LCP540xx to LPC546xx - Project compatibility

[mareikeED]

Hello,

We have used the LPC54005 processor in one of our products. Due to the sometimes low availability, we would like to use the pin compatible processors such as the LPC54606 with the same program code.

I have read that the processors of the LPC546xx and LPC54(S)0xx series are pin to pin compatible. Now the question is whether they are also project compatible.

For testing, I have created a project in MCUXpresso for the LPC54005 processor that only flashes one LED.
When I load this project on the processor LPC54606, it does not work.

I have already tried to enter the memory under MCU Settings in the same way as for a project for the LPC54606, but that didn't help either.

Maybe someone has an idea how to get a project running on the other series?

Many thanks and best regards
Mareike

[Alice_Yang · Accepted solution]

Hello @mareikeED

There is no internal flash with LPC540xx, while LPC546xx includes internal flash.

So it it hard to directly run on LPC54606. 

BR

Alice

[mareikeED]

Hello Alice,
Thank you very much for your answer!
Yes, it is really hard.

I did a lot of testing again today. An MCUXpresso project for an LPC540xx does not enable the flash, so the code will not run on an LPC546xx series processor.
Conversely, an MCUXpresso project for an LPC546xx series processor expects flash and will not run on a processor without it.

I will have to find another solution.
Best regards
Mareike