Handbook

14
Redbox User Handbook No 1
Serial Port Control
The Serial Port allows the RB-ADDA2 to be controlled and updated from a PC via a pin-to-
pin serial cable, using the Sonifex Serial Control Interface (SCI) software. This software is
available as a free download from the Sonifex website at www.sonifex.co.uk/sci.
Default Settings for the Serial Port
Baud Rate: 19200
Data Bits: 8
Stop Bits: 1
Parity: Even
Handshaking: XON/XOFF
Serial Interface Commands and Responses
Most of the commands follow the same structure: a 3 letter command followed by a colon,
followed by a parameter (if any) and terminated by Carriage Return with optional Line Feed.
A Line Feed character may be sent but it will be ignored by the RB-ADDA2. Commands are
not case sensitive and all parameters are in hex.
Responses are CR & LF terminated.
After the RB-ADDA2 has been powered-up, an initialisation string is sent “Initialising ADDA2”.
Following are the commands and the expected responses:
Command Description Response
ADB:nn - Set ADC Bit Size - ACK:
nn=00 - 16 Bits
nn=01 - 20 Bits
nn=02 - 24 Bits
ADC:nn - Set ADC Channel Status Type - ACK:
nn=00 - Send Consumer CS Data
nn=01 - Follow Sync Input (or use last set)
nn=02 - Send Professional CS Data
ADF:nn - Set ADC Channel Status Type - ACK:
nn=00 - Select 32kHz Master Clock Sample Rate
nn=01 - Select 44kHz Master Clock Sample Rate
nn=02 - Select 48kHz Master Clock Sample Rate
nn=03 - Select 88kHz Master Clock Sample Rate
nn=04 - Select 96kHz Master Clock Sample Rate
DIGITAL AUDIO CONVERTERS
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DIGITAL AUDIO CONVERTERS - RB-ADDA2