serial_xx_x.c

这是一个用c写的串口测试的程序

/*vxCom.c - serial interface communication programme between host and target machine */
/*description:baud rate is 9600bps;8 data bit,1 1 stop bit,no verify		     */
/*author: faliang zhou         date: February 13,2009				     */

#include "vxWorks.h"
#include "stdio.h"
#include "stdlib.h"
#include "ioLib.h"
#include "taskLib.h"

int receive(int);
int send(int);

char buff[]="www.lygzb.com.cn\n";

int main()
{
	int handle;
	handle = open("/tyCo/0",2, 0);/*warning:the name is tyCo not is tyco !*/
	taskSpawn("rec",60,0,0x2000,(FUNCPTR)receive,handle,0,0,0,0,0,0,0,0,0);/*creat and activation accive task*/
	taskSpawn("send",80,0,0x2000,(FUNCPTR)send,handle,0,0,0,0,0,0,0,0,0);/*creat and activation send task*/
}

int receive(int fd)
{
	char buffer[20];
	/*char rword;
	int i=0;*/
	if(fd!=ERROR)
		while(1)
		{
			read(fd, buffer,10);
			/*read(fd, &buffer1[i++],1);*/

			/*printf("%c",rword);*/
			/*if(rword!='\0')*/
			
			/*buffer1[i++]=rword;*/
			printf("%s\n",buffer);
			/*printf("zhongguo\n");*/
		
			/*printf("the worlds=%c",rword);*/
			/*else				/*it don't execute this part,maybe the reason is havn't '\0'*/
			/*{
			printf("123456");	
			}*/
			taskDelay(200);	
		}
	else
		printf("error!\n");
}


int send(int fd)
{	
	int i=0;
	if(fd!=ERROR)	
		while(i<3)
		{
			write(fd,buff,strlen(buff));/*buff containing bytes to be written*/
			printf("you have send '%s' %d times to host com.\n",buff,i+1);
			i++;
			taskDelay(50);
		}
	else
		printf("error!\n");
}