C STM32 UART传输问题(阻塞和中断模式)
我对HAL库的HAL_UART_传输功能有问题。我在程序中的两个位置使用此功能:C STM32 UART传输问题(阻塞和中断模式),c,embedded,stm32,uart,nucleo,C,Embedded,Stm32,Uart,Nucleo,我对HAL库的HAL_UART_传输功能有问题。我在程序中的两个位置使用此功能: 在函数HAL_UART_RxCpltCallback中,我将中断时接收到的数据写回UART(只是一个回音)。这里一切正常 在Print_CAN_Frame函数中,我在UART上发送每个3s消息(从主函数)。之前,我在那里使用了阻塞功能(HAL_UART_传输)并正确地编程获取数据。但当我把它改为innterrupt(HAL_UART_Transmit_it)时,我得到了屏幕上的奇怪字符:。最有趣的是,这两个函数采
#包括“main.h”
#包括“main.h”
#包括“stm32f3xx_hal.h”
#包括“stm32f303xe.h”
#包括
#包括
#包括
#包括
#包括
void SystemClockConfig(void);
无效UART2_Init(无效);
无效HAL_UART_RxCpltCallback(UART_HandletTypeDef*huart);
void HAL_UART_TxCpltCallback(UART_HandleTypeDef*huart);
void ClearArray(uint8_t数组[],uint32_t大小);
无效打印(字符CanFrameName[],uint32\u t CanID,uint32\u t CanDlc,uint8\u t CANSG[]);
void parseFromUART(char-CanFrame[]);
uint8_t*convertToHex(字符*字符串);
void saveDataToFrame(CAN_MessageTypeDef canBuffer);
#定义真1
#定义FALSE 0
#定义FIFO_缓冲区g_rxFifo;
可以用消息类型定义IPC灯吗=
{
0x2214000,//ID
6,//数据链路连接器
{0x00,0x00,0x00,0x00,0x00,0x00,0x00},//TX帧
{0}//RX帧初始化
};
CAN_MessageTypeDef canUartBuffer;
无效系统时钟配置(无效);
静态void MX_GPIO_Init(void);
静态void MX_USART2_UART_Init(void);
uint8数据缓冲区[70];
uint32_t计数=0;
uint8\u t rcvd\u数据;
uint8\u t flag\u UART\u TX\u COMPLETED=FALSE;
uint8\u t flag\u UART\u RX\u COMPLETED=FALSE;
内部主(空)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_USART2_UART_Init();
HAL_UART_接收数据(&huart2,&rcvd_数据,1);
而(1)
{
打印CAN帧(“Tx”、IPC\U LIGHTHS.ID、IPC\U LIGHTHS.DLC、IPC\U LIGHTHS.CAN\U Tx);
HAL_延迟(3000);
while((flag_UART_RX_COMPLETED&flag_UART_TX_COMPLETED)=TRUE)
{
ClearArray(数据缓冲区,70);
计数=0;
flag_UART_RX_COMPLETED=假;
flag_UART_TX_COMPLETED=FALSE;
}
}
}
无效系统时钟配置(无效)
{
RCC_oscintypedef RCC_OscInitStruct={0};
RCC_ClkInitTypeDef RCC_ClkInitStruct={0};
RCC_PeriphCLKInitTypeDef PeriphClkInit={0};
/**初始化CPU、AHB和APB总线时钟
*/
RCC_OscInitStruct.OscillatorType=RCC_OscillatorType_HSE;
RCC_OscInitStruct.HSEState=RCC_HSE_旁路;
RCC_OscInitStruct.HSIState=RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState=RCC_PLL_NONE;
如果(HAL_RCC_OscConfig(&RCC_OscInitStruct)!=HAL_OK)
{
错误处理程序();
}
/**初始化CPU、AHB和APB总线时钟
*/
RCC_ClkInitStruct.ClockType=RCC_ClockType_HCLK | RCC_ClockType_SYSCLK
|RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
RCC_-ClkInitStruct.SYSCLKSource=RCC_-SYSCLKSource\u HSE;
RCC\u ClkInitStruct.AHBCLKDivider=RCC\u SYSCLK\u DIV1;
RCC_ClkInitStruct.APB1CLKDivider=RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider=RCC_HCLK_DIV1;
如果(HAL\U RCC\U时钟配置(&RCC\U ClkInitStruct,闪存\U延迟\U 0)!=HAL\U正常)
{
错误处理程序();
}
PeriphClkInit.PeriphClockSelection=RCC\u PERIPHCLK\u USART2;
PeriphClkInit.Usart2ClockSelection=RCC\u USART2CLKSOURCE\u PCLK1;
if(HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit)!=HAL_OK)
{
错误处理程序();
}
}
静态void MX_USART2_UART_Init(void)
{
huart2.Instance=USART2;
huart2.Init.BaudRate=115200;
huart2.Init.WordLength=UART_WordLength_8B;
huart2.Init.StopBits=UART\u StopBits\u 1;
huart2.Init.Parity=UART\u Parity\u NONE;
huart2.Init.Mode=UART\u Mode\u TX\u RX;
huart2.Init.HwFlowCtl=UART\u HWCONTROL\u NONE;
huart2.Init.OverSampling=UART\u OverSampling\u 16;
huart2.Init.OneBitSampling=UART\u一位\u采样\u禁用;
huart2.AdvancedInit.AdvFeatureInit=UART\u ADVFEATURE\u NO\u INIT;
if(HAL_UART_Init(&huart2)!=HAL_OK)
{
错误处理程序();
}
}
静态void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct={0};
/*GPIO端口时钟启用*/
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*配置GPIO引脚输出电平*/
HAL_GPIO_WritePin(LD2_GPIO_端口、LD2_引脚、GPIO_引脚复位);
/*配置GPIO引脚:B1\U引脚*/
GPIO_InitStruct.Pin=B1_Pin;
GPIO_InitStruct.Mode=GPIO_Mode_IT_;
GPIO_InitStruct.Pull=GPIO_NOPULL;
HAL_GPIO_Init(B1_GPIO_端口和GPIO_Init结构);
/*配置GPIO引脚:LD2\U引脚*/
GPIO_InitStruct.Pin=LD2_Pin;
GPIO_InitStruct.Mode=GPIO_Mode_OUTPUT_PP;
GPIO_InitStruct.Pull=GPIO_NOPULL;
GPIO_InitStruct.Speed=GPIO_Speed_FREQ_LOW;
HAL_GPIO_Init(LD2_GPIO_端口和GPIO_Init结构);
}
无效HAL_UART_RxCpltCallback(UART_HandletTypeDef*huart)
{
如果(rcvd_数据=='\r'){
数据缓冲区[count++]='\r';
flag_UART_RX_COMPLETED=真;
如果(HAL\U UART\U传输它(&huart2,数据缓冲区,计数)!=HAL\U OK)
{
错误处理程序();
}
}
其他的
{
数据缓冲区[count++]=rcvd\U数据;
}
HAL_UART_接收数据(&huart2,&rcvd_数据,1);
}
无效HAL_UART_TXCPLTCALLLBACK(UART_HandleTypeDef*huart)
{
flag_UART_TX_COMPLETED=真;
}
无效ClearArray(uint8\u t数组[],uint32\u t大小)
{
对于(int i=0;i#include "main.h"
#include "main.h"
#include "stm32f3xx_hal.h"
#include "stm32f303xe.h"
#include <string.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <inttypes.h>
void SystemClockConfig(void);
void UART2_Init(void);
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart);
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart);
void ClearArray(uint8_t array[], uint32_t size);
void Print_CAN_Frame(char CanFrameName[], uint32_t CanID, uint32_t CanDlc, uint8_t CANmsg[]);
void parseFromUART(char CanFrame[]);
uint8_t* convertToHex(char *string);
void saveDataToFrame(CAN_MessageTypeDef canBuffer);
#define TRUE 1
#define FALSE 0
#define FIFO_BUFFER g_rxFifo;
CAN_MessageTypeDef IPC_Ligths =
{
0x2214000, // ID
6, // DLC
{0x00,0x00,0x00,0x00,0x00,0x00}, // TX frame
{0} // RX frame initialization
};
CAN_MessageTypeDef canUartBuffer;
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART2_UART_Init(void);
uint8_t data_buffer[70];
uint32_t count = 0;
uint8_t rcvd_data;
uint8_t flag_UART_TX_COMPLETED = FALSE;
uint8_t flag_UART_RX_COMPLETED = FALSE;
int main(void)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_USART2_UART_Init();
HAL_UART_Receive_IT(&huart2, &rcvd_data, 1);
while (1)
{
Print_CAN_Frame("Tx", IPC_Ligths.ID, IPC_Ligths.DLC, IPC_Ligths.CAN_Tx);
HAL_Delay(3000);
while((flag_UART_RX_COMPLETED && flag_UART_TX_COMPLETED) == TRUE)
{
ClearArray(data_buffer, 70);
count = 0;
flag_UART_RX_COMPLETED = FALSE;
flag_UART_TX_COMPLETED = FALSE;
}
}
}
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
/** Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** 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_HSE;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
{
Error_Handler();
}
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;
PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
Error_Handler();
}
}
static void MX_USART2_UART_Init(void)
{
huart2.Instance = USART2;
huart2.Init.BaudRate = 115200;
huart2.Init.WordLength = UART_WORDLENGTH_8B;
huart2.Init.StopBits = UART_STOPBITS_1;
huart2.Init.Parity = UART_PARITY_NONE;
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();
}
}
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin : B1_Pin */
GPIO_InitStruct.Pin = B1_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : LD2_Pin */
GPIO_InitStruct.Pin = LD2_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct);
}
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
if (rcvd_data == '\r') {
data_buffer[count++] = '\r';
flag_UART_RX_COMPLETED = TRUE;
if (HAL_UART_Transmit_IT(&huart2, data_buffer, count) != HAL_OK)
{
Error_Handler();
}
}
else
{
data_buffer[count++] = rcvd_data;
}
HAL_UART_Receive_IT(&huart2, &rcvd_data, 1);
}
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
{
flag_UART_TX_COMPLETED = TRUE;
}
void ClearArray(uint8_t array[], uint32_t size)
{
for (int i = 0; i < size; ++i)
{
array[i] = 0;
}
}
void Print_CAN_Frame(char CanFrameName[], uint32_t CanID, uint32_t CanDlc, uint8_t CANmsg[])
{
char buffer[100] = {0};
sprintf(buffer,"CAN_%s| ID:0x%02X| DLC:%d| FRAME: ",CanFrameName,(unsigned int)CanID,(unsigned int)CanDlc);
for (uint8_t i = 0; i<CanDlc; i++)
{
sprintf(buffer+strlen(buffer),"%02X ",*(CANmsg+i)); // print all DATA elements one by one
}
sprintf(buffer+strlen(buffer),"\n\r"); // add in the end of each frame new line and ....
// Problem in here:
HAL_UART_Transmit_IT(&huart2, (uint8_t*)buffer, strlen(buffer));
// HAL_UART_Transmit(&huart2, (uint8_t*)buffer, strlen(buffer),HAL_MAX_DELAY);
}
void Error_Handler(void)
{
while (1)
;
}
disable_interrupts();
// change variables used by ISR ...
enable_interrupts();
disable_interrupts();
int saved_value_1 = global_variable_1;
int saved_value_2 = global_variable_2;
enable_interrupts();
// do stuff with the saved_value_* variables ...
event_add(EVENT_TYPE_TXSEND,'\r');
Clear_Array(uint_8Buffer, 70);
for (uint8_t i = 0U; i<strlen(buffer);i++)
{
uint_8Buffer[i] = (uint8_t)buffer[i];
}
if (HAL_UART_Transmit_IT(&huart2, uint_8Buffer, strlen(buffer)) != HAL_OK)
{
Error_Handler();
}