316 lines
8.8 KiB
C
316 lines
8.8 KiB
C
/* USER CODE BEGIN Header */
|
|
/**
|
|
******************************************************************************
|
|
* @file UART/UART_Printf/Src/main.c
|
|
* @author MCD Application Team
|
|
* @brief This example shows how to retarget the C library printf function
|
|
* to the UART.
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* Copyright (c) 2020 STMicroelectronics.
|
|
* All rights reserved.
|
|
*
|
|
* This software is licensed under terms that can be found in the LICENSE file
|
|
* in the root directory of this software component.
|
|
* If no LICENSE file comes with this software, it is provided AS-IS.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
/* USER CODE END Header */
|
|
/* Includes ------------------------------------------------------------------*/
|
|
#include "main.h"
|
|
|
|
/* Private includes ----------------------------------------------------------*/
|
|
/* USER CODE BEGIN Includes */
|
|
#if defined(__ICCARM__)
|
|
#include <LowLevelIOInterface.h>
|
|
#endif /* __ICCARM__ */
|
|
/* USER CODE END Includes */
|
|
|
|
/* Private typedef -----------------------------------------------------------*/
|
|
/* USER CODE BEGIN PTD */
|
|
|
|
/* USER CODE END PTD */
|
|
|
|
/* Private define ------------------------------------------------------------*/
|
|
/* USER CODE BEGIN PD */
|
|
|
|
/* USER CODE END PD */
|
|
|
|
/* Private macro -------------------------------------------------------------*/
|
|
/* USER CODE BEGIN PM */
|
|
|
|
/* USER CODE END PM */
|
|
|
|
/* Private variables ---------------------------------------------------------*/
|
|
UART_HandleTypeDef huart2;
|
|
|
|
/* USER CODE BEGIN PV */
|
|
/* USER CODE END PV */
|
|
|
|
/* Private function prototypes -----------------------------------------------*/
|
|
void SystemClock_Config(void);
|
|
static void MX_GPIO_Init(void);
|
|
static void MX_USART2_UART_Init(void);
|
|
|
|
/* USER CODE BEGIN PFP */
|
|
#if defined(__ICCARM__)
|
|
/* New definition from EWARM V9, compatible with EWARM8 */
|
|
int iar_fputc(int ch);
|
|
#define PUTCHAR_PROTOTYPE int iar_fputc(int ch)
|
|
#elif defined (__CC_ARM) || defined(__ARMCC_VERSION)
|
|
/* ARM Compiler 5/6 */
|
|
#define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
|
|
#elif defined(__GNUC__)
|
|
#define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
|
|
#endif /* __ICCARM__ */
|
|
/* USER CODE END PFP */
|
|
|
|
/* Private user code ---------------------------------------------------------*/
|
|
/* USER CODE BEGIN 0 */
|
|
|
|
/* USER CODE END 0 */
|
|
|
|
/**
|
|
* @brief The application entry point.
|
|
* @retval int
|
|
*/
|
|
int main(void)
|
|
{
|
|
/* USER CODE BEGIN 1 */
|
|
|
|
/* STM32WLxx HAL library initialization:
|
|
- Configure the Flash prefetch
|
|
- Systick timer is configured by default as source of time base, but user
|
|
can eventually implement his proper time base source (a general purpose
|
|
timer for example or other time source), keeping in mind that Time base
|
|
duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
|
|
handled in milliseconds basis.
|
|
- Set NVIC Group Priority to 4
|
|
- Low Level Initialization
|
|
*/
|
|
/* USER CODE END 1 */
|
|
|
|
/* MCU Configuration--------------------------------------------------------*/
|
|
|
|
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
|
|
HAL_Init();
|
|
|
|
/* USER CODE BEGIN Init */
|
|
|
|
/* USER CODE END Init */
|
|
|
|
/* Configure the system clock */
|
|
SystemClock_Config();
|
|
|
|
/* USER CODE BEGIN SysInit */
|
|
/* Initialize BSP Led for LED3 */
|
|
BSP_LED_Init(LED3);
|
|
/* USER CODE END SysInit */
|
|
|
|
/* Initialize all configured peripherals */
|
|
MX_GPIO_Init();
|
|
MX_USART2_UART_Init();
|
|
/* USER CODE BEGIN 2 */
|
|
|
|
/* Output a message on Hyperterminal using printf function */
|
|
printf("\n\r UART Printf Example: retarget the C library printf function to the UART\n\r");
|
|
printf("** Test finished successfully. ** \n\r");
|
|
/* USER CODE END 2 */
|
|
|
|
/* Infinite loop */
|
|
/* USER CODE BEGIN WHILE */
|
|
while (1)
|
|
{
|
|
/* USER CODE END WHILE */
|
|
|
|
/* USER CODE BEGIN 3 */
|
|
|
|
}
|
|
/* USER CODE END 3 */
|
|
}
|
|
|
|
/**
|
|
* @brief System Clock Configuration
|
|
* @retval None
|
|
*/
|
|
void SystemClock_Config(void)
|
|
{
|
|
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
|
|
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
|
|
|
|
/** Configure the main internal regulator output voltage
|
|
*/
|
|
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
|
|
|
|
/** Initializes the CPU, AHB and APB buses clocks
|
|
*/
|
|
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
|
|
RCC_OscInitStruct.MSIState = RCC_MSI_ON;
|
|
RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;
|
|
RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_8;
|
|
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
|
|
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
|
|
RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV4;
|
|
RCC_OscInitStruct.PLL.PLLN = 24;
|
|
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
|
|
RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
|
|
RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
|
|
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
/** Configure the SYSCLKSource, HCLK, PCLK1 and PCLK2 clocks dividers
|
|
*/
|
|
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK3|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_DIV1;
|
|
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
|
|
RCC_ClkInitStruct.AHBCLK3Divider = RCC_SYSCLK_DIV1;
|
|
|
|
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief USART2 Initialization Function
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void MX_USART2_UART_Init(void)
|
|
{
|
|
|
|
/* USER CODE BEGIN USART2_Init 0 */
|
|
|
|
/* USER CODE END USART2_Init 0 */
|
|
|
|
/* USER CODE BEGIN USART2_Init 1 */
|
|
|
|
/* USER CODE END USART2_Init 1 */
|
|
huart2.Instance = USART2;
|
|
huart2.Init.BaudRate = 115200;
|
|
huart2.Init.WordLength = UART_WORDLENGTH_8B;
|
|
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.Init.ClockPrescaler = UART_PRESCALER_DIV1;
|
|
huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
|
|
if (HAL_UART_Init(&huart2) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
if (HAL_UARTEx_SetTxFifoThreshold(&huart2, UART_TXFIFO_THRESHOLD_1_8) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
if (HAL_UARTEx_SetRxFifoThreshold(&huart2, UART_RXFIFO_THRESHOLD_1_8) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
if (HAL_UARTEx_DisableFifoMode(&huart2) != HAL_OK)
|
|
{
|
|
Error_Handler();
|
|
}
|
|
/* USER CODE BEGIN USART2_Init 2 */
|
|
|
|
/* USER CODE END USART2_Init 2 */
|
|
|
|
}
|
|
|
|
/**
|
|
* @brief GPIO Initialization Function
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
static void MX_GPIO_Init(void)
|
|
{
|
|
|
|
/* GPIO Ports Clock Enable */
|
|
__HAL_RCC_GPIOA_CLK_ENABLE();
|
|
|
|
}
|
|
|
|
/* USER CODE BEGIN 4 */
|
|
#if defined(__ICCARM__)
|
|
/**
|
|
* @brief Retargets the C library __write function to the IAR function iar_fputc.
|
|
* @param file: file descriptor.
|
|
* @param ptr: pointer to the buffer where the data is stored.
|
|
* @param len: length of the data to write in bytes.
|
|
* @retval length of the written data in bytes.
|
|
*/
|
|
size_t __write(int file, unsigned char const *ptr, size_t len)
|
|
{
|
|
size_t idx;
|
|
unsigned char const *pdata = ptr;
|
|
|
|
for (idx = 0; idx < len; idx++)
|
|
{
|
|
iar_fputc((int)*pdata);
|
|
pdata++;
|
|
}
|
|
return len;
|
|
}
|
|
#endif /* __ICCARM__ */
|
|
|
|
/**
|
|
* @brief Retargets the C library printf function to the USART.
|
|
* @param None
|
|
* @retval None
|
|
*/
|
|
PUTCHAR_PROTOTYPE
|
|
{
|
|
/* Place your implementation of fputc here */
|
|
/* e.g. write a character to the USART2 and Loop until the end of transmission */
|
|
HAL_UART_Transmit(&huart2, (uint8_t *)&ch, 1, 0xFFFF);
|
|
|
|
return ch;
|
|
}
|
|
|
|
/* 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 */
|
|
/* Turn LED3 on */
|
|
BSP_LED_On(LED3);
|
|
while (1);
|
|
/* USER CODE END Error_Handler_Debug */
|
|
}
|
|
|
|
#ifdef USE_FULL_ASSERT
|
|
/**
|
|
* @brief Reports the name of the source file and the source line number
|
|
* where the assert_param error has occurred.
|
|
* @param file: pointer to the source file name
|
|
* @param line: assert_param error line source number
|
|
* @retval None
|
|
*/
|
|
void assert_failed(uint8_t *file, uint32_t line)
|
|
{
|
|
/* USER CODE BEGIN 6 */
|
|
/* User can add his own implementation to report the file name and line number,
|
|
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
|
|
|
|
/* Infinite loop */
|
|
while (1)
|
|
{
|
|
}
|
|
/* USER CODE END 6 */
|
|
}
|
|
#endif /* USE_FULL_ASSERT */
|