AnsweredAssumed Answered

ADV7627 EDID for EVB

Question asked by AkiraO on Mar 5, 2018
Latest reply on Mar 8, 2018 by AkiraO

Hello,

 

We received a question about EDID of ADV7627. The customer can send EDID to connected equipment on RxA, but cannot send EDID to connected equipment on RxB to RxE by following procedure and using ADV7625 evaluation board. Are there any necessary settings for sending EDID to all Rx ports?

 

IO 0xB1:0x2A
HDMI_Rx1_Repeater 0x74:0x00

HDMI_Rx1_Repeater 0x52:0x10 (higher byte value of SPA of VSDB in CEA)
HDMI_Rx1_Repeater 0x53: lower byte value of SPA of VSDB in CEA + 0x10

HDMI_Rx1_Repeater 0x54:0x10 (higher byte value of SPA of VSDB in CEA)
HDMI_Rx1_Repeater 0x55: lower byte value of SPA of VSDB in CEA + 0x20

HDMI_Rx1_Repeater 0x56:0x10 (higher byte value of SPA of VSDB in CEA)
HDMI_Rx1_Repeater 0x57: lower byte value of SPA of VSDB in CEA + 0x30

HDMI_Rx1_Repeater 0x58:0x10 (higher byte value of SPA of VSDB in CEA)
HDMI_Rx1_Repeater 0x59: lower byte value of SPA of VSDB in CEA + 0x40

HDMI_Rx1_Repeater 0x61: check sum value of CEA - 0x10
HDMI_Rx1_Repeater 0x62: check sum value of CEA - 0x20
HDMI_Rx1_Repeater 0x63: check sum value of CEA - 0x30
HDMI_Rx1_Repeater 0x64: check sum value of CEA - 0x40

HDMI_Rx1_Repeater 0x74:0x1F

 

The customer can send EDID to all Rx ports by this procedure and their board. But he can not send EDID to RxB to RxE by this procedure and ADV7625 evaluation board.

 

Best regards,

Akira

Outcomes