Unable to program RW610-based custom board with External Flash

[snjy]

I have a custom dev board based on the RW610 chip. I am trying to write firmware using a Jlink adapter from the FRDM-RW612 board (will eventuallly shift to MCU-Link).

For some reason, the default memory config with only ram declared at address 0x0 for size 0x130000 works normally in debug mode. But as soon as I add external flash address to the memory configuration, it stops working. Even the memory monitor doesnt show any data on the whole range.

I have attached a screenshots of one of the ranges i tried.

[Christine_Li]

Hi, @snjy 

Do you forget to share to me you screenshot?

If you can provide me more details related to this issue, we can provide you better support.

Best regards,

Christine.

[Christine_Li]

Hi, @snjy 

Do you forget to share to me you screenshot?

If you can provide me more details related to this issue, we can provide you better support.

Best regards,

Christine.

[snjy]

My bad!

Sorry, I will add those here.

Also, I think I might know the issue. I am using a Spansion S25FL256L which is not directly supported. I have requested for AN13869 document that provides more insight on how to add a new flash.

I have looked into https://github.com/nxp-appcodehub/an-frdmrw612-module-migration-guide?tab=readme-ov-file and deduced that I would need to create a new memory config for my board to work with the RW610.

Alternatively if you think that something similar already exists, please guide me.