etpu,mpc5775b

[Fly213]

Hi everyone:

I want to use etpu module to collect pwm,
But when I reuse the pin as etpu, my pin input is close to 0V (pwm with a peak value of 400mV), which was originally a peak value of 3.36V V..
I'm not sure what happened, so I'll ask you for help. If possible, please share an eTPU capture routine suitable for mpc5775.

Thanks,

Best Regards

[petervlna · Accepted solution]

Hello,

my pin input is close to 0V (pwm with a peak value of 400mV), which was originally a peak value of 3.36V V..

This is a bit strange as MPC5775B does not have an eTPU module.

best regards,

Peter

PS: I have check with eTPU expert an no example code is available for capture function.

[Fly213]

Thank you very much for your reply,
I was curious why my processor expert didn't have the configuration of eTPU, so I used the program of 5775e, but why can I use the eTPU program of 5775e to output pwm at 5775b?
There may be a problem here that I can't understand, but it doesn't matter.
Thank you again for your reply, which makes me not dwell on it any more.