Is anybody on this mailing list using the ADCs from their board?
If so, how did you have it calibrated?
Should I send the board back to TS?
--
Emmanuel
On 16:18 Wed 02 Feb , wrote:
>
> I am able to set the digital output on and off ( 0v to 3.5v)
> By connecting this to the ADC, I get a different reading.
> They are apparent issue with the calibration.
>
> Q: What is the procedure to calibrate the board?
>
> ts7370:~/ts7370/adc# ../setbufout/setbufout 1 0; ./adc_7250
> Buffered Output Value on OUT_01: 1 (os:235014050 m:2)
> Buffered Output Value on OUT_01: 0 (ns:235014048 m:2)
> Calibration Values =
> [ 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 ]
> Board has been calibrated by Technologic Systems...
> Channel 0: 1.558V (av: 40851 / fs: 86507.520V) <<<< should be 0V !!!
> Channel 1: 2.506V (av: 65698 / fs: 86507.520V)
> Channel 2: 2.506V (av: 65698 / fs: 86507.520V)
> Channel 3: 1.872V (av: 49083 / fs: 86507.520V)
> Channel 4: 3.450V (av: 90429 / fs: 86507.520V)
> ts7370:~/ts7370/adc# ../setbufout/setbufout 1 1; ./adc_7250
> Buffered Output Value on OUT_01: 0 (os:100796320 m:2)
> Buffered Output Value on OUT_01: 1 (ns:100796322 m:2)
> Calibration Values =
> [ 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 ]
> Board has been calibrated by Technologic Systems...
> Channel 0: 3.455V (av: 90562 / fs: 86507.520V) <<<< 3.3-3.5v on scope, so
> ok!
> Channel 1: 2.506V (av: 65699 / fs: 86507.520V)
> Channel 2: 2.506V (av: 65698 / fs: 86507.520V)
> Channel 3: 1.872V (av: 49084 / fs: 86507.520V)
> Channel 4: 3.450V (av: 90429 / fs: 86507.520V)
>
>
> Also anticipating my next question.
> Q: Is there any buffering of the adcs ?
> Q: trigger for synchronization with external hardware?
>
> Thanks,
>
> --
> Emmanuel
--
Emmanuel
------------------------------------
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/ts-7000/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/ts-7000/join
(Yahoo! ID required)
<*> To change settings via email:
<*> To unsubscribe from this group, send an email to:
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
|