MPC5643L FlexPWM Capture

zcc890406 — Wed, 30 Nov 2016 12:20:39 GMT

Hi sir,

I am a new to use the function of FlexPWM capture about MPC5643L. In the process of using, I had a promblem.

I use the PIN of D3 (A[3]) as the input port to capture the signal，but every time signal capture faild. I have already achieced capture use the x[n]. who knows what is the difference between capture A/B[n] and capture x[n] .Thank you can provide source code and some information.

In the chip reference manual pin function table, I discover that this pin has a capture function. The following is a screenshot of my list from the chip reference manual .

The chip reference manual shows that flexPWM_0 about A [3] has a capture function. Now I do not know how to do it.

thank you very much for your help.

Tomas

Re: MPC5643L FlexPWM Capture

PetrS — Wed, 30 Nov 2016 16:30:52 GMT

Hi Tomas,

Yes, the Table 3-5 shows input functions for A and B pins and there could be this options in SIUL module.

However the input capture feature is not implemented on A and B pins on the MPC5643L’s FlexPWM module. And there is no control registers for capture feature on PWMA[n] and PWMB[n].

Only the PWM[X] can be used for this feature and capture control registers are available for PWM[X] pin.

BR, Petr

MPC5xxxのトピックMPC5643L FlexPWM Capture

MPC5643L FlexPWM Capture

Re: MPC5643L FlexPWM Capture