Stemin SDXI-U2 V1.15 DESCRIPT Operating and maintenance instructions

SDXI-U2

Serial ASCII Data Exchange Interface

General Description

Version 1.15

Date: 08.02.2010

SDXI-U2 Serial ASCII Data Exchange Interface General Description V1.15

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Document version

version date Name Remark

1.14 30.11.2009 -

23.12.2009 R. Wuppinger - initial version: after the SDXI-U2 documentation,

Command set requires Automixer (SW Version 1.24 or higher)

1.15 22.01.2010 R. Wuppinger - command “U2DMxDS=…” changed to “U2DMxDST=...”

- added command “U2DMxDRI=…” to enable and disable the

remote interface (SW Version 1.24 or higher)

Available Documents

Name Remark

SDXI General Description Describes the fundamental protocol parameters and the data elements of the SDXI

protocol. Also contains the description of these telegrams, which are supported by

all SDXI devices, e.g. software and hardware version.

SDXI AXENS + US1 Describes all telegrams used for the AXENS Central Unit (AXCU), the AXENS

talking station (AXTS) and the Salve Clock System US1.

SDXI ASx Describes all telegrams used to control the digital automatic mixer family ASx.

SDXI-U2 Describes all ASCII based telegrams provided by the digital automatic mixer family

ASx.

Distributed by:

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Phone: 0049 – (0)8179 – 931 10

FAX: 0049 – (0)8179 – 931 99

Email: info@stemin.com

Internet: http://www.Stemin.com

SDXI-U2 Serial ASCII Data Exchange Interface General Description V1.15

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Contents

1General description.............................................................................................5

1.1

Protocol SDXI..........................................................................................................5

1.2

Protocol Extension SDXI-U2 (ASCII Mode)............................................................5

1.3

Serial Parameters....................................................................................................5

1.4

Availability of Telegrams........................................................................................5

1.5

Note: Enabling Remote Control.............................................................................5

1.6

Telegram Specification...........................................................................................6

2Commands...........................................................................................................7

2.1

Definition of General Command Parameter ..........................................................7

2.2

Version Commands ................................................................................................8

2.2.1

Software Version („U2DM<d>SW?<CR>“).........................................................................8

2.2.2

Hardware Version („U2DM<d>HW?<CR>“).......................................................................8

2.3

Device Configuration..............................................................................................9

2.3.1

Set Baudrate („U2DM<d>COM<c>BD=<bd>“)...................................................................9

2.3.2

Set Remote Interface („U2DM<d>DRI=<s>“).....................................................................9

2.4

Encoder Commands.............................................................................................10

2.4.1

Encoder Request Value („U2DM<d>EN<e>?<CR>“).......................................................10

2.4.2

Encoder Rotate Left („U2DM<d>EN<e>RL<CR>“)..........................................................10

2.4.3

Encoder Rotate Right („U2DM<d>EN<e>RR<CR>“).......................................................11

2.4.4

Encoder Set Value („U2DM<d>EN<e>=<ev><CR>“) ......................................................11

2.5

Status Commands ................................................................................................12

2.5.1

Request Channel Status („U2DM<d>CS<c>?<CR>“)......................................................12

2.5.2

Set Channel Status Remote Update Time („U2DM<d>CS<c>=<t><CR>“).....................12

2.5.3

Channel Status Set Mute („U2DM<d>EN<c>MU=<mut><CR>“).....................................13

2.5.4

Request Device Status („U2DM<d>DS?<CR>“) ..............................................................13

2.5.5

Set Device Status Remote Update Time („U2DM<d>DST=<t><CR>“) ...........................14

2.6

Virtual Talk Station Commands ...........................................................................15

2.6.1

Set Virtual Talk Station State („U2DM<d>VTS<vts>=<st><CR>“)...................................15

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SDXI-U2 Serial ASCII Data Exchange Interface General Description V1.15

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1 General description

1.1 Protocol SDXI

The SDXI-U2 (Serial Data Exchange Interface) should allow interacting, controlling and

maintaining a variety of different devices. The serial interface was designed without any

higher protocol function like a handshake or something equal. This interface allows the

communication of embedded devices with a PC and/or among each other. Every device, a

PC or the embedded device is responsible for the correct receiving and interpreting of the

telegrams. This refers also to the timing-behaviour, this means that the devices must be able

to react and process to the telegrams during runtime, without validating the timing conditions,

which could lead to the loss of telegrams. A loss of a telegram can also cause a loss of data

because for some telegram a repetition of the telegram is not possible. If the external device

is fast enough and is controlled by an interrupt driven interface there should be no problem to

handle the telegrams.

1.2 Protocol Extension SDXI-U2 (ASCII Mode)

The SDXI protocol includes a second, higher level protocol interface called SDXI-U2

protocol, which allows the user to communicate and control the device with a simple terminal

program using an ASCII-based interface language.

This SDXI-U2 protocol provides a subset of the regular SDXI telegrams respectively SDXI

commands, to make the basic functions available for an easy access via various media

control devices like AMX, Crestron or something similar.

1.3 Serial Parameters

To select a user specific baud rate, you can select a different baud rate using the according

SDXI-U2 telegram. For detailed description, please refer to the manual.

Default parameters:

BAUDRATE: 9600

PARITY: NONE (fixed)

STOPBIT: 1 (fixed)

DATABITS: 8 (fixed)

1.4 Availability of Telegrams

The availability of each telegram depends on optional and device specific software modules

as well.

1.5 Note: Enabling Remote Control

To enable the remote control functionality, it is first necessary to enable the remote

interface of the device by sending a “Set Remote Interface” command to the device!

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1.6 Telegram Specification

The following table shows the structure of the SDXI-U2 telegrams:

Byte

Index Byte

Quantity Meaning value / example

0 1 start byte ‘U’ (0x55H): Start of Telegram

1 1 telegram version ‘2’ (0x32H): signals that a SDXI-U2

telegram follows (ASCII mode)

2 2 … 3 Device Code “DM” (Digital Mixer)

variable 1 … 3 Device Address “1”, …,“999”

variable 2 … 3 Object Code “EN”: Encoder

“COM”: ComPort

variable 1 … 3 Object Address “0”, …,“255”

variable 2 … 3 Command Code / Object Property

Command Codes:

“RR”: encoder turn right

“RL”: encoder turn left

“MU”: mute channel

“BD”: Baudrate

variable 1 Operator

‘=’ set operator

‘?’ request operator

variable 1 … 6 Parameter 1 (optional) “-32767”…”32767”

variable 1 Seperator (optional) ‘,’

variable 1 … 6 Parameter 2 (optional) “-32767”…”32767”

variable 1 Seperator (optional) ‘,’

variable 1 … 6 Parameter 3 (optional) “-32767”…”32767”

variable 1 Seperator (optional) ‘,’

variable 1 … 6 Parameter 4 (optional) “-32767”…”32767”

variabel 1 end byte 0x0d (HEX) End of Telegram CR

Example:

ASCII “U2DM1EN2=35<CR>” sets encoder 2 to value 35 (level)

HEX 55 32 44 4d 31 45 4e 32 3d 33 35 0d

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2 Commands

2.1 Definition of General Command Parameter

Parameter Symbol Range Description

transmission to

the device data will be send/transmitted to the device

(device receives data)

transmission

from the device data will be send/transmitted from the device

(device transmits data)

definition

Shows the telegram definition including abstract

parameters as variables.

Example of the

Shows an example telegram with real values

optional

parameter [<px>] Parameters placed in square brackets are

optional.

device address <d> 0 … 999 0 = reserved for broadcast address

1…999 = device addresses

encoder number <e> 0 … 16 1…10 = automixer 4 / 2 / 2

1…16 = automixer 10 / 2 / 2

encoder value <ev> 0 … 255 encoder value/setting according to the actual

system control selection

system control

selection <scs> value (selection) of the system control encoder:

1: = LEVEL

2: = TREBLE

3: = BASS

4: = LOW CUT

5: = LIMITER

6: = AUTOMIXING

7: = DUCKING

8: = NOM. ATT.

9: = LAST MIC ON

10: = PAN BALANCE

Mute State <mut> 0, 1 Mute state of the according encoder/channel:

0: encoder/channel not muted

1: encoder/channel muted

“ON”-LED State <onl> 0, 1 “ON”-LED state of the according encoder:

0: LED is Off

1: LED is On

“PEAK”-LED

State <pkl> 0, 1 “PEAK”-LED state of the according encoder:

0: LED is Off

1: LED is On

channel number <c> 0 … 16 1…10 = automixer 4 / 2 / 2

1…16 = automixer 10 / 2 / 2

channel level <cl> 0 … 45 Represents the input level at the according

channel

channel status <csx> 00000 …45111 Represents the input level, the ON and the

Peak LED state of channel x in the following

format:

<cl>xxx : first two number represent <cl>

xx<mutl>xx : third number represents <mut>

xxx<onl>x : fourth number represents <onl>

xxxx<pkl>: fifth number represents <pkl>

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2.2 Version Commands

2.2.1 Software Version („U2DM<d>SW?<CR>“)

Dir

Telegram Description

U2DM<d>SW?<CR>

This command requests the actual software

version/info of the device.

U2DM1SW?<CR>

U2DM<d>SW=<p1>,<p2>,<p3><CR> Device returns the software version:

<p1>: SW-Version: (e.g.: 102 = 1.02)

<p2>: Application Type

5: Digital Automixer 4 / 2 / 2

<p3>: OEM Version (reserved)



U2DM1SW=121,5,0<CR

> <p1>: SW-Version: 1.21

<p2>: Application: Digital Automixer 4 / 2 / 2

<p3>: OEM Version: 0 (reserved)

2.2.2 Hardware Version („U2DM<d>HW?<CR>“)

Dir

Telegram Description

U2DM<d>HW?<CR>

This command requests the actual hardware

version/info of the device.

U2DM1HW?<CR>

U2DM<d>SW=<p1>,<p2>,<p3>,<p4>,

<p5><CR> Device returns the hardware version/info:

<p1>: HW-Version

<p2>: FPGA Version VHDL

<p3>: FPGA Version MLAB

<p4>: S-<card nr> (e.g.: 810 = S810)

<p5>: Processor type (reserved)

U2DM1HW=1,1,2,830,0<CR> <p1>: HW-Version = 1

<p2>: FPGA Version VHDL = 1

<p3>: FPGA Version MLAB = 2

<p4>: S<card nr> = S830

<p5>: Processor type = 0 (reserved)

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2.3 Device Configuration

2.3.1 Set Baudrate („U2DM<d>COM<c>BD=<bd>“)

Dir

Telegram Description

U2DM<d>COM<c>BD=<bd><CR>

This command sets the baudrate of the specified

COM port of the device:

<c> = COM port

0: COM port actually connected to the

device

1: COM 1 of the device

2: COM 2 of the device

<bd>= Baudrate

24 (=2400 Baud)

48 (=4800 Baud)

96 (=9600 Baud)

192 (=19200 Baud)

384 (=38400 Baud)

576 (=57600 Baud)

1152 (=115200 Baud)

Note:

these settings can not be changed, they are fix:

Parity: no

Databits: 8

Stopbit(s): 1

U2DM1COM0BD=1152<CR> <p1>: Baudrate = 1152

(the new device baudrate is set to 115200

Baud)

--- no device response

--- no device response

2.3.2 Set Remote Interface („U2DM<d>DRI=<s>“)

Dir

Telegram Description

U2DM<d>DRI=<s><CR>

This command enables or disables the remote

interface of the device. For a remote control of the

device, it is necessary to send this command first

to enable the complete remote control

functionality:

<s>: 1 = enable the remote interface

0 = disable the remote interface

U2DM1DRI?<CR> Request the state of the remote interface

U2DM1DRI=0<CR> returns the state of the remote interface:

<s>: 0 = remote interface disabled

U2DM1DRI=1<CR> Enables the remote interface

<s>: 1 = enables the interface

U2DM1DRI=1<CR> Returns the state of the remote interface:

<s>: 0 = remote interface is enabled

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2.4 Encoder Commands

2.4.1 Encoder Request Value („U2DM<d>EN<e>?<CR>“)

Dir

Telegram Description

U2DM<d>EN<e>?<CR>

This command requests the actual value of the

selected encoder.

<e>: selected encoder

U2DM1EN2?<CR> Request the value of encoder 2

<e>: encoder nr = 2

U2DM<d>EN<e>=<scs>,<ev><CR> returns the settings of the selected encoder:

<scs>: system control selection

<ev>: encoder setting according to the actual

system control selection

<mut>: Mute State

<onl>: “ON”-LED State

<pkl>: “PEAK”-LED State

U2DM1EN2=1,26<CR> returns the settings of the encoder 2:

<scs>: System Control Setting Level (=1)

<ev>: encoder value = 26

<mut>: encoder/channel not muted

<onl>: “ON”-LED is Off

<pkl>: “Peak”-LED is Off

2.4.2 Encoder Rotate Left („U2DM<d>EN<e>RL<CR>“)

Dir

Telegram Description

U2DM<d>EN<e>RL<CR>

This command executes a rotate left action at the

selected encoder.

<e>: selected encoder

U2DM1EN2RL<CR> Executes a rotate left action at encoder 2

U2DM<d>EN<e>=<scs>,<ev>,<mut>,

<onl>,<pkl><CR> returns the settings of the selected encoder:

(see. “Encoder Request Value” command)

U2DM1EN2=1,26,0,0,0<CR> returns the settings of the encoder 2:

<ev> = 26

U2DM1EN2RL<CR> Executes a rotate left action at encoder 2

U2DM1EN2=1,27,0,0,0<CR> returns the settings of the encoder 2:

<ev> = 27

U2DM1EN2RL<CR> Executes a rotate left action at encoder 2

U2DM1EN2=1,28,0,0,0<CR> returns the settings of the encoder 2:

<ev> = 28

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