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my own random

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This commit is contained in:
Wolfgang Hottgenroth 2019-02-03 23:19:09 +01:00
parent f6f69dd9b2
commit a31c929053
Signed by: wn
GPG Key ID: B586EAFCDF2F65F4
4 changed files with 159 additions and 10 deletions
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2
Makefile
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@ -2,7 +2,7 @@ CC=msp430-gcc
CFLAGS=-O3 -g0 -Wall -mmcu=msp430g2553 -std=gnu99 -I hottislib CFLAGS=-O3 -g0 -Wall -mmcu=msp430g2553 -std=gnu99 -I hottislib
LDFLAGS=-mmcu=msp430g2553 LDFLAGS=-mmcu=msp430g2553
blinky1.elf: main.o led.o time.o pattern.o PontCoopScheduler.o blinky1.elf: main.o led.o time.o pattern.o PontCoopScheduler.o myrand.o
$(CC) -o $@ $(LDFLAGS) $^ $(CC) -o $@ $(LDFLAGS) $^
PontCoopScheduler.o: hottislib/PontCoopScheduler.c hottislib/PontCoopScheduler.h PontCoopScheduler.o: hottislib/PontCoopScheduler.c hottislib/PontCoopScheduler.h

115
myrand.c Normal file
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@ -0,0 +1,115 @@
#include "myrand.h"
uint8_t numbers[] = {
220,
60,
136,
163,
230,
44,
255,
40,
252,
66,
201,
204,
142,
232,
33,
26,
59,
188,
68,
92,
93,
58,
69,
158,
193,
132,
30,
152,
128,
126,
23,
202,
182,
126,
47,
119,
131,
104,
102,
38,
119,
24,
203,
244,
24,
216,
179,
71,
186,
202,
246,
64,
102,
67,
168,
255,
21,
104,
138,
23,
220,
134,
16,
196,
39,
105,
214,
240,
27,
122,
120,
175,
72,
123,
88,
229,
247,
203,
85,
143,
8,
232,
207,
113,
236,
7,
82,
195,
254,
178,
77,
32,
182,
150,
223,
183,
246,
255,
104,
72,
};
uint8_t myrand() {
static uint16_t i = 0;
uint8_t r = numbers[i];
i++;
if (i > sizeof(numbers)) {
i = 0;
}
return r;
}

9
myrand.h Normal file
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@ -0,0 +1,9 @@
#ifndef MYRAND_H_
#define MYRAND_H_
#include <stdlib.h>
uint8_t myrand();
#endif // MYRAND_H_

43
pattern.c
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@ -2,7 +2,7 @@
#include "led.h" #include "led.h"
#include "PontCoopScheduler.h" #include "PontCoopScheduler.h"
#include <stdlib.h> #include <stdlib.h>
#include "myrand.h"
/* /*
* traversing the whole matrix * traversing the whole matrix
@ -73,6 +73,7 @@ void patternExec() {
void patternExec() { void patternExec() {
static uint8_t state = 0; static uint8_t state = 0;
static uint8_t column = 0; static uint8_t column = 0;
static uint8_t stay = 0;
switch (state) { switch (state) {
case 0: case 0:
@ -86,23 +87,47 @@ void patternExec() {
break; break;
case 1: case 1:
// select new column, row 2 // select new column, row 2
column = ((uint8_t) rand()) & 0x3; column = myrand() & 0x3;
ledSetMatrix(column, 2, RED); ledSetMatrix(column, 2, RED);
stay = myrand() & 0xf;
state = 2; state = 2;
break; break;
case 2: case 2:
// stay
if (stay == 0) {
state = 3;
}
stay--;
break;
case 3:
// same column, row 1 // same column, row 1
ledSetMatrix(column, 1, RED); ledSetMatrix(column, 1, RED);
ledSetMatrix(column, 2, OFF); ledSetMatrix(column, 2, OFF);
state = 3; stay = myrand() & 0xf;
break;
case 3:
// same column, row 0
ledSetMatrix(column, 0, RED);
ledSetMatrix(column, 1, OFF);
state = 4; state = 4;
break; break;
case 4: case 4:
// stay
if (stay == 0) {
state = 5;
}
stay--;
break;
case 5:
// same column, row 0
ledSetMatrix(column, 0, RED);
ledSetMatrix(column, 1, OFF);
stay = myrand() & 0xf;
state = 6;
break;
case 6:
// stay
if (stay == 0) {
state = 7;
}
stay--;
break;
case 7:
// same column, row 0 off // same column, row 0 off
ledSetMatrix(column, 0, OFF); ledSetMatrix(column, 0, OFF);
state = 1; state = 1;
@ -116,5 +141,5 @@ void patternExec() {
void patternInit() { void patternInit() {
schAdd(patternExec, NULL, 0, 1000); schAdd(patternExec, NULL, 0, 100);
} }