Question

我的linux下串口程序只能写，加入读函数的时候出卡死了。你能把你的程序给我看下么，2247398897@qq.com

int main(void) { int fd1,nset1,nread,nwrite; char buf[1024]="0123456789"; fd1 = open("/dev/ttyUSB0", O_RDWR);//打开串口 if (fd1 == -1) { printf("Open /dev/ttyUSB0 error!!\n"); exit(1); } nset1 = set_opt(fd1,9600, 8, 'N', 1);//设置串口属性 if (nset1 == -1) { printf("Set port bad!!\n"); exit(1); } while(1) { /*memset(buf,1,1024); nread = read(fd1, buf,10);//读串口 if (nread > 0) { printf("From port read %d bit success!!\n",nread); printf( "Buffer is : %s\n", buf); //输出所读数据 } else printf("Read bad!!\n"); usleep(2000);//睡眠，等待数据多一点*/ nwrite = write(fd1, buf,10);//读串口 if (nwrite > 0) { printf("Write to port %d bit success!!\n",nwrite); printf( "Buffer is : %s\n", buf); //输出所读数据 } else printf("Write bad!!\n"); sleep(2);//睡眠，等待写完 } close(fd1); return 0; }

Answer 1

搜一个 程序

百度文库里有的