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FreeRtos with TM4C123GXL

praveen katari
Prodigy 30 points

HI

I am using the TM4C123GXL launchpad. I have downloaded the TivaWare_C_Series-1.1. There is an example project for freertos. I have loaded that into my launchpad and its working fine. 

Now I want to create a new project by my self to work with freertos. where I want to create few tasks related to SPI and some GPIO also TIMERS .

please can you guide me to do that.

Thanks & Regards

praveen.k 

  • 0
    Intellectual 500 points

    Hey,

    actually, the example project is made for you to create your own application from it. Why don't you use that as starting point?

    Starting everything from scratch would just utterly slow you down. Timers and Interrupts are a delicate topic in RTOS by the way. You might want to start by reading into FreeRTOS itself.

    There are documentations around but you'll have to pay for it. But they explain everything quite well.

    Regards,

     

    Michel

  • 0 in reply to Michel Raabe
    Intellectual 890 points

    As Michel states, it is always best to start with a project that already exists, it will save a lot of time and you will know you have the configuration correct.  Getting the interrupt priorities set correctly is the trickies thing, just because of the internal workings of the NVIC.  There is an attempt at an explanation here, but even then it is not clear without having something to copy: http://www.freertos.org/RTOS-Cortex-M3-M4.html

    Other related links for you would be:

    http://www.freertos.org/FreeRTOS-quick-start-guide.html

    http://www.freertos.org/porting-a-freertos-demo-to-different-hardware.html

    http://www.freertos.org/Creating-a-new-FreeRTOS-project.html

  • 0 in reply to FreeRTOS.org
    Prodigy 30 points

    Hi

    Thanks for the reply. As i am very new to the RTOS concepts. Can you please share some documents which explains the given demo project.

    Thanks & Regards

    praveen.k

  • 0
    Guru 27285 points

    praveen katari said:
    TivaWare_C_Series-1.1.

     Hi, why the oldest 1.1 instead of latest 2.1?