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txstr (″q2$″); /* read channel 2 output */
rxstr (str2); /* into str2 */
sscanf (str2, ″%f″, &v2); /* scan str2 for a float variable */
x += 0.0025; /* increment x6 output by 2.5 mV */
if (x >= 10) x = 0;
sprintf (str3, ″X6,%f$″, x); /* make x6 command string */
txstr (str3); /* send x6 command */
/* print results to screen */
printf (″Channel 1 = %10.36 Channel 2 = %10.36\n″, v1, v2);
}
}
/* ********************************************* */
nocom ()
/* error handling routine goes here */
{
printf(″RS232 Timeout Error\n″);
putch (7);
exit ();
}