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TMS320F2800137: Regarding GPIO 19 (pin 42)

Seema Dawange
Prodigy 40 points
Part Number: TMS320F2800137


Tool/software:

Hello,

I am using TIDM 02010E32 Board and have MCU TMS320F2800137 64 pin. 

pin number 42 of MCU is 

GPIO19 /  SPIA_STE / SCIB_RX / CANA_TX / EPWM6_B / I2CA_SDA / X1 / ExtR

I am using EPWM6_B here but I there is only problem with this pin as it is not generating PWM signals like other pin even I am getting EPWM6_A also on pin 63.

Is there anything that i missed to set or change while executing the code?

Thanks in advance.

  • 0
    TI__Mastermind 27096 points

    Hi Seema,

    Can you ensure the PWMB is not tripped by reading the TZFLG register?

    If the TZFLG register is not set, then the PWM pins are not tripped. 

    Can you ensure that the AQCTLB register is configured properly? 

    If they are then PWM outputs are being generated.

    I assume TBCTR is changing since you're seeing EPWM6_A.

    Last step is to ensure that the GPIO configuration for PWM6_B is configured properly. I highly suggest comparing the configuration of PWM6_B to an existing driverlib example to see what could be incorrect. 

    Best,

    Ryan Ma