topic XIP write flash support in i.MX RT Crossover MCUs

XIP write flash support

zaricchou — Sat, 11 Sep 2021 04:09:11 GMT

I am using RT1052 with a en25q16a which is a nor flash as a boot flash(connected to flexspi).Trying to place the bootloader and app in a en25q16a.But rom api earse operation could make the core in halt,while the initialization was successful.

Is there any suggestion to solve this problem?

Re: XIP write flash support

jeremyzhou — Mon, 13 Sep 2021 06:04:15 GMT

Hi,
Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
1) Is there any suggestion to solve this problem?
-- I'd like to suggest you use the FlexSPI drivers from the SDK library instead of the ROM API, further, it needs to relocate the driver into the RAM prior to calling them.
Have a great day,
TIC

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Re: XIP write flash support

zaricchou — Mon, 13 Sep 2021 09:24:24 GMT

I have changed to Flexspi drives , and relocating it to ram.

Now somethings new.

Init -------works

page program ----works

erase operation -------not halt the core ,but not works.

Re: XIP write flash support

jeremyzhou — Mon, 13 Sep 2021 10:41:27 GMT

Hi,
Thanks for your reply.
Do you mean the values in the flash area change nothing after erasing operation?
And I was wondering if you can upload the modified FlexSPI driver.
Have a great day,
TIC

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Re: XIP write flash support

zaricchou — Tue, 14 Sep 2021 00:37:42 GMT

yes , that was what I mean,

I would like to send you a whole project by email,can you post your email please?

Re: XIP write flash support

jeremyzhou — Tue, 14 Sep 2021 03:34:33 GMT

Hi,

Thanks for your reply.
I think you'd better upload the demo to the community, or share the download address if you upload it to some cloud drive platform.
Have a great day,
TIC

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Re: XIP write flash support

zaricchou — Tue, 14 Sep 2021 03:53:48 GMT

Re: XIP write flash support

jeremyzhou — Wed, 15 Sep 2021 03:02:38 GMT

Hi，
Thanks for your reply.
Please try to use the below command sequence instead of the previous one.

jeremyzhou_0-1631674942428.png

Have a great day,
TIC

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