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TMS320F28069M: State after reset

Carlo
Expert 7715 points
Part Number: TMS320F28069M

Hi team,


Good day.


What is the state of the GPIO51 pin on the TMS320F2806x after a RESET?  And how many clock cycles before the configuration register is read and applied to the pin?

Regards,
Carlo

  • 0
    TI__Guru* 77410 points

    Carlo,

    All the GPIOs on this device will be configured as inputs coming out of reset.  Any GPIO that is not a primary PWM pin also has a internal PU enabled on reset, this would include GPIO51.

    The time before the configuration register to applied really depends on the user code, how much code is in Flash vs RAM, etc.  I think it would be straightforward enough to map out the cycle count using the CCS profiler with a device to factor the above in.

    Best,

    Matthew