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SN65HVD1794: SN65HVD1794 will receive the data that sent by itself

Part Number: SN65HVD1794

Hi team,

customer use SN65HVD1794 as RS485 receiver and now have a question that SN65HVD1794 will receive the data that sent by itself. is it correct?

They ignore these data from the software, but they are not sure is it right? could you give some ideas?

thanks.

  • Hi Betty,

    Yes, this is correct. Since the device does not have a pin to disable the receiver function, it will always receive the data on the bus even if the data is generated by its own driver. So, transmitted data will always be "looped back" and can be ignored by software if not useful.

    Regards,
    Max