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TMS320F28377D: If there's an issue that GPIO72 multiplexed with EM1D12

Rayna Wang
Expert 3680 points
Part Number: TMS320F28377D

Hi Expert,

Customer uses GPIO72 as boot mode select pin active high, while using EM1D12 to receive data. 

Now they meet a reset failure issue, and want to know that if it is because when EM1D12 receiving data “0” and reset action happen at same time.

If yes, could you give some suggestion on how to solve this issue?

If not, could you give your analysis or debug way for this issue?

Thanks!

Best Regards

Rayna

  • 0
    TI__Guru** 113875 points

    Hi Rayna,

    Now they meet a reset failure issue, and want to know that if it is because when EM1D12 receiving data “0” and reset action happen at same time.

    Yes, that can cause issue for device boot after reset. User need to make sure external device which is driving the data on EM1D12 pin must also be reset when TMS320F28377D device is getting reset. If not then user need to use some other pins for BOOT instead of GPIO72.

    Regards,

    Vivek Singh