CapSense multi-frequency and external clock

[mihi_4624776]

I want to use CapSense Multi-Frequency and LIN communication at the same time.

If Multi-Frequency is enabled, IMO accuracy will be reduced and an error will occur in LIN communication.

Is it possible to avoid the influence on LIN communication by using an external clock?

[BragadeeshV · Accepted solution]

Hi @mihi_4624776 , You can have only clock at the same time (either IMO or External clock). If you want to use CapSense with MFS enabled and still use LIN communication, you can change the type of MFS used. By default, the IMO is modified to change the sense clock frequency.  We have one another method where it changes the sense clock divider values to change the sense clock frequency of different channels. Please find the attached doc that details how to change the Type of MFS used to sense clock method. Please let us know if you have any questions.

[mihi_4624776]

I will try that method.
Thank you.