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MCF5485 instruction cache enable

Question asked by Damien Guiserix on Nov 10, 2015



I'm trying to enable the instruction cache on my software running on MCF5485 coldfire to speed up operation.


When I run my software using codewarrior debug in SDRAM, it 's working well but when i want to load my software to run in flash nothing is working and the program is stuck.


So I've created a very simple program switch on LED wait switch off LED and for the moment same result.

I enable the cache using thee following:

move.l #0x00008100, D0

movec D0,CACR


Can you please help me?

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