Logic Analyzer Pro resolution

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arnaudrichard
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Joined: Mon Jul 25, 2016 7:59 am

Logic Analyzer Pro resolution

Post by arnaudrichard » Tue Mar 28, 2017 1:40 pm

Hi,

I used the logic analyzer Pro (with the additional board on top of redpitaya1.1/steplab125-14) for the first time today.
It looks like it completely ruins the 10ns resolution advertized: sending a PWM with high level of 3V3 and low of 0, the signal pulse is clipped to 1V8 unless the pulse is veeery large.
Anyone else observed that?
The doc states it won't work without the additional board but I can't believe it. Anyone has insight on why?

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redpitaya
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Re: Logic Analyzer Pro resolution

Post by redpitaya » Wed Mar 29, 2017 9:17 am

Hi,
can you please confirm that your sampling rate is set to 125Msps?
If this is not the case, we will investigate what could be the problem and let you know.
kind regards, Red Pitaya team

arnaudrichard
Posts: 8
Joined: Mon Jul 25, 2016 7:59 am

Re: Logic Analyzer Pro resolution

Post by arnaudrichard » Wed Mar 29, 2017 9:20 am

Yes resolution is set to 125Msps (in the webapp).

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redpitaya
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Re: Logic Analyzer Pro resolution

Post by redpitaya » Thu Apr 20, 2017 10:45 am

Hi,

For using LA pro application on the STEMlab 125-14 the LA fronted is required.
With the LA fronted maximum sampling rate (125MS/s) is guaranteed.
http://redpitaya.readthedocs.io/en/late ... onnections

Kind Regards, Zumy

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