MCUXpresso GeneralのトピックRe: How to flash/boot an LPC4370 application to/from SPIFI (Embedded Artists' Labtool)

How to flash/boot an LPC4370 application to/from SPIFI (Embedded Artists' Labtool)

michelkuenemann — Sun, 22 May 2022 19:19:35 GMT

Hi all,

I am developing a modified version of the Labtool firmware.

The target is an LPClink2 board equipped with an LPC4370.

It runs perfectly and I want to boot the LPC4370 now from the SPIFI flash installed on the board.

What steps do I need to follow to achieve this ?

A similar question has already been asked in the passed, but it was based on LPCxpresso and the links are broken.

Thanks a lot.

Michel

Re: How to flash/boot an LPC4370 application to/from SPIFI (Embedded Artists' Labtool)

ZhangJennie — Mon, 23 May 2022 01:47:00 GMT

For LPC4370, MCUXpresso IDE and LPCXpresso IDE are the same thing. The code works on LPCXpresso is also for MCUXpresso.

But SPIFI boot must follow the right boot process. Please refer UM10503, Chapter 5, boot ROM.

We must follow the overall boot process

ZhangJennie_0-1653270057396.png

Because you use SPIFI boot, you need also use SPIFI boot process.

ZhangJennie_1-1653270156233.png

Here In Fig 20, Detect device means if it can be able to read a valid device ID for the external QSPI device. If not being able to read out correct device ID ( all 0 or all 1), it’s device error.

Fig 20, there is “see main boot flow”, it should point to Fig 16, after “SPIFI Boot”.

Thanks,

Jun Zhang

Re: How to flash/boot an LPC4370 application to/from SPIFI (Embedded Artists' Labtool)

michelkuenemann — Mon, 23 May 2022 07:50:29 GMT

Hi Jun,

Thank you so much for your prompt and relevant reply.

Besides the boot process itself you have described, I am currently struggling on how to configure my MCUxpresso project to setup and write to the external flash.

Is there somewhere a basic example project that implements both RAM and SPIFI methods ?

If not, which changes do I have to make to the original Labtool firmware project and/or source code to support SPIFI ?

Thank you - regards,

Michel

Re: How to flash/boot an LPC4370 application to/from SPIFI (Embedded Artists' Labtool)

ZhangJennie — Tue, 24 May 2022 12:17:41 GMT

Michel

I recommend you referring this post on Using the SPIFI library with the LPC4370

https://community.nxp.com/t5/LPC-Microcontrollers-Knowledge/Using-the-SPIFI-library-with-the-LPC4370/ta-p/1102995

Hope this will help you.

Jun Zhang

Re: How to flash/boot an LPC4370 application to/from SPIFI (Embedded Artists' Labtool)

michelkuenemann — Wed, 25 May 2022 05:08:58 GMT

Hi Jun,

Thanks for this link. At a first glance it looks like it answers to my questions. I will dig into it soon.

Regards,

Michel