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R S232 for FLM R20+
Ref ere n ce g ui de
R59770107/00
08/03/2007
Barco nv Events
Noordlaan 5, B-8520 Kuurne
Phone: +32 56.36.89.70
Fax: +32 56.36.88.24
E-mail: [email protected]
Visit us at the web: www.barco.com
Printed in Belgium
Table of contents
TABLE OF CON TENTS
1. TheBarcoLCD/DLPProtocolBasics...........................................................................3
1.1 Command basics ..................................................................................................................... 4
2. TypicalRS232commandsforFLMR20+.......................................................................5
2.1 acknowledge.......................................................................................................................... 6
2.2 answer................................................................................................................................ 7
2.3 aspectratio height, read.............................................................................................................. 8
2.4 aspectratio height, write ............................................................................................................. 9
2.5 aspectratio width,write.............................................................................................................10
2.6 aspectratio,read .................................................................................................................... 11
2.7 aspectratio,write....................................................................................................................12
2.8 auto image, write ....................................................................................................................13
2.9 blankingtop, write................................................................................................................... 14
2.10 contrast enhancement, decrement.................................................................................................. 15
2.11 contrast enhancement, increment ..................................................................................................16
2.12 contrast enhancement, read ........................................................................................................17
2.13 contrast enhancement, write ........................................................................................................18
2.14 contrast,read........................................................................................................................19
2.15 contrast, rea d extended .............................................................................................................20
2.16 contrast,write........................................................................................................................ 21
2.17 field polarity, read.................................................................................................................... 22
2.18 field polarity, write....................................................................................................................23
2.19 gamma, read(1).....................................................................................................................24
2.20 gamma, read(2).....................................................................................................................25
2.21 gamma, read extended.............................................................................................................. 26
2.22 gamma, write ........................................................................................................................27
2.23 infrared ports,read ..................................................................................................................28
2.24 infrared ports,write..................................................................................................................29
2.25 input black balance, read............................................................................................................ 30
2.26 input black balance, write ...........................................................................................................31
2.27 input locking, read ................................................................................................................... 32
2.28 input locking, write................................................................................................................... 33
2.29 input white balance, read ............................................................................................................34
2.30 input white balance, write ...........................................................................................................35
2.31 internal pattern, write ................................................................................................................36
2.32 key configuration,read ..............................................................................................................37
2.33 key configuration,write..............................................................................................................38
2.34 lampdimming, read .................................................................................................................39
2.35 lampdimming, write .................................................................................................................40
2.36 lens, readfocus...................................................................................................................... 41
2.37 lens, readzoom......................................................................................................................42
2.38 minimum delay, read ................................................................................................................43
2.39 minimum delay, write ................................................................................................................44
2.40 noacknowledge.....................................................................................................................45
2.41 no signal color, write.................................................................................................................46
2.42 no signal shutdown, read status ....................................................................................................47
2.43 no signal shutdown, write status .................................................................................................... 48
2.44 no signal shutdown, write time ...................................................................................................... 49
2.45 noise reduction, decrement ......................................................................................................... 50
2.46 noise reduction, increment ..........................................................................................................51
2.47 noise reduction, read................................................................................................................52
2.48 noise reduction, write................................................................................................................53
2.49 P7status, read.......................................................................................................................54
2.50 P7status, write......................................................................................................................55
2.51 projector, read addres s
.............................................................................................................. 56
2.52 projector, readcustomer id..........................................................................................................57
2.53 projector, readtype (1)..............................................................................................................58
2.54 shutter,read .......................................................................................................................... 59
2.55 soft edge black level, read .......................................................................................................... 60
2.56 soft edge black level, w rite ..........................................................................................................61
2.57 soft edge size, read..................................................................................................................62
2.58 soft edge size, w rite .................................................................................................................63
2.59 soft edge, read status (flm).......................................................................................................... 64
2.60 soft edge, write status (flm) .........................................................................................................65
2.61 transition effect, read ................................................................................................................66
2.62 transition effect, write................................................................................................................67
2.63 versions, read (flmR20+) ...........................................................................................................68
Index......................................................................................................................69
R59770107 RS232 FOR FLM R20+ 08/03/2007 1
Table of contents
2 R59770107 RS232 FOR FLM R20+ 08/03/2007
1. The Barco LCD/DLP Protocol Basics
1. THE BARCO LCD/DLP PROTOCOL BASICS
R59770107 RS232 FOR FLM R20+ 08/03/2007 3
1. The Barco LCD/DLP Protocol Basics
1.1 Command basics
Command structure
Each comm and is packaged in this structure:
0xFE ADDR PREFIX
CMD
DATA
CHK
0xFE
Start by te (1
byte)
Device
address ( 1
byte)
Prefix (0..n
bytes)
Command
(1..n bytes)
Data (0..n
bytes)
Checksum (1
byte)
Stop by te (1
byte)
Explanation
• The s tart and stop byte are used to let te receiver know that a command is starting or has stopped.
• Device addre ss is used when multiple devices are connected on the sam e phy sical connec tion. This is typically used with serial
connections. In case of E thernet connections this is either ignored, or s hould be set to a fixed v alue, depending on the protocol.
• Prefix bytes: for some special comm ands it is possible t o use prefix bytes before the actual command bytes. It depends on the
actual protocol implem entation w hich prefixes are av ailable an d when they can be used.
• Command bytes: there will be at least one byte per comm and. The com mand bytes ac tually tell the device what to do.
• Data bytes: this is optional and depends on the command that will be sent. See also Data bytes cha pter. l Checksum by te:
this byte is used to detect er rors in t
he transmission or reception of the c omm and. For more information, see the Checksum
chapter.
Important note
Any command byte, data byte or checksum byte that equals 0x80, 0xFE or 0xFF, has to be marked up with a leading 0x80:
Byte to s end:
Actual m ark up of the byte to send:
0x80 0x80 0x00
0xFE 0x80 0x7E
0xFF 0x80 0x7F
Data bytes
• Characters: we will be using ANSI c oding for ch aracters (1 byte per character).
• Strings: strings can be formatted in two ways:
- C-style format: an array of one or mo re characters which is terminated by a NULL character (0x00). T he position of the
NULL character de termines the length of the string.
Example: ’f’ ’o’ ’o’ ’ ’ ’b’ ’a’ ’r’ 0x00
- Pascal-style format: an array of one or m ore characters. The first byte of the s tring indicates the length of the string. There-
fore pascal-style strings are limited to 255 c haracters.
Example: 0x07 ’f’ ’o’ ’o’ ’ ’ ’b’ ’a’ r’
• Multi-byte values: a multi-byte value consists of m ore than one byte. The first byte is the Most Significant B yte (MSB). Example
of a 4-byte value: 0x01 0x20 0x50 0x30 = 0x01 * 2563 + 0x20 * 2562 + 0x50 * 256 + 0x30 = 536956976.
Checksum
The checksum v alue for a command is calculated by doing a modulo 256 on the sum of the byet values of all bytes between s tart of
the command and the checksum byte
Checksum calculation:
Checksum byte = (Device address + Prefix bytes + Command bytes + Data bytes) mod 256
4
R59770107 RS232 FOR FLM R20+ 08/03/2007
2. Typical RS232 commands for FLM R20+
2. TYPICAL RS232 COMMANDS FOR FLM R20+
R59770107 RS232 FOR FLM R20+ 08/03/2007 5
2. Typical RS232 commands for FLM R20+
2.1 acknowledge
Description
When the format of a received command is correct, and the command is a valid command, the projector will send back an acknowl-
edge back to the req uestor before ex ecuting the actual command.
See also the no-acknow ledge command
Command
Command [0]
0x00
Command [1]
0x06
Data
No data bytes.
Return value
This comm and d oes not require an answer.
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R59770107 RS232 FOR FLM R20+ 08/03/2007
2. Typical RS232 commands for FLM R20+
2.2 answer
Description
Each comm and c an be preceded with the ans wer command. This will be ignored when the comm and is a read operation (read
operations always return an answer).
Command
Command [0]
0x00
Command [1]
0x03
Data
Data[0]
bit0 =0
bit1 =1
return with success after the c omm and
has been executed
bit2 =0
bit3 =0
bit4 =0
bit5 =0
bit6 =0
bit7 =0
Return value
Return data f or su ccess:
Command[0]
0x00
Command[1]
0x03
Data[0] 0x01
R59770107 RS232 FOR FLM R20+ 08/03/2007 7
2. Typical RS232 commands for FLM R20+
2.3 aspect ratio heig ht, re ad
Description
Get the height of the active as pect ratio of the image.
Command
Command [0]
0x21
Command [1]
0x0b
Command [2]
0xc2
Data
Return value
Command[0] 0x21
Command[1] 0x0b
Command[2]
0xc2
Data[0..3]
aspect ratio height as a DW O RD
On error, only the c omm and bytes will be re turned.
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R59770107 RS232 FOR FLM R20+ 08/03/2007
2. Typical RS232 commands for FLM R20+
2.4 aspect ratio height, write
Description
Set the height o f the aspect ratio of the image .
This is only possible if a custom asp ect ratio is s elected first. Set the height of the aspect ratio of the image.
Command
Command [0]
0x20
Command [1]
0x0b
Command [2]
0xc2
Data
Data = height as DWORD.
Return value
R59770107 RS232 FOR FLM R20+ 08/03/2007 9
2. Typical RS232 commands for FLM R20+
2.5 aspect ratio width, write
Description
Set the width of the aspect ratio of the im age.
This is only pos sible if a custom as pect ratio is selected first. Set the width of the aspect ratio of the im age.
Command
Command [0]
0x20
Command [1]
0x0b
Command [2]
0xc1
Data
Data = width as DWORD.
Return value
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2. Typical RS232 commands for FLM R20+
2.6 aspect ratio, read
Description
Get the ac tive asp ect ratio of the im age.
Command
Command [0]
0x21
Command [1]
0x0b
Command [2]
0xc0
Data
Return value
Command[0] 0x21
Command[1] 0x0b
Command[2]
0xc0
Data[0..n]
aspect ratio as a C-language string
On error, only the c omm and bytes will be re turned.
R59770107 RS232 FOR FLM R20+ 08/03/2007
11
2. Typical RS232 commands for FLM R20+
2.7 aspect ratio, w rite
Description
Set the as pect ratio of an image.
Command
Command [0]
0x20
Command [1]
0x0b
Command [2]
0xc0
Data
Data = aspect ratio as a C-language string.
Return value
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2. Typical RS232 commands for FLM R20+
2.8 auto image, write
Description
Execute specified auto image functionality
Command
Command [0]
0x20
Command [1]
0x9e
Data
Data[0]: Auto image functionality
Value Description
0x00 alignment
0x01
contrast/brightness
0x02 phase
Return value
R59770107 RS232 FOR FLM R20+ 08/03/2007 13
2. Typical RS232 commands for FLM R20+
2.9 blanking top, w rite
Description
Write a new value for blanking top.
Command
Command [0]
0x20
Command [1]
0x4c
Data
Data[0..1] = value of blanking top.
Data[0]
MSB of value
Data[1]
LSB of value
Return value
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2. Typical RS232 commands for FLM R20+
2.10 contrast enhancement, decrement
Description
Decrement the actual contrast enhancem ent.
Command
Command [0]
0x23
Command [1]
0x86
Data
Return value
R59770107 RS232 FOR FLM R20+ 08/03/2007 15
2. Typical RS232 commands for FLM R20+
2.11 contrast enhancement, increment
Description
Increment the actual contrast enhancement.
Command
Command [0]
0x22
Command [1]
0x86
Data
Return value
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2. Typical RS232 commands for FLM R20+
2.12 contrast enhancement, read
Description
Read the actual contrast enhance ment v alue.
Command
Command [0]
0x21
Command [1]
0x86
Data
Return value
Data[0]
0x00 low contrast
0x01 high contrast
On error, only the c omm and bytes will be re turned.
R59770107 RS232 FOR FLM R20+ 08/03/2007
17
2. Typical RS232 commands for FLM R20+
2.13 contrast enhancement, write
Description
Write a n e w c ontrast enhan cement value.
Command
Command [0]
0x20
Command [1]
0x86
Data
Data[0]
0x00 low c ontrast
0x01 high co ntrast
Return value
18 R59770107 RS232 FOR FLM R20+ 08/03/2007
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