Pendulum CNT-91 - Page 48

Status = viWrite(Instr, “*IDN?\n”, 6, &RetCount);
Status = viRead(Instr, Buffer, MAX_CNT, &RetCount);
Buffer[RetCount]=0;
printf(“%s\n”,Buffer);
Status = viWrite(Instr, “INIT:CONT OFF;:func ‘per’\n”, 25,
&RetCount);
while( i++<10){
Status = viWrite(Instr, “init;fetc?\n”, 11, &RetCount);
if (Status != VI_SUCCESS) {
printf(“Write: status = %x, i = %d\n”, Status, i);
/* Close down the system */
Status = viClose(Instr);
Status = viClose(defaultRM);
return 0;
}
Sleep(200);
Status = viRead(Instr, Buffer, MAX_CNT, &RetCount);
if (Status != VI_SUCCESS) {
printf(“Read: status = %x, i = %d\n”, Status, i);
/* Close down the system */
Status = viClose(Instr);
Status = viClose(defaultRM);
return 0;
}
Buffer[RetCount]=0;
printf(“%s\n”,Buffer);
Sleep(25);
}
Status = viWrite(Instr, “syst:err?\n”, 10, &RetCount);
Sleep(25);
Status = viRead(Instr, Buffer, MAX_CNT, &RetCount);
Buffer[RetCount]=0;
printf(“%s\n”,Buffer);
/* Close down the system */
Status = viClose(Instr);
Status = viClose(defaultRM);
return 0;
}
void Sleep( clock_t Wait )
{ clock_t Goal;
Goal = Wait + clock();
while( Goal > clock() )
;
}
Programming Examples
4-12 USB Communication (Ex. #4)