 
 static uint8_t canvasStorage[CANVAS_WIDTH * CANVAS_HEIGHT];
 const canvas_t canvas = { 
   .height = CANVAS_HEIGHT,
   .width = CANVAS_WIDTH,
-  .size = CANVAS_WIDTH * CANVAS_HEIGHT,
   .canvas = canvasStorage
 };
 
+static uint8_t miniCanvasStorage[MINI_CANVAS_WIDTH * MINI_CANVAS_HEIGHT];
+const canvas_t miniCanvas = { 
+  .height = MINI_CANVAS_HEIGHT,
+  .width = MINI_CANVAS_WIDTH,
+  .canvas = miniCanvasStorage
+};
+
+void canvasShow() {
+  // wait for signal waiting for data
+  while (!(P1IN & BIT3));
+
+  spiSendBegin(e_SPI_CANVAS);
+
+  for (uint8_t i = 0; i < (CANVAS_WIDTH*CANVAS_HEIGHT); i++) {
+    if ((*((canvas.canvas)+i) & 0x80) != 0) {
+      *((canvas.canvas)+i) &= ~0x80;
+      spiSendOctet(i);
+      spiSendOctet(*((canvas.canvas)+i));
+    }
+  }
+  for (uint8_t i = 0; i < (MINI_CANVAS_WIDTH*MINI_CANVAS_HEIGHT); i++) {
+    if ((*((miniCanvas.canvas)+i) & 0x80) != 0) {
+      *((miniCanvas.canvas)+i) &= ~0x80;
+      spiSendOctet(i + (CANVAS_HEIGHT*CANVAS_WIDTH));
+      spiSendOctet(*((miniCanvas.canvas)+i));
+    }
+  }
+  spiSendOctet(0xfe);
+
+  spiSendEnd(e_SPI_CANVAS);
+}
+
 void canvasInit() {
+  // P1.3 is signal line
+  P1DIR &= ~BIT3;
+
   canvasClear();
-  displayDriverTransferCanvas();
+  miniCanvasClear();
+  canvasShow();
 }
 
 void canvasClear() {
-  memset(canvas.canvas, 0x80, canvas.size);
+  memset(canvas.canvas, 0x80, CANVAS_WIDTH*CANVAS_HEIGHT);
 }
 
-void canvasSetAll(uint8_t color) {
-  memset(canvas.canvas, color + 0x80, canvas.size);
+void miniCanvasClear() {
+  memset(miniCanvas.canvas, 0x80, MINI_CANVAS_WIDTH*MINI_CANVAS_HEIGHT);
 }
 
-void canvasShow() {
-  displayDriverTransferCanvas();
-}
+//void canvasSetAll(uint8_t color) {
+//  memset(canvas.canvas, color + 0x80, CANVAS_WIDTH*CANVAS_HEIGHT);
+//}
 
 void canvasSetPixel(uint8_t column, uint8_t row, uint8_t color) {
   *((canvas.canvas) + (row * canvas.width + column)) = (color + 0x80);
 }
 
+void miniCanvasSetPixel(uint8_t column, uint8_t row, uint8_t color) {
+  *((miniCanvas.canvas) + (row * miniCanvas.width + column)) = (color + 0x80);
+}
+
 void canvasWipeRow(uint8_t row) {
   memmove(((canvas.canvas)+canvas.width), canvas.canvas, canvas.width*row);
   for (uint8_t i = 10; i < canvas.width*(row+1); i++) {
@@ -42,6 +83,13 @@ void canvasWipeRow(uint8_t row) {
   memset(canvas.canvas, 0x80, canvas.width);
 }
 
+void canvasFillRow(uint8_t row, uint8_t color) {
+  for (uint8_t c = 0; c < canvas.width; c++) {
+    canvasSetPixel(c, row, color);
+  }
+}
+
+
 uint8_t canvasIsRowFilled(uint8_t row) {
   uint8_t res = 1;
   for (uint8_t column = 0; column < canvas.width; column++) {

game-ctrl/canvas.h

@@ -3,9 +3,10 @@
 
 #include <stdint.h>
 
+// Definition of CANVAS_WIDTH and CANVAS_HEIGHT
+// imported from rgb-driver
+#include "../rgb-driver/canvasSize.h"
 
-#define CANVAS_WIDTH 10
-#define CANVAS_HEIGHT 11 
 
 typedef struct {
   const uint8_t width;
@@ -16,13 +17,14 @@ typedef struct {
 
 void canvasInit();
 void canvasClear();
-void canvasSetAll(uint8_t color);
+void miniCanvasClear();
+//void canvasSetAll(uint8_t color);
 void canvasShow();
 void canvasSetPixel(uint8_t column, uint8_t row, uint8_t color);
+void miniCanvasSetPixel(uint8_t column, uint8_t row, uint8_t color);
 uint8_t canvasIsPixelFree(uint8_t column, uint8_t row);
 void canvasWipeRow(uint8_t row);
+void canvasFillRow(uint8_t row, uint8_t color);
 uint8_t canvasIsRowFilled(uint8_t row);
 
-extern const canvas_t canvas;
-
 #endif // _CANVAS_H_

game-ctrl/disabled/led.c

@@ -1,6 +1,6 @@
 #include "led.h"
 #include <msp430g2553.h>
-#include "PontCoopScheduler.h"
+#include "scheduler.h"
 #include <stdlib.h>
 
 

game-ctrl/display.c

@@ -0,0 +1,26 @@
+#include <stdint.h>
+
+#include "display.h"
+#include "spi.h"
+
+
+
+void displayInit() {
+}
+
+
+void displaySetValue(uint16_t v) {
+  union {
+    uint16_t value;
+    uint8_t sendBuffer[2];
+  } value;
+
+  value.value = v;
+
+  spiSendBegin(e_SPI_DISPLAY);
+
+  spiSendOctet(value.sendBuffer[0]);
+  spiSendOctet(value.sendBuffer[1]);
+
+  spiSendEnd(e_SPI_DISPLAY);
+}

game-ctrl/display.h

@@ -0,0 +1,13 @@
+#ifndef _DISPLAY_H_
+#define _DISPLAY_H_
+
+#include <stdint.h>
+
+
+void displayInit();
+void displaySetValue(uint16_t v);
+
+
+
+
+#endif // _DISPLAY_H_

game-ctrl/displayDriver.c

@@ -1,57 +0,0 @@
-#include "displayDriver.h"
-#include "led.h"
-#include "canvas.h"
-#include <msp430g2553.h>
-#include <stdlib.h>
-#include <stdint.h>
-
-
-
-inline static void spiSendOctet(uint8_t v) {
-  // wait for TX buffer empty
-  while (!(UC0IFG & UCB0TXIFG));
-  // load octet into TX buffer
-  UCB0TXBUF = v;
-}
-
-void displayDriverTransferCanvas() {
-  // wait for signal waiting for data
-  while ((P1IN & BIT3) == 0);
-
-  for (uint8_t i = 0; i < canvas.size; i++) {
-    if ((*((canvas.canvas)+i) & 0x80) != 0) {
-      *((canvas.canvas)+i) &= ~0x80;
-      spiSendOctet(i);
-      spiSendOctet(*((canvas.canvas)+i));
-    }
-  }
-  spiSendOctet(0xfe);
-}
-
-void displayDriverInit() {
-  // SPI in master mode
-  UCB0CTL0 = UCMST;
-  // SPI timing config
-  UCB0CTL1 = UCSSEL_3;
-  // Faster than 8 ends up in strange communication errors
-  // between the both MCUs.
-  // With 8 the transfer of a complete 110 pixel canvas takes
-  // about 720us.
-  UCB0BR0 = 8; 
-  UCB0BR1 = 0;
-
-  // BIT5: UCB0CLK
-  // BIT6: UCB0SOMI
-  // BIT7: UCB0SIMO
-  P1SEL |= BIT5 | BIT6 | BIT7;
-  P1SEL2 |= BIT5 | BIT6 | BIT7;
-  P1DIR |= BIT5 | BIT7;
-
-  // P1.3 is signal line
-  P1DIR &= ~BIT3;
-
-  // enable SPI module
-  UCB0CTL1 &= ~UCSWRST;
-}
-
-

game-ctrl/displayDriver.h

@@ -1,9 +0,0 @@
-#ifndef _DISPLAY_DRIVER_H_
-#define _DISPLAY_DRIVER_H_
-
-void displayDriverInit();
-void displayDriverTransferCanvas();
-
-
-
-#endif // _DISPLAY_DRIVER_H_

game-ctrl/firmware.gdb

@@ -0,0 +1,2 @@
+target remote localhost:2000
+file firmware.elf

game-ctrl/game.c

@@ -2,66 +2,128 @@
 #include "stdint.h"
 
 #include "game.h"
-#include "PontCoopScheduler.h"
+#include "scheduler.h"
 #include "shapes.h"
 #include "canvas.h"
+#include "../rgb-driver/colors.h"
+#include "display.h"
 
 
-typedef enum { e_idle, e_start, e_newStone, e_down, e_gameOver, e_delay } state_t;
+#define GAME_CYCLE_TIME 100
+#define GAMEOVER_DELAY 10
+
+
+static uint8_t delayFactor(uint8_t level) {
+  return 11 - level;
+}
+
+typedef enum {
+  e_Phase_Game, e_Phase_GameOver 
+} phase_t;
+
+typedef enum { 
+  e_Start, e_NewStone, e_Down, e_DownDelay, e_ClearRows,
+  e_GameOver, e_GameOverFill, e_GameOverWipe, e_GameOverDelay 
+} state_t;
 
 void gameExec(void *handle) {
-  static state_t state = e_start;
-  static uint8_t delay;
+  static phase_t phase;
+  static state_t state = e_Start;
+  static uint8_t gameOverDelay;
+  static uint8_t rowIndex;
+  static uint8_t proceedDelay;
+  static uint8_t level;
+  static uint16_t score;
 
+// --- engine begin -------------------------------------------------------
   switch (state) {
-    case e_idle:
-      break;
-
-    case e_start:
+// --- phase: game --------------------------------------------------------
+    case e_Start:
       canvasClear();
-      state = e_newStone;
+      level = 1;
+      score = 0;
+      displaySetValue(score);
+      phase = e_Phase_Game;
+      state = e_NewStone;
       break;
 
-    case e_newStone:
+    case e_NewStone:
       stoneCreate();
       if (stoneDraw()) {
-        state = e_down;
+        proceedDelay = delayFactor(level);
+        state = e_DownDelay;
       } else {
-        state = e_gameOver;
+        state = e_GameOver;
       }
       break;
 
-    case e_down:
+    case e_DownDelay:
+      proceedDelay--;
+      if (proceedDelay == 0) {
+        rowIndex = 0;
+        state = e_ClearRows;
+      }
+      break;
+
+    case e_ClearRows:
+      state = e_Down;
+      break;
+      
+    case e_Down:
       if (! stoneMoveDown()) {
-        state = e_newStone;
+        state = e_NewStone;
+      } else {
+        proceedDelay = delayFactor(level);
+        state = e_DownDelay;
       }
       break;
 
-    case e_gameOver:
-      for (uint8_t c = 0; c < canvas.width; c++) {
-        canvasSetPixel(c, 0, 0x0d);
-        canvasSetPixel(c, canvas.height-1, 0x0d);
-      }
-      for (uint8_t r = 0; r < canvas.height; r++) {
-        canvasSetPixel(0, r, 0x0d);
-        canvasSetPixel(canvas.width-1, r, 0x0d);
-      }
-      delay = 10;
-      state = e_delay;
+// --- phase: game over ---------------------------------------------------
+    case e_GameOver:
+      rowIndex = CANVAS_HEIGHT;
+      phase = e_Phase_GameOver;
+      state = e_GameOverFill;
       break;
 
-    case e_delay:
-      delay--;
-      if (delay == 0) {
-        state = e_start;
+    case e_GameOverFill:
+      rowIndex--;
+      canvasFillRow(rowIndex, _red);
+      if (rowIndex == 0) {
+        state = e_GameOverWipe;
+      }
+      break;
+
+    case e_GameOverWipe:
+      canvasWipeRow(rowIndex);
+      rowIndex++;
+      if (rowIndex == CANVAS_HEIGHT) {
+        gameOverDelay = GAMEOVER_DELAY;
+        state = e_GameOverDelay;
+      }
+      break;
+
+    case e_GameOverDelay:
+      gameOverDelay--;
+      if (gameOverDelay == 0) {
+        state = e_Start;
       }
       break;
   }
+// --- engine end ---------------------------------------------------------
 
   canvasShow();
+  if (phase == e_Phase_Game) {
+    for (uint8_t r = 0; r < CANVAS_HEIGHT; r++) {
+      if (canvasIsRowFilled(r)) {
+        score += level;
+        displaySetValue(score);
+        canvasWipeRow(r);
+        canvasShow();
+      }
+    }
+  }
 }
 
 void gameInit() {
-  schAdd(gameExec, NULL, 0, 1000);
+  schAdd(gameExec, NULL, 0, GAME_CYCLE_TIME);
 }
-

game-ctrl/main.c

@@ -4,13 +4,14 @@
 #include <stdbool.h>
 
 #include "time.h"
-#include "PontCoopScheduler.h"
-#include "led.h"
-#include "displayDriver.h"
+#include "scheduler.h"
 #include "canvas.h"
 #include "game.h"
 #include "buttons.h"
 #include "shapes.h"
+#include "myrand.h"
+#include "spi.h"
+#include "display.h"
 
 
 int main() {
@@ -24,11 +25,11 @@ int main() {
     BCSCTL2 = 0;
     BCSCTL3 = 0;
 
-    timeInit();
     schInit();
 
-    ledInit();
-    displayDriverInit();
+    spiInit();
+    displayInit();
+    myRandInit();
     canvasInit();
 
     shapesInit();

game-ctrl/myrand.c

@@ -0,0 +1,26 @@
+#include <stdint.h>
+#include <msp430g2553.h>
+
+#include "myrand.h"
+
+void myRandInit() {
+  ADC10CTL1 = INCH_10;
+  ADC10CTL0 = SREF_1 | ADC10SHT_1 | REFON | ADC10ON;
+}
+
+uint16_t myRandGet() {
+  uint16_t res = 0;
+
+  for (uint8_t i = 0; i < 16; i++) {
+    ADC10CTL0 |= ENC | ADC10SC;
+
+    while ((ADC10CTL1 & ADC10BUSY));
+  
+    res <<= 1;
+    res |= ADC10MEM & 0x0001;
+  }
+
+  return res;
+}
+
+  

game-ctrl/myrand.h

@@ -0,0 +1,8 @@
+#ifndef _MYRAND_H_
+#define _MYRAND_H_
+
+void myRandInit();
+uint16_t myRandGet();
+
+
+#endif // _MYRAND_H_

game-ctrl/scheduler.c

@@ -1,21 +1,23 @@
 /*
  * PontCoopScheduler.c
  *
- *  Created on: 29.08.2016
+ *  Originally created on: 29.08.2016
  *      Author: wn
  */
 
 
 #include <stdlib.h>
 #include <msp430g2553.h>
-
-
-#include "PontCoopScheduler.h"
+#include "scheduler.h"
 
 tTask tasks[MAX_NUM_OF_TASKS];
 
 
 void schInit() {
+  TACCR0 = 32;
+  TACCTL0 = CCIE;
+  TACTL = MC_1 | ID_0 | TASSEL_1 | TACLR;
+
   for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
     tasks[i].delay = 0;
     tasks[i].period = 0;
@@ -25,6 +27,19 @@ void schInit() {
   }
 }
 
+void __attribute__ ((interrupt (TIMER0_A0_VECTOR))) schUpdate() {
+  for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
+    if (tasks[i].exec != NULL) {
+      if (tasks[i].delay == 0) {
+        tasks[i].delay = tasks[i].period;
+        tasks[i].run++;
+      } else {
+        tasks[i].delay--;
+      }
+    }
+  }
+}
+
 void schAdd(void (*exec)(void *), void *handle, uint32_t delay, uint32_t period) {
   for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
     if (tasks[i].exec == NULL) {
@@ -75,16 +90,3 @@ void schExec() {
 }
 
 
-
-void schUpdate() {
-  for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
-    if (tasks[i].exec != NULL) {
-      if (tasks[i].delay == 0) {
-        tasks[i].delay = tasks[i].period;
-        tasks[i].run++;
-      } else {
-        tasks[i].delay--;
-      }
-    }
-  }
-}

game-ctrl/shapes.c

@@ -1,7 +1,9 @@
 #include <stdint.h>
 #include <stddef.h>
+#include <stdlib.h>
 
 #include "shapes.h"
+#include "myrand.h"
 #include "canvas.h"
 #include "../rgb-driver/colors.h"
 
@@ -42,7 +44,7 @@ typedef struct {
   motion_t motion[5][4];
 } motionTable_t;
 
-const motionTable_t motions[2] = { // 2 = number of implemented stones
+const motionTable_t motions[7] = { // size = number of implemented stones
   { // I
     .color = _cyan,
     .nullRotation = 0,
@@ -120,13 +122,223 @@ const motionTable_t motions[2] = { // 2 = number of implemented stones
       },
       {
         // rotate right
-        { .set = { {-2, 1}, {-1, 1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 0, 2}, { 0, 3}, { 0, 3} }, .offset = {-2, 1} }, // 0
-        { .set = { { 1,-1}, { 1, 1}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 2, 0}, { 3, 0}, { 3, 0} }, .offset = { 1,-1} }, // 90
-        { .set = { {-2, 1}, {-1, 1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 0, 2}, { 0, 3}, { 0, 3} }, .offset = {-2, 1} }, // 180
-        { .set = { { 1,-1}, { 1, 1}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 2, 0}, { 3, 0}, { 3, 0} }, .offset = { 1,-1} }, // 270
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 0
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 90
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 180
+        { .set = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 0, 0} }, // 270
       },
     }
+  },
+  { // T
+    .color = _violet,
+    .nullRotation = 0,
+    .draw = { { 0, 0}, { 1, 0}, { 2, 0}, { 1, 1} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 1}, { 2, 1}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 1, 0}, { 2, 0}, { 2, 0} }, .offset = { 0, 1} }, // 0
+        { .set = { { 0, 2}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 2}, { 1, 2}, { 2, 2}, { 2, 2} }, .reset = { { 1, 0}, { 0, 1}, { 2, 1}, { 2, 1} }, .offset = { 0, 1} }, // 180
+        { .set = { { 0, 3}, { 1, 2}, { 1, 2}, { 1, 2} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0, 1} }, // 270
+      },
+      {
+        // move left
+        { .set = { {-1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 1, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = {-1, 0} }, // 0
+        { .set = { { 0, 0}, {-1, 1}, { 0, 2}, { 0, 2} }, .reset = { { 1, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = {-1, 0} }, // 90
+        { .set = { {-1, 1}, { 0, 0}, { 0, 0}, { 0, 0} }, .reset = { { 1, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 0}, {-1, 1}, {-1, 2}, {-1, 2} }, .reset = { { 0, 0}, { 0, 2}, { 1, 1}, { 1, 1} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 3, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 1, 0} }, // 0
+        { .set = { { 2, 0}, { 2, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 1}, { 1, 0}, { 1, 2}, { 1, 2} }, .offset = { 1, 0} }, // 90
+        { .set = { { 3, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 0, 1}, { 1, 0}, { 1, 0} }, .offset = { 1, 0} }, // 180
+        { .set = { { 1, 0}, { 1, 2}, { 2, 1}, { 2, 1} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 2} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { { 1,-1}, { 1,-1}, { 1,-1}, { 1,-1} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = { 1,-1} }, // 0
+        { .set = { { 2, 1}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 1, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 90
+        { .set = { { 1, 2}, { 1, 2}, { 1, 2}, { 1, 2} }, .reset = { { 2, 1}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = { 0, 0} }, // 180
+        { .set = { {-1, 1}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 0, 2}, { 0, 2}, { 0, 2}, { 0, 2} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { { 1,-1}, { 1,-1}, { 1,-1}, { 1,-1} }, .reset = { { 2, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-1} }, // 0
+        { .set = { { 2, 1}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 1, 2}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 0} }, // 90
+        { .set = { { 1, 2}, { 1, 2}, { 1, 2}, { 1, 2} }, .reset = { { 0, 1}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 180
+        { .set = { {-1, 1}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 0, 0}, { 0, 0}, { 0, 0}, { 0, 0} }, .offset = {-1, 1} }, // 270
+      },
     }
+  },
+  { // Z
+    .color = _red,
+    .nullRotation = 0,
+    .draw = { { 0, 0}, { 1, 0}, { 1, 1}, { 2, 1} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 1}, { 1, 2}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 1, 0}, { 2, 1}, { 2, 1} }, .offset = { 0, 1} }, // 0
+        { .set = { { 1, 2}, { 0, 3}, { 0, 3}, { 0, 3} }, .reset = { { 1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 1}, { 1, 2}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 1, 0}, { 2, 1}, { 2, 1} }, .offset = { 0, 1} }, // 180
+        { .set = { { 1, 2}, { 0, 3}, { 0, 3}, { 0, 3} }, .reset = { { 1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 1} }, // 270
+      },
+      {
+        // move left
+        { .set = { {-1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 1, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 0
+        { .set = { {-1, 1}, {-1, 2}, { 0, 0}, { 0, 0} }, .reset = { { 1, 0}, { 1, 1}, { 0, 2}, { 0, 2} }, .offset = {-1, 0} }, // 90
+        { .set = { {-1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 1, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 1}, {-1, 2}, { 0, 0}, { 0, 0} }, .reset = { { 1, 0}, { 1, 1}, { 0, 2}, { 0, 2} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 3, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 1, 0} }, // 0
+        { .set = { { 2, 0}, { 2, 1}, { 1, 2}, { 1, 2} }, .reset = { { 0, 1}, { 0, 2}, { 1, 0}, { 1, 0} }, .offset = { 1, 0} }, // 90
+        { .set = { { 3, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 1, 0} }, // 180
+        { .set = { { 2, 0}, { 2, 1}, { 1, 2}, { 1, 2} }, .reset = { { 0, 1}, { 0, 2}, { 1, 0}, { 1, 0} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { { 1,-1}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 2, 1}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0,-1} }, // 0
+        { .set = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 2}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 0} }, // 90
+        { .set = { { 1,-1}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 2, 1}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0,-1} }, // 180
+        { .set = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 2}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 0} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { { 1,-1}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 2, 1}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0,-1} }, // 0
+        { .set = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 2}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 0} }, // 90
+        { .set = { { 1,-1}, { 0, 1}, { 0, 1}, { 0, 1} }, .reset = { { 2, 1}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0,-1} }, // 180
+        { .set = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .reset = { { 0, 2}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 0} }, // 270
+      },
+    }
+  },
+  { // S
+    .color = _green,
+    .nullRotation = 0,
+    .draw = { { 0, 1}, { 1, 1}, { 1, 0}, { 2, 0} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 2}, { 1, 2}, { 2, 1}, { 2, 1} }, .reset = { { 0, 1}, { 1, 0}, { 2, 0}, { 2, 0} }, .offset = { 0, 1} }, // 0
+        { .set = { { 0, 2}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 2}, { 1, 2}, { 2, 1}, { 2, 1} }, .reset = { { 0, 1}, { 1, 0}, { 2, 0}, { 2, 0} }, .offset = { 0, 1} }, // 180
+        { .set = { { 0, 2}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 0, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 0, 1} }, // 270
+      },
+      {
+        // move left
+        { .set = { { 0, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 2, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = {-1, 0} }, // 0
+        { .set = { {-1, 0}, {-1, 1}, { 0, 2}, { 0, 2} }, .reset = { { 0, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = {-1, 0} }, // 90
+        { .set = { { 0, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 2, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 0}, {-1, 1}, { 0, 2}, { 0, 2} }, .reset = { { 0, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 2, 1}, { 3, 0}, { 3, 0}, { 3, 0} }, .reset = { { 1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 0
+        { .set = { { 1, 0}, { 2, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 0, 1}, { 1, 2}, { 1, 2} }, .offset = { 1, 0} }, // 90
+        { .set = { { 2, 1}, { 3, 0}, { 3, 0}, { 3, 0} }, .reset = { { 1, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 180
+        { .set = { { 1, 0}, { 2, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 0, 1}, { 1, 2}, { 1, 2} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { { 0, 0}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-1} }, // 0
+        { .set = { { 1, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 0} }, // 90
+        { .set = { { 0, 0}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-1} }, // 180
+        { .set = { { 1, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 0} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { { 0, 0}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-1} }, // 0
+        { .set = { { 1, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 0} }, // 90
+        { .set = { { 0, 0}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-1} }, // 180
+        { .set = { { 1, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 0} }, // 270
+      },
+    }
+  },
+  { // L
+    .color = _orange,
+    .nullRotation = 0,
+    .draw = { { 0, 0}, { 0, 1}, { 0, 2}, { 1, 2} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 3}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 0, 1} }, // 0
+        { .set = { { 1, 1}, { 2, 1}, { 0, 2}, { 0, 2} }, .reset = { { 0, 0}, { 1, 0}, { 2, 0}, { 2, 0} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 1}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 0, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 180
+        { .set = { { 0, 2}, { 1, 2}, { 2, 2}, { 2, 2} }, .reset = { { 2, 0}, { 0, 1}, { 1, 1}, { 1, 1} }, .offset = { 0, 1} }, // 270
+      },
+      {
+        // move left
+        { .set = { {-1, 0}, {-1, 1}, {-1, 2}, {-1, 2} }, .reset = { { 0, 0}, { 0, 1}, { 1, 2}, { 0, 0} }, .offset = {-1, 0} }, // 0
+        { .set = { {-1, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = {-1, 0} }, // 90
+        { .set = { { 0, 1}, { 0, 2}, {-1, 0}, {-1, 0} }, .reset = { { 1, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 1}, { 1, 0}, { 1, 0}, { 1, 0} }, .reset = { { 2, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 1, 0}, { 1, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 2} }, .offset = { 1, 0} }, // 0
+        { .set = { { 1, 1}, { 3, 0}, { 3, 0}, { 3, 0} }, .reset = { { 0, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 90
+        { .set = { { 2, 0}, { 2, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = { 1, 0} }, // 180
+        { .set = { { 3, 0}, { 3, 1}, { 3, 1}, { 3, 1} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { {-1, 2}, {-2, 2}, {-2, 2}, {-2, 2} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = {-2, 1} }, // 0
+        { .set = { { 0,-1}, { 0,-2}, { 0,-2}, { 0,-2} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 0,-2} }, // 90
+        { .set = { { 2, 0}, { 3, 0}, { 3, 0}, { 3, 0} }, .reset = { { 0, 0}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = { 1, 0} }, // 180
+        { .set = { { 2, 2}, { 2, 3}, { 2, 3}, { 2, 3} }, .reset = { { 0, 1}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = { 1, 1} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { { 0, 3}, { 2, 2}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 0, 2} }, // 0
+        { .set = { {-1, 0}, { 0, 2}, { 0, 2}, { 0, 2} }, .reset = { { 1, 0}, { 2, 0}, { 2, 0}, { 2, 0} }, .offset = {-1, 0} }, // 90
+        { .set = { {-1, 0}, { 1,-1}, { 1,-1}, { 1,-1} }, .reset = { { 1, 1}, { 1, 2}, { 1, 2}, { 1, 2} }, .offset = {-1,-1} }, // 180
+        { .set = { { 2,-1}, { 3, 1}, { 3, 1}, { 3, 1} }, .reset = { { 0, 1}, { 1, 1}, { 1, 1}, { 1, 1} }, .offset = { 2,-1} }, // 270
+      },
+    }
+  },
+  { // J
+    .color = _blue,
+    .nullRotation = 0,
+    .draw = { { 0, 2}, { 1, 0}, { 1, 1}, { 1, 2} },
+    .motion = {
+      {
+        // move down
+        { .set = { { 0, 3}, { 1, 3}, { 1, 3}, { 1, 3} }, .reset = { { 0, 2}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 0
+        { .set = { { 0, 2}, { 1, 2}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 1, 1}, { 2, 1}, { 2, 1} }, .offset = { 0, 1} }, // 90
+        { .set = { { 0, 3}, { 1, 1}, { 1, 1}, { 1, 1} }, .reset = { { 0, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 0, 1} }, // 180
+        { .set = { { 0, 1}, { 1, 1}, { 2, 2}, { 2, 2} }, .reset = { { 0, 0}, { 1, 0}, { 2, 0}, { 2, 0} }, .offset = { 0, 1} }, // 270
+      },
+      {
+        // move left
+        { .set = { { 0, 0}, { 0, 1}, {-1, 2}, {-1, 2} }, .reset = { { 1, 0}, { 1, 1}, { 1, 2}, { 1, 2} }, .offset = {-1, 0} }, // 0
+        { .set = { {-1, 0}, {-1, 1}, {-1, 1}, {-1, 1} }, .reset = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 90
+        { .set = { {-1, 0}, {-1, 1}, {-1, 2}, {-1, 2} }, .reset = { { 1, 0}, { 0, 1}, { 0, 2}, { 0, 2} }, .offset = {-1, 0} }, // 180
+        { .set = { {-1, 0}, { 1, 1}, { 1, 1}, { 1, 1} }, .reset = { { 2, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1, 0} }, // 270
+      },
+      {
+        // move right
+        { .set = { { 2, 0}, { 2, 1}, { 2, 2}, { 2, 2} }, .reset = { { 1, 0}, { 1, 1}, { 0, 2}, { 0, 2} }, .offset = { 1, 0} }, // 0
+        { .set = { { 1, 0}, { 3, 1}, { 3, 1}, { 3, 1} }, .reset = { { 0, 0}, { 0, 1}, { 0, 1}, { 0, 1} }, .offset = { 1, 0} }, // 90
+        { .set = { { 1, 1}, { 1, 2}, { 2, 0}, { 2, 0} }, .reset = { { 0, 0}, { 0, 1}, { 0, 2}, { 0, 2} }, .offset = { 1, 0} }, // 180
+        { .set = { { 3, 0}, { 3, 1}, { 3, 1}, { 3, 1} }, .reset = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = { 1, 0} }, // 270
+      },
+      {
+        // rotate left
+        { .set = { { 1, 3}, {-1, 2}, {-1, 2}, {-1, 2} }, .reset = { { 1, 0}, { 1, 1}, { 0, 0}, { 0, 0} }, .offset = {-1, 2} }, // 0
+        { .set = { {-1, 1}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 1, 1}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = {-1,-1} }, // 90
+        { .set = { { 2, 0}, { 0,-1}, { 0,-1}, { 0,-1} }, .reset = { { 0, 1}, { 0, 2}, { 0, 2}, { 0, 2} }, .offset = { 0,-1} }, // 180
+        { .set = { { 2, 2}, { 3, 0}, { 3, 0}, { 3, 0} }, .reset = { { 0, 0}, { 1, 0}, { 1, 0}, { 1, 0} }, .offset = { 2, 0} }, // 270
+      },
+      {
+        // rotate right
+        { .set = { { 2, 2}, { 3, 2}, { 3, 2}, { 3, 2} }, .reset = { { 1, 0}, { 0, 2}, { 0, 2}, { 0, 2} }, .offset = { 1, 1} }, // 0
+        { .set = { { 0, 2}, { 0, 3}, { 0, 3}, { 0, 3} }, .reset = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = { 0, 1} }, // 90
+        { .set = { {-1, 0}, {-2, 0}, {-2, 0}, {-2, 0} }, .reset = { { 1, 0}, { 0, 2}, { 0, 2}, { 0, 2} }, .offset = {-2, 0} }, // 180
+        { .set = { { 2,-1}, { 2,-2}, { 2,-2}, { 2,-2} }, .reset = { { 0, 0}, { 2, 1}, { 2, 1}, { 2, 1} }, .offset = { 1,-2} }, // 270
+      },
+    }
+  },
 };
 
 const orientation_t nextOrientation[5][4] = { // 5 = number of directions to move, 4 = number of orientation a stone can have
@@ -138,20 +350,18 @@ const orientation_t nextOrientation[5][4] = { // 5 = number of directions to mov
 };
 
 stone_t stone;
+shape_t nextShape;
 
 void shapesInit() {
   stone.shape = e_ShapeInvalid;
+  nextShape = e_Z;
 }
 
 void stoneCreate() {
-  static uint8_t cnt = 0;
-  stone.shape = ((shape_t[]){ e_I, e_O, e_T, e_Z, e_S, e_L, e_J })[cnt];
-  cnt++;
-  if (cnt > 1) {
-    cnt = 0;
-  }
+  stone.shape = nextShape;
+  nextShape = ((shape_t[]){ e_I, e_O, e_T, e_Z, e_S, e_L, e_J })[myRandGet() % e_ShapeInvalid];
   stone.orientation = e_0;
-  stone.x = 5;
+  stone.x = 4;
   stone.y = 0;
 }
 
@@ -161,39 +371,100 @@ uint8_t stoneIsValid() {
 
 // all of them return 1 in case of success and 0 in case of error
 static uint8_t move(direction_t direction) {
+  // if this is a rotation and the shape is marked with nullRotation (just the O), do nothing
+  // and return success
   if (motions[stone.shape].nullRotation && (direction == e_RotateLeft || direction == e_RotateRight)) {
     return 1;
   }
-  if (canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[0].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[0].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[1].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[1].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[2].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[2].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[3].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[3].y)) {
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[0].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[0].y, _off);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[1].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[1].y, _off);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[2].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[2].y, _off);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[3].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[3].y, _off);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[0].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[0].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[1].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[1].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[2].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[2].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[3].x, stone.y + motions[stone.shape].motion[direction][stone.orientation].set[3].y, motions[stone.shape].color);
+  // check whether the pixels to move to are free
+  if (canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[0].x, 
+                        stone.y + motions[stone.shape].motion[direction][stone.orientation].set[0].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[1].x, 
+                        stone.y + motions[stone.shape].motion[direction][stone.orientation].set[1].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[2].x, 
+                        stone.y + motions[stone.shape].motion[direction][stone.orientation].set[2].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[3].x, 
+                        stone.y + motions[stone.shape].motion[direction][stone.orientation].set[3].y)) {
+    // if so, reset the pixels the shape moves away from
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[0].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[0].y, 
+                   _off);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[1].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[1].y, 
+                   _off);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[2].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[2].y, 
+                   _off);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].reset[3].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].reset[3].y, 
+                   _off);
+    // and set the pixels the shape moves to to the shape's color
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[0].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].set[0].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[1].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].set[1].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[2].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].set[2].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].motion[direction][stone.orientation].set[3].x, 
+                   stone.y + motions[stone.shape].motion[direction][stone.orientation].set[3].y, 
+                   motions[stone.shape].color);
+    // set the new origin of the shape
     stone.x += motions[stone.shape].motion[direction][stone.orientation].offset.x;
     stone.y += motions[stone.shape].motion[direction][stone.orientation].offset.y;
-    stone.orientation = (nextOrientation[direction][stone.orientation] == e_Keep) ? stone.orientation : nextOrientation[direction][stone.orientation];
+    // set the new orientation of the shape, if required
+    stone.orientation = (nextOrientation[direction][stone.orientation] == e_Keep) ? 
+                        stone.orientation : 
+                        nextOrientation[direction][stone.orientation];
     return 1;
   }
   return 0;
 }
 
+void nextStoneDraw() {
+  miniCanvasClear();
+  miniCanvasSetPixel(motions[nextShape].draw[0].x, 
+                     motions[nextShape].draw[0].y, 
+                     motions[nextShape].color);
+  miniCanvasSetPixel(motions[nextShape].draw[1].x, 
+                     motions[nextShape].draw[1].y, 
+                     motions[nextShape].color);
+  miniCanvasSetPixel(motions[nextShape].draw[2].x, 
+                     motions[nextShape].draw[2].y, 
+                     motions[nextShape].color);
+  miniCanvasSetPixel(motions[nextShape].draw[3].x, 
+                     motions[nextShape].draw[3].y, 
+                     motions[nextShape].color);
+}
+
 uint8_t stoneDraw() { 
+  nextStoneDraw();
+
   uint8_t res = 0;
-  if (canvasIsPixelFree(stone.x + motions[stone.shape].draw[0].x, stone.y + motions[stone.shape].draw[0].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].draw[1].x, stone.y + motions[stone.shape].draw[1].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].draw[2].x, stone.y + motions[stone.shape].draw[2].y) &&
-      canvasIsPixelFree(stone.x + motions[stone.shape].draw[3].x, stone.y + motions[stone.shape].draw[3].y)) {
-    canvasSetPixel(stone.x + motions[stone.shape].draw[0].x, stone.y + motions[stone.shape].draw[0].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].draw[1].x, stone.y + motions[stone.shape].draw[1].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].draw[2].x, stone.y + motions[stone.shape].draw[2].y, motions[stone.shape].color);
-    canvasSetPixel(stone.x + motions[stone.shape].draw[3].x, stone.y + motions[stone.shape].draw[3].y, motions[stone.shape].color);
+  // check if the pixels the shape should be drawn at are free
+  if (canvasIsPixelFree(stone.x + motions[stone.shape].draw[0].x, 
+                        stone.y + motions[stone.shape].draw[0].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].draw[1].x, 
+                        stone.y + motions[stone.shape].draw[1].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].draw[2].x, 
+                        stone.y + motions[stone.shape].draw[2].y) &&
+      canvasIsPixelFree(stone.x + motions[stone.shape].draw[3].x, 
+                        stone.y + motions[stone.shape].draw[3].y)) {
+    // if so, draw the shape
+    canvasSetPixel(stone.x + motions[stone.shape].draw[0].x, 
+                   stone.y + motions[stone.shape].draw[0].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].draw[1].x, 
+                   stone.y + motions[stone.shape].draw[1].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].draw[2].x, 
+                   stone.y + motions[stone.shape].draw[2].y, 
+                   motions[stone.shape].color);
+    canvasSetPixel(stone.x + motions[stone.shape].draw[3].x, 
+                   stone.y + motions[stone.shape].draw[3].y, 
+                   motions[stone.shape].color);
     res = 1;
   }
   return res;

game-ctrl/spi.c

@@ -0,0 +1,50 @@
+#include <msp430g2553.h>
+#include "spi.h"
+
+void spiInit() {
+  // SPI in master mode, most significant bit first
+  UCB0CTL0 = UCMST | UCMSB;
+  // SPI timing config
+  UCB0CTL1 = UCSSEL_3;
+  // Faster than 8 ends up in strange communication errors
+  // between the both MCUs.
+  // With 8 the transfer of a complete 110 pixel canvas takes
+  // about 720us.
+  // 8 was still too fast and caused problems.
+  UCB0BR0 = 16; 
+  UCB0BR1 = 0;
+
+  // BIT5: UCB0CLK
+  // BIT6: UCB0SOMI
+  // BIT7: UCB0SIMO
+  P1SEL |= BIT5 | BIT6 | BIT7;
+  P1SEL2 |= BIT5 | BIT6 | BIT7;
+  P1DIR |= BIT5 | BIT7;
+
+  // Device Select Lines: 0: Canvas, 1: Display, 2: Sound
+  P1DIR |= BIT0 | BIT1 | BIT2;
+  // Disable all of them
+  P1OUT |= BIT0 | BIT1 | BIT2;
+
+  // enable SPI module
+  UCB0CTL1 &= ~UCSWRST;
+}
+
+void spiSendBegin(t_SpiDeviceSelector d) {
+  uint16_t bit = ((uint16_t[]){ BIT0, BIT1, BIT2 })[d];
+  P1OUT &= ~bit;
+}
+
+void spiSendEnd(t_SpiDeviceSelector d) {
+  while (UCB0STAT & UCBUSY);
+  uint16_t bit = ((uint16_t[]){ BIT0, BIT1, BIT2 })[d];
+  P1OUT |= bit;
+}
+
+void spiSendOctet(uint8_t v) {
+  // wait for TX buffer empty
+  while (!(UC0IFG & UCB0TXIFG));
+  // load octet into TX buffer
+  UCB0TXBUF = v;
+}
+

game-ctrl/spi.h

@@ -0,0 +1,16 @@
+#ifndef _SPI_H_
+#define _SPI_H_
+
+#include <stdint.h>
+
+
+typedef enum { e_SPI_CANVAS, e_SPI_DISPLAY, e_SPI_SOUND } t_SpiDeviceSelector;
+
+void spiInit();
+void spiSendBegin(t_SpiDeviceSelector d);
+void spiSendEnd(t_SpiDeviceSelector d);
+void spiSendOctet(uint8_t v); 
+
+
+
+#endif // _SPI_H_

game-ctrl/time.c

@@ -1,16 +0,0 @@
-#include <msp430g2553.h>
-
-#include "time.h"
-#include "PontCoopScheduler.h"
-
-
-void __attribute__ ((interrupt (TIMER0_A0_VECTOR))) ta0_isr() {
-  schUpdate();
-}
-
-void timeInit() {
-  TACCR0 = 32;
-  TACCTL0 = CCIE;
-  TACTL = MC_1 | ID_0 | TASSEL_1 | TACLR;
-}
-

game-ctrl/time.h

@@ -1,10 +0,0 @@
-#ifndef TIME_H_
-#define TIME_H_
-
-#include <stdint.h>
-
-void timeInit();
-
-
-
-#endif /* TIME_H_ */

rgb-driver/Makefile

@@ -4,7 +4,8 @@ OBJDUMP=$(TOOLCHAIN_PREFIX)/bin/msp430-elf-objdump
 
 MCU=msp430g2553
 ARTIFACT=firmware
-COMMON=-Wall -mmcu=$(MCU) -std=gnu99 -I $(TOOLCHAIN_PREFIX)/include -Os -g0 -fdata-sections -ffunction-sections -ggdb -gdwarf-2
+COMMON=-Wall -mmcu=$(MCU) -std=gnu99 -I $(TOOLCHAIN_PREFIX)/include -Os -g0 -fdata-sections -ffunction-sections
+#COMMON+= -ggdb -gdwarf-2 # debug
 CFLAGS=$(COMMON)
 ASFLAGS=$(COMMON) -D__ASSEMBLER__
 

rgb-driver/canvasSize.h

@@ -0,0 +1,10 @@
+#ifndef _CANVAS_SIZE_H_
+#define _CANVAS_SIZE_H_
+
+#define CANVAS_WIDTH 10
+#define CANVAS_HEIGHT 20
+
+#define MINI_CANVAS_WIDTH 3
+#define MINI_CANVAS_HEIGHT 4
+
+#endif // _CANVAS_SIZE_H_

rgb-driver/main.S

@@ -1,5 +1,7 @@
 #include <msp430g2553.h>
 #include "colors.h"
+#include "canvasSize.h"
+
 
 #define PC r0
 #define SP r1
@@ -59,13 +61,11 @@
 
   .section ".data"
 screendata:
-  .rept 110 ;; number of leds in hardward
+  .rept (CANVAS_HEIGHT*CANVAS_WIDTH) + (MINI_CANVAS_HEIGHT*MINI_CANVAS_WIDTH) ;; number of leds in hardward
   .byte 0
   .endr
 screendataend:
   .byte 0xff
-data_forward_pointer:
-  .word 0
 
 
   ;; .text is the name of the section, it is a hint for the linker to
@@ -96,11 +96,12 @@ init:
   ;; BIT3: Signal waiting for data
   mov.b   #BIT0|BIT1|BIT2|BIT3, &P1DIR
   mov.b   #0,&P1OUT
+  ;; BIT4: spi, UCB0STE
   ;; BIT5: spi, UCB0CLK
   ;; BIT6: spi, UCB0SOMI
   ;; BIT7: spi, UCB0SIMO
-  mov.b   #BIT5|BIT6|BIT7, &P1SEL
-  mov.b   #BIT5|BIT6|BIT7, &P1SEL2
+  mov.b   #BIT4|BIT5|BIT6|BIT7, &P1SEL
+  mov.b   #BIT4|BIT5|BIT6|BIT7, &P1SEL2
   ;; BIT4: long pulse
   ;; BIT1: short pulse
   mov.b   #BIT1|BIT4,&P2DIR
@@ -121,8 +122,8 @@ init:
   mov.w   #OUTMOD_7,&TA1CCTL2
 
   ;; spi configuration
-  ;;  USCI B to slave mode
-  mov.b   #UCSYNC, &UCB0CTL0
+  ;;  USCI B to slave mode, enable STE and most significant bit first
+  mov.b   #UCSYNC|UCMODE_2|UCMSB, &UCB0CTL0
   mov.b   #0x00, &UCB0CTL1
 
   ;; make sure the isr will not immediately start
@@ -136,70 +137,20 @@ init:
 
 ;; ----------------------------------------------------
 mainloop:
-  call    #forwardscreen_init
   call    #resetscreen
 
 mainloop_draw:
   call    #drawscreen
 
-  ;; signal waiting for data
   set_signal_waiting_for_data
 
-  ;call    #forwardscreen
-  ;call    #wait
   call    #receivedata
 
-  ;; data has been received, clear signal
   clear_signal_waiting_for_data
 
   jmp     mainloop_draw
 
 
-;; ----------------------------------------------------
-wait:
-  push    r11
-  push    r12
-
-  mov.w   #0x0040, r11
-wait_continue_1:
-  mov.w   #0xffff, r12
-wait_continue_2:
-  dec.w   r12
-  jnz     wait_continue_2
-  dec.w   r11
-  jnz     wait_continue_1
-
-  pop     r12
-  pop     r11
-  ret
-
-
-;; ----------------------------------------------------
-forwardscreen_init:
-  mov.w   #screendata, &data_forward_pointer
-  ret
-
-;; ----------------------------------------------------
-forwardscreen:
-  push    r8
-  push    r10
-
-  mov.w   #screendataend, r8
-  mov.w   data_forward_pointer, r10
-  mov.b   #_off, @r10
-  inc.w   r10
-  mov.b   #_blue, @r10
-  cmp.w   r10, r8
-  jnz     forwardscreen_done
-  mov.w   #screendata, r10
-forwardscreen_done:
-  mov.w   r10, data_forward_pointer
-
-  pop     r10
-  pop     r8
-  ret
-  
-
 ;; ----------------------------------------------------
 resetscreen:
   push    r7
@@ -231,11 +182,6 @@ receivedata_wait_for_control_octet:
 
   ;; get control or address octet from buffer register
   mov.b   UCB0RXBUF, r9
-  ;; check whether value == 0xff (wait for the whole
-  ;; set of data to fill the screendata)
-  cmp.b   #0xff, r9
-  ;; receive all data
-  jz      receivedata_wait_for_all_data
   ;; check whether value == 0xfe (no more data)
   cmp.b   #0xfe, r9
   ;; no more data
@@ -253,10 +199,6 @@ receivedata_wait_for_octet:
   ;; next address/control octet
   jmp     receivedata_wait_for_control_octet
 
-receivedata_wait_for_all_data:
-  ;; this is a bit dangerous, if the application controller
-  ;; sends too few data, we are in a dead lock
-
 receivedata_end:
   pop     r10
   pop     r9

sound-driver/Makefile

@@ -0,0 +1,31 @@
+TOOLCHAIN_PREFIX=/opt/msp430-gcc
+CC=$(TOOLCHAIN_PREFIX)/bin/msp430-elf-gcc
+OBJDUMP=$(TOOLCHAIN_PREFIX)/bin/msp430-elf-objdump
+
+ARTIFACT=firmware
+MCU=msp430g2553
+CFLAGS=-Wall -mmcu=$(MCU) -std=gnu99 -I $(TOOLCHAIN_PREFIX)/include -O1 -g0
+
+# for debugging
+CFLAGS+= -g3 -ggdb -gdwarf-2
+
+LDFLAGS=-mmcu=$(MCU) -L $(TOOLCHAIN_PREFIX)/include
+
+$(ARTIFACT).elf:	main.o scheduler.o spi.o psg.o sequencer.o melody.o
+	$(CC) -o $@ $(LDFLAGS) $^
+	$(OBJDUMP) -D $(ARTIFACT).elf > $(ARTIFACT).txt
+
+.c.o:	
+	$(CC) $(CFLAGS) -c $<
+
+
+.PHONY: all
+all:	$(ARTIFACT).elf
+
+.PHONY: clean
+clean:
+	-rm -f *.o $(ARTIFACT).elf $(ARTIFACT).txt
+
+.PHONY: upload
+upload: $(ARTIFACT).elf
+	mspdebug rf2500 "prog $(ARTIFACT).elf"

sound-driver/firmware.gdb

@@ -0,0 +1,2 @@
+target remote localhost:2000
+file firmware.elf

sound-driver/main.c

@@ -0,0 +1,37 @@
+#include <msp430g2553.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "spi.h"
+#include "psg.h"
+#include "scheduler.h"
+#include "sequencer.h"
+#include "melody.h"
+
+int main() {
+  WDTCTL = WDTPW | WDTHOLD;
+
+  __disable_interrupt();
+
+  // highest possible system clock
+  DCOCTL = DCO0 | DCO1 | DCO2;
+  BCSCTL1 = XT2OFF | RSEL0 | RSEL1 | RSEL2 | RSEL3;
+  BCSCTL2 = 0;
+  BCSCTL3 = 0;
+
+
+  schInit();
+
+  spiInit();
+  psgInit();
+  sequencerInit();
+
+  __enable_interrupt();
+
+  melodyInit();
+
+
+  while (1) {
+    schExec();
+  }
+}

sound-driver/melody.c

@@ -0,0 +1,729 @@
+#include <stdbool.h>
+#include "psg.h"
+#include "sequencer.h"
+
+
+const t_tone notes[] = {
+  { .octave = e_O_3,    .note = e_G,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Es,    .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_F,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  // Triller
+  { .octave = e_O_3,    .note = e_Es,    .length = e_L_1_32,    .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_F,     .length = e_L_1_32,    .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Es,    .length = e_L_1_32,    .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_F,     .length = e_L_1_32,    .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Es,    .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_G,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_F,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Es,    .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_4,     .legato = true , .staccato = false },
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Es,    .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_F,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_G,     .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_Es,    .length = e_L_1_4,     .legato = false, .staccato = true  },
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = true  },
+
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_4,     .legato = false, .staccato = false },
+
+
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_F,     .length = e_L_1_8,     .legato = true , .staccato = false },
+  { .octave = e_O_3,    .note = e_F,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_As,    .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_B,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_As,    .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_G,     .length = e_L_1_4,     .legato = true , .staccato = false },
+  { .octave = e_O_3,    .note = e_G,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Es,    .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_G,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_F,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Es,    .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Es,    .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_F,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_G,     .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_Es,    .length = e_L_1_4,     .legato = false, .staccato = true  },
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = true  },
+
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  { .octave = e_O_Null, .note = e_Null,  .length = e_L_EndMark, .legato = false, .staccato = false },
+};
+
+
+const t_tone tetris1[] = {
+  // -------
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_4,     .legato = true,  .staccato = false }, // diese und die naechste zusammen: ein punktiertes Viertel
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_F,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_G,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_F,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = true,  .staccato = false }, // punktiert
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  // -------
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_4,     .legato = true,  .staccato = false }, // diese und die naechste zusammen: ein punktiertes Viertel
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_F,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_G,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_F,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = true,  .staccato = false }, // punktiert
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_D,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  // -------
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_D,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_D,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1,       .legato = false, .staccato = false },
+  
+  // -------
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_D,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_D,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1,       .legato = false, .staccato = false },
+};
+
+const t_tone tetris2[] = {
+  // -------
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_F,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_G,     .length = e_L_1_4,     .legato = true,  .staccato = false }, // punktiert
+  { .octave = e_O_4,    .note = e_G,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_G,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_G,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_F,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  // -------
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_F,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_G,     .length = e_L_1_4,     .legato = true,  .staccato = false }, // punktiert
+  { .octave = e_O_4,    .note = e_G,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_G,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_G,     .length = e_L_1_16,    .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_F,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_5,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_4,    .note = e_E,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  // -------
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_G,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1,       .legato = false, .staccato = false },
+  
+  // -------
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_G,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_4,    .note = e_C,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_2,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_2,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1,       .legato = false, .staccato = false },
+};
+
+const t_tone tetris3[] = {
+  // -------
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_F,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_G,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_G,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  // -------
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_3,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_D,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_F,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_C,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_G,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_G,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_H,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_4,     .legato = false, .staccato = false },
+  { .octave = e_O_Null, .note = e_Pause, .length = e_L_1_4,     .legato = false, .staccato = false },
+
+  // -------
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+   
+  // -------
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_A,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_2,    .note = e_Gis,   .length = e_L_1_8,     .legato = false, .staccato = false },
+  { .octave = e_O_3,    .note = e_E,     .length = e_L_1_8,     .legato = false, .staccato = false },
+};
+
+t_melody melody = {
+  .pace = 4,
+  .amplitude = 3,
+  .channel = 0,
+  .tones = notes
+};
+
+
+t_melody melodyTetris1 = {
+  .pace = 4,
+  .amplitude = 3,
+  .channel = 0,
+  .tones = tetris1
+};
+t_melody melodyTetris2 = {
+  .pace = 4,
+  .amplitude = 3,
+  .channel = 1,
+  .tones = tetris2
+};
+t_melody melodyTetris3 = {
+  .pace = 4,
+  .amplitude = 3,
+  .channel = 1,
+  .tones = tetris3
+};
+
+
+void melodyInit() {
+  sequencerPlayMelody(&melodyTetris1);
+  sequencerPlayMelody(&melodyTetris2);
+  sequencerPlayMelody(&melodyTetris3);
+}
+
+

sound-driver/melody.h

@@ -0,0 +1,8 @@
+#ifndef _MELODY_H_
+#define _MELODY_H_
+
+
+void melodyInit();
+
+
+#endif // _MELODY_H_

sound-driver/psg.c

@@ -0,0 +1,163 @@
+#include <msp430g2553.h>
+#include <stdint.h>
+#include <stdlib.h>
+
+#include "psg.h"
+#include "scheduler.h"
+
+
+
+const uint16_t frequencyCodes[8][12] = {
+  //    C,   Cis,     D,   Dis,     E,     F,   Fis,     G,   Gis,     A,   Ais,     H
+  { 06535, 06234, 05747, 05474, 05233, 05002, 04563, 04353, 04153, 03762, 03600, 03424 },  // Octave 1
+  { 03256, 03116, 02764, 02636, 02515, 02401, 02271, 02165, 02065, 01771, 01700, 01612 },  // Octave 2
+  { 01527, 01447, 01372, 01317, 01247, 01201, 01135, 01073, 01033, 00774, 00740, 00705 },  // Octave 3
+  { 00654, 00624, 00575, 00550, 00523, 00500, 00456, 00435, 00415, 00376, 00360, 00342 },  // Octave 4
+  { 00326, 00312, 00276, 00264, 00252, 00240, 00227, 00217, 00207, 00177, 00170, 00161 },  // Octave 5
+  { 00153, 00145, 00137, 00132, 00125, 00120, 00114, 00107, 00103, 00100, 00074, 00071 },  // Octave 6
+  { 00065, 00062, 00060, 00055, 00052, 00050, 00046, 00044, 00042, 00040, 00036, 00034 },  // Octave 7
+  { 00033, 00031, 00030, 00026, 00025, 00024, 00023, 00022, 00021, 00020, 00017, 00016 }   // Octave 8
+};
+
+
+#define ADDR_DATA_REG P2OUT
+#define BUS_CTRL_REG P1OUT
+#define BC1 BIT3
+#define BDIR BIT1
+
+#define R0 0
+#define CHANNEL_A_TONE_PERIOD_FINE_REG R0
+#define R1 1
+#define CHANNEL_A_TONE_PERIOD_COARSE_REG R1
+#define R2 2
+#define CHANNEL_B_TONE_PERIOD_FINE_REG R2
+#define R3 3
+#define CHANNEL_B_TONE_PERIOD_COARSE_REG R3
+#define R4 4
+#define CHANNEL_C_TONE_PERIOD_FINE_REG R4
+#define R5 5
+#define CHANNEL_C_TONE_PERIOD_COARSE_REG R5
+#define R6 6
+#define NOISE_PERIOD_REG R6
+#define R7 7
+#define _ENABLE_REG R7
+#define R10 010
+#define CHANNEL_A_AMPLITUDE_REG R10
+#define R11 011
+#define CHANNEL_B_AMPLITUDE_REG R11
+#define R12 012
+#define CHANNEL_C_AMPLITUDE_REG R12
+#define R13 013
+#define ENVELOPE_PERIOD_FINE_REG R13
+#define R14 014
+#define ENVELOPE_PERIOD_COARSE_REG R13
+#define R15 015
+#define ENVELOPE_SHAPE_REG R15
+
+uint8_t psgShadowRegisters[14];
+
+inline static void BUS_OP_NACT() {
+  BUS_CTRL_REG &= ~(BDIR | BC1);
+}
+inline static void BUS_OP_INTAK() {
+  BUS_CTRL_REG |= BDIR | BC1;
+}
+inline static void BUS_OP_DWS() {
+  BUS_CTRL_REG |= BDIR;
+  BUS_CTRL_REG &= ~BC1;
+}
+
+static void delay() {
+asm volatile (
+    "push r12\n"
+    "mov.w #5, r12\n"
+    "loop:\n"
+    "dec.w r12\n"
+    "jnz loop\n"
+    "pop r12\n"
+);
+}
+
+uint8_t psgReadShadow(uint8_t address) {
+  return psgShadowRegisters[address];
+}
+
+void psgWrite(uint8_t address, uint8_t data) {
+  psgShadowRegisters[address] = data;
+
+  // according to "State Timing" (p. 15) of datasheet
+
+  // put bus into inactive state
+  BUS_OP_NACT();
+
+  // put address on bus
+  ADDR_DATA_REG = address;
+
+  // address latch mode
+  BUS_OP_INTAK();
+
+  // latch address
+  BUS_OP_NACT();
+
+  // put data on bus
+  ADDR_DATA_REG = data;
+  
+  // set write to psg
+  BUS_OP_DWS();
+
+  // set inactive again
+  BUS_OP_NACT();
+}
+
+void psgWriteFrequency(uint8_t channel, uint16_t frequencyCode) {
+  psgWrite(CHANNEL_A_TONE_PERIOD_FINE_REG + (channel * 2), (frequencyCode & 0x00ff));
+  psgWrite(CHANNEL_A_TONE_PERIOD_COARSE_REG + (channel * 2), ((frequencyCode >> 8) & 0x000f));
+}
+
+void psgPlayTone(uint8_t channel, t_octave octave, t_note note) {
+  if (note == e_Pause) {
+    psgWrite(_ENABLE_REG, psgReadShadow(_ENABLE_REG) | (1 << channel));
+  } else {
+    psgWrite(_ENABLE_REG, psgReadShadow(_ENABLE_REG) & ~(1 << channel));
+    psgWriteFrequency(channel, frequencyCodes[octave][note]);
+  }
+}
+
+void psgAmplitude(uint8_t channel, uint8_t volume) {
+  psgWrite(CHANNEL_A_AMPLITUDE_REG + channel, volume);
+}
+
+void psgInit() {
+  // address/data bus
+  P2DIR = 0xff;
+  P2SEL = 0;
+  P2SEL2 = 0;
+
+  // sound chip reset
+  // BIT2: /RST
+  P1DIR |= BIT2;
+
+  // put sound chip into reset state
+  P1OUT &= ~BIT2;
+  delay();
+  delay();
+  delay();
+  
+  // bus control lines
+  // BIT3: BC1
+  // BIT1: BDIR
+  P1DIR |= BIT1 | BIT3;
+
+  // put bus into inactive state
+  BUS_CTRL_REG &= ~(BDIR | BC1);
+  
+  // release sound chip from reset state
+  P1OUT |= BIT2;
+  delay();
+  delay();
+  delay();
+
+  // disable everything
+  psgWrite(_ENABLE_REG, 0xff);
+}
+

sound-driver/psg.h

@@ -0,0 +1,52 @@
+#ifndef _PSG_H_
+#define _PSG_H_
+
+#include <stdint.h>
+
+typedef enum {
+  e_O_1 = 0,
+  e_O_2,
+  e_O_3,
+  e_O_4,
+  e_O_5,
+  e_O_6,
+  e_O_7,
+  e_O_8,
+  e_O_Null
+} t_octave;
+
+typedef enum {
+  e_C = 0,
+  e_Cis,
+  e_D,
+  e_Dis,
+  e_E,
+  e_F,
+  e_Fis,
+  e_G,
+  e_Gis,
+  e_A,
+  e_Ais,
+  e_H,
+  e_Pause,
+  e_Null
+} t_note;
+    
+#define e_Es e_Dis
+#define e_As e_Gis
+#define e_B e_Ais
+
+
+void psgInit();
+
+void psgPlayTone(uint8_t channel, t_octave octave, t_note note);
+void psgAmplitude(uint8_t channel, uint8_t volume);
+
+// low level
+void psgWriteFrequency(uint8_t channel, uint16_t frequencyCode);
+
+// very low level
+void psgWrite(uint8_t address, uint8_t data);
+uint8_t psgReadShadow(uint8_t address);
+
+#endif // _PSG_H_

sound-driver/scheduler.c

@@ -0,0 +1,92 @@
+#include <stdlib.h>
+#include <msp430g2553.h>
+#include "scheduler.h"
+
+tTask tasks[MAX_NUM_OF_TASKS];
+
+
+void schInit() {
+  P1DIR |= BIT0;
+  TACCR0 = 19600;
+  TACCTL0 = CCIE;
+  TACTL = MC_1 | ID_0 | TASSEL_2 | TACLR;
+
+  for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
+    tasks[i].delay = 0;
+    tasks[i].period = 0;
+    tasks[i].run = 0;
+    tasks[i].exec = NULL;
+    tasks[i].handle = NULL;
+  }
+}
+
+void __attribute__ ((interrupt (TIMER0_A0_VECTOR))) schUpdate() {
+  P1OUT ^= BIT0;
+  for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
+    if (tasks[i].exec != NULL) {
+      if (tasks[i].delay == 0) {
+        tasks[i].delay = tasks[i].period;
+        tasks[i].run++;
+      } else {
+        tasks[i].delay--;
+      }
+    }
+  }
+}
+
+uint16_t schAdd(void (*exec)(void *), void *handle, uint32_t delay, uint32_t period) {
+  uint16_t taskId = 0xffff;
+  for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
+    if (tasks[i].exec == NULL) {
+      tasks[i].delay = delay;
+      tasks[i].period = period;
+      if (delay == 0 && period == 0) {
+        tasks[i].run = 1;
+      } else {
+        tasks[i].run = 0;
+      }
+      tasks[i].exec = exec;
+      tasks[i].handle = handle;
+      taskId = i;
+      break;
+    }
+  }
+  return taskId;
+}
+
+/*
+void schDel(void (*exec)(void *), void *handle) {
+  for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
+    if ((tasks[i].exec == exec) && (tasks[i].handle == handle)) {
+      tasks[i].exec = NULL;
+      break;
+    }
+  }
+}
+*/
+void schDel(uint16_t taskId) {
+  tasks[taskId].exec = NULL;
+}
+
+void schExec() {
+  for (uint16_t i = 0; i < MAX_NUM_OF_TASKS; i++) {
+    // synchronize access to tasks[].run
+    __disable_interrupt(); 
+    if (tasks[i].exec != NULL && tasks[i].run > 0) {
+      tasks[i].run--;
+      // synchronize access to tasks[].run
+      // reenable interrupts before actually executing task
+      __enable_interrupt();
+      tasks[i].exec(tasks[i].handle);
+      if (tasks[i].period == 0) {
+        tasks[i].exec = NULL;
+      }
+    } else {
+      // synchronize access to tasks[].run
+      // reenable interrupts in case task is not yet executable
+      __enable_interrupt();
+    }
+  }
+}
+
+

sound-driver/scheduler.h

@@ -0,0 +1,28 @@
+#ifndef PONTCOOPSCHEDULER_H_
+#define PONTCOOPSCHEDULER_H_
+
+
+#include <stdint.h>
+
+
+
+#define MAX_NUM_OF_TASKS 8
+
+
+typedef struct {
+  uint16_t delay;
+  uint16_t period;
+  uint8_t run;
+  void (*exec)(void *handle);
+  void *handle;
+} tTask;
+
+
+void schInit();
+uint16_t schAdd(void (*exec)(void *), void *handle, uint32_t delay, uint32_t period);
+// void schDel(void (*exec)(void *), void *handle);
+void schDel(uint16_t taskId);
+void schExec();
+
+
+#endif /* PONTCOOPSCHEDULER_H_ */

sound-driver/sequencer.c

@@ -0,0 +1,60 @@
+#include "sequencer.h"
+#include "scheduler.h"
+#include "psg.h"
+
+
+
+void sequencerInit() {
+}
+
+void sequencerExec(void *handle) {  
+  t_melody *melody = (t_melody*) handle;
+
+  switch (melody->state) {
+    case e_Init:
+      psgAmplitude(melody->channel, melody->amplitude);
+      melody->state = e_PlayTone;
+      break;
+    case e_PlayTone:
+      if (melody->tones[melody->idx].length == e_L_EndMark) {
+        melody->idx = 0;
+      }
+      psgPlayTone(melody->channel, melody->tones[melody->idx].octave, melody->tones[melody->idx].note);
+      melody->lengthCnt = (melody->tones[melody->idx].staccato) ? (melody->tones[melody->idx].length / 2) : melody->tones[melody->idx].length;
+      melody->state = e_HoldTone;
+      break;
+    case e_HoldTone:
+      melody->lengthCnt -= 1;
+      if (melody->lengthCnt == 0) {
+        melody->state = (melody->tones[melody->idx].staccato) ? e_StaccatoBreak : e_SeparateTone;
+      }
+      break;
+    case e_StaccatoBreak:
+      psgPlayTone(melody->channel, e_O_Null, e_Pause);
+      melody->lengthCnt = melody->tones[melody->idx].length / 2;
+      melody->state = e_HoldStaccatoBreak;
+      break;
+    case e_HoldStaccatoBreak:
+      melody->lengthCnt -= 1;
+      if (melody->lengthCnt == 0) {
+        melody->state = e_SeparateTone;
+      }
+      break;
+    case e_SeparateTone:
+      if (! (melody->tones[melody->idx].legato)) {
+        psgPlayTone(melody->channel, e_O_Null, e_Pause);
+      }
+      melody->idx += 1;
+      melody->state = e_PlayTone;
+      break;
+  }
+}
+
+uint16_t sequencerPlayMelody(t_melody *melody) {
+  melody->idx = 0;
+  melody->lengthCnt = 0;
+  melody->state = e_Init;
+
+  return schAdd(sequencerExec, (void*) melody, 0, melody->pace);
+}
+

sound-driver/sequencer.h

@@ -0,0 +1,50 @@
+#ifndef _SEQUENCER_H_
+#define _SEQUENCER_H_
+
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "psg.h"
+
+typedef enum {
+  e_L_EndMark = 0,
+  e_L_1 = 320,
+  e_L_1_2 = 160,
+  e_L_1_4 = 80,
+  e_L_1_8 = 40,
+  e_L_1_16 = 20,
+  e_L_1_32 = 10,
+} t_noteLength;
+
+typedef struct {
+  t_octave octave;
+  t_note note;
+  t_noteLength length;
+  bool legato; 
+  bool staccato;
+} t_tone;
+
+typedef enum { 
+  e_Init,
+  e_PlayTone, 
+  e_HoldTone, 
+  e_StaccatoBreak,
+  e_HoldStaccatoBreak,
+  e_SeparateTone 
+} t_sequencerState;
+
+typedef struct {
+  uint16_t idx;
+  uint8_t lengthCnt;
+  t_sequencerState state;
+  uint8_t pace;
+  uint8_t amplitude;
+  uint8_t channel;
+  const t_tone *tones;
+} t_melody;
+
+void sequencerInit();
+uint16_t sequencerPlayMelody(t_melody *melody);
+
+
+#endif // _SEQUENCER_H_

sound-driver/spi.c

@@ -0,0 +1,29 @@
+#include <msp430g2553.h>
+#include "spi.h"
+
+
+void __attribute__ ((interrupt (USCIAB0RX_VECTOR))) receive() {
+  if (UC0IFG & UCB0RXIFG) {
+    // receive an octet
+  }
+}
+
+
+void spiInit() {
+  // SPI slave
+  // BIT4: UCB0STE
+  // BIT5: UCB0CLK
+  // BIT6: UCB0SOMI
+  // BIT7: UCB0SIMO
+  P1SEL |= BIT4 | BIT5 | BIT6 | BIT7;
+  P1SEL2 |= BIT4 | BIT5 | BIT6 | BIT7;
+
+  // most significant bit first, enable STE
+  UCB0CTL0 = UCSYNC | UCMSB | UCMODE_2;
+  UCB0CTL1 = 0x00;
+
+  // enable RX interrupt
+  UC0IE |= UCB0RXIE;
+}
+
+

sound-driver/spi.h

@@ -0,0 +1,9 @@
+#ifndef _SPI_H_
+#define _SPI_H_
+
+
+void spiInit();
+
+
+
+#endif // _SPI_H_