How to setup an interrupt stack in internal RAM of Coldfire MCF52277?

lumen — Wed, 04 Feb 2015 09:52:21 GMT

I would like to define an interrupt stack in the internal RAM with the following structure:

const MQX_INITIALIZATION_STRUCT MQX_init_struct =

{

/* PROCESSOR_NUMBER */ BSP_DEFAULT_PROCESSOR_NUMBER,

/* START_OF_KERNEL_MEMORY */ BSP_DEFAULT_START_OF_KERNEL_MEMORY,

/* END_OF_KERNEL_MEMORY */ BSP_DEFAULT_END_OF_KERNEL_MEMORY,

/* INTERRUPT_STACK_SIZE */ BSP_DEFAULT_INTERRUPT_STACK_SIZE,

/* TASK_TEMPLATE_LIST */ MQX_template_list,

/* MQX_HARDWARE_INTERRUPT_LEVEL_MAX*/ BSP_DEFAULT_MQX_HARDWARE_INTERRUPT_LEVEL_MAX,

/* MAX_MSGPOOLS */ BSP_DEFAULT_MAX_MSGPOOLS,

/* MAX_MSGQS */ BSP_DEFAULT_MAX_MSGQS,

/* IO_CHANNEL */ BSP_DEFAULT_IO_CHANNEL,

/* IO_OPEN_MODE */ BSP_DEFAULT_IO_OPEN_MODE,

/* INTERRUPT_STACK_LOCATION */ BSP_DEFAULT_INTERRUPT_STACK_LOCATION

};

In the linker file the interrupt stack is located as follows:

# interrupt stack
    interrupt_stack (RW) : ORIGIN = 0x80010000, LENGTH = 0x0000F800
    end_of_is        (RW) : ORIGIN = 0x8001F7FF, LENGTH = 0x00000000

Is this setup correct? MQX is starting up and the stack seems to be initialized, but the interrupts are not working correctly. I have tested my code with default interrupt stack (external RAM) and this is working.

What is missing? Is the init of MQX correct?

Regards,

Patrick

Re: How to setup an interrupt stack in internal RAM of Coldfire MCF52277?

lumen — Wed, 04 Feb 2015 10:04:48 GMT

There was another issue in the declaration of the interrupts. The MQX init above is working.

Re: How to setup an interrupt stack in internal RAM of Coldfire MCF52277?

RadekS — Wed, 04 Feb 2015 15:06:55 GMT

Thank you for your note.

MQX Software SolutionsのトピックHow to setup an interrupt stack in internal RAM of Coldfire MCF52277?

How to setup an interrupt stack in internal RAM of Coldfire MCF52277?

Re: How to setup an interrupt stack in internal RAM of Coldfire MCF52277?

Re: How to setup an interrupt stack in internal RAM of Coldfire MCF52277?