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10
Serial Port
10.1
Serial Specification
Serial data will be transmitted and received at:
• 19200 baud
• 8 data bits
• 1 stop bit
• No parity
10.2
Serial Echo
Serial commands sent to the display are echoed and immediately followed by any data
modified by the command, or the desired value queried. For example, the command
"B+<CR><LF>" returns "B+XXX<CR><LF>", with "XX" being the new brightness
value post increment. The command "B?<CR><LF>" returns "B?XXX <CR><LF>",
with "XXX" being the current brightness value. Unsupported commands return the
received serial bytes followed by an ASCII <NAK> character (0x15).
10.3
Keypad Data
Keypad data shall be transmitted asynchronously by the display whenever data from the
keypad is available. When a key is pressed, data will be sent in the format:
"$XX<CR><LF>" where "XX" Is the unique key ID from "01"-"24".
This serial message will repeat at a default rate of 96 ms. The rate will be modifiable via
serial command.
Saber PanelMount NVIS 90-3104-005 User's Manual
Page 13
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