How to Change MCU with MCUXpresso

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How to Change MCU with MCUXpresso

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How to Change MCU with MCUXpresso

Recently I found some customers have a bit of problem when porting project from one MCU to another, so this article using simple steps demonstrates how to change MCU with MCUXpresso. There is also a video demonstrated the detail steps in attachment.

Pay attention, as MCUXpresso User Guide says: All projects are associated with a particular MCU at creation time. The target MCU determines the project memory layout, startup code, LinkServer flash driver, libraries, supporting sources,launch configuration options etc. etc. so changing a project’s associated MCU should not be undertaken unless you have a total grasp of the consequence of this change. Therefore rather than changing a project’s associated MCU, it is strongly recommended that instead a new project is generated for the desired MCU and this new project is edited as required.

However, on occasion it may be expedient to reset a project’s MCU (and associated SDK) and this can be achieved as follows. For example, changing lpc55s69 to lpc55s06, we need install SDKs for lpc55s69 and lpc55s06 before all the below steps.

1 - Change MCU & Package

1.1 – Change MCU

Right click “MCU” under Project tree, choose “Edit MCU”

Alice_Yang_0-1627442238840.png

Uncheck ”Preserve memory configuration”(it is checked by default)->choose LPC55S06->there is a warning, choose Yes.

Alice_Yang_1-1627442319505.png

We can see the Memory details changed to lpc55s06, then click ”Apply and close”.

1.2 – Change Package

Alice_Yang_2-1627442363050.png

2 - Change Compiler Definitions

In Properties view->Settings->MCU Compiler ->Preprocessor, change the definition for CPU from LPC55S69JBD100 to LPC55S06JBD64 as below:

Alice_Yang_3-1627442471807.png

3 – Change/add SDK driver for LPC55s06

Selected project, then click ”Manage SDK components”, choose the drivers our application used, for example, clock, power, usart.

Alice_Yang_4-1627442521094.png

Alice_Yang_6-1627442556603.png

Click “OK”, then click “Yes” to update.

Alice_Yang_7-1627442569628.png

Delete LPC55S69 device related files:

Alice_Yang_0-1636704852972.png

Add “system_LPC55S06.c” and “system_LPC55S06.h” files:

Alice_Yang_9-1627442604431.png

4 - Change startup file.

Delete LPC55s69 startup files, add “startup_lpc55s06.c”, we can find the startup file in any SDK demo.

Alice_Yang_10-1627442631217.png

5 - Change board related files.

Refer to our own new board, change files under “board” folder, for example pins, uart number, here directly copy from SDK demo for LPCxpresso55s06 board.

Alice_Yang_12-1627442675241.png

6 - Test the project  function with new board

Build project until no compile error, download and run it, result as below.

Alice_Yang_11-1627442661014.png

 

 

 

 

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Last update:
‎11-12-2021 01:17 AM
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