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adv7441a DVI protA can't work

Question asked by Gongfen on Apr 9, 2012
Latest reply on Apr 23, 2012 by GuenterL

Dear Sir,

 

I use adv7441a to capture DVI signal to yuv422. My board use vga and dvi input, and vga is work good, but dvi can't work.

 

I use this config:

##HDMI PORTA out through HDMI ##

:Port A  RGB/YPrPb 444 25Mhz <  f < 160MHz 30Bit IN RGB 444 OUT through HDMI cable Equalizer fS = 96KHz, MCLK = 256Fs:

 

And I use external edid(ATMEL 24c04), and the HPD is 5v, 1024x768 60HZ dvi signal to adv7441a.

I found that If I config reg addr 0x05 to 0x02(VGA), TMDS clock can lock ok.

But config addr 0x05 to 0x6(HDMI), it can't lock TMDS.

And I test free run mode, no help.

 

Here is I read back the register status after I set:

=========================user map=====================

No size specified (using byte-data access)

     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef

00: 00 c8 04 0c 47 06 02 7f 80 80 00 00 36 7c 60 00    .???G?????..6|`.

10: 6a 04 80 74 12 00 00 01 93 f1 00 00 00 40 00 00    j??t?..???...@..

20: 00 00 00 c0 00 00 00 58 00 00 00 e1 ae f2 00 f4    ...?...X...???.?

30: 00 12 41 84 00 02 00 00 80 c0 01 81 58 a2 6a a0    .?A?.?..????X?j?

40: 90 01 7e a4 ff b6 12 00 00 00 00 00 00 ef 08 08    ??~?.??......???

50: 08 24 40 00 00 00 00 08 00 00 00 00 01 00 00 00    ?$@....?....?...

60: 00 00 20 00 00 00 00 07 f0 00 40 e2 10 00 00 00    .. ....??.@??...

70: 00 00 00 10 04 01 00 ff ff ff ff 0d ff 00 00 00    ...???.....?....

80: 00 c0 04 00 0c 03 0b 63 5a 08 10 40 00 00 00 00    .??.???cZ??@....

90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

a0: 03 ff ff 0c 00 00 ff 37 ff c5 09 00 00 11 67 43    ?..?...7.??..?gC

b0: 71 3f ff 10 03 f9 00 00 03 33 a0 00 50 05 1c 12    q?.???..?3?.P???

c0: 00 00 00 00 00 91 00 00 08 04 00 00 5b 00 01 b4    .....?..??..[.??

d0: 00 10 ff ff 7f 7f 3e 08 3c 08 3c 9b ac 4c 00 00    .?..??>?<?<??L..

e0: 14 80 80 80 80 25 04 63 65 14 63 55 55 00 00 4a    ?????%?ce?cUU..J

f0: 43 0e 32 00 3f e0 69 10 00 03 20 40 04 00 aa 00    C?2.??i?.? @?.?.

=========================end user map=====================

 

========================hdmi map\h

No size specified (using byte-data access)

     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef

00: 00 08 00 18 98 20 44 00 f9 0f ff 0f e8 04 8f 3f    .?.?? D.??.?????

10: 07 3d 02 7f 3f ec ff 00 00 02 0a 00 58 04 00 2e    ?=????...??.X?..

20: 00 1a 00 03 03 02 00 00 00 1c 00 0b 00 0b 00 03    .?.???...?.?.?.?

30: 00 03 1f f3 1f f3 00 00 00 00 00 00 42 40 35 63    .?????......B@5c

40: 00 40 7f 1f 00 00 8f 00 00 00 00 37 47 00 35 63    .@??..?....7G.5c

50: 00 04 3d 00 00 00 00 00 00 00 00 00 00 00 00 00    .?=.............

60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

========================end hdmi map\h

 

 

========================user map 1\h

No size specified (using byte-data access)

     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f    0123456789abcdef

00: 00 c8 04 0c 47 06 02 7f 80 80 00 00 36 7c 60 00    .???G?????..6|`.

10: 6a 04 80 74 12 00 00 01 93 f1 00 00 00 40 00 00    j??t?..???...@..

20: 00 00 00 c0 00 00 00 58 00 00 00 e1 ae f2 00 f4    ...?...X...???.?

30: 00 12 41 84 00 02 00 00 80 c0 01 81 58 a2 6a a0    .?A?.?..????X?j?

40: 10 00 00 00 00 00 00 00 00 81 00 00 00 00 00 00    ?........?......

50: 00 00 00 00 00 00 00 00 00 81 00 00 00 00 00 00    .........?......

60: 00 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00    ........0.......

70: 00 00 00 00 00 00 00 00 31 00 00 00 00 00 00 00    ........1.......

80: 40 00 00 00 00 08 00 00 00 00 01 00 00 00 00 00    @....?....?.....

90: 20 00 00 00 00 37 7c 81 41 82 80 80 00 00 80 00     ....7|?A???..?.

a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

c0: 40 00 00 00 00 08 00 04 00 00 00 ff e0 00 04 00    @....?.?....?.?.

d0: 1f fc 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ??..............

e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

 

Can you help me to solve this problem? Thanks.

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