Connect 1.024 Reference to AMUX.

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Anonymous
Not applicable

I am sending the V_REF(1.024V) out through an analog pin buffered by an Opamp.

   

I am also measuring the output of the Opamp by the ADC_DelSig.

   

This works fine. But now I want to bypass the opamp to measure the V_REF directly. This is done because I want to know the Offset and Gain of the Opamp to do an error correction!

   

I want to do this on Run-Time because of temperature drift! Therefore I need an AMUX to switch between Opamp yes or not!

   

Is it possible to route PSoC's internal reference (1.024V) to AMUX?

   

There is always this error:

   

Voltage Reference Warning: Vref '' is connected to terminal 'AinTerm1' of 'AMux_1' but no direct hardware connection exists.

   

regards Willi

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5 Replies
ETRO_SSN583
Level 9
Level 9
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I compiled this error free in Creator 2.2, SP1 -

   

 

   

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ETRO_SSN583
Level 9
Level 9
250 likes received 100 sign-ins 5 likes given

I also tried it with a DelSig, it also compiled error free.

   

 

   

Regards, Dana.

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Anonymous
Not applicable

So, it is Creator 1.0 's fault , again!

   

Thanks for your reply!

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HeLi_263931
Level 8
Level 8
100 solutions authored 50 solutions authored 25 solutions authored

Creator 1.0 is rather old. You really should upgrade your PSoC5-Kit with a 5LP one, and the upgrade to Creator 2.2 to get all the neat stuff...

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ETRO_SSN583
Level 9
Level 9
250 likes received 100 sign-ins 5 likes given

You might contact local FAE/Cypress Regional Sales Manager/Manufacturers Rep

   

and explain that your older board/silicon is affecting your ability to get design done.

   

Maybe get an upgrade. There is a program to update free of charge for some boards,

   

it may no longer be active, but take a look at link - www.cypress.com/

   

 

   

Regards, Dana.

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