Barco iD Pro R600+ User guide

Type
User guide

This manual is also suitable for

iD (PRO) R600/R600+
User manual
RS232 Serial Communication
R9010340 - R9010341
R9010350 - R9010351
R5976841/01
19/09/2006
Product revision
Software version: V1.30
Barco nv Presentations
Noordl
aan 5, 8520 Kuurne
Phone: +32 56.36.82.11
Fax: +32 56.35.86.51
E-mail:
Visit us at the web: www.barco.com
PrintedinBelgium
1. Serial communications Basics
1. SERIAL COMMUNICATIONS BASICS
Overview
Communication Protocol
Data words
Communication settings
Hardware
Syntax
Serial comms commands
R5976841 ID (PRO) R600/R600+ 19/09/2006
1
1. Serial communications Basics
1.1 Communication Protocol
Communication protocol summary
Like every communication method the serial communication uses a particular protocol (ANSI) which must be respected in order to
allow communication to take place, following table gives a summary of the predefined communication terms.
Start byte \xfe
Projector address
Command byte(s)
Data bytes
1
Checksum byte
Stop byte \xff
ANSI
American National standards Institute
Start byte
The “Start byte” informs the projector (in case of transmission) or the computer (in case of reception) that a new data transfer will
take place
Projector address
The “projector address” defines the address of the computer the projector wants to talk to (in case of transmission) or the address
of the projector that answers (in case of
reception).
The maximum number of projectors th
at can be ad dressed by one co mp uter is 256.
Comman d byte (s)
There is at least one command byte to define the action to be performed. Commands that are not often used or complex commands
can take more than one byte. All command bytes that are sent by the computer to get information out of the projector are repeated
in the answer-data-transf
er of the projector.
Data bytes (optional)
Whether the command bytes are followed by one or more data bytes depends on the contents of the command bytes.
Data which contains more than one byte is called a word and can also be signed or unsigned.see "Data words", page 4
Some commands do not requ ire a data field(s)
Checksum byte
The “Checksum byte” is used to detect errors during transmission or reception
Checksum byte = (projectoraddress + command bytes + Data bytes) Modulo \x100
Stop byte
The “Stop byte” informs
the projector (in case of transmission) or the computer (in case of reception) that the data transfer is complete
and that the interpretation of the command and data bytes can start.
Acknowledge (ACK)
If the communication link and if the sent commands can be interpreted by the projector an “ACK command is sent back. In case the
commands cannot be interpreted a NACK command is sent back.
1. optional
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1. Serial communications Basics
End of process (EOP)
When the end of process command is activated, an EOP is send after the ACK command to signify the completion of the process.
for more in fo rmat ion about this, see the EOP command.
Note
Any command byte, data byte or checksum byte that equals \x80, \xfe, \xff hastobeconverted!
1. Transmission
- instead of \x80, send \x80 followed by \x00
- instead of \xfe, send \x80 followed by \x7e
- instead of \xff, send \x80 followed by \x7f
2. Reception
- replace \x80 followed by \x00 with \x80
- replace \x80 followed by \x7e with \xfe
- replace \x80 followed by \x7f with \xff
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1. Serial communications Basics
1.2 Data words
msb
The most significant byte, is the byte with the greatest weight (value).
lsb
The less significant byte, is the byte with the smallest weight (value).
Description
A word contains more than one byte, the first byte is the msb, the last byte is the lsb.
Examples of data words
The projector runtime parameter is described using an unsigned double word where 2 bytes (msb ...lsb) represent the value of
the runtime in seconds.
How to calculate the value of a word ?
Lets take the example of a double word returned by the projector runtime, read commando.
returned data = Data[0]....Data[3]
value = Data[0]*256
3
+ Data[1]*256
2
+ Data[2]*256 + Data[3].
4
R5976841 ID (PRO) R600/R600+ 19/09/2006
1. Serial communications Basics
1.3 Communication settings
Baud rate
Defines the speed of the data transfer. The baud rate can be set using the menu structure.
Consult the Owner’s manual of the projector on how to change the baud rate setting.
Data Bits
Eight data bits are used for each character of the data transfer.
Parity
There is no parity bit used to perform error checking.
Stop Bits
One stop bit is used to define the end of a character.
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1. Serial communications Basics
1.4 Hardware
Overview
Female D9–pin connector labelled “RS232 IN” used to connect the projector with the computer.
Pin out of the D9 connector:
Pin Name Full Name
1
CD Carrier Detect
2 RxD Received Data
3 TxD Transmitted Data
4 DTR Data Terminal Ready
5
GND Signal Ground
6
DSR Data Set Ready
7
RTS Request To Send
8
CTS Clear To Send
9 RI Ring Indicator
Standard serial Cable
- order number R9827560 (cable length = 15m )
- order number R9827570 (cable length = 30m )
1
CD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
1
CD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
D9
female
D9
male
Image 1-1
connection: IB
M PC or compatible projector
6 R5976841 ID (PRO) R600/R600+ 19/09/2006
1. Serial communications Basics
1
HSKo
2
HSKi
3
TxD-
4
GND
5
RXD-
6
TXD+
7
n.c.
8
RXD+
4
DTR
8
CTS
3
TxD
5
GND
2
RxD
DIN
mini 8
D9
male
Image 1-2
connection: MAC projector
Signal levels
Following table gives the signal levels corresponding to the different states:
State
Voltage
Off = 1
-9V
On = 0
+9V
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1. Serial communications Basics
1.5 Syntax
Characters
In this manual, all characters are expressed using the C- language syntax:
decimal values ddd
2
hexadecimal values \xhh
3
The characters that can be used are
For text fields: "ABCDEFGHIJKLMNOPQRSTUVWXYZ 01234 56789+-/&@ #_:;ab cdefgh ijklmn op qrstuvwxyz”
For filenames: "?*ABCDEFGHIJKLMNOPQRSTUV
WXYZabcdefghijklmnop qrstuvw xyz0123456789_ -"
Negati ve values /numbers
The 2s complement number system is use
d to express negative numbers
Pascal- language string
A Pascal-language string consists of one or more characters. The first character of the string contains the length of the string.
Therefore, a Pascal-language string is limited to 255 characters.
Pascal string ’Hello world”
length
\x0b
’h’
\x68
’e’
\x65
’l’
\x6c
’l’
\x6c
’o’
\x6f
\x20
’w’
\x77
’o’
\x6f
’r
\x72
’l’
\x6c
’d’
\x64
C-language string
A C-language string consists of one or more characters. The last character of the string is always the NULL character \x00.There-
fore, the length of a C-language string is determined by the position of the NULL character..
C string ’Hello world”
’h’
\x68
’e’
\x65
’l’
\x6c
’l’
\x6c
’o’
\x6f
\x20
’w’
\x77
2. ddd=0...255
3. hh=00...ff
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1. Serial communications Basics
’o’
\x6f
’r
\x72
’l’
\x6c
’d’
\x64
NULL
\x00
standard file
Predefined file stored in read-only memory
custom file
File created by the user and stored in non-volatile read write memory
Filename
A filename is specified as a C-language string. This string has to follow some rules:
x x x x x x x x . y z z
NULL
1. length string = 12
2. x = character of the base name formed by max 8 characters
3. y = kind of file (= 1 character)
’s’
standard file
’c’
custom file
4. z = file index (= 2 characters: 0..9)
zz specifies the location in memory where the file is stored.
- for standard files: zz = 00...maximum standard files
- for custom files: zz = 00...63 where 00 is reserved for the file ’none .c00’ (file which is loaded when no signal is applied)
5. yzz is a unique combination. In other words, no two files can exist with the same extension yzz.
To specify more than one file you can use the q uestion mark (?) and (*) wild card character for x, y and z (or
any other character).
?: This wildcard character can represent any possible character on a particular loca tion.
* : This wildcard character can represent an y poss ible ch aracte r(s) followin g the w ildcards position in the
string.
•”ntsc .c01
•”svga_60v.s?7
•”????????.???
”sv*.*”
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1. Serial communications Basics
1.6 Serial comms commands
Basic Commands
Basic commands are the commands used to control the basic parameters of the projector.
The Contrast increment command is a basic command.
Advanced Commands
Advanced commands are used to control advanced parameters of the projector.
The Pip loop focus is an advanced parameter
This manual is divided in t wo parts, the first part contains the basic (elementary) com mands while the second
part g ives an overview of th e available advanced commands.
Some commands are illustrated with an examp le.
10 R5976841 ID (PRO) R600/R600+ 19/09/2006
2. Basic Commands
2. BASIC COMMANDS
Overview
Identification Commands
RCU commands
Textbox ON/OFF
Projector ON/OFF, Write
Projectors Status, Read
Lens commands
Picture setting
Menu Exit
Source selection
Scanned inputs, read
Scan inputs
Orientation, Write
Orientation, Read
Shutter, Write
Shutter, Read
Freeze, Write
Freeze, Read
Logo ON/OFF
Background, Write
Background, Read
Aspect ratio, Write
Aspect Ratio, Read
Show Native resolution (ON/OFF), Write
Show Native resolution (ON/OFF), Read
Full screen representation(ON/OFF), Write
Full screen representation (ON/OFF), Read
Keystone, Write
Keystone, Read
Lamp commands
Image files
Standby Timer, Write
Standby Timer, Read
Switching mode, Write
Switching mode, Read
Filmmode detection, Increment/Decrement
Filmmode detection, Write
Filmmode detection, Read
•Blanking
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2. Basic Commands
2.1 Identification Command s
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2. Basic Commands
2.1.1 Device type, Read
Description
Reads the device (projector) type, the returned string is a Pascal-language string.
Command
Command [0]
\x6b
Returned Data
Data[0] = byLength = 1 byte describing the length of the string.
Data[1] = strDeviceType = pascal-language stri
ng describing the device type.
An example of device type is “IQ”
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2. Basic Commands
2.1.2 Projector’s Software type, Read
Description
Reads the Projector’s Software type, the returned string is a Pascal-language string.
Command
Command [0]
\x6a
Returned Data
Data[0] = byLength = 1 byte describing the length of the software version string.
Data[1] = strSoftwareType = pascal-language st
ring describing the software type.
An example of software type is “Stan dard
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2. Basic Commands
2.1.3 Projector’s Software version, Read
Description
Reads the Projectors Software version, the returned string is a Pascal-language string.
Command
Command [0]
\x60
Returned Data
Data[0] = byLength = 1 byte describing the length of the software version string.
Data[1] = strSoftwareVersion
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2. Basic Commands
2.1.4 Projector’s Serial number, Read
Description
Reads the Projector’s serial number, the returned string is a Pascal-language string.
Command
Command [0]
\x61
Returned Data
Data[0] = \x07 = length of the serial number = 7 characters
Data[1] = string of length 7
16
R5976841 ID (PRO) R600/R600+ 19/09/2006
2. Basic Commands
2.1.5 Projector’s runtime, Read
Description
Reads the Projector’s runtime in seconds
Command
Command [0]
\x62
Returned Data
unsigned double word (4 bytes).
Data[0] = msb
Data[1]
Data[2]
Data[3] = lsb
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2. Basic Commands
2.1.6 Projector address, Write
Description
Writes a new address to the projector
Command
Command [0]
\x6D
Data
Data[0] = unsigned byte
Example
Writes a new address to the projector, being “1”
Transmit
Start
\xfe
Projector address
\x01
Command[0]
\x6d
Data[0]
\x01
Checksum
\x6f
Stop
\xff
Receive (acknowledge)
Start
\xfe
Projector address
\x01
Command[0]
\x00
Command[1]
\x06
Checksum
\x07
Stop
\xff
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Barco iD Pro R600+ User guide

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