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ADV7611: Internal EDID stays disabled

Question asked by khristozov on May 30, 2012
Latest reply on Jan 9, 2014 by melisaelzer

Hello,

I'm trying to setup the ADV7611 to use the internal EDID just like this thread describes http://ez.analog.com/thread/9106

 

After the initialization sequence I always read the flag EDID_A_ENABLE_CPU = 0x0, which means that the internal EDID stays disabled.

I can read back the loaded EDID at address 0xA0, but not over the HDMI cable.

 

Is there any contraint (like timing) which has to be met to get the internal EDID enabled? I already ensured that no other device is connected to the DDC bus.

 

On our hardware the ADV7611 receiver passes the RGB video signal to an FPGA for further processing.

Here is the initialization sequence I use

 

98 FF 80 ; I2C reset

98 F4 80 ; CEC

98 F5 7C ; INFOFRAME

98 F8 4C ; DPLL

98 F9 64 ; KSV

98 FA 6C ; EDID

98 FB 68 ; HDMI

98 FD 44 ; CP

64 77 00 ; Disable the Internal EDID

 

0x6C 00 ... followed by 256 edid bytes

 

64 77 00 ; Set the Most Significant Bit of the SPA location to 0

64 52 20 ; Set the SPA for port B.

64 53 00 ; Set the SPA for port B.

64 70 9E ; Set the Least Significant Byte of the SPA location

64 74 03 ; Enable the Internal EDID for Ports

98 01 06 ; Prim_Mode =110b HDMI-GR

98 00 01 ; Set VID_STD to SVGA 800x600@60Hz

98 02 F2 ; RGB

98 03 40 ; 24 bit SDR 444 Mode 0

98 05 28 ; AV Codes Off

98 06 A6 ; Positive VS & HS polarity

98 0B 44 ; Power up part

98 0C 42 ; Power up part

98 14 7F ; Max Drive Strength

98 15 80 ; Disable Tristate of Pins

98 19 83 ; LLC DLL phase

98 33 40 ; LLC DLL enable

44 BA 01 ; Set HDMI FreeRun

64 40 81 ; Disable HDCP 1.1 features

68 9B 03 ; ADI recommended setting

68 C1 01 ; ADI recommended setting

68 C2 01 ; ADI recommended setting

68 C3 01 ; ADI recommended setting

68 C4 01 ; ADI recommended setting

68 C5 01 ; ADI recommended setting

68 C6 01 ; ADI recommended setting

68 C7 01 ; ADI recommended setting

68 C8 01 ; ADI recommended setting

68 C9 01 ; ADI recommended setting

68 CA 01 ; ADI recommended setting

68 CB 01 ; ADI recommended setting

68 CC 01 ; ADI recommended setting

68 00 00 ; Set HDMI Input Port A

68 83 FE ; Enable clock terminator for port A

68 6F 0C ; ADI recommended setting

68 85 1F ; ADI recommended setting

68 87 70 ; ADI recommended setting

68 8D 04 ; LFG

68 8E 1E ; HFG

68 1A 8A ; unmute audio

68 57 DA ; ADI recommended setting

68 58 01 ; ADI recommended setting

68 75 10 ; DDC drive strength

 

Thanks

Konstantin

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