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TMS320F28335: Trip zones

Graham Hunt
Intellectual 300 points
Part Number: TMS320F28335


Hi,

I have a product that I am allocating a trip zone (TZ) input to an e-stop button. When an e-stop is activated I'd like 3 PWMs to control a PMSM. Reading datasheets I don't think this is possible as the PWM o/ps can only be set to low, high or high impedance. is this true? Thx

  • 0
    Guru 192875 points

    Hi Graham,

    Graham Hunt said:
    I don't think this is possible as the PWM o/ps can only be set to low, high or high impedance. is this true?

    Yes, you're absolutely correct! I would instead recommend you to configure a GPIO as an external interrupt and then manage your PWMs to control PMSM as when this interrupt occurs.

    Regards,

    Gautam