c/c++实现window简易串口通信
c/c++实现window简易串口通信
-
- 控制台输出
- 日志文件
- 串口数据
- 主代码实现main.cpp
- FileDataBase.cpp
- data_handle.cpp
控制台输出
COM打开成功！
0:退出 1:参数设置 4:发送指令
4
请输入指令:
165132344
2022-04-18 10:54:13 resp 16 51 32 34
0:退出 1:参数设置 4:发送指令
0:退出 1:参数设置 4:发送指令
recv 2022-04-18 10:54:21 recv 68 74 74 70 3A 2F 2F 77 77 77 2E 63 6D 73 6F 66 74 2E 63 6E
0
读串口失败!
日志文件
2022-04-18 10:54:13 resp 16 51 32 34
2022-04-18 10:54:21 recv 68 74 74 70 3A 2F 2F 77 77 77 2E 63 6D 73 6F 66 74 2E 63 6E
串口数据
[2022-04-18 10:54:13.270]# RECV HEX>
16 51 32 34
[2022-04-18 10:54:21.527]# SEND HEX>
68 74 74 70 3A 2F 2F 77 77 77 2E 63 6D 73 6F 66 74 2E 63 6E
主代码实现main.cpp
主线程建立接收【副线程】，主线程负责发送指令，【副线程】负责接收指令。
#include
#include
#include
#include
#include "utils/FileDataBase.cpp"
#include "utils/data_handle.cpp"
HANDLE hCom;
// const char serial_port[6]="com10";//串口选择
const int baudRate=115200;//波特率
const int byteSize = 8; //每个字节有8位
const int parity = 1; //无奇偶校验位
const int stopBits = 1; //一个停止位
DWORD APIENTRY Thread1 ( LPVOID threadArg )
{
time_t time_stamp = time(NULL);//时间
struct tm *tm_time=localtime(&time_stamp);
char s_time[0x30]={0};//字符型时间1997-01-02 03:04:05 06
char s_day[0x10]={0};//时间天19970102
int l_day=time_stamp/(24*60*60);
char log_filename[0x100]={0};
char log_data[0x1000]={0};
bool bReadStat;
DWORD recv_len;//从串口读取的字节数
char recv_data[0x1000] = { 0 };//从串口接收到的数据
while(1){
bReadStat = ReadFile(hCom, recv_data, sizeof(recv_data), &recv_len, NULL);
if (!bReadStat)
{
printf("读串口失败!");
return FALSE;
}else if(recv_len>0){
time_stamp = time(NULL);//时间
tm_time=localtime(&time_stamp);
l_day=time_stamp/(24*60*60);
sprintf(s_time,"%04d-%02d-%02d %02d:%02d:%02d",1900+tm_time->tm_year,(1+tm_time->tm_mon),tm_time->tm_mday,tm_time->tm_hour,tm_time->tm_min,tm_time->tm_sec);//时间格式00
sprintf(s_day,"%04d%02d%02d",1900+tm_time->tm_year,(1+tm_time->tm_mon),tm_time->tm_mday);//年月日
sprintf(log_filename,"serial_%s.log",s_day);//日志文件名初始化
sprintf(log_data,"%s\trecv\t",s_time);
data_handle::char_to_hex(recv_data,recv_len,&log_data[strlen(log_data)]);
sprintf(&log_data[strlen(log_data)],"\r\n");
FileDataBase::log_(log_filename,log_data);//日志打印
printf("recv\t%s",log_data);//日志输出
// printf("%s\n",recv_data);
}
// Sleep(100);
}
}
int main(void)
{
HANDLE hComm;
TCHAR serial_port[100];
wsprintf(serial_port, TEXT("\\\\.\\COM%d"), 2);
//COM1口//允许读//指定共享属性，由于串口不能共享，所以该参数必须为0//打开而不是创建 //属性描述，该值为FILE_FLAG_OVERLAPPED，表示使用异步I/O，该参数为0，表示同步I/O操作
hCom = CreateFile(serial_port,GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,NULL);
if (hCom == INVALID_HANDLE_VALUE){
printf("打开COM失败!%s\n",serial_port);
return 1;
}else{printf("COM打开成功！\n");}
SetupComm(hCom, 1024, 1024); //输入缓冲区和输出缓冲区的大小都是1024
/*********************************超时设置**************************************/
COMMTIMEOUTS TimeOuts;
//设定读超时
TimeOuts.ReadIntervalTimeout = MAXDWORD;//读间隔超时
TimeOuts.ReadTotalTimeoutMultiplier = 0;//读时间系数
TimeOuts.ReadTotalTimeoutConstant = 0;//读时间常量
//设定写超时
TimeOuts.WriteTotalTimeoutMultiplier = 1;//写时间系数
TimeOuts.WriteTotalTimeoutConstant = 1;//写时间常量
SetCommTimeouts(hCom, &TimeOuts); //设置超时
/*****************************************配置串口***************************/
DCB dcb;
GetCommState(hCom, &dcb);
dcb.BaudRate = baudRate; //波特率为9600
dcb.ByteSize = byteSize; //每个字节有8位
dcb.Parity = parity; //无奇偶校验位
dcb.StopBits = stopBits; //一个停止位
SetCommState(hCom, &dcb);
//fd_set设置非阻塞
fd_set fd_set0={0};//服务器socket accept
struct timeval tv0={1,0};//tv0.tv_sec=1;
int select_return=0;//select返回值
//
char send_input[0x1000]={0};//这是从键盘接收到的数据
char resp_data[0x1000]={0};//发送的数据
time_t time_stamp = time(NULL);//时间
struct tm *tm_time=localtime(&time_stamp);//本地时间
char s_time[0x30]={0};//字符型时间1997-01-02 03:04:05 06
char s_day[0x10]={0};//时间天19970102
int l_day=time_stamp/(24*60*60);
char log_filename[0x100]={0};
char log_data[0x1000]={0};
HANDLE hThread; /* 记录线程句柄 */
DWORD ThreadID; /* 记录线程ID号 */
DWORD waitingResult; /* 等待线程退出的等待结果 */
DWORD threadExitCode; /* 记录线程的返回值 */
char * aMessage = 0 ;
/* 创建并启动线程ThreadOne，返回值为线程句柄，赋值给hThread */
hThread = CreateThread ( NULL, 0L, Thread1, (LPVOID)aMessage, 0L, &ThreadID );
if ( hThread == NULL ) {
printf ("线程ThreadOne创建失败。错误代码：%lu\n", GetLastError() );
return EXIT_FAILURE ;
}
while (1)
{
printf("0:退出\t1:参数设置\t4:发送指令\r\n");
char ch=getchar();
if(ch=='0'){//数据设置
break;
}else if(ch=='1'){//参数设置(未实现)
// char ch=getchar();
}else if(ch=='2'){//重新连接(未实现)
}else if(ch=='4'){//数据发送
// fgets(send_input,sizeof(send_input),stdin);
printf("请输入指令:\r\n");
scanf("%s",send_input);
int input_len=strlen(send_input);
int resp_len=data_handle::hex_to_char((unsigned char*)send_input, input_len, (unsigned char*)resp_data);
DWORD resp_status=0;
BOOL status = WriteFile(hCom,resp_data,resp_len,&resp_status,NULL);
if(resp_status==resp_len&&resp_len!=0){
time_stamp = time(NULL);//时间
tm_time=localtime(&time_stamp);
l_day=time_stamp/(24*60*60);
sprintf(s_time,"%04d-%02d-%02d %02d:%02d:%02d",1900+tm_time->tm_year,(1+tm_time->tm_mon),tm_time->tm_mday,tm_time->tm_hour,tm_time->tm_min,tm_time->tm_sec);//时间格式00
sprintf(s_day,"%04d%02d%02d",1900+tm_time->tm_year,(1+tm_time->tm_mon),tm_time->tm_mday);//年月日
sprintf(log_filename,"serial_%s.log",s_day);//日志文件名初始化serial_20010203.log
sprintf(log_data,"%s\tresp\t",s_time);//日志数据初始化
data_handle::char_to_hex(resp_data,resp_len,&log_data[strlen(log_data)]);//char数组转换为hex
sprintf(&log_data[strlen(log_data)],"\r\n");
FileDataBase::log_(log_filename,log_data);//日志打印
printf("%s",log_data);//日志输出
}
}else if(ch==0x1b){//esc退出程序
}else{
// printf("没有这个方法:0\n");
}
}
CloseHandle(hCom);
}
FileDataBase.cpp
文件数据库简易操作，个人喜好，与主流程必要相关无关，相关操作可以省略
#ifndef _FILE_DATABASE_
#define _FILE_DATABASE_
#include
#include
#include
#include
// #include "data_handle.cpp"
namespace FileDataBase
{
//创建文件夹
void CreateFolder(char *folder)
{
if (_access(folder, 0) == -1) _mkdir(folder);// 文件夹不存在则创建文件夹
}
//创建日志
void create(char *filename,char *filedata){
FILE *fd = fopen(filename,"w+");
if(fd != NULL){
printf("%s is created.\n",filename);
}
}
//获取文件长度
int get_len(char *filename){
FILE *file = fopen(&filename[0],"rb");//用r会出现读取不全，用rb数据不够准确
if(file==NULL){
return -1;
}else{
fseek(file,0,2);//定位到结尾
int size=ftell(file);
return size;
}
}
//查询数据
int read(char *filename,char *filedata){
FILE *file = fopen(&filename[0],"rb");//用r会出现读取不全，用rb数据不够准确
if(file==NULL){
return -1;
}else{
fseek(file,0,2);//定位到结尾
int size=ftell(file);
fseek(file,0,0);//定位到开头
int size1=fread(&filedata[0],sizeof(char),size,file);
if(size1!=-1)filedata[size1]=0;
// printf("\nsize1:%d",size1);
fclose(file);//以只读方式打开，不需要写入
return size;
//远程53c25(342836)-f3
//53b34(342836)-52ffff(339967)
}
}
//插入数据
int insert(char *filename,char *filedata){
FILE *file = fopen(filename,"ab+");
if(file==NULL){
return -1;
}else{
fputs(filedata,file);
fclose(file);
return 0;
}
}
//插入数据
int log_(char *filename,char *filedata){
FILE *file = fopen(filename,"ab");
int ret=fputs(filedata,file);
fclose(file);
return ret;
}
//插入日志
int log_(char *filename,char data){
FILE *file = fopen(filename,"ab");
if(file==NULL){
return -1;
}else{
fputc(data,file);
fclose(file);
return 0;
}
}
// int hex(char *filename,char *data,int len){
// FILE *file = fopen(filename,"ab");
// char* ch=new char[len*4];
// data_handle::char_to_hex(&data[0],&ch[0],len);//数据转换
// fputs(&ch[0],file);
// fclose(file);
// return 0;
// }
//修改数据
//删除数据
}
#endif
data_handle.cpp
（数据处理，个人喜好，与主流程必要相关无关，本操作可以省略）
#ifndef _data_handle_
#define _data_handle_
#include "structs.h"
#include "stdio.h"
#include
#include
#include "FileDataBase.cpp"
//char to str
const unsigned char char_to_str_L[0x100]={
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F',
'0','1','2','3','4','5','6','7','8','9','A','B','C','D','E','F'
};
const unsigned char char_to_str_H[0x100]=
{
'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0',
'1','1','1','1','1','1','1','1','1','1','1','1','1','1','1','1',
'2','2','2','2','2','2','2','2','2','2','2','2','2','2','2','2',
'3','3','3','3','3','3','3','3','3','3','3','3','3','3','3','3',
'4','4','4','4','4','4','4','4','4','4','4','4','4','4','4','4',
'5','5','5','5','5','5','5','5','5','5','5','5','5','5','5','5',
'6','6','6','6','6','6','6','6','6','6','6','6','6','6','6','6',
'7','7','7','7','7','7','7','7','7','7','7','7','7','7','7','7',
'8','8','8','8','8','8','8','8','8','8','8','8','8','8','8','8',
'9','9','9','9','9','9','9','9','9','9','9','9','9','9','9','9',
'A','A','A','A','A','A','A','A','A','A','A','A','A','A','A','A',
'B','B','B','B','B','B','B','B','B','B','B','B','B','B','B','B',
'C','C','C','C','C','C','C','C','C','C','C','C','C','C','C','C',
'D','D','D','D','D','D','D','D','D','D','D','D','D','D','D','D',
'E','E','E','E','E','E','E','E','E','E','E','E','E','E','E','E',
'F','F','F','F','F','F','F','F','F','F','F','F','F','F','F','F'
};
// char char_to_str_H[0x10]={};
//str —— char
const unsigned char str_to_char_H[0x100]=
{
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0x00,0x10,0x20,0x30,0x40,0x50,0x60,0x70,0x80,0x90,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xa0,0xb0,0xc0,0xd0,0xe0,0xf0,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xa0,0xb0,0xc0,0xd0,0xe0,0xf0,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff
};
const unsigned char str_to_char_L[0x100]=
{
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff
};
char http_data[0x10000]={0};//接收的数据
// struct key_value *param1[10]={0};
namespace data_handle{
int char_to_hex( char *src, int len,char *dest){
// int index=0;
for(int i0=0;i0'9'){
src[i0]=0;
break;
}
}
}
void check_int(unsigned char *src){
for(int i0=0;;i0++){
if(src[i0]==0)break;
if(src[i0]<'0'||src[i0]>'9'){
src[i0]=0;
break;
}
}
}
void check_str(char *src){
for(int i0=0;;i0++){
if(src[i0]==0)break;
if(src[i0]<'0'||(src[i0]>'9'&&src[i0]<'A')||(src[i0]>'Z'&&src[i0]<'a')||src[i0]>'z'){
src[i0]=0;
break;
}
}
}
void check_str(unsigned char *src){
for(int i0=0;;i0++){
if(src[i0]==0)break;
if(src[i0]<'0'||(src[i0]>'9'&&src[i0]<'A')||(src[i0]>'Z'&&src[i0]<'a')||src[i0]>'z'){
src[i0]=0;
break;
}
}
}
//如果相等1,不相等0
// int no_equal(char *str1,char *str2){
// int len_1=sizeof(str1);
// int len_2=sizeof(str2);
// unsigned char return0=1;
// if(len_1==len_2){
// for(int i0=0;(return0==0)&&(i0'9'||str[i0]<'0')return return_int;
// printf("%d+%c\n",return_int,str[i0]);
return_int=return_int*10+(int)str_to_char_L[str[i0]];
}
return return_int;
}
//字符串转换为大写char
int str_to_char(char *str,int len,char *chars){
// char* chars=new char[(len/2)+1];
chars[len/2]=0x00;
for(int i0=0;i0<(len/2);i0++){
chars[i0]=(str_to_char_H[str[2*i0]])+str_to_char_L[str[2*i0+1]];
}
return len/2;
}
}#endif
```