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More than 8 Analog Inputs on PSOC4 (CY8C4245) | Cypress Semiconductor

More than 8 Analog Inputs on PSOC4 (CY8C4245)

Summary: 1 Reply, Latest post by vsrs on 04 Nov 2016 09:22 AM PDT
Verified Answers: 1
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Hi all,

similar to the problem mentioned here (

is mine...

I need about 13 analog inputs (11 single sides , one differntial), see attached project.

I build an application using the seq SAR_ADC an an AMuxHW. The project compiles without an error. The software is running.

On the terminal I can read the values, but they behave strange and are not meaningful.

All values via the mux are nearly the same and seem to depend on the voltage of P2.6/P2.7 (diff input).

I tried several combinations, like only one input of the SAR-ADC, but it seems to me that the AMuxHW is not working proberbly.

I even added an analog output (TAnalog). By switching the inputs, I expected a change on that signal - nothing..

Anyone, any ideas ;-)

Is there a restriction of the analog system, using the SAR-ADC and more than 8 inputs ???

Greetings (from germany)



vsrs's picture
Cypress Employee
105 posts

Hi Alexander,

The code is missing Opamp_1_Start() statement. Could you please check whether it is working after adding it ?


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