AMETEK SLM Series Rev B - Manual (Page 81)

Appendix B SLM-Series AC/DC Electronic Load
M540072-01 Rev B B-5
break;
}
/* finally send the non-spacific */
}while ((rd_result == 0) && (timeout == 0));
}
int pd_init(int pd_com)
{
if ((pd_com != 1) && (pd_com != 2))
return(OPER_ERR);
if (pd_com == 2)
/* initial communication port 2 */
{
ACE_DATA_REG = 0x2f8;
ACE_INT_ENB_REG = 0x2f9;
ACE_INT_IDENT_REG = 0x2fa;
ACE_LINE_CTL_REG = 0x2fb;
ACE_MODEM_CTL_REG = 0x2fc;
ACE_LINE_STAT_REG = 0x2fd;
ACE_MODEM_STAT_REG = 0x2fe;
COM_INT_NUM = 11;
IRQ_MASK = 0xf7; /* IRQ mask for IRQ3 (11110111) */
}
else
/* initial communication port 1 */
{
ACE_DATA_REG = 0x3f8;
ACE_INT_ENB_REG = 0x3f9;
ACE_INT_IDENT_REG = 0x3fa;
ACE_LINE_CTL_REG = 0x3fb;
ACE_MODEM_CTL_REG = 0x3fc;
ACE_LINE_STAT_REG = 0x3fd;
ACE_MODEM_STAT_REG = 0x3fe;
COM_INT_NUM = 12;
IRQ_MASK = 0xef; /* IRQ mask for IRQ4 (11101111) */
}
bioscom(0, 0xe3, pd_com-1);
/* boud rate : 9600, 1 start bit */
pd_rem(); /* no parity, 1 stop bit. */
pd_wrt("remote",6); /* data bit : 8 bits */
return(SUCCESS);
}
int pd_meas(char *wrtmbuf, char *rdmbuf,int wrtmcnt,int rdmcnt)
{
static char *wrtbuf[10] = { "CURR 1", "CURR 2", "CURR 3", "CURR 4",
"VOLT 1", "VOLT 2", "VOLT 3", "VOLT 4", }
char tmpbuf[20] ={"chan "};
int cnt,result,t,cmp,measerr;
char ch;
char rdtmpbuf[20],chanbuf[20];
char measbuf[6];
for (cnt = 0; cnt < wrtmcnt; cnt++, wrtmbuf++)
{
measbuf[cnt] = *wrtmbuf;