Appendix B
Sorensen SLM-4 Chassis
void pd_loc(void)
{
char ch;
outportb(ACE_INT_ENB_REG, 0);
/* disable all 8250 interrupt */
outportb(ACE_MODEM_CTL_REG, 0);
/* clear RTS,DTR to disable modem and
*/
/* turn off OUT2 to disable the
8250's*/
/* IRQ interrupt to system
*/
}/* Program terminated. */
C Example Program
/* Link this program with pd_rs232.obj */
#include <dos.h>
#include <stdio.h>
#include <conio.h>
#include <string.h>
main()
{
int com;
int io_err= 0;
char rdbuf[1024];
clrscr();
printf("Input COM1/COM2 port is : ");
scanf("%d", &com);
if((io_err = pd_init(com)) == 0)
/* Initial RS-232 interface */
{
setstr(rdbuf,'');
pd_wrt("chan
1",6);
delay(200);
pd_wrt("name?",5);
if ((io_err = pd_rd(a,10)) == 0)
{
do
{
/* Set the channel 1, preset off, current sink 1.0 amps and load on commands to the load. */
pd_wrt("chan
1",6);
delay(200);
pd_wrt("pres
off",8);
delay(200);
pd_wrt("curr:low
0.0",12);
delay(200);
pd_wrt("curr
high
1.0",13;
delay(200);
pd_wrt("load
on",7);
delay(200);
pd_wrt("meas:curr
?",11);
B-8
M540069-01 Rev B
Summary of Contents for SLM-4
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