Posted on July 14, 2017 at 07:58I just bought STM32 MCU Discovery Kits and want to set PE3, PE4, PE5, PE8 as GPIO output.
I made the codes via STM32CubeMX and downloaded it to the board successfully.
But I found PE4 adn PE5 configure fail, while PE3 and PE8 work well.
Hope anyone can help me, thanks in advance.
The codes is shown below:
int main(void){ HAL_Init(); SystemClock_Config(); MX_GPIO_Init(); while (1) { HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_8); HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_3); HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_4); HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_5); HAL_Delay(1000); }}
void SystemClock_Config(void){RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct; RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.HSICalibrationValue = 16; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } 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(); } HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000); HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK); HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);}void MX_GPIO_Init(void){GPIO_InitTypeDef GPIO_InitStruct;
__HAL_RCC_GPIOE_CLK_ENABLE(); HAL_GPIO_WritePin(GPIOE, GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5 | GPIO_PIN_8, GPIO_PIN_RESET); GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5|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(GPIOE, &GPIO_InitStruct);}
