Capsense System VDDA voltage

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alma_284856
Level 3
Level 3
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Hi everyone,

   

I'm using capsens with 2 channels 28 capsenses.

   

For my application I need to use Vdac 125 --> 2V and Current qsource 32uA

   

When I compile I have a warning that i don't understand.

   

I"m using a PSOC 5 with a 3.3v supply, so if I use 2V Vdac I am normaly in the range.

   

 

   

Thank you

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rola_264706
Level 8
Level 8
50 likes received 25 likes received 10 likes received
        Please post your project.   
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HeLi_263931
Level 8
Level 8
100 solutions authored 50 solutions authored 25 solutions authored

What you see is not a warning, just a notice. The DAC thats used by the CapSense component has a range of 0-4.08V (which is hardwired). So with a Vdda of 3.3V you get the notice that you cannot use the full range. Since you don't need it, its not relevant for you.

   

The actual warning that you get is that the variable 'whoami' is not used in your code (so its probably never read).

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