Legend For The Control Commands; Command Types; Prefix Summary; Error Messages - Lightware MMX4x2-HDMI User Manual

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7. LW3 Programmers' Reference
7.3.3. Legend for the Control Commands
Command and Response – Example
ç GET·/MEDIA/VIDEO/I2.SignalPresent
pr·/MEDIA/VIDEO/I2.SignalPresent=<signal_present>
æ
Format
<in> Input port number
<out> Output port number
<port> Input or output port number
<loc> Location number
<parameter> Variable defined and described in the command
Batched parameters: the underline means that more expressions or parameters
<expression>
can be placed by using a semicolon, e.g. I2;I4;I5 or F27:E1;F47:E2
Sent command
ç
Received response
æ
· Space character
Further not listed <parameters> are defined at each commands.
7.3.4. Command Types
GET command
The GET command can be used to get the child nodes, properties and methods of a specific node. It can also
be used to get the value of a property. Use the dot character (.) when addressing a property:
ç GET /.SerialNumber
æ pr /.SerialNumber=87654321
GETALL command
The GETALL command can be used to get all child nodes, properties and methods of a node with one
command.
ç GETALL /MEDIA/UART
æ ns /MEDIA/UART/P1
æ ns /MEDIA/UART/P2
æ pr /MEDIA/UART.PortCount=2
æ pr /MEDIA/UART.PortUi=P1:12209;P2:12224
æ pr /MEDIA/UART.P1=Local RS-232
æ pr /MEDIA/UART.P2=TPS out RS-232
Description
Applied firmware package: v1.5.0b8 | LDC software: v2.3.0b1
MMX4x2 series – User's Manual
SET command
The SET command can be used to modify the value of a property. Use the dot character (.) when addressing
the property:
ç SET /MEDIA/VIDEO/I1.ColorSpaceMode=0
æ pw /MEDIA/VIDEO/I1.ColorSpaceMode=0
CALL command
A method can be invoked by the CALL command. Use the colon character (:) when addressing the method:
ç CALL /MEDIA/VIDEO/XP:switch(I1:O1)
æ mO /MEDIA/VIDEO/XP:switch
MAN command
The manual is a human readable text that describes the syntax and provides a hint for how to use the
primitives. For every node, property and method in the tree there is a manual, type the MAN command to get
the manual:
ç MAN /MEDIA/VIDEO/O1.Pwr5vMode
æ pm /MEDIA/VIDEO/O1.Pwr5vMode ["0" | "1" | "2"] 0 - Auto, 1 - Always On, 2 - Always Off
7.3.5. Prefix Summary
DEFINITION:
The prefix is a 2-character long code that describes the type of the response.
The following prefixes are defined in the LW3 protocol:
Prefix Description
n- a node
nE an error for a node
nm a manual for a node
pr a read-only property
pw read-write property
pE an error for the property
7.3.6. Error Messages
There are several error messages defined in the LW3 protocol, all of them have a unique error number.
ç CALL /MEDIA/VIDEO/XP:switch(IA:O1)
æ mE /MEDIA/VIDEO/XP:switch %E004:Invalid value
Prefix Description
pm a manual for the property
m- a method
mO a response after a success method execution
mF a response after a failed method execution
mE an error for a method
mm a manual for a method
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