• STM32CUBEMX_DMA串口空闲中断接收+接收发送缓冲区

    STM32CUBEMX_DMA串口空闲中断接收+接收发送缓冲区

    前言：
    我了解的串口接收指令的方式有：在这里插入图片描述

    1、接收数据中断+特定帧尾
    2、接收数据中断+空闲中断
    3、DMA接收+空闲中断
    我最推荐第三种，尤其是数据量比较大且频繁的时候

    串口配置
    在这里插入图片描述

    在这里插入图片描述
    在这里插入图片描述
    my_it.c

    #include "my_it.h"
#include "mymain.h"
#include "main.h"
#include "gpio.h"
#include "tim.h"
#include "usart.h"
#include "uart_lcd.h"


void MY_UART_IDLECallback(UART_HandleTypeDef *huart)//自定义的串口超时中断回调函数
{
	HAL_UART_DMAStop(&huart3);															//暂停DMA
	unsigned char data_length  = BUFFER_SIZE - __HAL_DMA_GET_COUNTER(&hdma_usart3_rx);	//计算此帧数据长度
	if(data_length == RBUFF_UNIT)
	{
		unsigned char recv_data[10] = {0};
		memcpy(recv_data,receive_buff,RBUFF_UNIT);
		RxDataBufCheck(recv_data,RBUFF_UNIT);
	}
	//HAL_UART_Transmit_DMA(&huart3,receive_buff,data_length);							//回环测试，接收到什么返回什么
	HAL_UART_Receive_DMA(&huart3, (unsigned char*)receive_buff, BUFFER_SIZE);			//继续开启接收
	data_length = 0;
}

void MY_UART_IRQHandler(UART_HandleTypeDef *huart)//此函数调用放在void USART3_IRQHandler(void)内执行
{
	if(USART3 == huart->Instance)
	{
		if(RESET != __HAL_UART_GET_FLAG(&huart3, UART_FLAG_IDLE))	//判断是否是空闲中断
		{
			__HAL_UART_CLEAR_IDLEFLAG(&huart3);						//清除空闲中断
			MY_UART_IDLECallback(huart);							//空闲中断处理函数
		}
	}
}

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32
    • 33
    • 34
    • 35

    my_it.h

    #ifndef __MY_IT_H
#define __MY_IT_H
#include "log.h"
#include "usart.h"

extern DMA_HandleTypeDef hdma_usart3_rx;

void MY_UART_IRQHandler(UART_HandleTypeDef *huart);
void MY_UART_IDLECallback(UART_HandleTypeDef *huart);

#endif



    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13

    uart_lcd.c

    #include "uart_lcd.h"
#include "sensor.h"
#include "dev_control.h"
#include 

unsigned char  UART_RxDataBuf[R_NUM][RBUFF_UNIT];           //接收缓冲区
unsigned char *UART_RxDataInPtr;
unsigned char *UART_RxDataOutPtr;
unsigned char *UART_RxDataEndPtr;

unsigned char  UART_TxDataBuf[T_NUM][TBUFF_UNIT];           //发送缓冲区
unsigned char *UART_TxDataInPtr;
unsigned char *UART_TxDataOutPtr;
unsigned char *UART_TxDataEndPtr;

unsigned char receive_buff[BUFFER_SIZE];					//串口接收临时缓存


//发送数据实例
#include "uart_lcd.h"
#include "sensor.h"
#include "dev_control.h"
#include 

unsigned char  UART_RxDataBuf[R_NUM][RBUFF_UNIT];           //接收缓冲区
unsigned char *UART_RxDataInPtr;
unsigned char *UART_RxDataOutPtr;
unsigned char *UART_RxDataEndPtr;

unsigned char  UART_TxDataBuf[T_NUM][TBUFF_UNIT];           //发送缓冲区
unsigned char *UART_TxDataInPtr;
unsigned char *UART_TxDataOutPtr;
unsigned char *UART_TxDataEndPtr;

unsigned char receive_buff[BUFFER_SIZE];					//串口接收临时缓存


//发送数据实例
unsigned char lcd_send_data[] = {0xFF,0x55,0x00,0x04,0x00,0x00,0x00,0x00,0xC1,0xBB};

//大小端转化
unsigned short swapEndian16(unsigned short value) 
{
    return ((value & 0xFF00) >> 8) | ((value & 0x00FF) << 8);
}

unsigned int swapEndian32(unsigned int value) 
{
	return ((value & 0xFF000000) >> 24) |
				 ((value & 0x00FF0000) >> 8) |
				 ((value & 0x0000FF00) << 8) |
				 ((value & 0x000000FF) << 24);
}

/* Table of CRC values for high order byte */
const uint8_t crctablehi[] = {
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
    0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,
    0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81,
    0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,
    0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
    0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,
    0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
    0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
    0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,
    0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
    0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
    0x40
};
/* Table of CRC values for low order byte */
const uint8_t crctablelo[] = {
    0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7, 0x05, 0xC5, 0xC4,
    0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,
    0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD,
    0x1D, 0x1C, 0xDC, 0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
    0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32, 0x36, 0xF6, 0xF7,
    0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,
    0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE,
    0x2E, 0x2F, 0xEF, 0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,
    0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1, 0x63, 0xA3, 0xA2,
    0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
    0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB,
    0x7B, 0x7A, 0xBA, 0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
    0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0, 0x50, 0x90, 0x91,
    0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,
    0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88,
    0x48, 0x49, 0x89, 0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
    0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83, 0x41, 0x81, 0x80,
    0x40
};

unsigned short crc16Modbus(unsigned char *ptr, unsigned short len)
{
	unsigned char crchi = 0xff;
	unsigned char crclo = 0xff;
	unsigned short index;
	while(len--)
	{
		index = crclo ^ *ptr++;
		crclo = crchi ^ crctablehi[index];
		crchi = crctablelo[index];
	}
	return (crchi | crclo << 8);//(crchi << 8 | crclo)高低字节互换
	//return (crchi << 8 | crclo);
}

void uartLcdInit(void)
{
	UART_RxDataInPtr = UART_RxDataBuf[0];
	UART_RxDataOutPtr = UART_RxDataInPtr;
	UART_RxDataEndPtr = UART_RxDataBuf[R_NUM-1];

	UART_TxDataInPtr = UART_TxDataBuf[0];
	UART_TxDataOutPtr = UART_TxDataInPtr;
	UART_TxDataEndPtr = UART_TxDataBuf[T_NUM-1];

	__HAL_UART_ENABLE_IT(&huart3, UART_IT_IDLE);//使能空闲中断
	HAL_UART_Receive_DMA(&huart3, (unsigned char*)receive_buff, BUFFER_SIZE);//开始DMA接收串口数据
}

void uartLcdTask(void)//50ms调用一次，来定时处理缓存数据
{
	if(UART_RxDataOutPtr != UART_RxDataInPtr)//if成立说明缓冲区有数据了
	{
		//解析处理数据
		unsigned char recv_data[RBUFF_UNIT] = {0};
		memcpy(recv_data,UART_RxDataOutPtr,RBUFF_UNIT);
		RxDataBufAnalyze(recv_data);

		UART_RxDataOutPtr += RBUFF_UNIT;             //指针下移
		if(UART_RxDataOutPtr == UART_RxDataEndPtr)   //指针移动到缓冲区的尾部
		{
			UART_RxDataOutPtr = UART_RxDataBuf[0];   //指针归为到缓冲区开头
		}
	}
	if(UART_TxDataOutPtr != UART_TxDataInPtr)//if成立说明了发送缓冲区有数据了
	{
		UARTLCD_debug("TxData:%x,%x,%x,%x,%x,%x,%x,%x,%x,%x\r\n",
		UART_TxDataOutPtr[0],UART_TxDataOutPtr[1],UART_TxDataOutPtr[2],UART_TxDataOutPtr[3],UART_TxDataOutPtr[4],
		UART_TxDataOutPtr[5],UART_TxDataOutPtr[6],UART_TxDataOutPtr[7],UART_TxDataOutPtr[8],UART_TxDataOutPtr[9]);
		HAL_UART_Transmit_DMA(&huart3,UART_TxDataOutPtr,TBUFF_UNIT);	//发送数据
		
		UART_TxDataOutPtr += TBUFF_UNIT;                      			//指针下移
		if(UART_TxDataOutPtr == UART_TxDataEndPtr)              		//指针移动到了缓冲区的尾巴
		{
			UART_TxDataOutPtr = UART_TxDataBuf[0];            			//指针归为到缓冲区开头
		}
	}
}

void uartLcdMainUpdate(unsigned int num)	//在需要与串口屏发送数据的地方调用
{
	TxDataBufSend(UARTLCD_COMMAND_INIT_CHECK,num);
}

void TxDataBufAdd(unsigned char *data)
{
	memcpy(UART_TxDataInPtr,data,TBUFF_UNIT);      					//拷贝数据到发送缓冲区
	UART_TxDataInPtr += TBUFF_UNIT;                 				//指针下移
	if(UART_TxDataInPtr == UART_TxDataOutPtr)
	{
		UARTLCD_error("UART_TxDataBuf exceed !!!\r\n");				//缓存满了报错提示
	}
	if(UART_TxDataInPtr == UART_TxDataEndPtr)      					//指针移动到缓冲区的尾部
	{
		UART_TxDataInPtr = UART_TxDataBuf[0];    					//指针归为到缓冲区开头
	}
}

void RxDataBufAdd(unsigned char *data)
{
	memcpy(UART_RxDataInPtr,data,RBUFF_UNIT);  						//拷贝数据到接收缓冲区
	UART_RxDataInPtr += RBUFF_UNIT;                     			//指针下移
	if(UART_RxDataInPtr == UART_RxDataOutPtr)           			//缓存满了报错提示
	{
		UARTLCD_error("UART_RxDataBuf exceed !!!\r\n");
	}
	if(UART_RxDataInPtr == UART_RxDataEndPtr)           			//指针移动到缓冲区的尾部
	{
		UART_RxDataInPtr = UART_RxDataBuf[0];           			//指针归为到缓冲区开头
	}
//	for(int i = 0;i<10;i++)
//	{
//		for(int j = 0;j<10;j++)
//		{
//			Debug_printf("%x,",UART_RxDataBuf[i][j]);
//		}
//		Debug_printf("\r\n");
//	}
//	Debug_printf("\r\n");
}


void TxDataBufPack(unsigned char command,unsigned int num)	//发送串口数据封包
{
	uartLcdDataFrame_t * send_data = (uartLcdDataFrame_t *)lcd_send_data;
	
	send_data->bodyData.commandData = command;
	send_data->bodyData.controlData = swapEndian32(num);
	
	unsigned char bodyData[RBUFF_UNIT-2] = {0};
	memcpy(bodyData,&send_data->bodyData,RBUFF_UNIT-2);
	unsigned short send_crc = crc16Modbus(bodyData,RBUFF_UNIT-2);
	
	send_data->crcData = send_crc;
	
	TxDataBufAdd((unsigned char *)send_data);
}

void TxDataBufSend(unsigned char command,unsigned int num)	//直接发送数据，不经过缓存
{
	uartLcdDataFrame_t * send_data = (uartLcdDataFrame_t *)lcd_send_data;
	
	send_data->bodyData.commandData = command;
	send_data->bodyData.controlData = swapEndian32(num);
	
	unsigned char bodyData[RBUFF_UNIT-2] = {0};
	memcpy(bodyData,&send_data->bodyData,RBUFF_UNIT-2);
	unsigned short send_crc = crc16Modbus(bodyData,RBUFF_UNIT-2);
	
	send_data->crcData = send_crc;
	
	unsigned char send_data_[TBUFF_UNIT] = {0};
	memcpy(send_data_,send_data,TBUFF_UNIT);
	UARTLCD_debug("TxDataBufSend:%x,%x,%x,%x,%x,%x,%x,%x,%x,%x\r\n",
	send_data_[0],send_data_[1],send_data_[2],send_data_[3],send_data_[4],
	send_data_[5],send_data_[6],send_data_[7],send_data_[8],send_data_[9]);
	
	HAL_UART_Transmit_DMA(&huart3,(unsigned char *)lcd_send_data,TBUFF_UNIT);
	HAL_Delay(2);
}

void RxDataBufCheck(unsigned char *data,unsigned char length)	//校验接收到的串口数据是不是一帧数据
{
	if(length != RBUFF_UNIT) return;
	uartLcdDataFrame_t * recv_data = (uartLcdDataFrame_t *)data;

	if(recv_data->bodyData.headData == 0x55FF)//校验头
	{
		unsigned char bodyData[RBUFF_UNIT-2] = {0};
		memcpy(bodyData,&recv_data->bodyData,RBUFF_UNIT-2);

		unsigned short recv_crc = crc16Modbus(bodyData,RBUFF_UNIT-2);
		
		if(recv_crc == recv_data->crcData)//校验CRC
		{
//			Debug_printf("RxDataBufCheck recv data:%x,%x,%x,%x,%x\r\n",
//			recv_data->bodyData.headData,recv_data->bodyData.commandData,recv_data->bodyData.lengthData,
//			recv_data->bodyData.controlData,recv_data->crcData);
			RxDataBufAdd(data);//加入环形缓冲区
		}
	}
}

void RxDataBufAnalyze(unsigned char *data)	//处理串口指令
{
	UARTLCD_debug("RxDataBufAnalyze:%x,%x,%x,%x,%x,%x,%x,%x,%x,%x\r\n",data[0],data[1],data[2],data[3],data[4],data[5],data[6],data[7],data[8],data[9]);
	uartLcdDataFrame_t * recv_data = (uartLcdDataFrame_t *)data;
	
	switch(recv_data->bodyData.commandData)
	{
		case UARTLCD_COMMAND_INIT_CHECK:
			break;
		case UARTLCD_COMMAND_FLOW_LEVEL:
			break;
		case UARTLCD_COMMAND_SMOKE_CLEAN:
			break;
		case UARTLCD_COMMAND_AIR_CONSUME:
			break;
		case UARTLCD_COMMAND_PRESSURE_NOW:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_PRESSURE_TARGET:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_PRESSURE_REDUCE:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_PRESSURE_ADD:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_FLOW_NOW:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_FLOW_TARGET:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_FLOW_REDUCE:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_FLOW_ADD:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_PRESSURE_MODE:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_HEAT_STATE:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_AIR_START:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_AIR_INPUT_STATE:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_BUZZER_LEVEL:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_LANGUAGE:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_MESSAGE_WARNING:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_LIGHT_WARNING:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_USB_CHANGE:
			devBuzzerSetNum(1);
			break;
		case UARTLCD_COMMAND_VERSION_MESSGAE:
			devBuzzerSetNum(1);
			break;			
		default:
			break;
	}
}	

    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32
    • 33
    • 34
    • 35
    • 36
    • 37
    • 38
    • 39
    • 40
    • 41
    • 42
    • 43
    • 44
    • 45
    • 46
    • 47
    • 48
    • 49
    • 50
    • 51
    • 52
    • 53
    • 54
    • 55
    • 56
    • 57
    • 58
    • 59
    • 60
    • 61
    • 62
    • 63
    • 64
    • 65
    • 66
    • 67
    • 68
    • 69
    • 70
    • 71
    • 72
    • 73
    • 74
    • 75
    • 76
    • 77
    • 78
    • 79
    • 80
    • 81
    • 82
    • 83
    • 84
    • 85
    • 86
    • 87
    • 88
    • 89
    • 90
    • 91
    • 92
    • 93
    • 94
    • 95
    • 96
    • 97
    • 98
    • 99
    • 100
    • 101
    • 102
    • 103
    • 104
    • 105
    • 106
    • 107
    • 108
    • 109
    • 110
    • 111
    • 112
    • 113
    • 114
    • 115
    • 116
    • 117
    • 118
    • 119
    • 120
    • 121
    • 122
    • 123
    • 124
    • 125
    • 126
    • 127
    • 128
    • 129
    • 130
    • 131
    • 132
    • 133
    • 134
    • 135
    • 136
    • 137
    • 138
    • 139
    • 140
    • 141
    • 142
    • 143
    • 144
    • 145
    • 146
    • 147
    • 148
    • 149
    • 150
    • 151
    • 152
    • 153
    • 154
    • 155
    • 156
    • 157
    • 158
    • 159
    • 160
    • 161
    • 162
    • 163
    • 164
    • 165
    • 166
    • 167
    • 168
    • 169
    • 170
    • 171
    • 172
    • 173
    • 174
    • 175
    • 176
    • 177
    • 178
    • 179
    • 180
    • 181
    • 182
    • 183
    • 184
    • 185
    • 186
    • 187
    • 188
    • 189
    • 190
    • 191
    • 192
    • 193
    • 194
    • 195
    • 196
    • 197
    • 198
    • 199
    • 200
    • 201
    • 202
    • 203
    • 204
    • 205
    • 206
    • 207
    • 208
    • 209
    • 210
    • 211
    • 212
    • 213
    • 214
    • 215
    • 216
    • 217
    • 218
    • 219
    • 220
    • 221
    • 222
    • 223
    • 224
    • 225
    • 226
    • 227
    • 228
    • 229
    • 230
    • 231
    • 232
    • 233
    • 234
    • 235
    • 236
    • 237
    • 238
    • 239
    • 240
    • 241
    • 242
    • 243
    • 244
    • 245
    • 246
    • 247
    • 248
    • 249
    • 250
    • 251
    • 252
    • 253
    • 254
    • 255
    • 256
    • 257
    • 258
    • 259
    • 260
    • 261
    • 262
    • 263
    • 264
    • 265
    • 266
    • 267
    • 268
    • 269
    • 270
    • 271
    • 272
    • 273
    • 274
    • 275
    • 276
    • 277
    • 278
    • 279
    • 280
    • 281
    • 282
    • 283
    • 284
    • 285
    • 286
    • 287
    • 288
    • 289
    • 290
    • 291
    • 292
    • 293
    • 294
    • 295
    • 296
    • 297
    • 298
    • 299
    • 300
    • 301
    • 302
    • 303
    • 304
    • 305
    • 306
    • 307
    • 308
    • 309
    • 310
    • 311
    • 312
    • 313
    • 314
    • 315
    • 316
    • 317
    • 318
    • 319
    • 320
    • 321
    • 322
    • 323
    • 324
    • 325
    • 326
    • 327
    • 328
    • 329
    • 330
    • 331
    • 332
    • 333

    uart_lcd.h

    #ifndef __UART_LCD_H
#define __UART_LCD_H
#include "main.h"
#include "log.h"
#include "usart.h"
#include "eeprom.h"
#include 

#define UARTLCD_TASK_PERIOD  2 //

#define UARTLCD_LOG_EN 0
#if UARTLCD_LOG_EN
	#define UARTLCD_printf(format, ...) 		printf(RTT_CTRL_TEXT_WHITE format , ##__VA_ARGS__)//"\r\n"
	#define UARTLCD_info(format, ...)   		printf(RTT_CTRL_TEXT_GREEN"[uartlcd]info:" format , ##__VA_ARGS__)
	#define UARTLCD_debug(format, ...)  		printf(RTT_CTRL_TEXT_WHITE"[uartlcd]debug:" format , ##__VA_ARGS__)
	#define UARTLCD_warning(format, ...)  	printf(RTT_CTRL_TEXT_YELLOW"[uartlcd]warning:" format , ##__VA_ARGS__)
	#define UARTLCD_error(format, ...)  		printf(RTT_CTRL_TEXT_RED"[uartlcd]error:" format ,##__VA_ARGS__)
#else
	#define UARTLCD_printf(format, ...)
	#define UARTLCD_info(format, ...)
	#define UARTLCD_debug(format, ...)
	#define UARTLCD_warning(format, ...)
	#define UARTLCD_error(format, ...)
#endif

#define  R_NUM               20     //缓冲区的个数（可以缓存几帧数据）
#define  RBUFF_UNIT          10   	//缓冲区一帧数据的长度

#define  T_NUM               20     //缓冲区的个数（可以缓存几帧数据）
#define  TBUFF_UNIT          10   	//缓冲区一帧数据的长度

extern unsigned char  UART_RxDataBuf[R_NUM][RBUFF_UNIT];           //接收缓存区
extern unsigned char *UART_RxDataInPtr;                            //接收缓存区存放数据的位置
extern unsigned char *UART_RxDataOutPtr;                           //接收缓存区读取数据的位置
extern unsigned char *UART_RxDataEndPtr;                           //接收缓存区结束的位置

extern unsigned char  UART_TxDataBuf[T_NUM][TBUFF_UNIT];           //发送缓存区
extern unsigned char *UART_TxDataInPtr;                            //发送缓存区存放数据的位置
extern unsigned char *UART_TxDataOutPtr;                           //发送缓存区读取数据的位置
extern unsigned char *UART_TxDataEndPtr;                           //发送缓存区结束的位置

#define BUFFER_SIZE  100											//串口接收数据的临时缓存区大小
extern unsigned char receive_buff[BUFFER_SIZE];						//串口接收数据的临时缓存区

typedef struct
{
	unsigned short headData;		//数据头
	unsigned char commandData;		//数据指令
	unsigned char lengthData;		//数据内容长度
	unsigned int controlData;		//数据内容
} uartLcdDataBody_t;

typedef struct
{
	uartLcdDataBody_t bodyData;		//消息体
	unsigned short crcData;			//数据校验
} uartLcdDataFrame_t;

enum{
	UARTLCD_COMMAND_INIT_CHECK,				
	UARTLCD_COMMAND_FLOW_LEVEL,		
	UARTLCD_COMMAND_SMOKE_CLEAN,	
	UARTLCD_COMMAND_AIR_CONSUME,	
	UARTLCD_COMMAND_PRESSURE_NOW,	
	UARTLCD_COMMAND_PRESSURE_TARGET,
	UARTLCD_COMMAND_PRESSURE_REDUCE,
	UARTLCD_COMMAND_PRESSURE_ADD,	
	UARTLCD_COMMAND_FLOW_NOW,		
	UARTLCD_COMMAND_FLOW_TARGET,	
	UARTLCD_COMMAND_FLOW_REDUCE,	
	UARTLCD_COMMAND_FLOW_ADD,		
	UARTLCD_COMMAND_PRESSURE_MODE,	
	UARTLCD_COMMAND_HEAT_STATE,		
	UARTLCD_COMMAND_AIR_START,		
	UARTLCD_COMMAND_AIR_INPUT_STATE,
	UARTLCD_COMMAND_BUZZER_LEVEL,	
	UARTLCD_COMMAND_LANGUAGE,		
	UARTLCD_COMMAND_MESSAGE_WARNING,
	UARTLCD_COMMAND_LIGHT_WARNING,	
	UARTLCD_COMMAND_USB_CHANGE,		
	UARTLCD_COMMAND_VERSION_MESSGAE	
};

void uartLcdInit(void);
void uartLcdEndInit(void);
void uartLcdTask(void);

unsigned short swapEndian16(unsigned short value);
unsigned int swapEndian32(unsigned int value);
unsigned short crc16Modbus(unsigned char *ptr, unsigned short len);

void uartLcdMainUpdate(unsigned int num);					

void TxDataBufAdd(unsigned char *data);							//向发送缓冲区加入一条待发送的数据
void RxDataBufAdd(unsigned char *data);							//向接收缓冲区加入一条待处理的数据
void RxDataBufCheck(unsigned char *data,unsigned char length);	//检验接收到串口数据是不是一帧合格的数据
void RxDataBufAnalyze(unsigned char *data);						//处理串口指令
void TxDataBufPack(unsigned char command,unsigned int num);		//发送串口数据封包
void TxDataBufSend(unsigned char command,unsigned int num);		//直接发送串口数据，不经过缓存

#endif



    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 8
    • 9
    • 10
    • 11
    • 12
    • 13
    • 14
    • 15
    • 16
    • 17
    • 18
    • 19
    • 20
    • 21
    • 22
    • 23
    • 24
    • 25
    • 26
    • 27
    • 28
    • 29
    • 30
    • 31
    • 32
    • 33
    • 34
    • 35
    • 36
    • 37
    • 38
    • 39
    • 40
    • 41
    • 42
    • 43
    • 44
    • 45
    • 46
    • 47
    • 48
    • 49
    • 50
    • 51
    • 52
    • 53
    • 54
    • 55
    • 56
    • 57
    • 58
    • 59
    • 60
    • 61
    • 62
    • 63
    • 64
    • 65
    • 66
    • 67
    • 68
    • 69
    • 70
    • 71
    • 72
    • 73
    • 74
    • 75
    • 76
    • 77
    • 78
    • 79
    • 80
    • 81
    • 82
    • 83
    • 84
    • 85
    • 86
    • 87
    • 88
    • 89
    • 90
    • 91
    • 92
    • 93
    • 94
    • 95
    • 96
    • 97
    • 98
    • 99
    • 100
    • 101
    • 102
    • 103
  • 相关阅读:
    最新豆瓣top250爬虫案例代码分析[注释齐全]
    11.30 - 每日一题 - 408
    开源之夏经验分享｜Dragonfly 社区 李从旺：社区贡献也是一种影响力
    pdf怎么转换成ppt呢?看完每个人都会
    计算机网络-网络层（ARP协议，DHCP协议，ICMP协议）
    GEE：数据预处理的细节（处理顺序。比如， select() 和 filter() 要优先于 map()）
    经验分享：产品经理面试的5大技巧
    form-create的基本使用
    数字经济发展，助力企业数字化转型升级
    【算法-动态规划】斐波那契第 n 项
  • 原文地址：https://blog.csdn.net/weixin_50183638/article/details/133808803