Hi.
I have a diy board with STM32F030F4P6 Atollic TrueSTUDIO 9.3.0 and STM32CubeMX 5.2.1.
I want to use it 's serial port in order to print (for debugging), like in Arduino we use the Serial.print().
I 've followed a few things I found on the internet but without success.
I use an FTDI board whose:
- RX is connected to the TX(pin PA2) of the MCU.
- TX is connected to the RX(pin PA3) of the MCU.
So, I made a project with STM32CubeMX, where I configured pins PA2 as USART1_TX and PA3 as USART1_RX. Here is the usart.c file:
/**
******************************************************************************
* File Name : USART.c
* Description : This file provides code for the configuration
* of the USART instances.
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "usart.h"
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
UART_HandleTypeDef huart1;
/* USART1 init function */
void MX_USART1_UART_Init(void)
{
huart1.Instance = USART1;
huart1.Init.BaudRate = 9600;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity = UART_PARITY_NONE;
huart1.Init.Mode = UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
huart1.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
huart1.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
if (HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
}
void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
if(uartHandle->Instance==USART1)
{
/* USER CODE BEGIN USART1_MspInit 0 */
/* USER CODE END USART1_MspInit 0 */
/* USART1 clock enable */
__HAL_RCC_USART1_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
/**USART1 GPIO Configuration
PA2 ------> USART1_TX
PA3 ------> USART1_RX
*/
GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF1_USART1;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* USART1 interrupt Init */
HAL_NVIC_SetPriority(USART1_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(USART1_IRQn);
/* USER CODE BEGIN USART1_MspInit 1 */
/* USER CODE END USART1_MspInit 1 */
}
}
void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
{
if(uartHandle->Instance==USART1)
{
/* USER CODE BEGIN USART1_MspDeInit 0 */
/* USER CODE END USART1_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_USART1_CLK_DISABLE();
/**USART1 GPIO Configuration
PA2 ------> USART1_TX
PA3 ------> USART1_RX
*/
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_2|GPIO_PIN_3);
/* USART1 interrupt Deinit */
HAL_NVIC_DisableIRQ(USART1_IRQn);
/* USER CODE BEGIN USART1_MspDeInit 1 */
/* USER CODE END USART1_MspDeInit 1 */
}
}
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
And this is the code in main.c while loop:
/* USER CODE BEGIN WHILE */
while (1)
{
//print out static text
int len=sprintf(buffer,"Hello\r\n"); //sprintf will return the length of 'buffer'
HAL_UART_Transmit(&huart1, buffer, len, 1000);
//print out variable
len=sprintf(buffer,"This is i:%i\r\n",counter); //sprintf will return the length of 'buffer'
HAL_UART_Transmit(&huart1, buffer, len, 1000);
counter++;
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
I used the Arduino IDE 's Serial Monitor, (I found the correct port from Devices Manager) but I saw no result being printed.
When I enter a character and press 'Send' an LED blinks on the FTDI board, so I guess...something happens.
I also tried Putty terminal and also nothing was being printed.
Any help is welcome.
