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TMS320F280048-Q1: GPIO24 and GPIO32 configuration as ePWM

Gokhan G.
Intellectual 775 points

Part Number: TMS320F280048-Q1
Other Parts Discussed in Thread: SYSCONFIG

Hi,

In my software, I'm trying to use GPIO24 and GPIO32 as ePWM8A and 8B. When I wrote following lines for init. I got errors. Could you please comment how I cannot use it?

// GPIO24 is the PWM8A pin for 48.
// GPIO14 is the PWM8A pin for 49C.
//GPIO_setAnalogMode(24, GPIO_ANALOG_DISABLED);
    GPIO_setMasterCore(24, GPIO_CORE_CPU1);
    GPIO_setPinConfig(GPIO_24_EPWM8_A);
    GPIO_setDirectionMode(24, GPIO_DIR_MODE_OUT);
    GPIO_setPadConfig(24, GPIO_PIN_TYPE_STD);
    GPIO_setQualificationMode(24, GPIO_QUAL_ASYNC);  
  

// GPIO32 is the PWM8B pin for 48.
// GPIO32 is the PWM8B pin for 49C.
//GPIO_setAnalogMode(32, GPIO_ANALOG_DISABLED);
    GPIO_setMasterCore(32, GPIO_CORE_CPU1);
    GPIO_setPinConfig(GPIO_32_EPWM8_B);
    GPIO_setDirectionMode(32, GPIO_DIR_MODE_OUT);
    GPIO_setPadConfig(32, GPIO_PIN_TYPE_STD);
    GPIO_setQualificationMode(32, GPIO_QUAL_ASYNC);

  • 0
    TI__Mastermind 19795 points

    Hi Gokhan,

    Thanks for your question! Are you using Sysconfig by any chance? Or just driverlib?

    If this is just driverlib, then I thin the issue may be something related to syntax somewhere higher up in the code. If you could also provide the code that was working, we can compare to see if something has a typo somewhere.

    Regards,

    Vince

  • 0 in reply to Vince
    Intellectual 775 points

    Hi Vince,

    I don't use Sysconfig, but when I tried it at another project. I also couldn't configure it.

    I just use driverlib based project, I write my code on my own. 

    Whole code has so much lines, sending it here isn't feasible. I can search some line in my code whether there is another line related to it. 

    Could you please offer?

  • 0 in reply to Gokhan G.
    TI__Mastermind 19795 points

    Hi Gokhan,

    This looks like incorrectly imported header files. Can you start with a known-good project and then re-implement your changes? These errors above shouldn't occur unless the entirety of driverlib headers are not being imported properly

    Regards,

    Vince