i.MX Processors中的主题 Re: About OCRAM_S in i.MX7Solo

About OCRAM_S in i.MX7Solo

yuuki — Tue, 16 May 2017 06:19:41 GMT

Dear all,

i.MX7Solo has some OCRAM areas.

- 0094_0000 - 0094_7FFF: 32KB / OCRAM_PXP
- 0092_0000 - 0093_FFFF: 128KB / OCRAM_GP
- 0090_0000 - 0091_FFFF: 128KB / OCRAM 128KB
- 0018_0000 - 0018_7FFF: 32KB / OCRAM_S

I understood that OCRAM_PXP, OCRAM_GP and OCRAM 128KB could be used as Free Area.

(Reserved 46KB is excluded)

Can OCRAM_S be used as Free Area?

Best Regards,
Yuuki

Re: About OCRAM_S in i.MX7Solo

Yuri — Tue, 16 May 2017 07:14:44 GMT

Hello,

The OCRAM parts are available for customer use when the corresponding block is not used :

- on a part where the EPDC is not available(ie disabled) the EPDC OCRAM (for i.MX7D) is free for applications ;

- the memory, attached to the PXP, is user accessible if the PXP is not in use.

On i.MX7D/S, the boot vector for the M4 core is located at the start of the OCRAM_S, so it may be used for

other purposes, when no applications for CM4.

https://community.nxp.com/docs/DOC-331940

Have a great day,
Yuri

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Re: About OCRAM_S in i.MX7Solo

yuuki — Wed, 17 May 2017 01:12:22 GMT

Yuri‌

Dear Yuri-san,

Thank you for yoru information.

I clicked the URL.

However, I cannot access this URL.

Best Regards,

Yuuki

Re: About OCRAM_S in i.MX7Solo

Yuri — Wed, 17 May 2017 04:34:32 GMT

Hello Yuuki-san !

Sorry, it was internal link. Please refer to the note in section 3.1

(On-chip memory view from each ARM core on the i.MX 7Dual/7Solo)

of app note AN5317.

http://www.nxp.com/assets/documents/data/en/application-notes/AN5317.pdf

Regards,

Yuri.