i.MX ProcessorsのトピックWhere CM4_ALIAS_CODE alias DDR?

Where CM4_ALIAS_CODE alias DDR?

Takashi_Kashiwagi — Mon, 03 Feb 2020 15:51:05 GMT

Hi Community.

I saw RM and noticed. CM4F core in IMX8MM has CM4 ALIAS Code Region(262016KB).

I want to kown which DDR area does map the CM4 ALIAS Code.

Now, Our firmware is running on DDR(0x7F000000 - 0x80000000).

Can this be mapped to 0x10000000-?

By the way, breakpoints in the debugger are behaving strangely, as in the next thread.

https://community.nxp.com/message/1254243?commentID=1254243#comment-1254243

Best Regards,

T.Kashiwagi

Re: Where CM4_ALIAS_CODE alias DDR?

igorpadykov — Wed, 05 Feb 2020 05:09:42 GMT

Hi Takashi

seems it is aliased to 8000_0000 - 8FFE_FFFF.

I am afraid it is not possible to remap to 0x10000000.

Best regards
igor
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Re: Where CM4_ALIAS_CODE alias DDR?

Takashi_Kashiwagi — Wed, 05 Feb 2020 07:35:23 GMT

Hi Igor-san

Thank you for reply.

seems it is aliased to 8000_0000 - 8FFE_FFFF.
I am afraid it is not possible to remap to 0x10000000.

Is this aliased address(8000_0000 - 8FFE_FFFF) really fixed?

Our SoM has only 1GB Memory(0x40000000 - 0x7FFFFFFF)........

Best Regards,

T.Kashiwagi

Re: Where CM4_ALIAS_CODE alias DDR?

igorpadykov — Tue, 13 Oct 2020 00:47:38 GMT

Hi Takashi

yes alias is fixed.

Corrected:

As answered on other post the alias maps to 0x40000000.

So "correct answer" on this post was changed.

Thanks Renato !

Best regards
igor

Re: Where CM4_ALIAS_CODE alias DDR?

Takashi_Kashiwagi — Wed, 05 Feb 2020 09:00:38 GMT

Hi Igor-san

Thank you.....

Re: Where CM4_ALIAS_CODE alias DDR?

nxf56472 — Mon, 12 Oct 2020 16:03:06 GMT

Hello @igorpadykov ,

According to your other post the alias maps to 0x40000000.

Please fix the "correct answer" on this post.

Thanks!

Renato