[ts-7000] TS-7500 rs-485

["nxtcomputing" <>]

I am trying to communicate over the RS-485 port on a TS-7500 with TS-752 board. 
I have connected pins 1 and 6 on the DB-9M port of the TS-752 board to a RS-458 
device. I have tried to configure the ports using the following...

#xuartctl --port 0 --server --speed 9600
ttyname=/dev/pts/0
#xuartctl --port 1 --server --speed 9600
ttyname=/dev/pts/1

then in a program i tried to send over the both of the ports with no luck...

#include <iostream>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include "convert.h"
using namespace std;
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <termios.h>
#define BAUDRATE B9600            
#define _POSIX_SOURCE 1
#define FALSE 0
#define TRUE 1
volatile int STOP=FALSE;

int main(void) {        
        int fd;
        struct termios oldtio, newtio;
        fd = open("/dev/pts/0", O_RDWR | O_NOCTTY);
        if (fd <0) {
                perror("/dev/pts/0");
                exit(-1);
        }

        tcgetattr(fd, &oldtio); //save current settings
        bzero(&newtio, sizeof(newtio)); //clear new port settings

        newtio.c_cflag = BAUDRATE | CS8 | CLOCAL | CREAD | PARENB; 
        newtio.c_iflag = IGNPAR | IGNBRK;
        newtio.c_oflag = OPOST;

        newtio.c_lflag = 0;
        tcflush(fd, TCIFLUSH);
        tcsetattr(fd, TCSANOW, &newtio);
        
        char data[50];
        sprintf(data,"%c0101%cAC11R1C1A1P%c",0x02,0x1b,0x04);
        
        write(fd,&data[0],18);
        printf("sent on serial line: %s\n",&data[0]);   
        tcsetattr(fd, TCSANOW, &oldtio); //restore old setting
}

any ideas?




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