Микроконтроллеры

И все таки есть такая буква:) http://www.caxapa.ru/mcu/wwwboard.html?id=34439
#include #include #include #include #include #include #include #include #include #define DEBUG 0 int main() { char rxbuf[1024], txbuf[1024]; int fd, nbrx, nbtx, ptx, prx, nb; fd_set rfdsin, rfdsout; struct termios my_termios; fd = open("/dev/ttyS0", O_RDWR | O_NOCTTY | O_NDELAY); // configure the serial port tcgetattr(fd, &my_termios); tcflush(fd, TCIFLUSH); my_termios.c_cflag = B9600 | CS8 |CREAD | CLOCAL | HUPCL; cfmakeraw(&my_termios); cfsetospeed(&my_termios, B9600); tcsetattr(fd, TCSANOW, &my_termios); nbtx=nbrx=0; ptx=prx=0; // the following code tries to be as "nice" as possible FD_SET(0, &rfdsin); // stdin FD_SET(fd, &rfdsin); // rs232 rx while(1){ FD_ZERO(&rfdsin); FD_ZERO(&rfdsout); if(nbtx==0) FD_SET(0, &rfdsin); else FD_SET(fd, &rfdsout); if(nbrx==0) FD_SET(fd, &rfdsin); else FD_SET(1, &rfdsout); select(5, &rfdsin, &rfdsout, NULL, NULL); if(nbtx == 0 && FD_ISSET(0, &rfdsin)){ // tx buf empty and data on stdin ptx=0; nbtx=read(0,txbuf,1024); DEBUG && fprintf(stderr,"stdin: read %d\n",nbtx); } if(nbtx > 0 && FD_ISSET(fd, &rfdsout)){ // have tx data and rs232 free nb= write(fd,txbuf+ptx, nbtx); DEBUG && fprintf(stderr,"rs232: wrote %d\n",nb); ptx += nb; nbtx -= nb; } if(nbrx == 0 && FD_ISSET(fd, &rfdsin)){ // rx buf empty and data on rs232 prx=0; nbrx=read(fd,rxbuf,1024); DEBUG && fprintf(stderr,"rs232: read %d\n",nbrx); } if(nbrx > 0 && FD_ISSET(1, &rfdsout)){ // have rx data and stdout free nb=write(1, rxbuf+prx, nbrx); DEBUG && fprintf(stderr,"stdout: wrote %d\n",nb); prx+= nb; nbrx -= nb; } } close(fd); }