KE18F TRGMUX FTM Fault Control

[sean_dvorscak]

I am trying to get a better understanding of the FTMx_FAULT[0:2] signals shown in the picture below:

What I want to know is what the purpose of using the TRGMUX as fault inputs.  I understand that the TRGMUX triggers can be configured to be a lot of different events, but I don't understand why you would use those events as "fault" controls.  Is there another purpose for the TRGMUX outputs to the FTM?

The reference manual seems pretty vague on this stuff.  Any other information will help.  Thank you.

[jingpan]

Hi sean,

The TRGMUX is described in charpter 10 in RM. There is a table in page 159 lists all the trig source. I think the most useful sources among these items is TRGMUX_INx and CMPx_OUT. TRGMUX_INx is from 8 IO pin. It can expand the Fault pin candidate. CMPx_OUT is from comparator. This is also useful in some applications.

Regards,

Jing