Measurement-computing Personal488 rev.3.0 For DOS & Windows 3.Xi Manual de usuario descargar pdf (Pagina 190)

II. SOFTWARE GUIDES - 9. Driver488/SUB 9G. Pascal

Personal488 User’s Manual, Rev. 3.0 II-175

{ Display a reading }

lrv: = ioEnter (adc,response);

Val (response,voltage,code);

Writeln (‘ADC488 channel #1 reading value is ‘,voltage);

{ Display the average of 10 readings }

sum: = 0.0;

for i: 0 to 9 do begin

lrv: = ioEnter (adc,response);

Val (response,voltage,code);

sum: = sum + voltage;

end;

Writeln (‘The average of 10 readings is ‘,sum/10.0);

{ Set up the ADC488:

Compensated binary output format (G10)

100uSec scan interval (I3)

No pre-trigger scans, 100 post-trigger scans (n100)

Continuous trigger on GET (T1)

}

lrv: = ioOutput (adc,’G10I3N100T1X’);

{ Wait for the ready bit of the ADC488 to be asserted }

while not bitset (ioSPoll (adc),32 do begin end;

{ Trigger the ADC488 }

rv: = ioTrigger (adc);

{ Wait for the ready bit of the ADC488 to be asserted }

while not bitset (ioSPoll (adc),128) do begin end;

{ Reset the buffer pointer of the ADC488 }

lrv: = ioOutput (adc,’BOX’);

{ Take 100 readings from the ADC488 }

noterm.EOI: = false;

noterm.nChar: = 0;

lrv: = ioEnterX (adc,hundred,200,true,noterm,true,nilptr);

{ Check the Status before and after waiting }

rv: = ioStatus (ieee,substat);

{ Wait for completion of input operation }

rv: = ioWait (adc);

rv: = ioStatus (ieee,substat);

showstat (@substat);

{ Print the received characters }

for i: = 0 to 99 do begin

Write (hundred[i]);

if (i mod 10) = 9 then

Writeln (‘’);

end;

end.

Command Summary

To obtain a summary of the Pascal language commands for Driver488/SUB, turn to the “Section III:

Command References” of this manual.

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Measurement-computing Personal488 rev.3.0 For DOS & Windows 3.Xi Manual de usuario Pagina 190

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