yjcomtest.c

linux 多串口测试程序

#include "cfg_com.h"



int main(int argc,char* argv[])
{
	int ncomport,fd,fd1,nSpeed,nBits,nEvent,nStop,ncount;
	int nret;
	unsigned char cRecvBuf[100];
	fd = -1;
	nSpeed =-1;
	nBits = 8;
	nEvent ='N';
	nStop =1;
	ncomport = -1;
	ncount = 0;

	ncomport = 1;
	
	fd = OpenCom(1);
	if(fd == -1)
	{
		perror("Open Com is error");
			return -1;
	}
#if 1
	{
			
		nSpeed = 115200;
		if( nSpeed <300 || nSpeed >115200)
		{
			perror("BandRate range 300<=bps<=115200\n");
			return -1;
		}
					
		SetComOpt(fd1,nSpeed,nBits,nEvent,nStop);	
		 int sendSize = 0;
			 unsigned char sendBuf1[] = {0xFF,0x02,0x01};
			 unsigned char sendBuf2[] = {0xFF,0x0A,0x01};
			 printf("send fd=%d\n",fd);
			 SetComOpt(fd,nSpeed,nBits,nEvent,nStop);
			 while(1)
			 {
				//sendSize = ComSend (fd,SENDSTR,sizeof(SENDSTR)/sizeof(unsigned char), 50);
				sendSize = ComSend (fd,sendBuf1,3, 50);
				usleep(100);
				sendSize = ComSend (fd,sendBuf2,3, 50);				
		     	//printf("sendSize2 = %d\n",sendSize); 	
		     	sleep(5);
			//	usleep(100);
		 
		     	nret = ComRecv(fd,&cRecvBuf,3,100);
		     	printf("recv is %d\n",nret);
		     	if(nret  > 0)
			 	{	
			 		int i;
			 		for(i=0;i<nret;i++)
			 		 		printf("%02x ",cRecvBuf[i]);
			 	}
			 	printf("\n");
		 	
			 }
		}
	#endif	

	if(fd != -1)
		CloseCom(fd);
		
		return 0;
}