Posted on April 04, 2018 at 12:50
Hello. I'm doing CubeMX generation, but earlier I also copied bits of firmware UART printf example. Tried with USART1, USART3, USART2. HAL_UART_Transmit(&huart2, ''Hello\n'', 6, 0xFFFF); doesn't yield output (i.e. zero reaction on serial console app; running simultaneously openned project derived from firmware-example works, without touching the serial application; UART parameters like parity etc. is the same).
Screenshots of pinout and CLOCK & USART2 configuration:
USART initialization code is:
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{GPIO_InitTypeDef GPIO_InitStruct;
if(huart->Instance==USART2) { /* USER CODE BEGIN USART2_MspInit 0 *//* USER CODE END USART2_MspInit 0 */
/* Peripheral clock enable */ __HAL_RCC_USART2_CLK_ENABLE(); /**USART2 GPIO Configuration PA3 ------> USART2_RX PD5 ------> USART2_TX */ GPIO_InitStruct.Pin = GPIO_PIN_3; GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF7_USART2; HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);GPIO_InitStruct.Pin = GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH; GPIO_InitStruct.Alternate = GPIO_AF7_USART2; HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);/* USER CODE BEGIN USART2_MspInit 1 */
/* USER CODE END USART2_MspInit 1 */
}}
void SystemClock_Config(void)
{RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct; RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;/**Configure the main internal regulator output voltage
*/ __HAL_RCC_PWR_CLK_ENABLE();__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/**Initializes the CPU, AHB and APB busses clocks
*/ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLM = 25; RCC_OscInitStruct.PLL.PLLN = 432; RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; RCC_OscInitStruct.PLL.PLLQ = 2; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { _Error_Handler(__FILE__, __LINE__); }/**Activate the Over-Drive mode
*/ if (HAL_PWREx_EnableOverDrive() != HAL_OK) { _Error_Handler(__FILE__, __LINE__); }/**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_PLLCLK; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_7) != HAL_OK)
{ _Error_Handler(__FILE__, __LINE__); }PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USART2;
PeriphClkInitStruct.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1; if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK) { _Error_Handler(__FILE__, __LINE__); }/**Configure the Systick interrupt time
*/ HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);/**Configure the Systick
*/ HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 15, 0);}/* USART2 init function */
static void MX_USART2_UART_Init(void){huart2.Instance = USART2;
huart2.Init.BaudRate = 9600; huart2.Init.WordLength = UART_WORDLENGTH_9B; huart2.Init.StopBits = UART_STOPBITS_1; huart2.Init.Parity = UART_PARITY_ODD; huart2.Init.Mode = UART_MODE_TX_RX; huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart2.Init.OverSampling = UART_OVERSAMPLING_16; huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE; huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT; if (HAL_UART_Init(&huart2) != HAL_OK) { _Error_Handler(__FILE__, __LINE__); }}
/** Configure pins as
* Analog * Input * Output * EVENT_OUT * EXTI*/static void MX_GPIO_Init(void){/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOH_CLK_ENABLE(); __HAL_RCC_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); __HAL_RCC_GPIOG_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE();}
My board is Nucleo-144 F767ZIT6. I can run the firmware UART printf example and it works. Can anyone help?
#lwip-stm32f7-nucleo-144 #printf #nucleo-144 #hal-uart #hal_uart_transmit #hal-usart
