i.MX ProcessorsのトピックRe: Lock TCM using RDC on iMX7d

Lock TCM using RDC on iMX7d

chandiniindavar — Tue, 29 Jan 2019 15:21:44 GMT

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

Re: Lock TCM using RDC on iMX7d

igorpadykov — Tue, 29 Jan 2019 23:09:57 GMT

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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Re: Lock TCM using RDC on iMX7d

chandiniindavar — Wed, 30 Jan 2019 10:14:43 GMT

Hi igor

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

Thank you

Chandini

Re: Lock TCM using RDC on iMX7d

igorpadykov — Wed, 30 Jan 2019 10:37:43 GMT

for TCM one can check presentation slide 46

i.MX 7D with FreeRTOS

Best regards
igor