MPC5746 emios function consultation

[Anony]

I am using the emios module of mpc5746 to develop the PWM incoming signal acquisition function. How can I use a single channel to collect the frequency and duty cycle of PWM signal at the same time?Is there a corresponding example project for reference?

[PetrS · Accepted solution]

Hi,

if you want to use single channel then you will probably need to utilize SAIC mode to capture both edges and read consecutive 3 edges to be able to get period/duty. But a polarity could be issue, unless UCIN is read with saved value.
If 2 channels can be used then you can refer to below code 
https://community.nxp.com/t5/MPC5xxx-Knowledge-Base/Example-MPC5646C-eMIOS-frequency-measurement-CW2...

BR, Petr