STM32L0 HAL 串口问题

这两天在玩STM32L0,但是串口怎么调试都有问题。数据位选择8B,显示如下:

STM32L0 HAL 串口问题_第1张图片


数据位选择7B时:

STM32L0 HAL 串口问题_第2张图片


而我的输出应该是:printf("123456\n");printf("testing\n");


下面时我的程序:

//时钟初始化
void SystemClockConfig( void )
{
    RCC_OscInitTypeDef RCC_OscInitStruct;
    RCC_ClkInitTypeDef RCC_ClkInitStruct;
    RCC_PeriphCLKInitTypeDef PeriphClkInit;
	
		
	__HAL_RCC_SYSCFG_CLK_ENABLE( );
    __HAL_RCC_PWR_CLK_ENABLE( );

    __HAL_PWR_VOLTAGESCALING_CONFIG( PWR_REGULATOR_VOLTAGE_SCALE1 );
//		__HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW);
	
    RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI | RCC_OSCILLATORTYPE_LSE;//内部高速时钟8M 和 外部低速32.768K
    RCC_OscInitStruct.HSIState = RCC_HSI_ON;
    RCC_OscInitStruct.LSEState = RCC_LSE_ON; 
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
    RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
    RCC_OscInitStruct.PLL.PLLMUL = RCC_PLLMUL_4;
    RCC_OscInitStruct.PLL.PLLDIV = RCC_PLLDIV_2;
    if( HAL_RCC_OscConfig( &RCC_OscInitStruct ) != HAL_OK )
    {
        assert_param( FAIL );
    }

    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_DIV1;
    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
    if( HAL_RCC_ClockConfig( &RCC_ClkInitStruct, FLASH_LATENCY_1 ) != HAL_OK )
    {
        assert_param( FAIL );
    }

    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1 | RCC_PERIPHCLK_I2C1 | RCC_PERIPHCLK_RTC;
    PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
    PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_PCLK1;
    PeriphClkInit.RTCClockSelection = RCC_RTCCLKSOURCE_LSE;
    if( HAL_RCCEx_PeriphCLKConfig( &PeriphClkInit ) != HAL_OK )
    {
        assert_param( FAIL );
    }

    HAL_SYSTICK_Config( HAL_RCC_GetHCLKFreq( ) / 1000 );

    HAL_SYSTICK_CLKSourceConfig( SYSTICK_CLKSOURCE_HCLK );

    // SysTick_IRQn interrupt configuration
    HAL_NVIC_SetPriority( SysTick_IRQn, 0, 0 );
}
UART.C
/******************************************************************************
* Copyright 2017-2030 DaPu Co.
* FileName: 	 uart_new.c 
* Desc:
* 
* 
* Author: 	 CGH
* Date: 	 2017/10/12
* Notes: 
* 
* -----------------------------------------------------------------
* Histroy: v1.0   2017/10/12, CGH create this file
* 
******************************************************************************/
/*------------------------------- Includes ----------------------------------*/
#include "board.h"
#include "uart_new.h"
#include "gpio.h"
#include "delay.h"
/*------------------- Global Definitions and Declarations -------------------*/
/*------------------------ Constant / Macro Definitions ---------------------*/
/*------------------------- Type Declarations -------------------------------*/
/*------------------------- Function Prototype ------------------------------*/
/*------------------------- Variable Declarations ---------------------------*/
UART_HandleTypeDef husart_debug;
uint8_t RxDatabuf;
/*------------------------- Function Implement ------------------------------*/
/**
  * 函数功能: 串口硬件初始化配置
  * 输入参数: huart:串口句柄类型指针
  * 返 回 值: 无
  * 说    明: 该函数被HAL库内部调用
  */
void HAL_UART_MspInit(UART_HandleTypeDef* huart)
{

  GPIO_InitTypeDef GPIO_InitStruct;
  Gpio_t TX,RX;
  
  if(huart->Instance==DEBUG_USARTx)
  {
    /* 串口外设时钟使能 */
    DEBUG_USART_RCC_CLK_ENABLE();
    
    DEBUG_USARTx_GPIO_ClK_ENABLE();

    /* 串口外设功能GPIO配置 */
    //GpioInit( &TX, UART_TX, PIN_ALTERNATE_FCT, PIN_PUSH_PULL, PIN_PULL_UP, GPIO_AF4_USART1 );
    //GpioInit( &RX, UART_RX, PIN_INPUT, PIN_PUSH_PULL, PIN_PULL_UP, GPIO_AF4_USART1 );  
        
    GPIO_InitStruct.Pin = DEBUG_USARTx_Tx_GPIO_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_AF4_USART1;
    GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF4_USART1;
    HAL_GPIO_Init(DEBUG_USARTx_Tx_GPIO, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = DEBUG_USARTx_Rx_GPIO_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
    //GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Alternate = GPIO_AF4_USART1;
    HAL_GPIO_Init(DEBUG_USARTx_Rx_GPIO, &GPIO_InitStruct);
    
    GpioWrite(&Led2,1);
    Delay(3);
  }
}

/**
  * 函数功能: 串口硬件反初始化配置
  * 输入参数: huart:串口句柄类型指针
  * 返 回 值: 无
  * 说    明: 该函数被HAL库内部调用
  */
void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
{
  if(huart->Instance==DEBUG_USARTx)
  {
    /* 串口外设时钟禁用 */
    DEBUG_USART_RCC_CLK_DISABLE();
  
    /* 串口外设功能GPIO配置 */
    HAL_GPIO_DeInit(DEBUG_USARTx_Tx_GPIO, DEBUG_USARTx_Tx_GPIO_PIN);
    HAL_GPIO_DeInit(DEBUG_USARTx_Rx_GPIO, DEBUG_USARTx_Rx_GPIO_PIN);
    
    /* 串口中断禁用 */
    HAL_NVIC_DisableIRQ(DEBUG_USART_IRQn);
  }
}

/**
  * 函数功能: 串口参数配置.
  * 输入参数: 无
  * 返 回 值: 无
  * 说    明:无
  */
void MX_DEBUG_USART_Init(void)
{
    int ret = -1;
   
    __HAL_RCC_USART1_FORCE_RESET( );
    __HAL_RCC_USART1_RELEASE_RESET( );
    __HAL_RCC_USART1_CLK_ENABLE( );
    /* 使能串口功能引脚GPIO时钟 */
    DEBUG_USARTx_GPIO_ClK_ENABLE();

    husart_debug.Instance = DEBUG_USARTx;
    husart_debug.Init.BaudRate = DEBUG_USARTx_BAUDRATE;
    husart_debug.Init.WordLength = UART_WORDLENGTH_8B;
    husart_debug.Init.StopBits = UART_STOPBITS_1;
    husart_debug.Init.Parity = UART_PARITY_NONE;
    husart_debug.Init.Mode = UART_MODE_TX_RX;
    husart_debug.Init.HwFlowCtl = UART_HWCONTROL_NONE;
    husart_debug.Init.OverSampling = UART_OVERSAMPLING_16;
    ret = HAL_UART_Init(&husart_debug);
    if(ret != HAL_OK)
    {
        GpioWrite(&Led2,0);
    }
    else
    {
         GpioWrite(&Led3,1);
    }
    /* 串口中断起用 */

    HAL_NVIC_SetPriority( USART1_IRQn, 1, 0 );
    HAL_NVIC_EnableIRQ( USART1_IRQn );

    /* Enable the UART Data Register not empty Interrupt */
    HAL_UART_Receive_IT( &husart_debug, &RxDatabuf, 1 );
}
UART.H
/******************************************************************************
* Copyright 2017-2030 DaPu Co.
* FileName: 	 uart_new.h 
* Desc:
* 
* 
* Author: 	 CGH
* Date: 	 2017/10/12
* Notes: 
* 
* -----------------------------------------------------------------
* Histroy: v1.0   2017/10/12, CGH create this file
* 
******************************************************************************/
#ifndef	UART_NEW_H
#define	UART_NEW_H
/*------------------------------- Includes ----------------------------------*/
#include "stm32l0xx_hal.h"
#include 

/*----------------------------- Global Defines ------------------------------*/
#define DEBUG_USARTx                                 USART1
#define DEBUG_USARTx_BAUDRATE                        9600
#define DEBUG_USART_RCC_CLK_ENABLE()                 __HAL_RCC_USART1_FORCE_RESET();\\
                                                         __HAL_RCC_USART1_RELEASE_RESET();\\
                                                         __HAL_RCC_USART1_CLK_ENABLE()
#define DEBUG_USART_RCC_CLK_DISABLE()                __HAL_RCC_USART1_CLK_DISABLE()

#define DEBUG_USARTx_GPIO_ClK_ENABLE()               __HAL_RCC_GPIOA_CLK_ENABLE()
#define DEBUG_USARTx_Tx_GPIO_PIN                     GPIO_PIN_9
#define DEBUG_USARTx_Tx_GPIO                         GPIOA
#define DEBUG_USARTx_Rx_GPIO_PIN                     GPIO_PIN_10
#define DEBUG_USARTx_Rx_GPIO                         GPIOA

#define DEBUG_USART_IRQn                             USART1_IRQn

/*----------------------------- Global Typedefs -----------------------------*/
/*----------------------------- External Variables --------------------------*/
extern UART_HandleTypeDef husart_debug;

/*------------------------ Global Function Prototypes -----------------------*/
extern void MX_DEBUG_USART_Init(void);


#endif
希望各路兄台帮忙看看!!!感谢不尽!

你可能感兴趣的:(STM32L0 HAL 串口问题)