Use the serial COM port to read and write registers through USB CDC commands using the following format:

• Read register format: rreg ADR
  • Where ADR is the address in hex, and rreg is always lower case
  • Register addresses can be in upper or lower case, and do not need to be led by '0x'. 0 padding register addresses is also optional. For example, to read register address 0x1, some valid commands include:
    • rreg 1
    • rreg 01
    • rreg 0x01
      • When '0x' is used, the 'x' must be lower case.
  • For the previous example, the EVM would return the results in JSON format

    {"acknowledge":"rreg 0x01"}

    {"register":{"address":1,:"value":3}}

    {"evm_state":"idle"}

• Write register format: wreg ADR VAL
  • Where ADR and VAL are in hex, and wreg is always lower case
  • Register addresses and values can be in upper or lower case, and do not need to be led by '0x'. 0 padding register addresses and values is also optional. For example, to write register address 0x5 with the value 0x4121, some valid commands include:
    • wreg 5 4121
    • wreg 05 0x4121
    • wreg 0x05 0x4121
      • When '0x' is used, the 'x' must be lower case.
  • For the previous example, the EVM would return the results in JSON format:

    {"acknowledge":"wreg 0x01 0x4121"}

    {"console":"Writing 0x4121 to ADC_CONFIG register"}

    {"evm_state":"idle"}