rotary and logic integrated, rotary not working good

cube/output/ttt2/Inc/mxconstants.h

@@ -45,6 +45,12 @@
 #define LED_GPIO_Port GPIOC
 #define ERROR_Pin GPIO_PIN_14
 #define ERROR_GPIO_Port GPIOC
+#define ROTARY_B_Pin GPIO_PIN_3
+#define ROTARY_B_GPIO_Port GPIOB
+#define ROTARY_A_Pin GPIO_PIN_4
+#define ROTARY_A_GPIO_Port GPIOB
+#define SWITCH_Pin GPIO_PIN_5
+#define SWITCH_GPIO_Port GPIOB
 #define OLED_CS_Pin GPIO_PIN_7
 #define OLED_CS_GPIO_Port GPIOB
 #define OLED_DC_Pin GPIO_PIN_8

cube/output/ttt2/Inc/stm32f1xx_it.h

@@ -54,6 +54,9 @@ void SVC_Handler(void);
 void DebugMon_Handler(void);
 void PendSV_Handler(void);
 void SysTick_Handler(void);
+void EXTI3_IRQHandler(void);
+void EXTI4_IRQHandler(void);
+void EXTI9_5_IRQHandler(void);
 
 #ifdef __cplusplus
 }

cube/output/ttt2/Src/main.c

@@ -231,12 +231,28 @@ static void MX_GPIO_Init(void)
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
   HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
+  /*Configure GPIO pins : ROTARY_B_Pin ROTARY_A_Pin SWITCH_Pin */
+  GPIO_InitStruct.Pin = ROTARY_B_Pin|ROTARY_A_Pin|SWITCH_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
   /*Configure GPIO pins : OLED_CS_Pin OLED_DC_Pin OLED_RST_Pin */
   GPIO_InitStruct.Pin = OLED_CS_Pin|OLED_DC_Pin|OLED_RST_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
+  /* EXTI interrupt init*/
+  HAL_NVIC_SetPriority(EXTI3_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI3_IRQn);
+
+  HAL_NVIC_SetPriority(EXTI4_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI4_IRQn);
+
+  HAL_NVIC_SetPriority(EXTI9_5_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);
+
 }
 
 /* USER CODE BEGIN 4 */

cube/output/ttt2/Src/stm32f1xx_it.c

@@ -183,6 +183,48 @@ void SysTick_Handler(void)
 /* please refer to the startup file (startup_stm32f1xx.s).                    */
 /******************************************************************************/
 
+/**
+* @brief This function handles EXTI line3 interrupt.
+*/
+void EXTI3_IRQHandler(void)
+{
+  /* USER CODE BEGIN EXTI3_IRQn 0 */
+
+  /* USER CODE END EXTI3_IRQn 0 */
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_3);
+  /* USER CODE BEGIN EXTI3_IRQn 1 */
+
+  /* USER CODE END EXTI3_IRQn 1 */
+}
+
+/**
+* @brief This function handles EXTI line4 interrupt.
+*/
+void EXTI4_IRQHandler(void)
+{
+  /* USER CODE BEGIN EXTI4_IRQn 0 */
+
+  /* USER CODE END EXTI4_IRQn 0 */
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_4);
+  /* USER CODE BEGIN EXTI4_IRQn 1 */
+
+  /* USER CODE END EXTI4_IRQn 1 */
+}
+
+/**
+* @brief This function handles EXTI line[9:5] interrupts.
+*/
+void EXTI9_5_IRQHandler(void)
+{
+  /* USER CODE BEGIN EXTI9_5_IRQn 0 */
+
+  /* USER CODE END EXTI9_5_IRQn 0 */
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_5);
+  /* USER CODE BEGIN EXTI9_5_IRQn 1 */
+
+  /* USER CODE END EXTI9_5_IRQn 1 */
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */

cube/output/ttt2/ttt2.ioc

@@ -27,9 +27,12 @@ Mcu.Name=STM32F103C(8-B)Tx
 Mcu.Package=LQFP48
 Mcu.Pin0=PC13-TAMPER-RTC
 Mcu.Pin1=PC14-OSC32_IN
-Mcu.Pin10=PB8
+Mcu.Pin10=PB4
-Mcu.Pin11=PB9
+Mcu.Pin11=PB5
-Mcu.Pin12=VP_SYS_VS_Systick
+Mcu.Pin12=PB7
+Mcu.Pin13=PB8
+Mcu.Pin14=PB9
+Mcu.Pin15=VP_SYS_VS_Systick
 Mcu.Pin2=PD0-OSC_IN
 Mcu.Pin3=PD1-OSC_OUT
 Mcu.Pin4=PA0-WKUP
@@ -37,14 +40,17 @@ Mcu.Pin5=PA5
 Mcu.Pin6=PA7
 Mcu.Pin7=PA13
 Mcu.Pin8=PA14
-Mcu.Pin9=PB7
+Mcu.Pin9=PB3
-Mcu.PinsNb=13
+Mcu.PinsNb=16
 Mcu.UserConstants=
 Mcu.UserName=STM32F103C8Tx
 MxCube.Version=4.16.1
 MxDb.Version=DB.4.0.161
 NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true
 NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true
+NVIC.EXTI3_IRQn=true\:0\:0\:false\:false\:true
+NVIC.EXTI4_IRQn=true\:0\:0\:false\:false\:true
+NVIC.EXTI9_5_IRQn=true\:0\:0\:false\:false\:true
 NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true
 NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true
 NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true
@@ -62,6 +68,24 @@ PA5.Mode=TX_Only_Simplex_Unidirect_Master
 PA5.Signal=SPI1_SCK
 PA7.Mode=TX_Only_Simplex_Unidirect_Master
 PA7.Signal=SPI1_MOSI
+PB3.GPIOParameters=GPIO_PuPd,GPIO_Label,GPIO_ModeDefaultEXTI
+PB3.GPIO_Label=ROTARY_B
+PB3.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_RISING_FALLING
+PB3.GPIO_PuPd=GPIO_PULLUP
+PB3.Locked=true
+PB3.Signal=GPXTI3
+PB4.GPIOParameters=GPIO_PuPd,GPIO_Label,GPIO_ModeDefaultEXTI
+PB4.GPIO_Label=ROTARY_A
+PB4.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_RISING_FALLING
+PB4.GPIO_PuPd=GPIO_PULLUP
+PB4.Locked=true
+PB4.Signal=GPXTI4
+PB5.GPIOParameters=GPIO_PuPd,GPIO_Label,GPIO_ModeDefaultEXTI
+PB5.GPIO_Label=SWITCH
+PB5.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_RISING_FALLING
+PB5.GPIO_PuPd=GPIO_PULLUP
+PB5.Locked=true
+PB5.Signal=GPXTI5
 PB7.GPIOParameters=GPIO_Label
 PB7.GPIO_Label=OLED_CS
 PB7.Locked=true
@@ -143,6 +167,12 @@ RCC.USBFreq_Value=72000000
 RCC.VCOOutput2Freq_Value=8000000
 SH.ADCx_IN0.0=ADC1_IN0,IN0
 SH.ADCx_IN0.ConfNb=1
+SH.GPXTI3.0=GPIO_EXTI3
+SH.GPXTI3.ConfNb=1
+SH.GPXTI4.0=GPIO_EXTI4
+SH.GPXTI4.ConfNb=1
+SH.GPXTI5.0=GPIO_EXTI5
+SH.GPXTI5.ConfNb=1
 SPI1.BaudRatePrescaler=SPI_BAUDRATEPRESCALER_16
 SPI1.CLKPhase=SPI_PHASE_2EDGE
 SPI1.CLKPolarity=SPI_POLARITY_HIGH

include/mxconstants.h

@@ -45,6 +45,12 @@
 #define LED_GPIO_Port GPIOC
 #define ERROR_Pin GPIO_PIN_14
 #define ERROR_GPIO_Port GPIOC
+#define ROTARY_B_Pin GPIO_PIN_3
+#define ROTARY_B_GPIO_Port GPIOB
+#define ROTARY_A_Pin GPIO_PIN_4
+#define ROTARY_A_GPIO_Port GPIOB
+#define SWITCH_Pin GPIO_PIN_5
+#define SWITCH_GPIO_Port GPIOB
 #define OLED_CS_Pin GPIO_PIN_7
 #define OLED_CS_GPIO_Port GPIOB
 #define OLED_DC_Pin GPIO_PIN_8

include/stm32f1xx_it.h

@@ -54,6 +54,9 @@ void SVC_Handler(void);
 void DebugMon_Handler(void);
 void PendSV_Handler(void);
 void SysTick_Handler(void);
+void EXTI3_IRQHandler(void);
+void EXTI4_IRQHandler(void);
+void EXTI9_5_IRQHandler(void);
 
 #ifdef __cplusplus
 }

my_src/display.c

@@ -0,0 +1,134 @@
+/*
+ * display.c
+ *
+ *  Created on: May 31, 2017
+ *      Author: wn
+ */
+
+
+#include "stm32f1xx_hal.h"
+#include "display.h"
+#include <PontCoopScheduler.h>
+
+
+
+
+volatile tDisplay display = {
+    .toggle = 0, .setModeTemperature = 0, .setModeTime = 0,
+    .timerState = IDLE,
+    .toggleModeState = 1,
+    .targetTemperature = 80, .currentTemperature = 75,
+    .targetTime = 120, .currentTime = 0,
+    .overrunTime = 0
+};
+
+
+void updateDisplay(void *handle) {
+  tDisplay *lDisplay = (tDisplay*) handle;
+  lDisplay->toggle ^= 0x01;
+  char buf[32];
+
+  sprintf(buf, "ThermometerTeaTimer");
+  LED_P6x8Str(0, 0, buf);
+
+  if (lDisplay->setModeTemperature && lDisplay->toggle) {
+    sprintf(buf, "        %3d'C", lDisplay->currentTemperature);
+  } else {
+    sprintf(buf, "%3d'C   %3d'C", lDisplay->targetTemperature, lDisplay->currentTemperature);
+  }
+  LED_P8x16Str(0, 2, buf);
+
+  if (lDisplay->setModeTime && lDisplay->toggle) {
+    sprintf(buf, "        %3ds", lDisplay->currentTime);
+  } else {
+    sprintf(buf, "%3ds    %3ds", lDisplay->targetTime, lDisplay->currentTime);
+  }
+  LED_P8x16Str(0, 4, buf);
+
+  sprintf(buf, "      %5ds", lDisplay->overrunTime);
+  LED_P8x16Str(0, 6, buf);
+}
+
+void clearSetMode(void *handle) {
+  tDisplay *lDisplay = (tDisplay*) handle;
+  lDisplay->setModeTemperature = 0;
+  lDisplay->setModeTime = 0;
+  lDisplay->toggleModeState = 1;
+}
+
+static void disableSetModeTimer() {
+  schDel(clearSetMode, (void*)&display);
+}
+
+static void reEnableSetModeTimer() {
+  schDel(clearSetMode, (void*)&display);
+  schAdd(clearSetMode, (void*)&display, 10000, 0);
+}
+
+static void toggleSetMode() {
+  switch (display.toggleModeState) {
+  default:
+  case 0:
+    disableSetModeTimer();
+    display.setModeTemperature = 0;
+    display.setModeTime = 0;
+    display.toggleModeState = 1;
+    break;
+  case 1:
+    reEnableSetModeTimer();
+    display.setModeTemperature = 1;
+    display.setModeTime = 0;
+    display.toggleModeState = 2;
+    break;
+  case 2:
+    reEnableSetModeTimer();
+    display.setModeTemperature = 0;
+    display.setModeTime = 1;
+    display.toggleModeState = 0;
+    break;
+  }
+}
+
+void displayIncValue() {
+  if (display.setModeTemperature == 1) {
+    reEnableSetModeTimer();
+    if (display.targetTemperature < 100) {
+      display.targetTemperature++;
+    }
+  }
+  if (display.setModeTime == 1) {
+    reEnableSetModeTimer();
+    if (display.targetTime < 999) {
+      display.targetTime += 10;
+    }
+  }
+}
+
+void displayDecValue() {
+  if (display.setModeTemperature == 1) {
+    reEnableSetModeTimer();
+    if (display.targetTemperature > 0) {
+      display.targetTemperature--;
+    }
+  }
+  if (display.setModeTime == 1) {
+    reEnableSetModeTimer();
+    if (display.targetTime >= 10) {
+      display.targetTime -= 10;
+    }
+  }
+}
+
+void buttonShort() {
+  if (display.setModeTemperature == 1 || display.setModeTime == 1) {
+    toggleSetMode();
+  } else if (display.timerState == IDLE) {
+    startTimer();
+  }
+}
+
+void buttonLong() {
+  if (display.timerState == IDLE) {
+    toggleSetMode();
+  }
+}

my_src/display.h

@@ -0,0 +1,35 @@
+/*
+ * display.h
+ *
+ *  Created on: May 31, 2017
+ *      Author: wn
+ */
+
+#ifndef DISPLAY_H_
+#define DISPLAY_H_
+
+
+#include "timer.h"
+#include "stm32f1xx_hal.h"
+
+
+typedef struct {
+  uint8_t toggle;
+  uint8_t setModeTemperature;
+  uint8_t setModeTime;
+  tTimerState timerState;
+  uint8_t toggleModeState;
+  uint32_t targetTemperature;
+  uint32_t currentTemperature;
+  uint32_t targetTime;
+  uint32_t currentTime;
+  uint32_t overrunTime;
+} tDisplay;
+
+void updateDisplay(void *handle);
+void displayToggleSetMode();
+void displayDecValue();
+void displayIncValue();
+
+
+#endif /* DISPLAY_H_ */

my_src/main2.c

@@ -21,83 +21,10 @@
 #include "stm32f1xx_hal.h"
 
 #include "oled.h"
+#include "timer.h"
+#include "display.h"
 
-typedef enum {
+extern tDisplay display;
-  IDLE = 0,
-  STARTED = 1,
-  RUNNING = 2,
-  OVERRUN = 3
-} tTimerState;
-
-typedef struct {
-  uint8_t toggle;
-  uint8_t setModeTemperature;
-  uint8_t setModeTime;
-  tTimerState timerState;
-  uint32_t targetTemperature;
-  uint32_t currentTemperature;
-  uint32_t targetTime;
-  uint32_t currentTime;
-  uint32_t overrunTime;
-} tDisplay;
-
-
-tDisplay display = {
-    .toggle = 0, .setModeTemperature = 0, .setModeTime = 0,
-    .timerState = IDLE,
-    .targetTemperature = 80, .currentTemperature = 75,
-    .targetTime = 180, .currentTime = 175,
-    .overrunTime = 0
-};
-
-
-void updateDisplay(void *handle) {
-  tDisplay *lDisplay = (tDisplay*) handle;
-  lDisplay->toggle ^= 0x01;
-  char buf[32];
-
-  sprintf(buf, "ThermometerTeaTimer");
-  LED_P6x8Str(0, 0, buf);
-
-  if (lDisplay->setModeTemperature && lDisplay->toggle) {
-    sprintf(buf, "        %3d'C", lDisplay->currentTemperature);
-  } else {
-    sprintf(buf, "%3d'C   %3d'C", lDisplay->targetTemperature, lDisplay->currentTemperature);
-  }
-  LED_P8x16Str(0, 2, buf);
-
-  if (lDisplay->setModeTime && lDisplay->toggle) {
-    sprintf(buf, "        %3ds", lDisplay->currentTime);
-  } else {
-    sprintf(buf, "%3ds    %3ds", lDisplay->targetTime, lDisplay->currentTime);
-  }
-  LED_P8x16Str(0, 4, buf);
-
-  sprintf(buf, "      %5ds", lDisplay->overrunTime);
-  LED_P8x16Str(0, 6, buf);
-}
-
-void secondTick(void *handle) {
-  tDisplay *lDisplay = (tDisplay*) handle;
-
-  switch (lDisplay->timerState) {
-  case STARTED:
-    lDisplay->currentTime = lDisplay->targetTime;
-    lDisplay->timerState = RUNNING;
-    break;
-  case RUNNING:
-    lDisplay->currentTime -= 1;
-    if (lDisplay->currentTime == 0) {
-      lDisplay->timerState = OVERRUN;
-    }
-    break;
-  case OVERRUN:
-    lDisplay->overrunTime += 1;
-    break;
-  default:
-    ;
-  }
-}
 
 void blink(void *handle) {
 	HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin);
@@ -105,11 +32,9 @@ void blink(void *handle) {
 
 void my_setup_1() {
 	schInit();
-	schAdd(blink, NULL, 0, 100);
+//	schAdd(blink, NULL, 0, 100);
 	schAdd(updateDisplay, &display, 0, 250);
 	schAdd(secondTick, &display, 0, 1000);
-
-	display.timerState = STARTED;
 }
 
 void my_loop() {
@@ -120,13 +45,13 @@ void HAL_SYSTICK_Callback() {
 	schUpdate();
 }
 
+
 void my_errorHandler() {
 	HAL_GPIO_WritePin(ERROR_GPIO_Port, ERROR_Pin, GPIO_PIN_SET);
 }
 
 void my_setup_2() {
   LED_Init();
-  LED_P6x8Str(0,0,"welcome to");
 
 }
 

my_src/switches.c

@@ -0,0 +1,119 @@
+/*
+ * switches.c
+ *
+ *  Created on: May 31, 2017
+ *      Author: wn
+ */
+
+
+#include "stm32f1xx_hal.h"
+#include "switches.h"
+#include "display.h"
+
+
+
+extern tDisplay display;
+volatile uint32_t lastEvent = 0;
+
+
+void switch_interrupt() {
+  static uint8_t state = 0;
+  uint32_t currentEvent = HAL_GetTick();
+
+  uint16_t line = HAL_GPIO_ReadPin(SWITCH_GPIO_Port, SWITCH_Pin);
+
+  switch (state) {
+  case 0:
+    if (line == RESET) {
+      lastEvent = currentEvent;
+      state = 1;
+    }
+    break;
+  case 1:
+    if (line != RESET) {
+      if (lastEvent + LONG_BUTTON_TIME + DEBOUNCING_DEAD_TIME < currentEvent) {
+        lastEvent = currentEvent;
+        buttonLong();
+        state = 0;
+      } else if (lastEvent + DEBOUNCING_DEAD_TIME < currentEvent) {
+        lastEvent = currentEvent;
+        buttonShort();
+        state = 0;
+      }
+    }
+    break;
+  default:
+    state = 0;
+  }
+}
+
+int myDigitalRead(GPIO_TypeDef* GPIOx, uint16_t GPIO_Pin) {
+  int16_t r = 0;
+  for (uint32_t i = 0; i < DEBOUNCING_REPEAT; i++) {
+    if (HAL_GPIO_ReadPin(GPIOx, GPIO_Pin) != RESET) {
+      r++;
+    } else {
+      r--;
+    }
+  }
+  int res = -1;
+  if (r >= (((int32_t)DEBOUNCING_REPEAT) / 2)) {
+    res = 1;
+  } else if (r <= -1 * (((int32_t)DEBOUNCING_REPEAT) / 2)) {
+    res = 0;
+  }
+  return res;
+}
+
+
+void rotary_a_interrupt() {
+  uint32_t currentEvent = HAL_GetTick();
+
+  if ((lastEvent == 0) || (lastEvent + DEBOUNCING_DEAD_TIME < currentEvent)) {
+    lastEvent = currentEvent;
+
+    int a = myDigitalRead(ROTARY_A_GPIO_Port, ROTARY_A_Pin);;
+    int b = myDigitalRead(ROTARY_B_GPIO_Port, ROTARY_B_Pin);;
+
+    if (((a != -1) && (b != -1))) {
+      if (a == b) {
+        displayIncValue();
+      } else {
+        displayDecValue();
+      }
+    }
+  }
+}
+
+void rotary_b_interrupt() {
+  uint32_t currentEvent = HAL_GetTick();
+
+  if ((lastEvent == 0) || (lastEvent + DEBOUNCING_DEAD_TIME < currentEvent)) {
+    lastEvent = currentEvent;
+
+    int a = myDigitalRead(ROTARY_A_GPIO_Port, ROTARY_A_Pin);;
+    int b = myDigitalRead(ROTARY_B_GPIO_Port, ROTARY_B_Pin);;
+
+    if (((a != -1) && (b != -1))) {
+      if (a == b) {
+        displayDecValue();
+      } else {
+        displayIncValue();
+      }
+    }
+  }
+}
+
+
+void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin) {
+  if (GPIO_Pin == GPIO_PIN_5) {
+    switch_interrupt();
+  }
+  if (GPIO_Pin == GPIO_PIN_3) {
+    rotary_a_interrupt();
+  }
+  if (GPIO_Pin == GPIO_PIN_4) {
+    rotary_b_interrupt();
+  }
+}
+

my_src/switches.h

@@ -0,0 +1,18 @@
+/*
+ * switches.h
+ *
+ *  Created on: May 31, 2017
+ *      Author: wn
+ */
+
+#ifndef SWITCHES_H_
+#define SWITCHES_H_
+
+const uint32_t DEBOUNCING_DEAD_TIME = 100;
+const uint32_t DEBOUNCING_REPEAT = 20;
+const uint32_t LONG_BUTTON_TIME = 1000;
+
+void buttonShort();
+void buttonLong();
+
+#endif /* SWITCHES_H_ */

my_src/timer.c

@@ -0,0 +1,38 @@
+/*
+ * timer.c
+ *
+ *  Created on: May 31, 2017
+ *      Author: wn
+ */
+
+#include "timer.h"
+#include "display.h"
+
+
+extern tDisplay display;
+
+void startTimer() {
+  display.timerState = STARTED;
+}
+
+void secondTick(void *handle) {
+  tDisplay *lDisplay = (tDisplay*) handle;
+
+  switch (lDisplay->timerState) {
+  case STARTED:
+    lDisplay->currentTime = lDisplay->targetTime;
+    lDisplay->timerState = RUNNING;
+    break;
+  case RUNNING:
+    lDisplay->currentTime -= 1;
+    if (lDisplay->currentTime == 0) {
+      lDisplay->timerState = OVERRUN;
+    }
+    break;
+  case OVERRUN:
+    lDisplay->overrunTime += 1;
+    break;
+  default:
+    ;
+  }
+}

my_src/timer.h

@@ -0,0 +1,21 @@
+/*
+ * timer.h
+ *
+ *  Created on: May 31, 2017
+ *      Author: wn
+ */
+
+#ifndef TIMER_H_
+#define TIMER_H_
+
+typedef enum {
+  IDLE = 0,
+  STARTED = 1,
+  RUNNING = 2,
+  OVERRUN = 3
+} tTimerState;
+
+void secondTick(void *handle);
+void startTimer();
+
+#endif /* TIMER_H_ */

src/main.c

@@ -235,12 +235,28 @@ static void MX_GPIO_Init(void)
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
   HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
+  /*Configure GPIO pins : ROTARY_B_Pin ROTARY_A_Pin SWITCH_Pin */
+  GPIO_InitStruct.Pin = ROTARY_B_Pin|ROTARY_A_Pin|SWITCH_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
   /*Configure GPIO pins : OLED_CS_Pin OLED_DC_Pin OLED_RST_Pin */
   GPIO_InitStruct.Pin = OLED_CS_Pin|OLED_DC_Pin|OLED_RST_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
+  /* EXTI interrupt init*/
+  HAL_NVIC_SetPriority(EXTI3_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI3_IRQn);
+
+  HAL_NVIC_SetPriority(EXTI4_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI4_IRQn);
+
+  HAL_NVIC_SetPriority(EXTI9_5_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);
+
 }
 
 /* USER CODE BEGIN 4 */

src/main.c-bak

@@ -231,12 +231,28 @@ static void MX_GPIO_Init(void)
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
   HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
 
+  /*Configure GPIO pins : ROTARY_B_Pin ROTARY_A_Pin SWITCH_Pin */
+  GPIO_InitStruct.Pin = ROTARY_B_Pin|ROTARY_A_Pin|SWITCH_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
   /*Configure GPIO pins : OLED_CS_Pin OLED_DC_Pin OLED_RST_Pin */
   GPIO_InitStruct.Pin = OLED_CS_Pin|OLED_DC_Pin|OLED_RST_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
   HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
+  /* EXTI interrupt init*/
+  HAL_NVIC_SetPriority(EXTI3_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI3_IRQn);
+
+  HAL_NVIC_SetPriority(EXTI4_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI4_IRQn);
+
+  HAL_NVIC_SetPriority(EXTI9_5_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);
+
 }
 
 /* USER CODE BEGIN 4 */

src/stm32f1xx_it.c

@@ -183,6 +183,48 @@ void SysTick_Handler(void)
 /* please refer to the startup file (startup_stm32f1xx.s).                    */
 /******************************************************************************/
 
+/**
+* @brief This function handles EXTI line3 interrupt.
+*/
+void EXTI3_IRQHandler(void)
+{
+  /* USER CODE BEGIN EXTI3_IRQn 0 */
+
+  /* USER CODE END EXTI3_IRQn 0 */
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_3);
+  /* USER CODE BEGIN EXTI3_IRQn 1 */
+
+  /* USER CODE END EXTI3_IRQn 1 */
+}
+
+/**
+* @brief This function handles EXTI line4 interrupt.
+*/
+void EXTI4_IRQHandler(void)
+{
+  /* USER CODE BEGIN EXTI4_IRQn 0 */
+
+  /* USER CODE END EXTI4_IRQn 0 */
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_4);
+  /* USER CODE BEGIN EXTI4_IRQn 1 */
+
+  /* USER CODE END EXTI4_IRQn 1 */
+}
+
+/**
+* @brief This function handles EXTI line[9:5] interrupts.
+*/
+void EXTI9_5_IRQHandler(void)
+{
+  /* USER CODE BEGIN EXTI9_5_IRQn 0 */
+
+  /* USER CODE END EXTI9_5_IRQn 0 */
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_5);
+  /* USER CODE BEGIN EXTI9_5_IRQn 1 */
+
+  /* USER CODE END EXTI9_5_IRQn 1 */
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */