topic Re: MCUXpresso Memory placement Error in MCUXpresso IDE

MCUXpresso Memory placement Error

remibusseuil — Mon, 13 Jan 2025 19:46:54 GMT

Hi All

I am having an issue with the memory mapping in MCUXpresso. I am using an LPC4088 and external flash and external RAM.

I am following the instructions of the MCUXPresso manual :

Setting the memory allocation and flash drivers

I declare my RAM using __DATA(RAM3)

And my External flash using __TEXT(EXT_FLASH)

Somehow when I compile the program the linker puts the data of the external RAM in the external RAM AND in the internal flash...

I am out of ideas on why it happens... Is this a bug? is this memory allocation actually working in the first place?

Thanks for your help

Remi

Re: MCUXpresso Memory placement Error

remibusseuil — Mon, 13 Jan 2025 19:51:57 GMT

To make it clear here i set an array bigger than the flash memory but smaller than the external RAM and the program cannot compile because it copies the memory of the RAM in the flash.........

Re: MCUXpresso Memory placement Error

remibusseuil — Mon, 13 Jan 2025 20:56:03 GMT

additionnally I run into the problem of the memory allocation does not persist after a restart of MCUxpresso:

Really what is happening? is this a pre pre alpha release?

Re: MCUXpresso Memory placement Error

Habib_MS — Fri, 17 Jan 2025 21:32:03 GMT

Hello @remibusseuil,
I followed the chapter 7 called "Creating New Projects using Pre-Installed Part Support" in the MCUXpresso IDE User Guide, and It works correctly, however I get the same error, when I close the project the memory regions defined disappears, this is because the linker file is not configured with the new regions. I will ask internally in order to obtain more information. Please take in mind that it could be a few days, thank you for your patience.
BR
Habib.

Re: MCUXpresso Memory placement Error

Habib_MS — Sat, 08 Feb 2025 01:29:43 GMT

Hello @remibusseuil,

I still working in this issue, but I cannot solve it. However, if you import an LPCopen example you can configure more memory sections without problems.

BR
Habib

Re: MCUXpresso Memory placement Error

Habib_MS — Tue, 25 Feb 2025 22:55:46 GMT

Hello @remibusseuil,

Could you try open MCUxpresso as admin in order to see if it solves the issue?

BR
Habib

Re: MCUXpresso Memory placement Error

remibusseuil — Tue, 25 Feb 2025 22:55:02 GMT

Thanks!

Re: MCUXpresso Memory placement Error

Habib_MS — Fri, 28 Feb 2025 20:37:01 GMT

Hello @remibusseuil,
Did you solve the issue?
BR
Habib

Re: MCUXpresso Memory placement Error

remibusseuil — Fri, 28 Feb 2025 20:54:40 GMT

Hi No it is still a big issue

Re: MCUXpresso Memory placement Error

Habib_MS — Sat, 22 Mar 2025 00:54:10 GMT

Hello @remibusseuil,

In order to add new FLASH, you can follow two ways:

1. Via MCU settings:

Create a new RAM/FLASH in MCU settings, properties->C/C++ build->MCU settings:

Click on Refresh MCU cache:

Click on apply and close:

2. Click on Edit memory in Project settings->memory->Edit memory:

Add a new FLASH and press OK :

Finally, are you currently experiencing any other problems?

If the response is yes, do not hesitate to let me know

BR
Habib.