RS-232 Control
of the
Advantage MSP11/MSP22
.
Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. (503) 641-7287
an affiliate of Rauland-Borg Corp.
Introduction
This document contains information for the serial control of the Advantage MSP11 and
the Advantage MSP22. Specifically, this document tries to inform those looking to write
their own software controls for the Advantage MSP (in this document, the term
“Advantage MSP” refers to both the MSP11 and MSP22). It is assumed that the reader
has some familiarity with standard programming practices, binary and hexadecimal
numbers, the ASCII character set, asynchronous serial data connections, and RS-232
interfaces.
Decimal, Binary, and "Pseudo-hex" Numbers
This document uses three different numerical notations. The first is the decimal notation.
Whenever it is used, a “d” will appear after the number..
8 Bit binary numbers are the second format used in this paper. These numbers will be
followed by “b” after their usage. If a specific bit is being referred to, the numbers will
be preceded by the word “bit.”
To transmit an 8 bit binary number to the Advantage MSP, hexadecimal notation is used.
Hexadecimal numbers are arrived at by splitting the number into two halves. One half
consists of the first four binary digits (most significant nibble) while the other consists of
the last four binary digits (least significant nibble). 2 nibbles form a byte, which takes on
a decimal value of 0 to 255. Each half is then assigned a hexadecimal value. Since the
binary values range from 0 to 15, usually values from 10 to 15 are given the alphabetic
letters from A to F.
However, the Advantage MSP does not utilize standard hex format. Instead, the
Advantage MSP uses what is known as "pseudo-hex." Simply put, instead of using the
letters A, B, C, D, E and F the Advantage MSP uses : ; < = > and ?, respectively. All it
takes to arrive at the new notation for hex values 10 to 15d is to add 30 to the old ASCII
values. In this paper, [pseudo-hex] will appear after the use of a pseudo-hex character.
The changes are traditional hex are summed up below:
Nibble Conversion
Decima
l
0 0 0 0000
1 1 1 0001
2 2 2 0010
3 3 3 0011
4 4 4 0100
5 5 5 0101
6 6 6 0110
7 7 7 0111
8 8 8 1000
9 9 9 1001
10 A : 1010
11 B ; 1011
12 C < 1100
13 D = 1101
14 E > 1110
15 F ? 1111
Computer Control of the Advantage MSP11/MSP22 1
Hex Pseudo-hex Binary
Serial Interface - Data Communications Parameters
The Advantage MSP communicates through its serial port at four different baud rates:
2400, 9600, 19200, and 38400. The factory default setting is 9600 baud. Changing this
rate is accomplished through BiampWin. The Advantage MSP communicates with 8 data
bits, no parity, and 1 stop bit. The Advantage MSP utilizes a subset of the standard 7-bit
ASCII character set.
Control
The Advantage MSP has an RS-232-compatible serial port which allows it to be
controlled by a computer or by a third party system controller (such as those provided by
AMX® or Crestron®). The Advantage MSP offers the following two methods of serial
control:
Control Button Emulation. This method of control emulates Biamp's standard infrared
remote control transmitter or wall-mount remote control panel. Using this method, single
ASCII characters sent to the device’s serial port cause the device to behave as if a Biamp
remote controller were attached. While Control Button Emulation is simple to perform, it
only provides basic and "one-way" control of the Advantage MSP - it allows the user to
send simple commands to the Advantage MSP, but it does not provide any mechanism
for requesting status information from the Advantage MSP.
Advanced Control. Advanced control provides a command set which allow "two-way"
control of the Advantage MSP. Using Advanced Control commands, a system may
request status information from the device as well as send commands to the device.
Communication occurs with the Advantage MSP using the Advantage MSP’s serial port.
Control Button Emulation
Control Button Emulation is the simplest form of serial control of the Advantage MSP.
This method of operation allows the user to emulate the operation of a standard Biamp
remote control transmitter.
For each button on a standard Biamp remote control, there is a corresponding ASCII
character. In order to emulate a remote control button, the transmitting system simply
transmits the corresponding ASCII character to the Advantage MSP’s serial port. Each
character received by the Advantage MSP will be echoed back out the serial port.
The standard Biamp remote control devices never exceed a transmission rate of 9
characters per second. If the controlling system wishes to perform Control Button
Emulation at a rate of greater than 20 characters per second (50 msec per character), flow
control should be implemented by waiting for the echo of each character before
transmitting the next character. At slower speeds, flow control should not be necessary.
Computer Control of the Advantage MSP11/MSP22 2
The following table summarizes the ASCII character codes for Control Button Emulation
corresponding to each of the 40 remote control buttons supported by the Advantage MSP.
These button codes are also summarized on the ASCII code chart provided at the end of
this manual. The remote control buttons on the standard Biamp transmitter are numbered
from left to right going from bottom to top with the lower left-hand button being button
number 1.
Using BiampWin, it is possible to program the MSP to respond to these commands.
button 1 'B' (0x42) button 21 'V' (0x56)
button 2 'C' (0x43) button 22 'W' (0x57)
button 3 'D' (0x44) button 23 'X' (0x58)
button 4 'E' (0x45) button 24 'Y' (0x59)
button 5 'F' (0x46) button 25 'Z' (0x5A)
button 6 'G' (0x47) button 26 '[' (0x5B)
button 7 'H' (0x48) button 27 '\' (0x5C)
button 8 'I' (0x49) button 28 ']' (0x5D)
button 9 'J' (0x4A) button 29 '^' (0x5E)
button 10 'K' (0x4B) button 30 '_' (0x5F)
button 11 'L' (0x4C) button 31 '`' (0x60)
button 12 'M' (0x4D) button 32 'b' (0x62)
button 13 'N' (0x4E) button 33 'c' (0x63)
button 14 'O' (0x4F) but t on 34 'd' (0x64)
button 15 'P' (0x50) button 35 'e' (0x65)
button 16 'Q' (0x51) button 36 'f' (0x66)
button 17 'R' (0x52) butt on 37 'g' (0x67)
button 18 'S' (0x53) button 38 'h' (0x68)
button 19 'T' (0x54) button 39 'i' (0x69)
button 20 'U' (0x55) butt on 40 'j' (0x6A)
Simple vs Addressable
The simple method of control button emulation is to send any one of the control button
characters through the serial port to the MSP. The disadvantage to this method is that
every device hooked into the MSP will also hear the command. If any of the other
devices have been programmed with this particular character, they will also respond.
To avoid this problem, the MSP allows addressable control button emulation. By using
the control-button-emulation command, on page 22, control button commands are sent
directly to a specific device.
Computer Control of the Advantage MSP11/MSP22 3
Advanced Control
The Advanced Control command set includes more powerful commands to allow more
flexible control of the Advantage MSP. Unlike Control Button Emulation (which is
basically a one-way control mechanism) advanced control commands allow the MSP to
return information through the serial port,. The following list summarizes the commands
available using Advanced Control, including the ASCII command character associated
with each command:
! execute-command
. set-baud
+ sleep-for-10-seconds
/ get-version
Each Advanced Control command requires at least two parameter bytes (four pseudo-hex
characters) to be sent prior to the command character. Each command will be explained
in detail on the following pages.
(execute selected command)
(set communications speed)
(sleep for 10 seconds, ignoring all communication)
(retrieve the model information and firmware version date)
The MSP differ from some other Advantage products in that it uses one command byte
(the ‘!’ character) to control several different functions. The execute-command
incorporates the utility of several commands by having different parameters control its
function.
Some of the commands cause the Advantage MSP to return information through the
serial port. For each string of information returned to the serial port, the Advantage MSP
terminates the string by transmitting the ASCII carriage return character (0x0D represented in this document as ).
As mentioned earlier, the Advantage MSP will echo all characters it receives, regardless
of whether or not the characters are valid commands or parameters. Characters greater
than 0x7F are reserved and should not be transmitted to the serial port. The Advantage
MSP utilizes a subset of the standard ASCII character set. The following characters have
meaning to the Advantage MSP:
Computer Control of the Advantage MSP11/MSP22 4
character hexadecimal operation
ASCII control characters (0x00 - 0x1F) no operation
SPACE
ASCII
!
thru
0
thru
@
A (0x41) no operation
B
thru
a (0x61) no operation
b
thru
k
thru
{
thru
0x80 thru 0xFF (0x80 - 0xFF) RESERVED
character
/
? (0x30 - 0x3F) pseudo-hex parameters for Advanced Control commands
`
j
z (0x6B - 0x7A) no operation
DEL
(0x20) no operation
(0x21 - 0x2F) Advanced Control commands
(0x40) Control Button Emulation Repeat Code
(0x42 - 0x60) Control Button Emulation commands (buttons 01 - 31)
(0x62 - 0x6A) Control Button Emulation commands (buttons 32 - 40)
(0x7B - 0x7F) no operation
Device Type Bitmask, Device Number Bitmask, and Device Model Bitmask
In a system which has more than one Advantage product connected together, the device
type bitmask and device number bitmask command parameters provide a mechanism to
individually address a particular device (or a combination of devices). Every command in
the advanced control command set requires that a device type bitmask and a device
number bitmask be transmitted as the last two parameter bytes before transmitting the
command character itself. These two bitmask parameters bytes provide a device
addressing capability to specify which of the devices in the system should execute the
command. All devices which are not specifically addressed by these two bitmask values
will ignore the command.
The device type bitmask parameter byte supports up to eight distinct device types - one
bit per device type. The eight device types are:
0x01 [hex] (bit 0) Biamp Advantage DRC 4+4 digital remote control
0x02 [hex] (bit 1) Biamp Advantage EQ28X digitally-controlled graphicEQ
0x04 [hex] (bit 2) Biamp Advantage SPM522D stereo preamp/mixer
0x08 [hex] (bit 3) Biamp Advantage PMX84 programmable matrix switch
0x10 [hex] (bit 4) (reserved for future products)
0x20 [hex] (bit 5) (reserved for future products)
0x40 [hex] (bit 6) (reserved for future products)
0x80 [hex] (bit 7) Advanced Products, such as the Biamp Advantage MSP
The Advantage MSP will only respond to advanced control commands if bit 7 of the
device type bitmask parameter byte is a '1'. A command may be directed to more than
one device type in the system by setting all of the corresponding bits in the device type
bitmask to '1's. If only advanced equipment is being addressed (EQ2828/8 DRI, MSP,
and DDL12) 80 is the only bitmask required to use.
The device number bitmask parameter byte supports up to sixty-four distinct device
numbers:
Computer Control of the Advantage MSP11/MSP22 5
0x00 [hex] Select Device Number 0
0x01 [hex] Select Device Number 1
0x02 [hex] Select Device Number 2
0xFF [hex] Select Device Number 63
A particular Advantage MSP will only respond to advanced control commands if the
device number bitmask parameter byte corresponds to its own device number.
For instance, the bitmask 8007 serves to talk only to advance product (80) number 7 (07).
The device model bitmask is a special number that is reserved exclusively for the
Advantage MSP. Unlike the device type bitmask, which can refer to an entire line of
products, the device model bitmask is reserved just for one device. To retrieve this
setting, the get-version command can be used.
Computer Control of the Advantage MSP11/MSP22 6
! execute-MSP-command
description:
The execute-MSP-command byte causes the MSP to change its operating parameters. To
control each of the varied functions of the MSP, there are several MSP command
numbers that are associated with the execute-MSP-command. In the standard format, the
MSP command number is the 4 bytes preceding the checksum , device type, and device
model bitmasks. The command has control over the gain manager, the input and output
levels, the crossovers, delays, gain matrix, and equalizer.
0x28 0x2A gain manager bypass commands
description:
These commands are used to control the gain manager function, allowing simple ways to
turn on and off individual sections of the GM.
syntax of commands:
The commands in this section share the following parameters:
commands:
0x28
40d
0x29
41d
zz = device number
yy = reserved for checksum (no action parameter)
aa = channel number (01 or 02)
bb = byte containing command status
(bit set = under command control, bit cleared = ignored by command)
bit 0 - reserved
bit 1 - Auto Silence Hold status
bit 2 - Soft Gate status
bit 3 - Limiter status
bit 4- Compressor status
bit 5 - Leveler status
bit 6 - reserved
bit 7 - Gain Manager status
Bypass Any GM Block (channel #, bitfield)
Bypasses multiple sections of the GM with one command
Command Structure: bbaa0028yy80zz!
Enable Any GM Block (channel #, bitfield)
Enables multiple sections of the GM with one command
Command Structure: bbaa0029yy80zz!
Computer Control of the Advantage MSP11/MSP22 7
0x2A
42d
examples:
command: response:
02020028008001! (none)
Here, an MSP (device number 1) is instructed to bypass the Auto Silence Hold (bit 1) of
channel 2.
command: response:
0601002900800:! (none)
This command instructs MSP device number 10d (0: [pseudo-hex]) to activate the soft
gate and the ASH (bits 1 and 2) of channel 1.
command: response:
8002002:008002! (none)
Toggle Bypass of Any GM Block (channel #, bitfield)
Toggles multiple GM section bypass settings with one command
Command Structure: bbaa002:yy80zz!
When executed, this command toggles the gain manager status (bit 7) on MSP device 2,
channel 2. Depending on the status of the GM when called, this will either enable or
disable all sections of the GM.
comments:
The gain manager bit will override the status of the other bits. For instance, if this bit is
used to have the gain manager disabled, all sections of the GM will be disabled also.
Although the GM status overrides the settings of the 5 GM sections, it does not overwrite
the 5 sections.
The MSP11 only responds to commands directed to channel 1.
Computer Control of the Advantage MSP11/MSP22 8
0x16 0x1B gain manager threshold commands
description:
This command group is used to set or adjust the threshold levels of the different sections
of the gain manager.
syntax of commands:
The commands in this section share the following parameters:
zz = device number
yy = reserved for checksum (no action parameter)
aa = channel number (01 or 02)
bb = code for threshold
commands:
bits 0 - 7: (range)
0x06 - +18 dBu (-6dBFS)
0x7F - -103 dBu (-127dBFS)
0x16
22d
0x17
23d
0x18
24d
0x19
25d
0x1A
26d
0x1B
27d
Set Limiter Threshold (channel #, Threshold)
Sets Threshold of Limiter section of GM
Command Structure: bbaa0016yy80zz!
Set Compressor Threshold (channel #, Threshold)
Sets Threshold of Compressor section of GM
Command Structure: bbaa0017yy80zz!
Set Leveler Threshold (channel #, Threshold)
Sets Threshold of Leveler section of GM
Command Structure: bbaa0018yy80zz!
Set Soft Gate Threshold (channel #, Threshold)
Sets Threshold of Soft Gate section of GM
Command Structure: bbaa0019yy80zz!
Set Auto Silence Hold Threshold (channel #, Threshold)
Sets Threshold of Auto Silence Hold section of GM
Command Structure: bbaa001:yy80zz!
Set Dynamic Silence Hold Threshold (channel #, Threshold)
Sets Threshold of Dynamic Silence Hold section of GM
Command Structure: bbaa001;yy80zz!
Computer Control of the Advantage MSP11/MSP22 9
examples:
command: response:
0601001600800:! (none)
06 corresponds to a threshold of +18dBu (+24dBu - 6dBu = +18dBu). Thus, this
command sets +18 dBu as the threshold value for the limiter section of channel 1’s of the
gain manager. The device number of this MSP is 10.
comments:
Setting threshold values above +18dBu (0x00 to 0x05) will cause undesirable side
effects.
MSP11 only responds to channel 1 commands.
Computer Control of the Advantage MSP11/MSP22 10
0x1C 0x21 gain manager response time commands
description:
Using these commands adjusts the amount of time it takes for different gain manager
sections to respond to signal input.
syntax of commands:
The commands in this section share the following parameters:
zz = device number
yy = reserved for checksum (no action parameter)
aa = channel number (01 or 02)
bbbbbb= code for response time
bits 0 - 14: (range)
0x1FFF - 8191ms
0x0001 - 1ms
bit 15:
1 - release time
0 - attack time
bits 16 - 23:
0x00 - reserved
commands:
0x1C
28d
0x1D
29d
0x1E
30d
0x1F
31d
0x20
32d
Set Limiter Response Time (channel #, Response Time)
Sets Response Time of Limiter section of GM
Command Structure: bbbbbbaa001<yy80zz!
Set Compressor Response Time (channel #, Response Time)
Sets Response Time of Compressor section of GM
Command Structure: bbbbbbaa001=yy80zz!
Set Leveler Response Time (channel #, Response Time)
Sets Response Time of Leveler section of GM
Command Structure: bbbbbbaa001>yy80zz!
Set Soft Gate Response Time (channel #, Response Time)
Sets Response Time of Soft Gate section of GM
Command Structure: bbbbbbaa001?yy80zz!
Set Auto Silence Hold Response Time (channel #, Response Time)
Sets Response Time of Auto Silence Hold section of GM
Command Structure: bbbbbbaa0020yy80zz!
Computer Control of the Advantage MSP11/MSP22 11
0x21
33d
examples:
command: response:
00807801001<008003! (none)
In this example, the limiter response time for channel 1 is set on MSP number 3. By
breaking the statement up into its bit representation, (0000 0000 1000 0000 0111 1000) it
becomes apparent that the release time has been set to 120 ms.
command: response:
00007901001<008003! (none)
In this example, the limiter response time for channel 1 is set on MSP number 3. By
breaking the statement up into its bit representation, (0000 0000 0000 0000 0111 1001) it
becomes apparent that the attack time has been set to 121 ms.
comments:
Set Dynamic Silence Hold Response Time (channel #, Response Time)
Sets Response Time of Dynamic Silence Hold section of GM
Command Structure: bbbbbbaa0021yy80zz!
MSP11 only responds to channel 1 commands.
Computer Control of the Advantage MSP11/MSP22 12
0x2B 0x31 & 0x76 input/output gain control commands
description:
The commands control the level of the input and output faders for the Advantage MSP.
syntax of commands:
The commands in this section share the following parameters:
zz = device number
yy = reserved for checksum (no action parameter)
aa = channel number (01 or 02)
commands:
0x2B
43d
0x2C
44d
0x2D
45d
0x2E
46d
0x2F
47d
examples:
Mute Output (channel #)
Mutes output for specified channel
Command Structure: aa002;yy80zz!
Unmute Output (channel #)
Unmutes output for specified channel
Command Structure: aa002<yy80zz!
Toggle Output Mute (channel #)
Toggles output mute for specified channel
Command Structure: aa002=yy80zz!
Volume Down (channel #)
Decreases output level by one step
Command Structure: aa002>yy80zz!
Volume Up (channel #)
Increases output level by one step and unmutes output, if muted
Command Structure: aa002?yy80zz!
command: response:
01002<008008! (none)
This unmutes channel 1 of MSP device number 8.
command: response:
01002?008005! (none)
For MSP device number 5, this command increases channel 1’s output level by one step.
If channel 1 is muted, it unmutes it.
Computer Control of the Advantage MSP11/MSP22 13
syntax of command:
This command has the following parameter:
bb - bitfield for volume operations
command:
bit 0 - channel 1 action
0 - no action
1 - perform channel 1 action
bit 1 - channel 1 volume up/down bit
0 - channel 1 volume down
1 - channel 1 volume up
bit 4 - channel 2 action
0 - no action
1 - perform channel 2 action
bit 5 - channel 2 volume up/down bit
0 - channel 2 volume down
1 - channel 2 volume up
0x76
118d
examples:
command: response:
03010076008001! (none)
By breaking up the bitfield (0000 0011), it can be seen that this command sets the
volume of channel 1 up one step. This command is directed to MSP device number 1.
The channel number (aa) is ignored in this command, but must be set to 01 for
comaptibility.
command: response:
33010076008001! (none)
By breaking up the bitfield (0011 0011), it can be seen that this command sets the
volume of channel 1 and 2 up one step. This command is directed to MSP device number
1. The volume both command is not particularily useful for MSP11’s, since the volume
up / down commands provide more appropriate control.
Volume Both (channel #, bitfield)
Performs Output Level adjustments on one or both channels
Command Structure: bbaa0076yy80zz!
Computer Control of the Advantage MSP11/MSP22 14
syntax of command:
This command has the following parameter:
bb = input gain (range)
command:
0x00 - +20dBu
0x14 - 0dBu
0x30
48d
example:
command: response:
02010030008001! (none)
The input gain for channel 1 on MSP device number 1 has been set to +18dBu (+20 dBu 2dBu = +18dBu)
syntax of command:
This command has the following parameter:
bb = output gain
Set Input Gain (channel #)
Sets input gain for specified channel
Command Structure: bbaa0030yy80zz!
bits 00-06
0x00 - no output
0x01 - -48dBu
0x 02 - -42dBu
0x 03 - -36dBu
0x 04 - -30dBu
0x 05 - -28dBu
0x 06 - -26dBu
0x 07 - -24dBu
0x 1F - 0dBu
bit 07 - bypass status
1 - bypassed
0 - enabled
command:
0x31
49d
Set Output Gain(channel #)
Sets Output Gain for specified channel
Command Structure: bbaa0031yy80zz!
Computer Control of the Advantage MSP11/MSP22 15
examples:
command: response:
03010031008001! (none)
This command causes the peak output level of channel 1 to -12 dBu, for MSP device
number 1.
comments:
The MSP11 responds only to channel 1.
Computer Control of the Advantage MSP11/MSP22 16
0x38 0x3B gain matrix commands
description:
The order, levels and connections of the gain matrix are controlled by these commands.
syntax of commands:
The commands in this section share the following parameters:
zz = device number
yy = reserved for checksum (no action parameter)
b = matrix number
0x0 - matrix #1
0x1 - matrix #2
c = branch number
0x0 - input 1 to output 1
0x1 - input 2 to output 1
0x2 - input 3 to output 1 (if units are linked)
0x3 - input 4 to output 1 (if units are linked)
0x4 - input 1 to output 2
0x5 - input 2 to output 2
0x6 - input 3 to output 2 (if units are linked)
0x7 - input 4 to output 2 (if units are linked)
dd = branch gain
0x00 - 0dB
0x7F - -127dB
! = execute-command character
command:
0x38
56d
0x39
57d
Set Branch as Inverting(matrix #, branch #)
Sets the specified branch as inverting
Command Structure: cb010038yy80zz!
Set Branch as Non-Inverting(matrix #, branch #)
Sets the specified branch as non-inverting
Command Structure: cb010039yy80zz!
Computer Control of the Advantage MSP11/MSP22 17
0x3B
59d
examples:
command: response:
11010038008005! (none)
This commands sets the input 2 to output 1 branch as inverting.
command: response:
184002003:008004! (none)
The branch gain for channel 1 has been set to -24dBu (0dB - 24dB = -24dB). The
particular branch for this case is matrix 1, input 1 to output 2.
comments:
As there is no matrix in the MSP11, these commands have no effect.
Set Branch Gain(matrix #, branch #, gain)
Sets Gain of specified branch
Command Structure: ddcb01003;yy80zz!
Computer Control of the Advantage MSP11/MSP22 18
0x48 0x4B delay commands
description:
These commands adjust and set the delay for individual channels of the Advantage MSP.
syntax of commands:
The commands in this section share the following parameters:
zz = device number
yy = reserved for checksum (no action parameter)
aa = channel number (01 or 02)
bbbb = Delay settings
cc = Delay bypass setting
! = execute-command character
0x0000 - no delay
0x0001 - 1/48 ms (20.8us)
0x0002 - 2/48 ms (41.6us)
0xFEFF - 65279/48 ms (1.36 s)
bit 2 - 1 - Bypassed
0 - Enabled
all other bits - reserved
command:
0x48
72d
0x49
73d
0x4B
75d
examples:
command: response:
010048008002! (none)
This command bypasses the delay for channel 1, MSP device number 2.
Bypass Delay(channel #)
Bypasses Delay for specified channel
Command Structure: aa0048yy80zz!
Enable Delay(channel #)
Enables Delay for specified channel
Command Structure: aa 0049 yy 80 zz !
Set Delay(channel #, delay value)
Sets Delay value for specified channel
Command Structure: bbbb aa 004; yy 80 zz !
Computer Control of the Advantage MSP11/MSP22 19
command: response:
0022010048008002! (none)
This command sets channel 1’s delay to .7083 (34/48) ms, for the same MSP as before,
device number 2.
comments:
The MSP11 and MSP22 have propagation delays caused by the A/D and D/A converters
of approximately 1.33 ms. All delay values used with these commands are in addition to
the propagation delay. Setting the delay to 0x0000 will provide 0/48 + 1.33ms of delay.
It is not possible to avoid the 1.33 ms of delay.
MSP11 will only respond to channel 1 commands.
Computer Control of the Advantage MSP11/MSP22 20
0x50 0x51 crossover commands
description:
These commands enable and disable the crossovers for specific channels.
syntax of commands:
The commands in this section share the following parameters:
zz = device number
yy = reserved for checksum
aa = channel number (01 or 02)
! = execute-command character
command:
0x50
80d
0x51
81d
examples:
command: response:
020051008008! (none)
This command enables channel 2’s crossover for MSP device number 8.
comments:
As there is no crossover in the MSP11, these commands have no effect on that device.
By default, channel 1 is the HPF section of the crossover and channel 2 is the LPF
section. This cannot be changed. Each filter can be independently bypassed using the
appropriate channel.
Bypass Crossover(channel #)
Bypasses Crossover section for specified channel
Command Structure: aa0050yy80zz!
Enable Crossover(channel #)
Enables Crossover section for specified channel
Command Structure: aa0051yy80zz!
Computer Control of the Advantage MSP11/MSP22 21
0x60 0x61 eq commands
description:
These commands enable and disable the equalizer for specific channels
syntax of commands:
The commands in this section share the following parameters:
zz = device number
yy = reserved for checksum
aa = channel number (01 or 02)
! = execute-command character
0x60
96d
0x61
97d
examples:
command: response:
010061008005! (none)
This command enables channel 1’s equalizer section of MSP device number 5.
comments:
The MSP11 only responds to channel 1 commands.
Bypass EQ(channel #)
Bypasses EQ section for specified channel
Command Structure: aa0060yy80zz!
Enable EQ(channel #)
Enables EQ section for specified channel
Command Structure: aa0061yy80zz!
Computer Control of the Advantage MSP11/MSP22 22
0x7E 0x78 remote control commands
Description:
Various remote control commands to recall presets or perform remote actions.
Syntax of commands:
The commands in this section share the following parameters:
zz = device number
yy = reserved for checksum (no action parameter)
bb = preset number (1-20)
! = execute-command character
command:
0x7E
126d
syntax of command:
This command has the following parameter:
bbbbbb - button number (0-329)
command:
0x78
120d
Recall System Preset(channel #,preset #)
Recalls all system parameters from the specified preset number to the
current settings
Command Structure: bbaa007>yy80zz!
0d - PowerUp button
1-40d - Normal Buttons
41d - Reserved
42-57d - Logic input closures 1-16
58-73d - Logic input openings 1-16
74-329d - Logic input binary mode 0-255
330-16x106- Reserved
Execute Button (button #)
Executes the actions associated with the specified button definition or
logic input definition.
Command Structure: bbbbbb010078yy80zz!
examples:
command: response:
0501007>008003! (none)
This command recalls preset 5 on the MSP, device number 3.
Computer Control of the Advantage MSP11/MSP22 23
command: response:
000027010078008002! (none)
This command activates button 39 on MSP number 2.
comments:
Computer Control of the Advantage MSP11/MSP22 24
. set-baud
Description:
The set-baud rate command allows the user to specify the baud rate at which the
Advantage MSP operates. The units operate at 2400, 9600, 19200, and 38400 baud. In
order to specify which of these baud rates to use, the Advantage MSP refers to them by
the numbers 0,1,2 and 3; respectively.
Syntax of Command:
rrii80dd.
where
rr = Baud rate
ii = Compliment of selected baud rate
80 = Device type bitmask for Advantage MSP
dd = Device number bitmask
. = set-baud command character
(0 to 3)
(< to ? [pseudo-hex])
(1 to 63d; 00 to 3? [pseudo-hex])
Syntax of response:
no response
Example:
command: response
00??8002. (none)
This command changes the baud of the Advantage MSP (device number 2) to 2400
(mode 00 [pseudo-hex]).
Comments:
Changing the baud value will immediately disconnect the user from the Advantage MSP
until the user has changed the baud of the device connected to serial port also. Therefore,
this command can be dangerous and is not recommended.
:
Computer Control of the Advantage MSP11/MSP22 25
+ sleep-for-10-seconds
Description:
The sleep-for-10-seconds command allows the Advantage MSP to ignore all
communication for 10 seconds,. During this 10 seconds of sleep, the Advantage MSP
will not respond to nor echo any commands that it receives.
Syntax of Command:
80dd+
where
80 = Device type bitmask for the Advantage MSP
dd = Device number bitmask
(1 to 63d; 00 to 3? [pseudo-hex])
+ = sleep-for-10-seconds command character
Syntax of response:
no response
Example:
This example causes the Advantage MSP (device number 11d) to sleep for 10 seconds.
Comments:
command: response:
800;+ (none)
Computer Control of the Advantage MSP11/MSP22 26
/ get-version
Description:
The get-version command causes the Advantage MSP to return the model identification
code and firmware version to the user. The firmware version is the release date, in the
American format mmddyy. It is important to note that the Advantage MSP will return this
date in “decimal” format, not pseudo-hex.
Syntax of Command:
80dd/
where
80 = Device type bitmask for Advantage MSP
dd = Device number bitmask
/ = get-version command character
Syntax of response:
16mmddyy
(1 to 63d; 00 to 3? [pseudo-hex])
where
Example:
This command asks a Advantage MSP, number 13d, (0= [pseudo-hex]) to return its
model i.d. and firmware date. In this case, the model i.d. is 16 [pseudo-hex] and
firmware date is 6/5/98.
Comments:
16 = Model i.d. for Advantage MSP22 [pseudo-hex]
mm = 2 digit decimal month character
dd = 2 digit decimal day character
yy = 2 digit decimal year character
command: response:
800=/ 16060598
Computer Control of the Advantage MSP11/MSP22 27
ASCII Code Chart
with Decimal & Hexadecimal Equivalents and Advantage DRI Commands
000.
001.
002.
003.
004.
005.
006.
007.
008.
009.
010.
011.
012.
013.
014.
015.
NUL
SOH
STX
ETX
EOT
ENQ
ACK
BEL
BS
HT
LF
VT
FF
CR
SO
SI
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
016.
017.
018.
019.
020.
021.
022.
023.
024.
025.
026.
027.
028.
029.
030.
031.
DLE
DC1
DC2
DC3
DC4
NAK
SYN
ETB
CAN
EM
SUB
ESC
FS
GS
RS
US
0x10
032.
(space)
0x11
033.
vol limits
034.
0x12
do-button
035.
0x13
do-volume
036.
0x14
define-preset
037.
0x15
get-preset
038.
0x16
get/set-volume
039.
0x17
040.
0x18
do-logic
041.
0x19
do-preset
042.
0x1A
get-status
043.
0x1B
sleep 10 sec.
044.
0x1C
read memory
045.
0x1D
write memory
046.
0x1E
set defaults
047.
0x1F
get version
!
"
#
$
%
&
'
(
)
*
+
,
-
.
/
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
048.
0
nibble 0x0
049.
1
nibble 0x1
050.
2
nibble 0x2
051.
3
nibble 0x3
052.
4
nibble 0x4
053.
5
nibble 0x5
054.
6
nibble 0x6
055.
7
nibble 0x7
056.
8
nibble 0x8
057.
9
nibble 0x9
058.
:
nibble 0xA
059.
;
nibble 0xB
060.
<
nibble 0xC
061.
=
nibble 0xD
062.
>
nibble 0xE
063.
?
nibble 0xF
0x30
0x31
0x32
0x33
0x34
0x35
0x36
0x37
0x38
0x39
0x3A
0x3B
0x3C
0x3D
0x3E
0x3F
064.
@
repeat code
065.
A
066.
B
button 01
067.
C
button 02
068.
D
button 03
069.
E
button 04
070.
F
button 05
071.
G
button 06
072.
H
button 07
073.
I
button 08
074.
J
button 09
075.
K
button 10
076.
L
button 11
077.
M
button 12
078.
N
button 13
079.
O
button 14
0x40
0x41
0x42
0x43
0x44
0x45
0x46
0x47
0x48
0x49
0x4A
0x4B
0x4C
0x4D
0x4E
0x4F
080.
P
button 15
081.
Q
button 16
082.
R
button 17
083.
S
button 18
084.
T
button 19
085.
U
button 20
086.
V
button 21
087.
W
button 22
088.
X
button 23
089.
Y
button 24
090.
Z
button 25
091.
[
button 26
092.
\
button 27
093.
]
button 28
094.
^
button 29
095.
_
button 30
0x50
0x51
0x52
0x53
0x54
0x55
0x56
0x57
0x58
0x59
0x5A
0x5B
0x5C
0x5D
0x5E
0x5F
096.
`
button 31
097.
a
098.
b
button 32
099.
c
button 33
100.
d
button 34
101.
e
button 35
102.
f
button 36
103.
g
button 37
104.
h
button 38
105.
i
button 39
106.
j
button 40
107.
k
select none
108.
l
select 1
109.
m
select 2
110.
n
select 1,2
111.
o
select 3
0x60
0x61
0x62
0x63
0x64
0x65
0x66
0x67
0x68
0x69
0x6A
0x6B
0x6C
0x6D
0x6E
0x6F
112.
0x70
p
select 1,3
113.
q
select 2,3
114.
0x72
r
select 1,2,3
115.
0x73
s
select 4
116.
0x74
t
select 1,4
117.
0x75
u
select 2,4
118.
0x76
v
select 1,2,4
119.
0x77
w
select 3,4
120.
0x78
x
select 1,3,4
121.
0x79
y
select 2,3,4
122.
0x7A
z
select 1,2,3,4
123.
0x7B
{
124.
125.
0x7C
0x7D
}
126.
0x7E
~
127.
0x7F
DEL
0x71
Computer Control of the Advantage MSP11/MSP22 28
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