Send Display String Command; Get Parameter Definition By Id - Lexicon RV8 V1.0 - SERIAL COMMUNICATIONS PROTOCOL DEFINITION REV 1-7 Manual

Lexicon, Inc.
RV-8 Serial Communications Protocol
The data value transmitted to the RV8 will be verified as a valid value. If it is valid the RV8 will set/clear
the mute and respond with an ACK Packet. If the data value is invalid the RV8 will respond with a
DC_INVALID_DATA error NAK.

7.3.12 Send Display String Command

This command allows the Host to send a 40-character string to the RV8 for display on the OSD. The front
panel display goes blank and the message is only displayed on the OSD.
7.3.12.1 Packet Description
Application Header:
Command
Data Count
Application Data:
Data[0]
Data[1]-Data[DataCount-1]
7.3.12.2 Data Description
Display Command Flags:
Word Bit Definition
0 0 FPD only: If set TRUE, the display string will only be sent to the FPD device for display.
0 1 Undefined.
0 2 Undefined.
0 3 Undefined.
0 4 Undefined.
0 5 Undefined.
0 6 Undefined.
0 7 Undefined.
Display String:
Data Type:
Max Length:
7.3.12.3 RV8 Response
The display string is sent to the OSD and Front Panel Display. The RV8 will ACK when completed with
this command.
7.3.12.4 Data Validation:
If a string length exceeds the 40 character maximum the string will be truncated before displaying and the
RV8 transmit a DC_NAK command with an error code DC_INVALID_DATA.

7.3.13 Get Parameter Definition by Id

Request to RV8 for a Parameter Definition by Parameter Id. RV8 will respond with "RV8 Parameter
Definition Packet".
© 2004 Lexicon, Inc. All rights reserved.
DC_CMD_SET_DISPLAY_STR 0x33
Number of characters in the
DisplayStr + 2
DisplayFlags
DisplayStr
Null (0x00) terminated ASCII character string.
40 characters.
Printed on: 01/18/05
nn
nn
ch ch ch ... 0x00
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