topic Erase 2nd flash using JLink in i.MX RT Crossover MCUs

Erase 2nd flash using JLink

bp1979 — Thu, 14 Mar 2024 12:12:23 GMT

Hi,

We are using a second flash on a custom board using an IMX RT 1024 chip.

We run our firmware from flash1, connected to FlexSPI port A1

We use this second as storage device, connected to FlexSPI port B1.

Everything works fine from software point of view. But we are unable to erase second flash using JLink.

J-Link>erase 0x60400000,0x60500000 'erase': Performing implicit reset & halt of MCU. ResetTarget() start ResetTarget() end - Took 121ms AfterResetTarget() start AfterResetTarget() end - Took 468us Erasing selected range... J-Link: Flash download: No Flash bank within given address range 0x60400000, 0x60500000 Erasing done.

Is there a way to configure JLink in such a way that it understands that there is another flash connected to FlexSPI B1?

I assume I also need to configure lookup tables so that JLink knows how to erase sectors/blocks/chip.

Any guidance would be appreciated

Re: Erase 2nd flash using JLink

nxf77486 — Fri, 22 Mar 2024 22:34:19 GMT

Hello,

Thank you for contacting NXP support.

Please find the following community post that has a similar query regarding the erase of the FlexSPI B1.

And please let me know if you have another question where I can help you.

Re: Erase 2nd flash using JLink

bp1979 — Fri, 29 Mar 2024 10:14:11 GMT

@nxf77486

That's a very strange answer if I may say so.

First of all, you are referring to my own question.

Second of all, the linked Q&A has nothing to do with this question (except that they are both about "flash2").

My problem is that we are unable to erase flash2 through JLink.

Could you please explain how we should configure JLinkExe / JFlash / whatever to be able to erase the second flash connected to B1 from JLink?

Re: Erase 2nd flash using JLink

nxf77486 — Wed, 10 Apr 2024 20:34:28 GMT

Hello,

We currently do not have a document that specify this information, but I think the following Application Note can reach what you are currently looking for.

Please let me know if you found this application note useful.