EMIF in FreeRTos

Abhijith,

Abhijith Raghavendra said:

when i call   _mpuInit_() funtion the controller hangs and will not come out this function .

If you have a debugger attached, you should be able to find out what the CPU is doing.   For example, has it taken an exception?

Without knowing this I can't give you any guidance other than a 'guess'.

My guess - if you are calling _mpuInit_() inside a task instead of  in main() then it may cause this sort of problem.
You need privilege to modify the MPU registers.    By default tasks don't run with privilege.

If you want to control the MPU settings on a per task basis FreeRTOS has the capability to do this by passing a structure w. MPU settings to the

xTaskCreateRestricted() function.   But you would configure this *before* you start the OS, in main where you are configuring the OS by creating tasks.  HalCoGen will make it so that this code in main() runs in system mode (which has privilege).