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[MPC5675K]-How to find the memory area which will not be cached and how to disable caching for this area

Question asked by yachuan liu on Jun 3, 2016
Latest reply on Jun 3, 2016 by yachuan liu

Hello everyone

I'm once given the advise that “You can choose part of the RAM memory, which will not be cached. So find the memory area, which is used by FEC and disable caching for this area” on the question “The FEC can't clear the R bit in the TxBD on MPC5675K ".

(Here is the weblink https://community.nxp.com/thread/394058)

I have studied the MMU and Cache chapter in the e200 core training relevant manual given by Martin  carefully. And I have understood how they work and how to use them. But I still don’t know how to find the memory area which is used by FEC and how to disable caching for this area (there isn't the information in that document).

So can you give me some advise? I have been stuck in this for two weeks. I really have tried all my mays to solve this problem but still don't know how to conquer it.

Thank you very very much for your help.

Best regards.

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