Problems with STM32G431K8Tx

Question

Good day, I'm developing a remote control using a STM32G and I encounter some problems.For my code i need two timers:Timer1: it has a 1us overflow time and is not handled by any interruption, I just use it to count micro seconds for my delay_us function.Timer3: its configured with a interruption frequency of about 76.2kHz and it is handled by an interruption. This timer is used to modulate an output so it should only negate a variable and make an and operation between that variable and the output.For now I'm just testing whether the controller runs, and I'm just making a led blink:void setLED(uint8_t val)
{
	HAL_GPIO_WritePin(OUT_LED_GPIO_Port, OUT_LED_Pin, !val);
}
 
 while (1)
 {
	 setLED(1);
	 HAL_Delay(500);
	 setLED(0);
	 HAL_Delay(500);
 }I'm seeing some erratic behavior, with timer's 3 interruption on if I leave the interruption handler empty it works and the led blinks, but if I even make a variable assignment inside the interruption handler it stops working.The debugger hangs just before entering HAL_Delay().It also works in debug mode but not in release.Led blink:void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
 if (htim == &htim3)
 {
 
 }
}Led doesn't blink:void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
 if (htim == &htim3)
 {
	 uint8_t var = 0;
 }
}Here I leave the code and configuration:Timer3: Timer1 NVIC: GPIO: Thank you for your help!

BBori.1 · Answer

Here is the code#include "main.h" void SystemClock_Config(void);static void MX_GPIO_Init(void);static void MX_TIM1_Init(void);static void MX_TIM3_Init(void); void setLED(uint8_t val){HAL_GPIO_WritePin(OUT_LED_GPIO_Port, OUT_LED_Pin, !val);} int main(void){ HAL_Init();  SystemClock_Config();  MX_GPIO_Init(); MX_TIM1_Init(); MX_TIM3_Init();  command = 0x00; HAL_TIM_Base_Start(&htim1); HAL_TIM_Base_Start_IT(&htim3);  while (1) { setLED(1); HAL_Delay(500); setLED(0); HAL_Delay(500); } }  void SystemClock_Config(void){ RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};  /** Configure the main internal regulator output voltage  */ HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1); /** Initializes the CPU, AHB and APB busses clocks  */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /** Initializes the CPU, AHB and APB busses clocks  */ RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK) { Error_Handler(); }} /** * @brief TIM1 Initialization Function * @param None * @retval None */static void MX_TIM1_Init(void){  /* USER CODE BEGIN TIM1_Init 0 */  /* USER CODE END TIM1_Init 0 */  TIM_ClockConfigTypeDef sClockSourceConfig = {0}; TIM_MasterConfigTypeDef sMasterConfig = {0}; TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig = {0};  /* USER CODE BEGIN TIM1_Init 1 */  /* USER CODE END TIM1_Init 1 */ htim1.Instance = TIM1; htim1.Init.Prescaler = 0; htim1.Init.CounterMode = TIM_COUNTERMODE_UP; htim1.Init.Period = 15; htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim1.Init.RepetitionCounter = 0; htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE; if (HAL_TIM_Base_Init(&htim1) != HAL_OK) { Error_Handler(); } sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL; if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK) { Error_Handler(); } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterOutputTrigger2 = TIM_TRGO2_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK) { Error_Handler(); } sBreakDeadTimeConfig.BreakAFMode = TIM_BREAK_AFMODE_INPUT; sBreakDeadTimeConfig.Break2AFMode = TIM_BREAK_AFMODE_INPUT; if (HAL_TIMEx_ConfigBreakDeadTime(&htim1, &sBreakDeadTimeConfig) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN TIM1_Init 2 */  /* USER CODE END TIM1_Init 2 */ } /** * @brief TIM3 Initialization Function * @param None * @retval None */static void MX_TIM3_Init(void){  /* USER CODE BEGIN TIM3_Init 0 */  /* USER CODE END TIM3_Init 0 */  TIM_ClockConfigTypeDef sClockSourceConfig = {0}; TIM_MasterConfigTypeDef sMasterConfig = {0};  /* USER CODE BEGIN TIM3_Init 1 */  /* USER CODE END TIM3_Init 1 */ htim3.Instance = TIM3; htim3.Init.Prescaler = 0; htim3.Init.CounterMode = TIM_COUNTERMODE_UP; htim3.Init.Period = 210; htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE; if (HAL_TIM_Base_Init(&htim3) != HAL_OK) { Error_Handler(); } sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL; if (HAL_TIM_ConfigClockSource(&htim3, &sClockSourceConfig) != HAL_OK) { Error_Handler(); } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN TIM3_Init 2 */  /* USER CODE END TIM3_Init 2 */ } /** * @brief GPIO Initialization Function * @param None * @retval None */static void MX_GPIO_Init(void){ GPIO_InitTypeDef GPIO_InitStruct = {0};  /* GPIO Ports Clock Enable */ __HAL_RCC_GPIOF_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE();  /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOF, GPIO_PIN_0|GPIO_PIN_1, GPIO_PIN_RESET);  /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7  |GPIO_PIN_11|GPIO_PIN_15, GPIO_PIN_RESET);  /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(OUT_LED_GPIO_Port, OUT_LED_Pin, GPIO_PIN_SET);  /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOB, GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6  |GPIO_PIN_7|GPIO_PIN_8, GPIO_PIN_RESET);  /*Configure GPIO pins : PF0 PF1 */ GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);  /*Configure GPIO pins : IN_BT4_Pin IN_BT2_Pin IN_BT1_Pin IN_BT3_Pin  IN_BT5_Pin IN_BT7_Pin IN_BT8_Pin IN_BT6_Pin */ GPIO_InitStruct.Pin = IN_BT4_Pin|IN_BT2_Pin|IN_BT1_Pin|IN_BT3_Pin  |IN_BT5_Pin|IN_BT7_Pin|IN_BT8_Pin|IN_BT6_Pin; GPIO_InitStruct.Mode = GPIO_MODE_IT_RISING; GPIO_InitStruct.Pull = GPIO_PULLDOWN; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);  /*Configure GPIO pins : PA4 PA5 PA6 PA7  PA11 PA15 */ GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7  |GPIO_PIN_11|GPIO_PIN_15; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);  /*Configure GPIO pins : OUT_LED_Pin PB4 */ GPIO_InitStruct.Pin = OUT_LED_Pin|GPIO_PIN_4; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_PULLDOWN; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);  /*Configure GPIO pins : PB3 PB5 PB6 PB7  PB8 */ GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7  |GPIO_PIN_8; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);  /* EXTI interrupt init*/ HAL_NVIC_SetPriority(EXTI0_IRQn, 2, 0); HAL_NVIC_EnableIRQ(EXTI0_IRQn);  HAL_NVIC_SetPriority(EXTI1_IRQn, 2, 0); HAL_NVIC_EnableIRQ(EXTI1_IRQn);  HAL_NVIC_SetPriority(EXTI2_IRQn, 2, 0); HAL_NVIC_EnableIRQ(EXTI2_IRQn);  HAL_NVIC_SetPriority(EXTI3_IRQn, 2, 0); HAL_NVIC_EnableIRQ(EXTI3_IRQn);  HAL_NVIC_SetPriority(EXTI9_5_IRQn, 2, 0); HAL_NVIC_EnableIRQ(EXTI9_5_IRQn);  HAL_NVIC_SetPriority(EXTI15_10_IRQn, 2, 0); HAL_NVIC_EnableIRQ(EXTI15_10_IRQn); } /* USER CODE BEGIN 4 */   void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim){ if (htim == &htim3) {  }} void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin){switch(GPIO_Pin){case IN_BT1_Pin:command = 0xAA;break;case IN_BT2_Pin:command = 0xAA;break;case IN_BT3_Pin:command = 0xAA;break;case IN_BT4_Pin:command = 0xAA;break;case IN_BT5_Pin:command = 0xAA;break;case IN_BT6_Pin:command = 0xAA;break;case IN_BT7_Pin:command = 0xAA;break;case IN_BT8_Pin:command = 0xAA;break;default:command = 0x00;}}/* USER CODE END 4 */ /** * @brief This function is executed in case of error occurrence. * @retval None */void Error_Handler(void){ /* USER CODE BEGIN Error_Handler_Debug */ /* User can add his own implementation to report the HAL error return state */  /* USER CODE END Error_Handler_Debug */}

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