Forums - AioDrive of one pin floats other pin(s)

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AioDrive of one pin floats other pin(s)
Alan
Join Date: 30 Jun 16
Posts: 14
Posted: Tue, 2016-09-06 13:19

Not sure if this is the correct forum for apparent SDK issues, please advise.

Extremely simple code example:

testValue = 0;

AioDrive(AIO0,testValue);

AioDrive(AIO1,testValue);

Here is what happens:

  1. When the first AioDrive completes, the pin AIO(0) is driven to 0.
  2. When the second AioDrive completes, the pin AIO(0) goes to floating.

Why?  There must be a way to drive more than one analog output pin at a time?

 

 

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Dr. Nissim Zur
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Join Date: 6 Jun 16
Location: Skype: nissim.test CSR1010 External design house
Posts: 235
Posted: Thu, 2016-09-08 10:58

I believe there is only one inner hardware for A2D and D2A.
So you can't do 3 outputs. or 3 AIO input.

Moreover, if you do  D2A and then do one AIO read. the output disappeared !

 I just test that. 
 


 

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Alan
Join Date: 30 Jun 16
Posts: 14
Posted: Wed, 2016-09-07 11:01

Well, that is rather unfortunate.  I think I can make this project work, but I was expecting much more from the chipset.

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Dr. Nissim Zur
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Join Date: 6 Jun 16
Location: Skype: nissim.test CSR1010 External design house
Posts: 235
Posted: Thu, 2016-09-08 10:56

call my Skype nissim.test , maybe we can find some creative way to overcome that limitation. 

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