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MQX Memory Direct Access ISSUE

Question asked by sungho kim on Mar 24, 2015
Latest reply on Mar 30, 2015 by alejandrolozano

Hi, This is Sungho from South Korea.

I`m using 'i.mx6sx-sdb' board to build some application with PURE MQX BSP/PSP library(with no config modifications).

I`m wondering why Direct Memory Accessing to peripherals makes  'MQX_AUTO_START_TASK' attributed Task stop...(may jumped to some exception handler...)

I didn`t set MQX_ENABLE_USER_MODE <= this #define when copmpiled with bsp.a/psp.a  

 

Is this MPU related issue? or Privileged Mode related issue? or RDC issue? or Clock Source Configure issue?

Memory Access Code is like this........reg = *(uint32_t *)0x020A8000;

 

Regarding MPU and Privileged Mode,

I searched all the BSP code but could not find the MPU configuration section.

 

Need a Help...please

 

Any replies will be appreciated.

Thanks.

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