Post Go back to editing

PC does not recognize ADV7612 IC as external monitor

Category: Software
Product Number: adv7612

Hello.


We are transmitting data from PC to board via HDMI interface.
We are using ADI's ADV7612 IC to receive HDMI data from PC to board.
I connected this board to PC via HDMI cable.
However, PC does not recognize ADV7612 IC of this board as external monitor.
The register setting of ADV7612 IC is as follows.

hdmi_setReg(0x98, 0x0c, 0x00); // power down disable
hdmi_setReg(0x98, 0x15, 0x10); // Pixel bus / Clock / sync active + audio disable[4]
hdmi_setReg(0x98, 0x03, 0x40); // Pixel Output Mode : 24-bit 4:4:4 SDR mode
hdmi_setReg(0x98, 0xF9, 0x64); // Set Repeater slave Address
hdmi_setReg(0x64, 0x74, 0x01); // EDID Enable

Please tell me how to set the registers to recognize it as an external monitor on the PC.

It is not recognized as a monitor even in AVES Blue 3.03.

Please reply to my inquiry.

Thank you.

Parents Reply Children
  • Hi,

        In addition to above point,

        Customer need to take care while using the PC as source.

    Customer need to make sure with below things when bringing up the board,
        1) Disconnect PC from the Part (Chipset)
        2) Run script
        3) Configure EDID
        4) Configure SPA registers (More than one Port)
        5) Plug PC into the Part. This should cause the PC to read the EDID

    Below thread contains an EDID initialization script,
    https://ez.analog.com/message/31879#31879

    Note: PC and Consumer sources(Player’s) are generally do not work unless they see a valid EDID. PC will only recognize a sink when they detect an valid EDID.

    Thanks,

    Poornima