Hi.

I searched a way of porting for RM57L843 and found it. The ways is it porting Cortex-R4 is similar with it so modify it.. I used FreeRTOS on RM48 before. So I tried it but I think it is not finished completely.. because it works strangly a little. My system works if I make two simple task. But only one task is run when they have same priorities. Scheduler is not start normally when I make a task, do more works. But it worked well previous system(RM48)

What files are needed change or revision? Especially, I don't know how can I make a sys_link.cmd file for memory allocation.

I use HALCoGen 4.0 of TI for making all of base files, then combine with OS files.

Please give me a tip for port for RM57.

I'm using FreeRTOS 8.0 and using Code Composer Studio 6.0.

Thank you.

But only one task is run when they have same priorities.

Lets start with a simple scenario and then increase the complexity to see at which point it stops behaving as it should.

Set configUSE_PREEMPTION to 0 in FreeRTOSConfig.h to stop the tick interrupt trying to switch between the two tasks.

Next create two task as follows:

volatile unint32_t ulTask1 = 0, ulTask2 = 0;

void vTask1( void *pvParameters )
{
    for( ;; )
    {
        ulTask1++;
        taskYIELD();
    }
}

void vTask2( void *pvParameters )
{
    for( ;; )
    {
        ulTask2++;
        taskYIELD();
    }
}

When you run this, do both tasks run? (do ulTask1 and ulTask2 both increment at the same rate).

If so, inspect xTickCount in the debugger - is that also incrementing?

Regards.

oh.. I'm sorry. My system cannot create a task.. because i tried to revise many things.

I will try your suggestion if it can create a task.

This is another question. Is it right to use RM48 cmd file(e.g. sys_link.cmd) for RM57?

RM57 has bigger memory..

I would assume you should use the correct file for the device you are using but you might get away with it with some wasted resources if the smaller chip is a subset of the larger.

Regards.

Hi. I found the problems and I fixed it. It works very well. Thank you for your help

Please upload your code to http://interactive.freertos.org thanks.

Regards.