Rockwell Automation 6008-SV2R VMEbus remote I/O Scanner - Manual (Page 161)

Chapter
Programming the Scanner
8
8Ć27
/*
**
** PRINT_BT_DATA() –– print contents of bt_data structure
**
**
This routine prints the contents of a bt_data structure, which is used by the
** queue_oneshot_bt(), oneshot_bt_complete(), configure_continuous_bt(), and
** continuous_bt_update() routines.
**
**
parameters: pointer to bt_data structure
** return value: none
**
*/
void
print_bt_data (bt_data far *ptr)
{
unsigned short i;
/* print command–type */
if (ptr–>cmd == CMD_OSBTWRITE) {
fprintf(stdout, ”\tcmd = ONE–SHOT BT WRITE\n”);
} else if (ptr–>cmd == CMD_OSBTREAD) {
fprintf(stdout, ”\tcmd = ONE–SHOT BT READ\n”);
} else if (ptr–>cmd == CMD_CONBTWRITE) {
fprintf(stdout, ”\tcmd = CONTINUOUS BT WRITE\n”);
} else {
fprintf(stdout, ”\tcmd = CONTINUOUS BT READ\n”);
}
/* print tag word */
fprintf(stdout, ”\ttag = %XH\n”, ptr–>tag);
/* print address */
fprintf(stdout, ”\taddress = %XH { rack %d, group %d, slot %d }\n”,
ptr–>addr, ((ptr–>addr & 0x00F0) >> 4),
((ptr–>addr & 0x000E) >> 1), (ptr–>addr & 0x0001));
/* print data length */
fprintf(stdout, ”\tdatalen = %d words\n”, ptr–>datalen);
/* if continuous operation, print irq */
if ((ptr–>cmd == CMD_CONBTWRITE) || (ptr–>cmd == CMD_CONBTREAD)) {
fprintf(stdout, ”\tinterrupting on IRQ %d with vector %XH\n”,
(ptr–>irq & 0x0007), ((ptr–>irq & 0xFF00) >> 8));
}
/* print data buffer */
for (i = 0; i < ptr–>datalen; i++) {
fprintf(stdout, ”\tbuffer[%d] = %XH\n”, i, ptr–>data[i]);
}
return;
}