Evaluation Board User Guide
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One Technology Way • P .O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog
Advantiv EVAL-ADV7612-7511 Video Evaluation Board
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS.
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Rev. 0 | Page 1 of 8FEATURES
2 HDMI inputs, 1 HDMI output
PC communication via RS-232 or USB interface
Jumperable signal paths for audio and video (jumpers can be removed and signals connected in a diffe
rent manner)
EQUIPMENT NEEDED
Computer with RS-232 (or USB) I/O to accomplish the following:
Send scripts to the board's command line interface
Send commands to the board's repeater software and view software output
Control the board via Advantiv video evaluation software (AVES) application
Update the board's firmware (if desired or necessary)
SOFTWARE NEEDED
Windows OS for controlling the board via AVES application RS-232 software for updating the board firmware (if desired or necessary)
GENERAL DESCRIPTION
The Advantiv® EV AL-ADV7612-7511 video evaluation board (AVEB) is a low cost solution for evaluating the performance of the ADV7612 HDMI receiver and/or the ADV7511 HDMI transmitter.
The evaluation board provides a Blackfin® ADSP-BF524 processor for system control. The ADSP-BF524 offers the potential to process audio (no audio software is included). The evaluation board includes software (firmware) that provides a serial command interface to control the board's functionality. This evaluation board is available in two options. • With HDCP support (EV AL-ADV7612-7511), available only to licensees of HDCP
•
Without HDCP support (EV AL-ADV7612-7511P)
PHOTOGRAPH OF EVALUATION BOARD
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Figure 1. Advantiv EVAL-ADV7612-7511 Video Evaluation Board with Factory Jumper Settings
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Evaluation Board User Guide
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TABLE OF CONTENTS
1 1 .1 1 Photograph of 1 .2 Evaluation Board Artwork 4 Evaluation
.....................................................5 Evaluation 6 Evaluation 7 Upgrading 7 Related Links. (8)
REVISION HISTORY
7/11—Revision 0: Initial Version
Evaluation Board User Guide
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雅芳贿赂门Rev. 0 | Page 3 of 8
EVALUATION BOARD ARTWORK AND COMPONENTS
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Figure 2. Assembly Drawing (Top Side) of the EVAL-ADV7612-7511
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Figure 3. Block Diagram of the EVAL-ADV7612-7511
Table 1. Evaluation Board Hardware Components
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Reference
Designator Function Description
J8, J9 HDMI inputs J8 is HDMI Port A; J9 is HDMI Port B. J1 HDMI output This is the only video output connector.
P1 RS-232 port RS-232 interface to the computer (for user control and debug output).
P2 USB port This USB port can be used instead of RS-232 if the user's computer does not have the RS-232 interface. SW1 Reset This switch resets the BF524 processor.
J2 Power J1 is where the 5 V, 2.5 A power supply is connected.
J7 BF524 JTAG The ICE-100B or the HPUSB-ICE is connected here to reprogram the system flash or to execute source code debugging.优势
合作 JP1, JP2 Port A EDID These jumpers (see Figure 2, lower left) connect the I 2C bus from the Blackfin processor to the EDID EEPROM.
JP3, JP4 Port B EDID These jumpers (see Figure 2, bottom middle) connect the I 2C bus from the Blackfin processor to the EDID EEPROM. J3, J4 Audio/control jumpers
The audio bus can be jumpered among three configurations on these connectors. They also have several control signals available for probing, as well as video syncs and clock.
J5,J6
Video jumpers
The digital video pixel bus signals are jumpered here for easy access and flexibility in evaluation.
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TERMINOLOGY
Throughout this user guide, the following terms are used. Source
A source outputs digital audio/video over a DVI/HDMI
interface. This can be a DVD/Blu-ray player, set-top box, game console, or any other device with a DVI/HDMI output. Sink
A sink accepts video through a DVI/HDMI interface. This is nearly always a display with DVI/HDMI input in the context of this user guide.
Repeater
A repeater refers to the software that runs on the ADSP-BF524 and implements the link between a source and sink with respect to this evaluation board.
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EVALUATION BOARD HARDWARE
EVALUATION BOARD USAGE
The evaluation board can be connected in the ways shown in Figure 3. By default, the video buses of the ADV7612 and ADV7511 are directly connected, and the I 2S and S/PDIF outputs of the ADV7612 are directly connected to the I 2S and S/PDIF inputs of the ADV7511.
Note that the version of the board without HDCP support (EV AL-ADV7612-7511P) does not work wit
h most consumer HDMI sources (for example, Blu-ray players) because they automatically implement HDCP encryption. Therefore, a non-HDCP video source is needed with the non-HDCP version of the board.
An HDCP license is required to purchase an HDCP-enabled board. No license is required to purchase the non-HDCP-enabled board.
The RS-232 command-line interface operates at 115,200 baud, eight data bits, no parity, one stop bit, and no flow control. Typing help via RS-232 lists the commands that can be used to control the board as well as indicate the version of firmware and build date.
If the board is HDCP-enabled, the Analog Devices, Inc., repeater software starts on power-up, allowing an HDMI sink to receive content from an HDMI/HDCP source soon after it is connected. There are three main ways to control the board. • Commands via RS-232
• Repeater software via RS-232
•
Advantiv video evaluation software (AVES)
Commands via RS-232
This mode uses the RS-232 command-line interface. The
ADSP-BF524 powers up to a known reset state and then outputs a prompt. At this point, commands can be entered. Typing help prints a list of commands. Using the appropriate commands, the user can read/write registers in the ADV7612 and ADV7511. All registers are at their reset values. Boards without HDCP enabled (EV AL-ADV7612-7511P) typically use this mode.嘉善团
It is possible to start the repeater software in this mode with the startrep command via RS-232. This only works with HDCP-protected sources on an HDCP-enabled board. A non-HDCP-enabled board can still operate but does not support HDCP .
Repeater Software via RS-232
This mode also offers the RS-232 command-line interface but primarily to control the repeater software. Boards with HDCP support (EV AL-ADV7612-7511) typically start the repeater software on power-up. The repeater software outputs messages via RS-232 as it establishes an encrypted HDMI link and sources, sinks, or formats change. Registers can still be read/written from the command line, but anything that is
written to a register can be overwritten by the repeater software. In this mode, there are additional commands from the repeater itself. All repeater commands are in the rep XXX format, where XXX is the repeater command. A list of repeater commands is displayed using the rep help command. These commands pro-vide information about the state of the repeater, source, and sink.
AVES
AVES is a Windows®-based application that runs on a PC and allows the user to read/write registers on the ADV7612 and ADV7511. It also displays the individual bit fields for each
register and allows the user to modify these individual bit fields. The software supports RS-232, USB, and I 2C (using the Total Phase Aardvark I 2C/SPI host adapter). Information about the video evaluation board can be found on the EV AL-ADV7612-7511 page on EngineerZone at ez.analog/docs/DOC-1713. For a non-HDCP-enabled board, this software may be the easiest way to evaluate the different modes of the ADV7612 and ADV7511.
Additional information about the software can be found on EngineerZone at ez.analog/docs/DOC-1789, where the latest version of the software can also be downloaded.
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