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TMS320F28335: TMS320F28335 SPI pull up question

Hai Nguyen98
Prodigy 60 points
Part Number: TMS320F28335


TMS320F28335 : 

Do I need to have external pull up on the SPI pins of the TMS320F28335 device?

The TMS320F28335 device have the internal pull up on those pins but not sure the external one are needed?

Thanks.

  • 0
    Guru 30330 points
    Hello Hai,

    External pull ups are not necessary. The internal pull up is sufficient for most cases. That being said, if you have a noisy application, having the external pull up would be additional guard against noise propagating into the transmission.

    Thanks,
    Mark