#4209: STM32H743ZI Nucleo Consle support not working without workaround
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Reporter: rmueller | Owner: Sebastian Huber
Type: defect | Status: assigned
Priority: normal | Milestone: 6.1
Component: admin | Version: 6
Severity: normal | Keywords: stm32
Blocked By: | Blocking:
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I think here is still some issue with the HUART3 console support, at least
for the STM32H743ZI-Nucleo board.
I solves the issue by calling some hardware initializaton functions and
override void HAL_UART_MspInit(UART_HandleTypeDef* huart) like this:
{{{
#include "hardware_init.h"
#include <stm32h7xx_hal_rcc.h>
#include <stdio.h>
void hardware_init() {
MX_USART3_UART_Init(115200);
}
/**
* ST-LINK UART3
* CN5 pins on board
*/
UART_HandleTypeDef huart3;
GPIO_InitTypeDef gpio_uart_init_struct;
void MX_USART3_UART_Init(uint32_t baudRate)
{
__HAL_RCC_USART3_CONFIG(RCC_USART3CLKSOURCE_HSI);
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_USART3_CLK_ENABLE();
int result;
huart3.Instance = USART3;
huart3.Init.BaudRate = baudRate;
huart3.Init.WordLength = UART_WORDLENGTH_8B;
huart3.Init.StopBits = UART_STOPBITS_1;
huart3.Init.Parity = UART_PARITY_NONE;
huart3.Init.Mode = UART_MODE_TX_RX;
huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart3.Init.OverSampling = UART_OVERSAMPLING_16;
huart3.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart3.Init.ClockPrescaler = UART_PRESCALER_DIV1;
//huart3.Init.FIFOMode = UART_FIFOMODE_DISABLE;
//huart3.Init.TXFIFOThreshold = UART_TXFIFO_THRESHOLD_1_8;
//huart3.Init.RXFIFOThreshold = UART_RXFIFO_THRESHOLD_1_8;
huart3.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
// we can't do error handling (simple print out first) here
because UART3 is our print interface
result = HAL_UART_Init(&huart3);
if(result == HAL_OK) {
printf("\rUART3 configured successfully!\r\n");
}
}
// Will be called by HAL_UART_Init
void HAL_UART_MspInit(UART_HandleTypeDef* huart) {
/*Configure GPIO pins : PD8 PD9 */
gpio_uart_init_struct.Pin = GPIO_PIN_8|GPIO_PIN_9;
gpio_uart_init_struct.Mode = GPIO_MODE_AF_PP;
gpio_uart_init_struct.Pull = GPIO_NOPULL;
gpio_uart_init_struct.Speed = GPIO_SPEED_FREQ_LOW;
gpio_uart_init_struct.Alternate = GPIO_AF7_USART3;
HAL_GPIO_Init(GPIOD, &gpio_uart_init_struct);
}
}}}
I then call hardware_init() from my main application and after that,
printf is working properly. Maybe the problem is also related to using the
Nucleo board?
Kind Regards
Robin
--
Ticket URL: <http://devel.rtems.org/ticket/4209>
RTEMS Project <http://www.rtems.org/>
RTEMS Project
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