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LP-MSPM0L1306: Multiple pins from one timer output

Eric Christenson
Prodigy 160 points
Part Number: LP-MSPM0L1306

Hi:

I have a situation where I want to drive two PWM pins with the very same output at least some of the time, and I am wondering if I can assign two pins to a single capture/compare register output.  This can obviously be specified in software since the IOMUX registers let me set each pin individually, but there are also fanout concerns.

E.

  • 0
    TI__Guru 70426 points

    Hi Eric,

    Yes, it appears possible.  I setup example below and verified with a logic probe that it works.

    //GENERATED BY SYSCONFIG TIMG0-CC0 OUTPUT ON PA12
#define GPIO_PWM_0_C0_PORT                                                 GPIOA
#define GPIO_PWM_0_C0_PIN                                         DL_GPIO_PIN_12
#define GPIO_PWM_0_C0_IOMUX                                      (IOMUX_PINCM13)
#define GPIO_PWM_0_C0_IOMUX_FUNC                     IOMUX_PINCM13_PF_TIMG0_CCP0
#define GPIO_PWM_0_C0_IDX                                    DL_TIMER_CC_0_INDEX


//I MODIFIED EXAMPLE TO ADD LINES #15,16 - THIS CONFIGURES TIMG0-CC0 OUTPUT ON PA5
int main(void)
{
    SYSCFG_DL_init();


    DL_GPIO_initPeripheralOutputFunction(IOMUX_PINCM6,IOMUX_PINCM6_PF_TIMG0_CCP0);
    DL_GPIO_enableOutput(GPIO_PWM_0_C0_PORT, DL_GPIO_PIN_5);

    DL_TimerG_startCounter(PWM_0_INST);


    while (1) {
        __WFI();
    }
}