---vl6180dr

main_prog/Core/Inc/main.h

@@ -60,10 +60,13 @@ void Error_Handler(void);
 /* Private defines -----------------------------------------------------------*/
 #define GPIO_RESET_Pin GPIO_PIN_1
 #define GPIO_RESET_GPIO_Port GPIOA
+#define GPIO_RESET_EXTI_IRQn EXTI0_1_IRQn
 #define LIGHTING_EN_Pin GPIO_PIN_4
 #define LIGHTING_EN_GPIO_Port GPIOA
 #define READER_EN_Pin GPIO_PIN_5
 #define READER_EN_GPIO_Port GPIOA
+#define CS_PROXIMITY_Pin GPIO_PIN_8
+#define CS_PROXIMITY_GPIO_Port GPIOA
 #define CONTROL_PIN_Pin GPIO_PIN_4
 #define CONTROL_PIN_GPIO_Port GPIOB
 

main_prog/Core/Inc/stm32g0xx_it.h

@@ -52,6 +52,7 @@ void HardFault_Handler(void);
 void SVC_Handler(void);
 void PendSV_Handler(void);
 void SysTick_Handler(void);
+void EXTI0_1_IRQHandler(void);
 void USART1_IRQHandler(void);
 void USART2_IRQHandler(void);
 /* USER CODE BEGIN EFP */

main_prog/Core/Src/gpio.c

@@ -50,16 +50,22 @@ void MX_GPIO_Init(void)
   __HAL_RCC_GPIOB_CLK_ENABLE();
 
   /*Configure GPIO pin Output Level */
-  HAL_GPIO_WritePin(GPIOA, LIGHTING_EN_Pin|READER_EN_Pin, GPIO_PIN_RESET);
+  HAL_GPIO_WritePin(GPIOA, LIGHTING_EN_Pin|READER_EN_Pin|CS_PROXIMITY_Pin, GPIO_PIN_RESET);
 
-  /*Configure GPIO pins : PA0 PAPin */
-  GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_RESET_Pin;
+  /*Configure GPIO pin : PA0 */
+  GPIO_InitStruct.Pin = GPIO_PIN_0;
   GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
-  /*Configure GPIO pins : PAPin PAPin */
-  GPIO_InitStruct.Pin = LIGHTING_EN_Pin|READER_EN_Pin;
+  /*Configure GPIO pin : PtPin */
+  GPIO_InitStruct.Pin = GPIO_RESET_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING_FALLING;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  HAL_GPIO_Init(GPIO_RESET_GPIO_Port, &GPIO_InitStruct);
+
+  /*Configure GPIO pins : PAPin PAPin PAPin */
+  GPIO_InitStruct.Pin = LIGHTING_EN_Pin|READER_EN_Pin|CS_PROXIMITY_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
@@ -68,9 +74,13 @@ void MX_GPIO_Init(void)
   /*Configure GPIO pin : PtPin */
   GPIO_InitStruct.Pin = CONTROL_PIN_Pin;
   GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
-  GPIO_InitStruct.Pull = GPIO_PULLDOWN;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
   HAL_GPIO_Init(CONTROL_PIN_GPIO_Port, &GPIO_InitStruct);
 
+  /* EXTI interrupt init*/
+  HAL_NVIC_SetPriority(EXTI0_1_IRQn, 0, 0);
+  HAL_NVIC_EnableIRQ(EXTI0_1_IRQn);
+
 }
 
 /* USER CODE BEGIN 2 */

main_prog/Core/Src/main.cpp

@@ -112,7 +112,6 @@ int main(void) {
     MX_I2C2_Init();
     MX_TIM3_Init();
     /* USER CODE BEGIN 2 */
-    HAL_GPIO_TogglePin(LIGHTING_EN_GPIO_Port, LIGHTING_EN_Pin);
     /* Initialize the user program application. */
     AppInit();
     /* USER CODE END 2 */

main_prog/Core/Src/stm32g0xx_it.c

@@ -139,6 +139,21 @@ void SysTick_Handler(void)
 /* please refer to the startup file (startup_stm32g0xx.s).                    */
 /******************************************************************************/
 
+/**
+  * @brief This function handles EXTI line 0 and line 1 interrupts.
+  */
+void EXTI0_1_IRQHandler(void)
+{
+  /* USER CODE BEGIN EXTI0_1_IRQn 0 */
+
+  /* USER CODE END EXTI0_1_IRQn 0 */
+  HAL_GPIO_EXTI_IRQHandler(GPIO_PIN_0);
+  HAL_GPIO_EXTI_IRQHandler(GPIO_RESET_Pin);
+  /* USER CODE BEGIN EXTI0_1_IRQn 1 */
+
+  /* USER CODE END EXTI0_1_IRQn 1 */
+}
+
 /**
   * @brief This function handles USART1 global interrupt / USART1 wake-up interrupt through EXTI line 25.
   */

main_prog/Core/Src/tim.c

@@ -68,7 +68,7 @@ void MX_TIM3_Init(void)
   }
   sConfigOC.OCMode = TIM_OCMODE_PWM1;
   sConfigOC.Pulse = 10616;
-  sConfigOC.OCPolarity = TIM_OCPOLARITY_LOW;
+  sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
   sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
   if (HAL_TIM_PWM_ConfigChannel(&htim3, &sConfigOC, TIM_CHANNEL_2) != HAL_OK)
   {