Blagodarq vi za linkovete. Programata se poluchi mnogo oprostena.

Код:

#include <stdio.h>
#include <sys/types.h>
#include <fcntl.h>
#include <termios.h>
#include <string.h>

void sendCommand(int fd, char *command, char *result, int size)
{
	int i = 0;
	memset(result, 0, size);
	write(fd, command, strlen(command));
	char p;
	char c;
	do
	{
		p = c;
		c = '\0';
		int res = read(fd, &c, 1);
		if(res > 0)
		{
			result[i] = c;
			i++;
		}
	}while(p != 'K');
}

int main()
{
	long BAUD = B4800;                      // derived baud rate from command line
	long DATABITS = CS8;
	long STOPBITS = 0;
	long PARITYON = 00;
	long PARITY = 00;

	struct termios newtio;
	int fd = open("/dev/ttyUSB0", O_RDWR | O_NOCTTY | O_NONBLOCK);
	if(fd < 0)printf("Error!!!\n");

	fcntl(fd, F_SETOWN, getpid());

	newtio.c_cflag = BAUD | CRTSCTS | DATABITS | STOPBITS | PARITYON | PARITY | CLOCAL | CREAD;
	newtio.c_iflag = IGNPAR;
	newtio.c_oflag = 0;
	newtio.c_lflag = 0;       //ICANON;
	newtio.c_cc[VMIN]=1;
	newtio.c_cc[VTIME]=1;
	tcflush(fd, TCIFLUSH);
	tcsetattr(fd,TCSANOW,&newtio);

	char result[128];
	int i;
	for(i=0; i<20; i++)
	{
		sendCommand(fd, "AON\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "BON\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "CON\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "DON\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "EON\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "FON\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "GON\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "STATE\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
	
		sendCommand(fd, "AOFF\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "BOFF\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "COFF\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "DOFF\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "EOFF\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "FOFF\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "GOFF\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
		sendCommand(fd, "STATE\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
	
		sendCommand(fd, "AIN\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
	
		sendCommand(fd, "DIN\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
	
		sendCommand(fd, "ERROR\r", result, sizeof(result));
		printf("RESULT: %s\n", result);
        }
	return 0;
}

Publicuvam coda ako nqkoi drug se sblyska s takyv problem nadqvam se da mu pomogne.

Blagodarq vi za informaciqta.

Opitah da napisha sobstvena programka koqto da otvarq comm kato file, no ne uspah da namerq nachin da setna BITS PER SEC i  stop bita.

Molq ako razpolagate s nqkoi tutorial ili drugi materiali kak stava pishte.

Zdraveite.

Vyprosa mi e kak se otvarqt Comm  portove pod Linux. Ima li programa v linux podobna na Hiperterminala pod Windows.

Ima li fail v /dev s koito moga da rabotq.

Molq ako razpolagate s nqkoq statiq ili drugi materiali svyrzani s nachina na upotreba na Comm pod Linux daite link.

Blagodarq vi predvaritelno,