How to Increase Interrupt Stack Size

[davidzhou]

Hi,

I have K60 Towerboard, _K60P144M150SF3RM, with MQX4.2, and CodeWarrior 10.6.4.

I debugged into my code and interrupt stack is 78% usage. And Occasionally stack gets overflowed. I want to increase interrupt stack size for safety. But using PE, it seems to me it is not enabled to increase it:

Is anyway to enable it? or Is there anyway I can directly change the stack size params before I recompile bsp?

Thank You

David Zhou

[BlackNight]

Hi David,

it is because 'generate linker file' is set to 'no'. Not sure why you have this, but I think it is because you are using MQX, and with MQX the linker files are done differently?

In any case, you should be able to edit the linker (.ld) file manually.

Erich

[davidzhou]

Hi Erich,

I think the linker file (.ld) is created and editable if project is bare-board (without MQX).

But if an MQX4.2 project is created through the wizard, the linker file is not under the list of the project files.

Really, the question is how to increase the stack size for the MQX.4.2 project.

Thank you,

David Zhou

[danielchen]

Hi David:

For bare mental, there is only one task, you can change this attribute in CPU component.

For RTOS environment, each task has it's individual stack size. For MQX, the stack size is set by MQX task template list

if your task is created by task component, for example, MQX lite task, it can be changed with PE. Please see the below picture.

Regards

Daniel

[davidzhou]

Hi Daniel,

The question is how to increase stack size for interrupts (under Processors) , not tasks:

Thank you,

David Zhou

[danielchen · Accepted solution]

Hi David:

For interrupt stack size,  I would suggest you can try to modify the link file directly

C:\Freescale\Freescale_MQX_4_2\mqx\source\bsp\twrk60d100m\gcc_cw\inflash.ld

    __DEFAULT_INTERRUPT_STACK_SIZE = 1024;

Regards

Daniel

[davidzhou]

Thank you Daniel !

David Zhou