void pressure ()
{
/* Open communication with DataAcqu using usb-rs232 com address "7" */
viOpenDefaultRM (&defaultRM);
viOpen (defaultRM,"ASRL07::INSTR",VI_NULL,VI_NULL, &DataAcqu);
viQueryf(DataAcqu, "*IDN?\n","%t",reply_string);
printf ("Instrument identification string: %s\n",reply_string);
/* Reset instrument to power-on and clear the Status Byte */
viPrintf (DataAcqu, "*RST;*CLS\n");
viPrintf (DataAcqu, "STAT:OPER:ENAB 272\n");
viPrintf (DataAcqu, "*ESE 1\n");
viPrintf (DataAcqu, "*SRE 255\n");
viPrintf (DataAcqu, "CONF:CURR 0.1, 1e-5, (@121)\n");
viPrintf (DataAcqu, "CALC:SCAL:GAIN 37500, (@121)\n");
viPrintf (DataAcqu, "CALC:SCAL:OFFS -148.4, (@121)\n");
viPrintf (DataAcqu, "CALC:SCAL:UNIT 'KPA', (@121)\n");
viPrintf (DataAcqu, "CALC:SCAL:STAT ON, (@121)\n");
viPrintf (DataAcqu, "ROUT:SCAN (@121)\n");
viPrintf (DataAcqu, "TRIG:SOUR TIM\n");
viPrintf (DataAcqu, "TRIG:TIMER 5\n");
viPrintf (DataAcqu, "TRIG:COUNT 5\n");
viPrintf (DataAcqu, "INIT;*OPC\n");
for (count = 0; count <5; count++)
{
/* Query the Status of Standard Operation Register
after the sweep done, the five bit position will set to 1 */
loop:
viPrintf(DataAcqu, "STAT:OPER?\n");
viScanf(DataAcqu,"%d",&status);
//printf("stat:oper= %d ", status);
bool value;
value = status & 0x10;
//printf("value = %d ",value);
if ( !value ) //if not set, keep query
goto loop;
else //show the query data
{
viPrintf(DataAcqu, "SYST:TIME?\n");
viScanf(DataAcqu,"%s",&reply_string);
printf("Time = %s ", reply_string);
viPrintf (DataAcqu,"DATA:READ?\n"); /* Get all the readings */
viScanf(DataAcqu,"%s",&temp);/* Put readings into an array */
printf("Data = %s\n", temp);
}
}
viClose (DataAcqu); /* Close the communication port */
viClose (defaultRM);
}
bool EITMeasurementThread::openSwitch(int si) {
char buf [1000] = {0};
viPrintf (viSwMat, (ViString)CMD_SWITCH_OPEN[si]);
this->msleep(exp->SWITCHING_DELAY);
int test_count = 0;
while (test_count < 5) {
viPrintf (viSwMat, (ViString)CMD_SWITCH_OPEN_TEST[si]);
viScanf (viSwMat, (ViString)"%t", &buf);
if (strlen(buf) == 0) return false;
else if (buf[0] == '1') return true;
test_count++;
}
return false;
}
int Delay_LastComplete( int handle )
{
double lfCurrentTime = 0.0,
lfTimeOut = 10.0,
lfStartTime = 0.0;
int iOpcValue = 0;
int status = 0;
ViAttrState attrValue = 0;
if ( viGetAttribute ( handle , VI_ATTR_TMO_VALUE , &attrValue ) == 0 )
lfTimeOut = attrValue / 1E3;
GetCurrentDateTime ( &lfStartTime );
GetCurrentDateTime ( &lfCurrentTime );
while(( lfCurrentTime - lfStartTime ) < lfTimeOut )
{
GetCurrentDateTime ( &lfCurrentTime );
status = viPrintf ( handle , "*OPC?\n");
if ( status )
continue;
Delay ( 0.2 );
status = viScanf ( handle , "%d" , &iOpcValue);
if ( status )
continue;
if ( iOpcValue == 1 )
return 0;
}
return -1;
}
int anyErr(ViSession *pvi)
{
ViStatus err;
static char buf[1024]={0};
int err_no;
int err_cnt = 0;
err=viPrintf(*pvi, "SYSTEM:ERR?\n");
err=viScanf (*pvi, "%d%t", &err_no, &buf);
if(err_no >0){
++err_cnt;
}
err=viFlush(*pvi, VI_READ_BUF);
err=viFlush(*pvi, VI_WRITE_BUF);
viPrintf(*pvi, "*rst\n");
return err_cnt;
}
