2.1. Command Communications Sequence
Projector returns ACK, NAK, or Status after reception of Command within 1 second.
An ASCII code is used f or data. It is discriminated wheth er transmitting character sequenc es are a capital
letter and a small letter.
Although there is no distinction of a capital letter small letter, let a capital letter be a standard.
Command transmission and Status reply add Start Character and End Character as follows.
Start Character : ’@’
End Character : 0x0D
Command Sample : "@PWR?", 0x0D (Request Power Status)
Feedback Sample : "@PWR1", 0x0D, 0x0A(Power Status = On)
A reception side cancels data before '@'. W hen 0x0D comes, with '@' not com ing, NAK (recept ion failure) is
returned.
That which made Hex the ASCII code is used for transmission and reception of digital data.
Between a command and a numerical value, '/' is inserted as a delimiter.
For Example: When 26(decimal) of the number is expressed
'1', 'A'→0x31, 0x41
2.2. Normal Command
It is Command which demands processing.
In data other than an appointed command, or the state where '@' does not come, when 0x0D comes, it
becomes reception failure, and NAK is returned.
2
PC Control Specification for VP-12S1
Commands, such as P ower On Command at the t ime of notes Standby (Fan operation), return on ly ACK,
when processing is not carried out.
For example: When Power On is sent to Projector.
Command transmission from PC.
"@PWR", 0x0D
After Command processing end and from a projector to a reply
2.3. Request Status Command
It is Command which demands Status.
Projector returns Status or NAK.
In data other than an appointed command, or the state where '@' does not come, when 0x0D comes, it
becomes reception failure, and NAK is returned.
For Example: When Power Status is requested to Projector.
Command transmission from PC.
"@PWR?", 0x0D
After Command processing end and from a projector to a reply
"@PWR1", 0x0D, 0x0A (Power On)
or "@PWR0", 0x0D, 0x0A (Standby)
or 0x15, 0x0D, 0x0A(NAK reception failure)
3
PC Control Specification for VP-12S1
2.4. Normal Command List
Command Character Example
Power
Source
Memory
Aspect
V-Mute
Keystone V
Keystone H
Focus
Black Setup
Lamp Mode
Power On PWR1
Standby PWR0
Component CMP
S-Video SVD
Video VDO
RGB RGB
Aux. AUX
Theater1 THE1
Theater2 THE2
Theater3 THE3
Theater Default THED
Standard 1 STD1
Standard 2 STD2
Standard 3 STD3
Standard Default STDD
Dynamic 1 DYN1
Dynamic 2 DYN2
Dynamic 3 DYN3
Dynamic Default DYND
Normal NML
Through THRH
Full FULL
Zoom ZOOM
V-Mute On MUT1
V-Mute Off MUT0
Keystone V+ KEYV+
Keystone V- KEYVKeystone V ## KEYV/##
Keystone H+ KEYH+
Keystone H- KEYHKeystone H ## KEYH/##
Focus On FOC1
Focus Off FOC0
Black Setup 0IRE BSET0
Black Setup 7.5IRE BSET7
Lamp Mode High LMODEH
Lamp Mode Low LMODEL
Gamma Set at Dynamic GSDYN/##
Gamma Set at Theater GSTHE/##
C Temp. Red at Low*2 CTAL/R/###
C Temp. Green at Low CTAL/G/###
C Temp. Blue at Low CTAL/B/###
Color Temp
Adjust Value Set*
C Temp. Red at Mid. *2 CTAL/R/###
C Temp. Green at Mid. CTAM/G/###
1
C Temp. Blue at Mid. CTAM/B/###
C Temp. Red at High*2 CTAL/R/###
C Temp. Green at High CTAH/G/###
C Temp. Blue at High CTAH/B/###
C Temp at Low
C Temp at Mid.
Color Temp
C Temp at High
Value Get
Answer
Color Temp
Mode Set
*1 It becomes effective, after Setting Color Temp Mode
The meaning of the parameter in Gamma Set command is described below.
Parameter Description
00 Select a Gamma Table 1 defined by Texas Instruments in HDFP
01 Select a Gamma Table 2 defined by Texas Instruments in HDFP
02 Select a Gamma Table 3 defined by Texas Instruments in HDFP
03 Reserved
04 Select a Gamma Table 1 defined by Texas Instruments in HDFP u-com
05 Select a Gamma Table 2 defined by Texas Instruments in HDFP u-com
06 Select a Gamma Table 3 defined by Texas Instruments in HDFP u-com
07 Select a Gamma Table 4 defined by Texas Instruments in HDFP u-com
08 Select a Gamma Table 5 defined by Texas Instruments in HDFP u-com
09 Select a Gamma Table 6 defined by Texas Instruments in HDFP u-com
0A Select a Gamma Table 7 defined by Texas Instruments in HDFP u-com
0B Select a Gamma Table 8 defined by Texas Instruments in HDFP u-com
0C Select a Gamma Table 9 defined by Texas Instruments in HDFP u-com
0D Select a Gamma Table 1 defined by User(MJI) in EEPROM
0E Select a Gamma Table 2 defined by User(MJI) in EEPROM
0F Select a Gamma Table 3 defined by User(MJI) in EEPROM
7
PC Control Specification for VP-12S1
It is asked for f requency by the following formulas from the return value of V S ync. In addit ion, since
return value is Hex, be careful.
1
valuereturn
×
Build Number expresses the thing of a sub microcomputer.
Boot Program Version number the thing of a sub microcomputer.
Firmware Program Version number the thing of a sub microcomputer.
2
I
C Direct Write Command
"@IICW/##/##/##"
For Example: When 0xDF value is written in Device Address = 0x88 and Sub Address = 0x02
"@IICW/88/02/DF"
For Example: When 0x12 is written in Device Address = 0x46 and Sub-Address="specification-less"
"@IICW/46/--/12"
2
C Direct Read Command
I
8
=
6
10288.12
×
][
Hzfrequency
"@IICR/##/##"
For Example: W hen read-out is perform ed from Device Addres s = 0x89 and Sub Addr ess = 0x01. The
read value presupposes that it was 0xAA.
"@IICR/89/01"
"AA"// It is the character sequence returned from Sub u-com.
For Example: When read-out is performed from Device Address = 0x47 and Sub-Address =
"specification-less ". The read value presupposes that it was 0x23.
"@IICR/47/--""23"// It is the character sequence returned from Sub u-com.
8
PC Control Specification for VP-12S1
User Gamma Table rewriting command
It is the command which rewrites User Gamma Table which has three for R, G, and every B.
Commands are as follows.
"@UG/1/R"............. The command which rewrites R Table of User Gamma Table 1
"@UG/1/G"............. The command which rewrites G Table of User Gamma Table 1
"@UG/1/B"............. The command which rewrites B Table of User Gamma Table 1
"@UG/2/R"............. The command which rewrites R Table of User Gamma Table 2
"@UG/2/G"............. The command which rewrites G Table of User Gamma Table 2
"@UG/2/B"............. The command which rewrites B Table of User Gamma Table 2
"@UG/3/R"............. The command which rewrites R Table of User Gamma Table 3
"@UG/3/G"............. The command which rewrites G Table of User Gamma Table 3
"@UG/3/B"............. The command which rewrites B Table of User Gamma Table 3
Command forms are as follows. CR is "0x0d, 0x0A".
"@UG/1/R" CR// R Table rewriting of User Gamma Table1 is specified.
"0123" CR// ASCII (Hex) character describes Gamma value.
"4567" CR// If it is 0x4567, it will be described as "4567."
"89AB" CR// 512 value per command is transmitted.
"CDEF" CR// Check every one thing which Com Device completed transmission at the
time of transmission of gamma value.
"0123" CR
"Complete" CR // This character sequence is transmitted from VP12.
It is the command that reads User Gamma.
Commands are as follows
"@UG?/1/R" .......... The command which read R Table of User Gamma Table 1
Command forms are as follows
"@UG/1/R" CR// R Table reading of User Gamma Table1 is specified.
// The following is received from VP12
"0123" CR//
"4567" CR// If it is 0x4567, it will be described as "4567."
"89AB" CR// 512 value per command is received.
"0123" CR// The 512th word.
ASCII (Hex) character describes Gamma value.
9
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