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Changing MCU from LPC54S018J4M to LPC54S018J2M in MCUXpresso

Hi everybody,

I developed a project with MCUXpresso using the evaluation board for above mentioned MCUs.

The eval board carries a LPC54S018J4M and my custom board carries the LPC54S018J2M which is essentially the same except the different size of the flash memory (2 / 4 MB)

I compared the startup files in SDKs for both processors and they're exactly the same, i.e. both have the SPI descriptor for 4MB flash inside

/* SPI Descriptor - Winbond W25Q32JV */

Is it safe to just change the memory size in the Memory Details, first line, from 0x400000 to 0x200000?

hfuhruhurr_0-1782720819895.png


Best regards,

Rainer


Re: Changing MCU from LPC54S018J4M to LPC54S018J2M in MCUXpresso

Hi @hfuhruhurr 

Thank you for the post!

The recommendation always will be to select the specific device/package you are using in your project. 

Please create a new project, select the correct device package, and then copy your existing source files, project settings, and configurations into the new project.

This will help ensure that all device-specific settings are generated correctly for the selected package and may resolve any configuration-related issues.

carlos_o_1-1782765666085.png

Also, you could change the MCU selected: How to Change MCU with MCUXpresso

Hope this information helps!

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