Lock TCM using RDC on iMX7d

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Lock TCM using RDC on iMX7d

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chandiniindavar
Contributor IV

Hi 

i am trying to lock down TCM using RDC for M4 so that A7 cant access memory , is it possible ?

As i am running M4 it opens access for A7 but i dont want that .

Could please anyone tell me is it possible ? and How we can do that ?

NOTE :

I have already checked in FreeRTOS_BSP_i.MX_7Dual_API_Reference_Manual.pdf , i cant find any info

Thank you

Chandini

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igorpadykov
NXP Employee
NXP Employee

Hi Chandini

aavailable memories with domain access permissions are described in

sect.3.2.4.3 Memory Region Map i.MX7D Reference Manual

and one can add necessary changes to code.

http://cache.nxp.com/files/32bit/doc/ref_manual/IMX7DRM.pdf

Best regards
igor
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chandiniindavar
Contributor IV

Hi igor

I cant see TCM in that memory table , that means we cant lock down using RDC ?

Thank you

Chandini

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igorpadykov
NXP Employee
NXP Employee

for TCM one can check presentation slide 46

i.MX 7D with FreeRTOS  

Best regards
igor

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