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Questions Porting FreeRTOS to AT91RM9200

Posted by Richard Dinoso on August 25, 2009
Hello,

I am new to this, and I have a couple of questions.

I am using the Atmel AT91SAM9XE using IAR demo and porting that to our custom board with a AT91RM9200 microcontroller. I am following the guide in freertos.org titled "Modifying a FreeRTOS.org Demo".

1. Am I using the correct demo?
2. How do I change the demo so that it will use the correct pins on the AT91RM9200? The guide does not mention this part. For example, I want to use a UART on the AT91RM9200, but the UART pins on the AT91SAM9XE are different.

Thanks for any help.







RE: Questions Porting FreeRTOS to AT91RM9200

Posted by Richard on August 30, 2009
> 1. Am I using the correct demo?

That is probably the closest to what you want. I don't think there should be many differences if any.

>2. How do I change the demo so that it will use the correct pins on the AT91RM9200? The guide does not mention this part. For example, I want to use a UART on the AT91RM9200, but the UART pins on the AT91SAM9XE are different.

You say it is your own hardware so only you can know which pins are being used. You will have to look up the schematics for your hardware then change the initialisation code (UART, LEDs, etc.) if necessary.

Regards.


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