if (VI_SUCCESS > errStatus){
printf("ERROR: viPrintf() returned 0x%x\n",errStatus); return errStatus;}
/* Enable Port 0 Edge Detection */
errStatus = viPrintf (E1459, "EVEN:PORT0:EDGE:ENAB ON\n"); if (VI_SUCCESS > errStatus){
printf("ERROR: viPrintf() returned 0x%x\n",errStatus); return errStatus;}
/* Loop and poll Port Summary Register until event occurs */ while (event = 0)
{
errStatus = viQueryf (E1459, "EVEN:PSUM:EDGE?\n","%t",event); if (VI_SUCCESS > errStatus){
printf("ERROR: viPrintf() returned 0x%x\n",errStatus); return errStatus;}
}
/* Read NEDGE register and clear event detector register */ errStatus = viQueryf (E1459, "EVEN:PORT0:NEDGE?\n","%t",val);
if (VI_SUCCESS > errStatus){
printf("ERROR: viPrintf() returned 0x%x\n",errStatus); return errStatus;}
printf ("Negative Edge Event value = %s\n",val);
/* Read PEDGE register and clear event detector register */ errStatus = viQueryf (E1459, "EVEN:PORT0:PEDGE?\n","%t",val);
if (VI_SUCCESS > errStatus){
printf("ERROR: viPrintf() returned 0x%x\n",errStatus); return errStatus;}
printf ("Positive Edge Event value = %s\n",val);
/* Close Sessions */ errStatus = viClose (E1459);
if (VI_SUCCESS > errStatus){
printf("ERROR: viClose() returned 0x%x\n",errStatus); return 0;}
errStatus = viClose (viRM);
if (VI_SUCCESS > errStatus){
printf("ERROR: viClose() returned 0x%x\n",errStatus); return 0;}
} | /* End of main program */ |
38 Using the HP E1459A Module