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PSoC 4 MCU

New Contributor II

I am working with the PSoC 4000s Prototyping Kit and want to convert the RawCount readings from CapSense back to capacitance values. Using the given formula requires a knowledge of the Imod value, which I cannot find. Any help is much appreciated!

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Moderator
Moderator

Imod is sourced from the internal IDAC. In CapSense Component configuration GUI, you can configure Modulator IDAC and Compensation IDAC manually. If you are reading AN85951, Table 3-1 shows the Imod description. And for CapSense CSD v3.x/4.x/5.x, the unit of IDAC is 2.4uA/bit by default.

pastedImage_0.png

Thanks,

Ryan

View solution in original post

1 Reply
Moderator
Moderator

Imod is sourced from the internal IDAC. In CapSense Component configuration GUI, you can configure Modulator IDAC and Compensation IDAC manually. If you are reading AN85951, Table 3-1 shows the Imod description. And for CapSense CSD v3.x/4.x/5.x, the unit of IDAC is 2.4uA/bit by default.

pastedImage_0.png

Thanks,

Ryan

View solution in original post