MPC5604B clock problem

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MPC5604B clock problem

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yankuang1
Contributor III

I wrote the code to my board, when the project single-step debug, the board runs normally. However, if running at full speed, the external clock signal will become the waveform shown below。pastedImage_1.png

I want to know what will causes the clock output to be like this。My clock circuit as shown below

pastedImage_2.png

1 Reply

398 Views
davidtosenovjan
NXP TechSupport
NXP TechSupport

Hi, what is the frequency of used crystal?

Btw: 1MOhm parallel is not supposed to be there.