I am now reading mqx sourcecode, and find MQX seems like don't support virtual memory for coldfire V4e(for example MCF54455)and powerpc MPU which have MMU.
when do task switch, is it need to do cache refresh?
MQX does not support virtual memory.
Cache refresh in the scheduler- what do you mean by 'refresh' cache? Instruction cache can be only flushed (invalidated).
sorry, I mean just flush cache
Retrieving data ...