HP (Hewlett-Packard) E1418A TV Converter Box User Manual


 
/*** SCPI Error check ***/
void sys_err(ViSession resource)
{
char buf [1024] = {0};
int err_no;
err = viPrintf (resource, “SYST:ERR?\n”); /* query error queue */
if (err < VI_SUCCESS) err_handler(resource,err);
err = viScanf (resource,"%d%t",&err_no,&buf); /* get error number and string */
if (err < VI_SUCCESS) err_handler(resource,err);
while (err_no != 0)
{
printf (“\nCommand Error: %d,%s\n”,err_no,buf);
err = viPrintf (resource, “SYST:ERR?\n”); /* query error queue */
if (err < VI_SUCCESS) err_handler(resource,err);
err = viScanf (resource,"%d%t",&err_no,&buf); /* get error number and string */
if (err < VI_SUCCESS) err_handler(resource,err);
}
return;
}
/*** End of SCPI error check ***/
Chapter 2 Programming Examples 49