Tascam Car Video System HD R1 User Manual

TASCAM HD-R1  
Serial Control port  
RS-232C Protocol Specification Document  
Ver. 1.00  
September 2008  
TEAC Corporation  
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TASCAM HD-R1 RS-232C Protocol Specifications  
Controlled device (this unit)  
Control device  
3. Command format  
3.1 Command format overview  
The serial protocol was designed to be able to function using common terminal programs. Therefore, all markers are  
printable 8-bit ASCII characters, and the end of line marker is flexible. Unless otherwise indicated, character strings  
are not case sensitive. Every message has the same structure as indicated below, but some messages do not contain all  
the fields defined below.  
Parameter ID: A string of 1–24 characters specifies the parameter handled, including queries. Spaces before and  
after parameter character strings are ignored. Unless otherwise indicated, character strings are not case sensitive, and  
do not contain equal signs, question marks or exclamation points.  
Command: One character defines what the command does. This is the same for queries.  
Commands include “=” (set value) and “?” (query).  
Value: Strings are of 1 to 24 characters, including query values. Spaces before and after character strings are ignored.  
Unless otherwise indicated, character strings do not distinguish between upper and lower case characters.  
End Marker: One or two character strings. Both a carriage return followed by a line-feed (CR LF) and a line-feed  
(LF) are valid. The HD-R1 always accepts either type of end marker, and it can also send them.  
Below is an example of a typical message. There are no blank spaces inserted after the Parameter ID and Value  
character strings, and one end marker character string is used.  
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TASCAM HD-R1 RS-232C Protocol Specifications  
The command format is as follows.  
Parameter ID  
Cmd  
Value  
End Marker  
Character string Input Source  
=
Analog/Mic  
LF  
(or CR+LF)  
ASCII codes  
(decimal)  
73 110 112 117 116 32 83 111 117 114 61  
99 101  
65 110 97 108 111 103 47 77 10  
105 99  
Conventions  
In this document commands sent to the HD-R1 are indicated as follows.  
Input Source?  
Responses from the HD-R1 are indicated in italic.  
Input Source=Analog/Mic  
3.2 Explanation of command types and concrete examples  
Input commands  
Parameter query  
When the input message command field contains a “?” (question mark), the message is a parameter query command.  
If a parameter is not recognized or does not support this function, the HD-R1 will return an error message. Otherwise,  
it will respond with the current value of the parameter. The following is an example of a command that requests the  
current value of a parameter and the response from the HD-R1.  
Input Source?  
Input Source=Analog/Mic  
Set parameter  
When the input message contains an equal sign in the command field, the message is a set parameter command.  
When the HD-R1 receives a set parameter command, it will set the parameter as requested if conditions make it  
possible and the value is valid. If the parameter is set successfully, the HD-R1 will not respond. If the parameter is  
not recognized or the value is not valid, it will respond with an error. Usually, character strings for the parameter IDs  
and their values match the text shown on the LCD user interface screen. The following is an example of a command  
that sets a parameter.  
Input Source=Analog/Mic  
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Output commands  
Parameter value response  
When the command field of a message being set contains “=” (equal sign), the HD-R1is reporting the current value of  
the parameter. Usually, character strings for parameter IDs and their values match the text shown on the LCD user  
interface screen. For example:  
Input Source?  
Input Source=S/PDIF  
Error responses  
When the command field of a message being sent to it contains “?” (question mark), if the HD-R1 cannot interpret  
the received message it reports an error. For example, the HD-R1 will respond as follows if it receives a parameter  
query for an invalid parameter called “Blah.”  
Blah?  
Blah???  
If the HD-R1 receives an invalid parameter set command, it will respond as follows.  
Blah=Foo  
Blah???Foo  
Set value refusal responses  
If the HD-R1 receives a parameter set command for a valid parameter, but the value is invalid, the HD-R1 will  
respond with “!” (exclamation point) added to the command field.  
Input Source=Blah  
Input Source!Blah  
If the HD-R1 receives a parameter set command for a valid parameter, but the value is missing, the HD-R1 will  
respond as follows.  
Input Source=  
Input Source!Missing Value  
Some parameters can be applied only when the transport is stopped. If you try to change one of these parameters  
when the transport is not stopped, the HD-R1 responds with “*” (asterisk). For example, if you try to change the  
sampling frequency while recording, the HD-R1 will respond as follows.  
WAV Sample Rate=44.1 kHz  
WAV Sample Rate*44.1 kHz  
Special incoming commands  
End markers  
By sending a line feed (LF) or carriage return and line feed (CR LF), the HD-R1 can be informed of the end of a  
message. The HD-R1 can accept this query or command at any time. After turning the power on, the end marker is  
set to CR LF by default. The following are end marker setting commands.  
End Marker=LF  
End Marker=CR LF  
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Protocol width  
Since fixed parameter widths for messages might be preferable depending on the device, the HD-R1 can be set to  
either fixed or variable parameter width using a message. When set to fixed, both the parameter ID and the value are  
padded with blank spaces to make them 24 characters. The HD-R1 can accept this query or command at any time.  
After turning the power on, the parameter width defaults to variable.  
Protocol Width=Fixed  
Protocol Width=Variable  
Logging in  
After turning the power on, the HD-R1 requires the Login password before responding to End Marker and Protocol  
Width commands. The HD-R1’s password is case sensitive, and the default password is “hdr1.” The login password  
can be changed through the front panel.  
Login=hdr1  
Login Succeeded  
Logging Out  
By sending the following command after logging in, you can log out of the session.  
Logout  
Logged Out  
Software Version  
Sending this command causes the HD-R1 to reply with the current software version number.  
Version?  
Version=1.0  
4. Command details  
4.1 Direct transport commands  
Since the potential behavior of keys (PLAY, STOP, etc.) changes depending on the current transport state, sometimes  
they do not respond as intended. Direct transport commands do not depend on the current transport state, however,  
and this can be advantageous in some circumstances. For example, by sending a “Record” direct transport command,  
the HD-R1 should start recording immediately.  
The following is an example of the usual format of a direct transport command.  
Parameter ID  
Cmd Value  
End Marker  
Character string Transport  
=
<Value>  
LF (or CR+LF)  
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TASCAM HD-R1 RS-232C Protocol Specifications  
The following is a list of direct transport commands.  
Value (character string)  
Functions  
Stop  
Stops the transport  
Play  
Starts playback  
Record  
Starts recording  
Ready  
Puts unit in ready to play mode  
Puts unit in ready to record mode  
Moves to first track  
Monitor  
First Track  
Next Track  
Prev Track  
Last Track  
Next Track/Marker  
Prev Track/Marker  
Moves to next track  
Moves to previous track  
Moves to last track  
Moves to next track or next marker  
Moves to previous track or previous marker  
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The following are valid commands when the transport is stopped.  
Value (character string)  
Function  
First Folder/Playlist  
Moves to first folder or first playlist in playback  
mode  
Next Folder/Playlist  
Prev Folder/Playlist  
Last Folder/Playlist  
Moves to next folder or next playlist in playback  
mode  
Moves to previous folder or previous playlist in  
playback mode  
Moves to last folder or last playlist in playback  
mode  
The following are examples of transport state queries.  
Value (character string)  
Meaning  
Transport?  
Asks for the transport state  
Transport=Record  
Example HD-R1 response  
The following are examples of other state queries.  
Value (character string)  
Meaning  
Current Track Number?  
What is the current track number?  
Total Time Elapsed?  
Event Elapsed?  
What is the total elapsed time?  
What is the elapsed time?  
Event Remaining?  
What is the remaining time?  
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TASCAM HD-R1 RS-232C Protocol Specifications  
4.2 Setting commands  
Most of the HD-R1’s settings can be configured remotely. Their parameter IDs and acceptable values are defined in  
the following tables. With some exceptions, all parameters may both be set and queried with a command. Although  
they are not case sensitive, blank spaces within parameter IDs and setting values must be exactly as shown.  
The format for setting commands is the same as for others as shown in the example below.  
Parameter ID  
Command  
Setting value  
End Marker  
Character Auto Cue (example)  
=: set value  
?: query  
<Value>: as necessary  
LF (or CR+LF)  
string  
The following can be set and queried at any time.  
Parameter ID  
Valid values  
Num Of Folders  
Total number of folders (query only)  
Total number of playlists (query only)  
Num Of Playlists  
Repeat  
Off  
On  
Auto Ready  
Auto Cue  
Off  
On  
Off  
-72 dBFS  
-66 dBFS  
-60 dBFS  
-54 dBFS  
-48 dBFS  
-42 dBFS  
-36 dBFS  
-30 dBFS  
-24 dBFS  
Mono Left  
Mono Right  
Mono Summed  
Stereo  
Channels  
WAV Sample Width  
16 Bits  
24 Bits  
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Mono MP3 Bit Rate  
32 kbps  
40 kbps  
64 kbps  
80 kbps  
96 kbps  
112 kbps  
128 kbps  
160 kbps  
64 kbps  
80 kbps  
128 kbps  
160 kbps  
192 kbps  
224 kbps  
256 kbps  
320 kbps  
Off  
Stereo MP3 Bit Rate  
Mark Audio Overs  
Mark Time Interval  
On  
Off  
1 minute  
2 minutes  
3 minutes  
4 minutes  
5 minutes  
10 minutes  
30 minutes  
60 minutes  
512 MB  
1 GB  
Auto Track  
1.5 GB  
1.8 GB  
2 GB  
5 Min  
10 Min  
15 Min  
30 Min  
1 Hour  
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Sync Record  
Off  
-72 dBFS  
-66 dBFS  
-60 dBFS  
-54 dBFS  
-48 dBFS  
-42 dBFS  
-36 dBFS  
-30 dBFS  
-24 dBFS  
Audio File Base Name  
Mark Base Name  
Shuttle Mode  
Base name (up to 20 alphanumeric characters, including  
‘-’, ‘_’ and ‘ ’)  
Base name (up to 20 alphanumeric characters, including  
‘-’, ‘_’ and ‘ ’)  
Track/Mark Only  
Hours  
Minutes  
Seconds  
Tenths  
Time Display  
Total Elapsed  
Total Remaining  
Event Elapsed  
Event Remaining  
English  
Keyboard Type  
Overload Threshold  
Overload Hold  
Japanese  
-0.2 dBFS  
0 dBFS  
Flash  
3 Sec  
6 Sec  
10 Sec  
Infinite  
Peak Decay Rate  
Hold  
Fast Decay  
Medium Decay  
Slow Decay  
Off  
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Meter Decay Rate  
Parallel Mode  
Fast Decay  
Medium Decay  
Slow Decay  
Off  
Direct Play  
Binary Play  
Program Play  
Active Low  
Active High  
Playback  
Input Polarity  
Busy1 Signal  
Recording  
Finished  
Ducking  
CF Door  
Media Full  
Normally Open  
Normally Closed  
Playback  
Busy1 Polarity  
Busy2 Signal  
Recording  
Finished  
Ducking  
CF Door  
Media Full  
Normally Open  
Normally Closed  
Hours: minutes: seconds  
Busy2 Polarity  
System Time  
System Date  
Day/month/year  
The following settings can be queried at any time but can only be changed when the transport is stopped. Attempting  
to change them while the transport is not stopped will result in an error command being sent back with an “*”  
(asterisk).  
Parameter ID  
Folder Name  
Valid values  
Folder name (case sensitive)  
Playlist Name  
Folder Number  
Playlist Number  
Playlist name (case sensitive)  
Folder number  
Playlist number  
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Playback Mode  
All  
Single  
Folder  
Playlist  
Folder Sorting  
Random  
Time  
Name  
On  
Off  
Input Source  
WAV Sample Rate  
Analog/Mic  
S/PDIF  
44.1 kHz  
48 kHz  
82.2 kHz  
96 kHz  
MP3 Sample Rate  
File Format  
Pre-Record  
44.1 kHz  
48 kHz  
WAV  
MP3  
Off  
On  
Ref Level  
-20 dBFS = +4 dBu  
-18 dBFS = +4 dBu  
-16 dBFS = +4 dBu  
-14 dBFS = +4 dBu  
-9 dBFS = +6 dBu  
Off  
Ducking Mode  
Attenuate Input  
Attenuate Playback  
-6 dBFS  
Ducking Threshold  
-12 dBFS  
-18 dBFS  
-24 dBFS  
-30 dBFS  
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Ducking Attenuation  
-3 dB  
-6 dB  
-9 dB  
-12 dB  
-18 dB  
-24 dB  
-Infinity  
0.1 Sec  
0.5 Sec  
1.0 Sec  
1.5 Sec  
2.0 Sec  
2.5 Sec  
3.0 Sec  
3.5 Sec  
4.0 Sec  
4.5 Sec  
5.0 Sec  
Ducking Hold Time  
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4.3 Checking playlists and folders  
These commands allow you to check which playlists and folders can be used currently. The following are concrete  
examples.  
1. Check the total number of playlists  
Use this to check how many playlists are on the currently inserted CF card.  
Query  
HD-R1 response  
Command  
Num Of Playlists?  
Num Of Playlists=3  
This shows that there are three playlists on the CF card.  
2. Check the playlist name  
Please note that playlists are in alphabetical order.  
Query  
HD-R1 response  
Command  
Playlist Name?1  
Playlist Name=Jazz  
This shows that the name of the first playlist is “Jazz”.  
Use this command to check the name of the second playlist.  
Query  
HD-R1 response  
Command  
Playlist Name?2  
Playlist Name=Rock  
This shows that the name of the second playlist is “Rock”.  
3. Name a playlist  
Input a command like the following to set the name of the playlist.  
Command character string  
Playlist Name=Rock  
This will name the playlist unless there is an error.  
4. Add a playlist number  
Input a command like the following to set the number of a playlist.  
Command character string  
Playlist Number=2  
The setting will be made unless there is an error.  
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5. Check the total number of folders  
Query  
HD-R1 response  
Command  
Num Of Folders?  
Num Of Folders=3  
This shows that the total number of folders on the CF card is 3.  
6. Folder name query  
Please note that playlists are in alphabetical order.  
Query  
HD-R1 response  
Command  
Folder Name?1  
Folder Name=Monday  
This shows that the name of the first folder is “Monday”.  
Use this command to check the name of the second folder.  
Query  
HD-R1 response  
Command  
Folder Name?2  
Folder Name= Tuesday  
This shows that the name of the second folder is “Tuesday”.  
7. Name a folder  
Input a command like the following to set the name of the folder.  
Command character string  
Folder Name=Tuesday  
The setting will be made unless there is an error.  
8. Add a number to a folder  
Input a command like the following to set the number of a folder.  
Command character string  
Folder Number=2  
The setting will be made unless there is an error.  
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