HP E1418A, Service Manual

Page: 38 / 96

Performance
Verification Tests
Example
This example demonstrates a full performance verification test of the
module. The code shown in this example can be obtained from the file
prftest.c
on the examples disk provided with this manual.
/** FUNCTION PROTOTYPES **/
void main (void);
void err_handler(ViSession vi, ViStatus x); /* VTL error routine */
void sys_err(ViSession resource);
/* Checks for SCPI programming errors */
void pause(); /* Waits for a keystroke to continue program execution */
void dcv_check (); /* Voltage output verification test */
void compliance_check (); /* Compliance current verification test */
void maxcurrent_check (); /* Short circuit output current verification test */
void current_check (); /* Current output verification test */
/* DMM routines */
void dmm_setup (char function [6], char range [6]); /* Set function and range for DMM */
float dmm_measure ();
/* get the dmm measurement */
/** GLOBAL **/
ViStatus err;
ViSession defaultRM, cmd, dac, dmm;
int num_chan;
/* 8 or 16 */
float dcv_results [16][9]={0}; /* Voltage output verification test results */
float compliance_results [16] = {0}; /* Compliance current verification test results */
float maxcurrent_results [16] = {0}; /* Short circuit output current verification test results */
float current_results [16][9] = {0};
/* Current output verification test results */
void main (void)
{
dcv_check ();
compliance_check ();
maxcurrent_check ();
current_check ();
}
38 Verification Tests Chapter 4