MCUXpresso Memory placement Error

[remibusseuil]

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

[Habib_MS]

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

[Habib_MS]

Hello @remibusseuil,

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

BR
Habib

[remibusseuil]

Thanks!

[Habib_MS]

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

[remibusseuil]

Hi No it is still a big issue

[Habib_MS]

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.

[remibusseuil]

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?

[Habib_MS]

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.

[remibusseuil]

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.........