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I have three interfaces:

  • RS422
  • SPI
  • Ethernet

I’m looking to generate and transmit a variable length message over the interfaces at rates up to 2KHz. I want to code checks to make sure that my output message length can be transmitted at the selected output rate for the settings of the transmission medium. I realise that this depends on the configuration of the different interfaces:

  • RS422: baud rate
  • SPI: clock
  • Ethernet: 10Mbs or 100Mbps

As well as:

  • Message length
  • Transmission rate

Can anyone suggest how I can check for these fault conditions?

Joe
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1 Answers1

1

Measure the bit error rate at various transmission rates and take this into consideration. You can transmit various bit patterns, collect a good sample and analyze the results to pick an ideal message size, transmission rate and integrity check/repair mechanism. Your ideal message size will likely be different for each interface.

user12875652
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