Tascam_BD-MP1_RS-232C_Ethernet_v104 电路图 维修手册.pdf

TASCAM TASCAM BDBD- -MP1MP1 CONTROL I/O Terminals RS-232C/ETHERNET Protocol Specifications Ver. 1.04 Jul. 2023 TEAC Corporation RadioFans.CN 收音机爱 好者资料库 TASCAM BD-MP1 RS-232C/ETHERNET Protocol Specification 2 TEAC Corporation CAUTION TEAC Corporation (hereafter, TEAC) permits the use of the protocol described in this specification document with the prerequisite that the customer consents to the following protocol use agreement conditions. If you do not consent to the following conditions in the protocol use agreement, you may not use this protocol and should return this document to TEAC. Moreover, be aware that violations of any of the following items in the protocol use agreement is an infringement on the rights of TEAC and could result in the termination of further use and be subject to restitution claims, for example. Protocol use agreement 1. This agreement comes into effect from the time the customer starts use of this protocol. 2. TEAC grants a nonexclusive and nontransferable usage right to the customer in order to develop devices (including software) that are compatible with the covered TASCAM products. 3. The acquisition of this document by the customer does not mean that the customer has acquired any rights, titles or interests in this protocol other than what is specified in this use agreement. The customer should recognize that as a written work belonging to TEAC, this document is protected based on the copyright laws of the signatory nations of the Universal Copyright Convention and the Berne Convention for the Protection of Literary and Artistic Works. Without exception, the intellectual property in this protocol belongs to TEAC or a source that provides it to TEAC. 4. (1) The customer may not make copies of this specifications document. (2) The customer may not transfer this specifications document to a third party without obtaining prior permission from TEAC. (3) Since confidential information that belongs to TEAC is contained in this specifications document, the customer may not disclose it to a third party without obtaining prior permission from TEAC. 5. This specifications document and this protocol are provided as is. TEAC does not provide any guarantee whatsoever that the contents of this specifications document and the protocol are suitable for the specific purpose of the customer or that they are free of error. 6. TEAC cannot respond to customer inquiries about the contents of this specifications document. 7. TEAC will bear no responsibility for any damages (including business losses, business interruption, loss of business data or other financial damages) arising from the use or inability to use this specifications document or this protocol. This applies even if TEAC is informed about the potential for such damage in advance. End of Use Agreement RadioFans.CN 收音机爱 好者资料库 TASCAM BD-MP1 RS-232C/ETHERNET Protocol Specification 3 TEAC Corporation 1. Overview The BD-MP1 (“controlled device”) can be controlled from an external device (“external controller”), such as a computer, through a serial RS-232C and ETHERNET connection. 2. Specifications 2.1. Serial RS-232C 2.1.1. Electrical specifications Standard JIS X-5101 (equivalent to the former JIS-C-6361 and EIA RS-232C standards) Note that this is not compatible with the RS-422 used in professional VTRs. Impedance at receiver When measured with an applied voltage between -3 V and +3 V or between -15 V and +15 V, the DC resistance is between 3k ohms and 7k ohms. Total load capacitance is 2500 pF or less. Open circuit voltage at transmitter 25V or less Open circuit voltage at receiver 2V or less Signal voltage When the open circuit voltage at the receiver is 0 V, the signal voltage is between -5 V and +5 V or between -15 V and +15V against a load impedance between 3k ohms and 7k ohms. Signal discrimination Logic “1”: -3V or less Logic “0”: +3V or more 2.1.2. Communication format Circuit type Asynchronous / Full-duplex Transmission type Digital binary serial Data signal rate (baud rate) 115200 bits/sec Data bits 8 bits Parity bits None Stop bits 1 bit Maximum data length 600 byte (Start character to End character is included.) *Data signal rate, Data bits, Parity bits, and Stop bits are fixed. RadioFans.CN 收音机爱 好者资料库 TASCAM BD-MP1 RS-232C/ETHERNET Protocol Specification 4 TEAC Corporation 2 3 RXD TXD GND RXD TXD GND 1 1/5 2.1.3. Connector pin-out Connecter D-sub 9pin female (Inch screw thread) Terminal pin-out and input/output signals Pin No. In/Out Signal name Description 1 - GND Ground pin 2 Out TxD Data transmitted from this pin 3 In RxD Data received at this pin 4 - NC Not connected 5 - S.GND Signal ground pin 6 - NC Not connected 7 - +5V Power Can use 5V/500mA power supply 8 - NC Not connected 9 - NC Not connected *Note Pin 7 is the output terminal of the 5V power supply, so be careful when wiring the cable. Controlled device（BD-MP1） External controller 2.2. IP Control (Ethernet) Transmission type Full duplex Transfer speed 10 / 100 Mbps TCP port No. 9030 Maximum data length 600 Bytes (Start character to End character is included.) TASCAM BD-MP1 RS-232C/ETHERNET Protocol Specification 5 TEAC Corporation 3. Protocol Overview The Serial Control Protocol consists of three command characters and parameter characters of variable length. Characters are the ASCII Code. O P C O P Parameter Characters （variable length) Command Characters (3 characters, fixed) 3.1 RS-232C Protocol Controller - Device Message Example Disc Tray (Open) ！ 7 O P C O P CR End Character CR Message (Command + Parameter) Destination Unit type Character*1 (7 for Blu-ray Disc Player) Start Character Special Character CR Carriage Return ASCII Code 0 x0D Device - Controller Message Example Status = Play ！ 7 S S T P L Message (Command + Parameter) Source Unit type Character*1 (7 for Blu-ray Disc Player) Start Character *1: Unit Type is the model category ID. The Blu-ray player is 7. TASCAM BD-MP1 RS-232C/ETHERNET Protocol Specification 6 TEAC Corporation 3.2 ETHERNET Protocol Protocol is TCP. (Transmission Control Protocol) Destination Port Number is 9030. (fixed) Controller - Device Message Example Disc Tray (Open) 1st Char 2nd Char 3rd Char 4th Char 5th Char 6th Char 7th Char Last Char ! 7 O P C O P CR End Character Message (Command + Parameter) “CR” Destination/Source Unit Type Character*1 (“7”for Blu-ray Disc Player) Start Character Special Character CR Carriage Return ASCII Code 0 x0D Controller - Device Message Example Status = Play 1st Char 2nd Char 3rd Char 4th Char 5th Char 6th Char Last Char ! 7 S T T P L Message (Command + Parameter) Destination/Source Unit Type Character*1 (“7”for Blu-ray Disc Player) Start Character *1: Unit Type is the model category ID. The Blu-ray player is 7. Note: After the connection is established between the device and the controller, the connection must stay. The controller cannot receive message status notifications from the device if the connection is lost. The device can only connect to one controller at a time. TASCAM BD-MP1 RS-232C/ETHERNET Protocol Specification 7 TEAC Corporation 4. Communication Protocol 4.1. Message Structure There are three kinds of message, COMMAND, REQUEST, and ANSWER /NOTIFICATION. 4.2. ACK(Acknowledge) and NACK(Not Acknowledge) The device sends ACK or NACK to a controller according to the following table. 4.2.1. ACK It is an affirmative reply sent to a controller from a device. When data transfer completes properly, a device notify of that to a controller. 4.2.2. NACK It is a negative reply sent to a controller from a device. When data transfer does not complete properly, a device notify of that to a controller. Name Value(HEX) Transmission Requirement ACK ack (0 x61/0 x63/0 x6B) The device acknowledged that the command was received normally from the controller. NACK nack (0 x6E/0 x61/0 x63/0 x6B) The device received the End Character CR(0 x0D) before receiving the Start Character !(0 x21). The device does not receive ID7(0 x37)just after Start Character!(0 x21). The device receives an unknown character just after !7. The device receives an unknown command just after !7. Parameter is out of range. The size of data is abnormal. 5msec passed before the device receives the next code necessary to complete the command. 4.3. Communication Rules 4.3.1. Initiative of Communication In the communication between a controller and a device, the controller must have the initiative. However, the Status Information notification automatically from the device is an exception. When the device receives a command from the controller, the device returns the following. When receiving the command which doesnt require a status information ACK (ack) When receiving the command which require a status information ACK (ack) + (+) Status information (ANSWER) For the communication failure or an unknown commands etc. NACK (nack) 4.3.2. Communication Sequence The controller must not send any new command after the previous command before the controller receives ACK or NACK, or the timeout (see ”4.3.3. Timeout”) has expired. If the controller cannot check the device control status by status request or message status notification after sending a command, send a new command at intervals of 500msec or more after receiving ACK. A status request command from the controller can be sent by waiting at least 50msec after ACK. TASCAM BD-MP1 RS-232C/ETHERNET Protocol Specification 8 TEAC Corporation 4.3.3. Timeout After the controller sends the message to a device, the controller waits for a reply from the device for 30ms (IP Control) / 300ms (RS-232C). When the controller does not receive a reply over 30ms (IP Control) / 300ms (RS-232C) from the device, the controller sends the same message to the device. However, when the controller does not receive a reply from the device after sending the same message 3 times (that means Tim Out), the controller sends End character CR (0 x0D) to the device. After that, the controller should execute the recovery process such as retry. 4.3.4. ACK Refer to “4.2.1. ACK”. 4.3.5. NACK The device returns a NACK immediately after detecting a failure in the communication with the controller (see ”4.2.2. NACK”). If the controller receives a NACK, it must stop sending the current remaining command immediately and execute the recovery process such as retry. 4.3.6. Command Interval time Interval time between Characters from a controller must be less than 5ms. The device sends NACK when 5msec passed before the device receives the next character code. Interval time between Commands is more than 30ms. In case of less than 30ms as interval time between commands, 1) Executing the subsequent command is not guaranteed. 2) When there are buffer spaces of the device for a command, the device will execute the command. 3) When there is no buffer space of the device for a command, the device does not execute the command, and will send Busy (0BDERBUSY) to the controller instead. Control Command BD-MP1 Controller 30ms 30ms 30ms Retry Retry Timeout Start Character !(0 x21) End Character CR(0 x0D) End Character CR(0 x0D) BD-MP1 Controller Start Character !(0 x21) more than 30ms BD-MP1 Controller Start Character !(0 x21) End Character CR(0 x0D) Start Character !(0 x21) End Character CR(0 x0D) less than 30ms Control Command Control Command TASCAM BD-MP1 RS-232C/ETHERNET Protocol Specification 9 TEAC Corporation 4.4. Basic Control Flow 4.4.1 Device Control Flow The device sends the controller an ACK (Acknowledgement) and executes that command when the device receives a Control command from the controller. The list of the Control command is shown in “Control Command List”. If the device receives an unknown command or an End Character CR (0 x0D) without a Start Character !, it causes transmission failure and the device returns a NACK. Refer to ”4.2.2. NACK” about NACK transmission condition. 4.4.2 Status Request Flow The device returns an ACK and the ANSWER requested by the controller when the device receives the Status Request from the controller. The list of the Status Request and the corresponding answer is shown in “Status Request List” When a device receives Status Request from a controller, the device sends an ACK to the controller. After that, the device gets the current status, and then sends it to the controller. If the device receives an unknown command or an End Character CR (0 x0D) without a Start Character !, it causes transmission failure and the device returns a NACK. Refer to ”4.2.2. NACK” about NACK transmission condition. Control Command BD-MP1 Controller ACK Max 30ms BD-MP1 Controller Status Request ACK Max 30ms x 3 times ANSWER Max 30ms TASCAM BD-MP1 RS-232C/ETHERNET Protocol Specification 10 TEAC Corporation 4.4.3 Status Notification Flow The device notifies of Status Information listed in “Status Information List” whenever the status of the device is changed, such as the transport status, the current track, the storage media status, and other status. The device sends Status Notification to the controller. The controller replies ACK to the device. The device waits for the ACK for Max 30ms. When the device does not receive the ACK from the controller, the device sends the same Status Notification to the controller again. After that, the device does not send the same Status Notification even if it does not receive an ACK from the controller. The Status Information is same as the answer for the Status Information listed in “Status Information List”. BD-MP1 Controller Status Notification Max 30ms ACK BD-MP1 Controller Max 30ms Status Notification No reply Status Notification (again) TASCAM BD-MP1 RS-232C/ETHERNET Protocol Specification 11 TEAC Corporation 5. Command Table Italic characters of command mean parameter. (Ex: Hide MENU “!7OSDXX” - Parameter: XX) *Note-“Track” means “Chapter” during the DVD or BD playback. “Group” means “Title”(DVD or BD playback) and “Folder