K358 160MHz works fine, but not 240MHz

[allenlw]

    We test our project on our own demo board, when we set the core clock to 160MHz, it runs fine with GPT module ( just to toggle a LED light ), but when we set the core clock to 240MHz, it can't run properly, in can only run with this function (Mcu_DistributePllClock()) blocked.

    But we can run the project with 240MHz fine on the NXP official demo board.

    What do you think is the problem or which aspect we should look into?

[Senlent]

Hi@allenlw

If the same project can only run on the official NXP demo board, then I think the possible problem lies in the hardware. You can check the external crystal oscillator on your board and compare the difference with the official board.

[allenlw]

We tried move our demo's crystal oscillator to the official demo, no problem. But we moved the official demo's to our demo, still not working. Still trying to find the solution.

[Senlent]

Hi@allenlw

Can you provide more information, such as your hardware schematic and test routines?
You can send me a private message and I will help you double check it.