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Mixed datas between Channel A & B with ADC-216

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Mixed datas between Channel A & B with ADC-216

Postby dchauveaux » Thu Jun 03, 2004 3:22 pm

Hello support,

I'm using W2K, with ADC-216 & Delphi V6
I've downloaded latest version of released drivers

I 'm using ADC-216 with both channels and trigger on channel A, with MaxSamples, gain is 5V (num 8), Timebase is 5 or 4 (96µs/sample or 48µs/sample)

on channel A I've got a signal coming from accel. that is about 2.5V, on channel B there is a shunt between signal and ground.

when device is ready, I read datas
then I can see datas from channel A mixed with datas from channel B
I mean for example a block of data with normal values (Ch A at 2.5V Ch B at 0V) then both channels are crossed (0V on Ch A and 2.5V on Ch B) then it's crossed again and so on
the length of a block is variable

Kind regards
D. Chauveaux
dchauveaux
 

Postby markspencer » Fri Jun 04, 2004 8:17 am

Hi,

I am sorry to hear that you are experiencing this problem.

Please can you let me know if you get the expected results with Picoscope?

Are you using Triggering.

Can you send me a .spd showing the signals in Picosocpe, and a csv file, or an excel file with your software signals.

Once I have this I will try to assist further.

Best regards,
Regards,

Mark Spencer
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Postby dchauveaux » Fri Jun 04, 2004 11:58 am

Hi,

There is not such a problem with Picoscope.

The problem occures when triggering on signal on channel A (adc200_set_trigger(True, 0, 0, -95, 18000) or with direct read (adc_set_trigger(False,0,0,0,0)

I was wondering wether such a problem may come from an error in initialization or something like that.

I have both .jpg and .csv files but, sorry, but how can I join files ??

Best regards
D. Chauveaux
dchauveaux
 

Postby markspencer » Mon Jun 07, 2004 7:27 am

Hi,

Thanks for the details.

Sorry I should have given you the email address to send them to:

tech@picotech.com

Best regards,
Regards,

Mark Spencer
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Postby dchauveaux » Tue Jun 08, 2004 12:28 pm

Hi,

As I wrote it in another thread (Reading values when entries are connected to ground) , everything is working fine fine on a notebook PC running with Win98.
I'm going to make tests with other OS and PC and let you know conclusions
dchauveaux
 


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