MPC5604 IPWM

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MPC5604 IPWM

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zhouhuiying
Contributor I

Hello,

when i use IPWM module, with the 25% input pulse, the capture pulse width sometimes is 75% or otherwise 25%.

How could this happen? What can i do about it?

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PetrS
NXP TechSupport
NXP TechSupport

Hi,

This should not happen if the reading of A[n] register is followed by B[n] reading, this always provides coherent data.

Or the counter bus overflow happens and pulse width is not properly calculated.     

BR, Petr

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