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ADV7441A and cvbs

Question asked by iainhp on Sep 18, 2011
Latest reply on Sep 23, 2011 by DaveD

We are trying to set up a demonstration using a pair of boards that we developed 2 or 3 years ago for hdmi type functions (720p/1080i). One board has an ADV7441A and the other has an ADV7393 (plus a separate hdmi transmitter). In between is a JPEG2000 encode/decode and an rf transmission system. For the record, hdmi in to hdmi out worked fine from 480p and up.

 

What we are trying to setup at present is 480i CVBS in to 480i CVBS out - not something we even contemplated when designing the boad.  What we have managed to get working thus far is 480i component in to 480i CVBS out. Component is input to the ADV7441A on Ain4, Ain5 and Ain6. What we have tried to setup is CVBS in on Ain6. On the backend of the 7441 we are looking at 20bit 4:2:2.  Register dump as follows (there's been a lot of trying things, but I believe this is the main register dump that we started with):

 

reg 0x00 = 0x05 reg 0x01 = 0xc8 reg 0x02 = 0x04 reg 0x03 = 0x04
reg 0x04 = 0x47 reg 0x05 = 0x00 reg 0x06 = 0x02 reg 0x07 = 0x7f
reg 0x08 = 0x80 reg 0x09 = 0x80 reg 0x0a = 0x00 reg 0x0b = 0x00
reg 0x0c = 0x36 reg 0x0d = 0x7c reg 0x0e = 0x60 reg 0x0f = 0x00
reg 0x10 = 0x0f reg 0x11 = 0x04 reg 0x12 = 0x80 reg 0x13 = 0x69
reg 0x14 = 0x12 reg 0x15 = 0x00 reg 0x16 = 0x00 reg 0x17 = 0x41
reg 0x18 = 0x93 reg 0x19 = 0xf1 reg 0x1a = 0x00 reg 0x1b = 0x00
reg 0x1c = 0x00 reg 0x1d = 0x40 reg 0x1e = 0x00 reg 0x1f = 0x00
reg 0x20 = 0x00 reg 0x21 = 0x00 reg 0x22 = 0x00 reg 0x23 = 0xc0
reg 0x24 = 0x00 reg 0x25 = 0x00 reg 0x26 = 0x00 reg 0x27 = 0x58
reg 0x28 = 0x00 reg 0x29 = 0x00 reg 0x2a = 0x00 reg 0x2b = 0xe1
reg 0x2c = 0xae reg 0x2d = 0xf3 reg 0x2e = 0x13 reg 0x2f = 0xf5
reg 0x30 = 0x25 reg 0x31 = 0x10 reg 0x32 = 0x41 reg 0x33 = 0x84
reg 0x34 = 0x01 reg 0x35 = 0x22 reg 0x36 = 0x00 reg 0x37 = 0xa1
reg 0x38 = 0x80 reg 0x39 = 0xc0 reg 0x3a = 0x07 reg 0x3b = 0x81
reg 0x3c = 0xa8 reg 0x3d = 0xa2 reg 0x3e = 0x6a reg 0x3f = 0xa0
reg 0x40 = 0x90 reg 0x41 = 0x01 reg 0x42 = 0x7e reg 0x43 = 0xa4
reg 0x44 = 0xff reg 0x45 = 0xb6 reg 0x46 = 0x12 reg 0x47 = 0x0a
reg 0x48 = 0x00 reg 0x49 = 0x00 reg 0x4a = 0x00 reg 0x4b = 0x00
reg 0x4c = 0x00 reg 0x4d = 0xef reg 0x4e = 0x08 reg 0x4f = 0x08
reg 0x50 = 0x08 reg 0x51 = 0x24 reg 0x52 = 0x40 reg 0x53 = 0x00
reg 0x54 = 0x00 reg 0x55 = 0x00 reg 0x56 = 0x00 reg 0x57 = 0x08
reg 0x58 = 0x00 reg 0x59 = 0x00 reg 0x5a = 0x00 reg 0x5b = 0x00
reg 0x5c = 0x01 reg 0x5d = 0x00 reg 0x5e = 0x00 reg 0x5f = 0x00
reg 0x60 = 0x00 reg 0x61 = 0x00 reg 0x62 = 0x20 reg 0x63 = 0x00
reg 0x64 = 0x00 reg 0x65 = 0x00 reg 0x66 = 0x00 reg 0x67 = 0x07
reg 0x68 = 0xf0 reg 0x69 = 0x00 reg 0x6a = 0x40 reg 0x6b = 0xc2
reg 0x6c = 0x10 reg 0x6d = 0x00 reg 0x6e = 0x00 reg 0x6f = 0x00
reg 0x70 = 0x00 reg 0x71 = 0x00 reg 0x72 = 0x00 reg 0x73 = 0x10
reg 0x74 = 0x04 reg 0x75 = 0x01 reg 0x76 = 0x00 reg 0x77 = 0xff
reg 0x78 = 0xff reg 0x79 = 0xff reg 0x7a = 0xff reg 0x7b = 0x0f
reg 0x7c = 0xc0 reg 0x7d = 0x00 reg 0x7e = 0x00 reg 0x7f = 0x00
reg 0x80 = 0x00 reg 0x81 = 0xc0 reg 0x82 = 0x04 reg 0x83 = 0x00
reg 0x84 = 0x0c reg 0x85 = 0x03 reg 0x86 = 0x0b reg 0x87 = 0x63
reg 0x88 = 0x5a reg 0x89 = 0x08 reg 0x8a = 0x10 reg 0x8b = 0x40
reg 0x8c = 0x00 reg 0x8d = 0x00 reg 0x8e = 0x00 reg 0x8f = 0x00
reg 0x90 = 0x00 reg 0x91 = 0x00 reg 0x92 = 0x00 reg 0x93 = 0x00
reg 0x94 = 0x00 reg 0x95 = 0x00 reg 0x96 = 0x00 reg 0x97 = 0x00
reg 0x98 = 0x00 reg 0x99 = 0x00 reg 0x9a = 0x00 reg 0x9b = 0x00
reg 0x9c = 0x00 reg 0x9d = 0x00 reg 0x9e = 0x00 reg 0x9f = 0x00
reg 0xa0 = 0x83 reg 0xa1 = 0xff reg 0xa2 = 0x00 reg 0xa3 = 0x00
reg 0xa4 = 0x91 reg 0xa5 = 0x00 reg 0xa6 = 0x00 reg 0xa7 = 0x00
reg 0xa8 = 0x01 reg 0xa9 = 0x01 reg 0xaa = 0x01 reg 0xab = 0x00
reg 0xac = 0x00 reg 0xad = 0x00 reg 0xae = 0x00 reg 0xaf = 0x00
reg 0xb0 = 0x00 reg 0xb1 = 0xf8 reg 0xb2 = 0xd7 reg 0xb3 = 0x19
reg 0xb4 = 0x05 reg 0xb5 = 0x83 reg 0xb6 = 0x00 reg 0xb7 = 0x00
reg 0xb8 = 0x03 reg 0xb9 = 0x33 reg 0xba = 0x20 reg 0xbb = 0x00
reg 0xbc = 0x00 reg 0xbd = 0x00 reg 0xbe = 0x04 reg 0xbf = 0x12
reg 0xc0 = 0x00 reg 0xc1 = 0x00 reg 0xc2 = 0x00 reg 0xc3 = 0x06
reg 0xc4 = 0x80 reg 0xc5 = 0x91 reg 0xc6 = 0x00 reg 0xc7 = 0x00
reg 0xc8 = 0x00 reg 0xc9 = 0x04 reg 0xca = 0x07 reg 0xcb = 0x4a
reg 0xcc = 0x5b reg 0xcd = 0x00 reg 0xce = 0x01 reg 0xcf = 0xb4
reg 0xd0 = 0x00 reg 0xd1 = 0x10 reg 0xd2 = 0xff reg 0xd3 = 0xff
reg 0xd4 = 0x7f reg 0xd5 = 0x7f reg 0xd6 = 0x3e reg 0xd7 = 0x08
reg 0xd8 = 0x3c reg 0xd9 = 0x08 reg 0xda = 0x3c reg 0xdb = 0x9b
reg 0xdc = 0xac reg 0xdd = 0x4c reg 0xde = 0x08 reg 0xdf = 0x08
reg 0xe0 = 0x14 reg 0xe1 = 0x80 reg 0xe2 = 0x80 reg 0xe3 = 0x80
reg 0xe4 = 0x80 reg 0xe5 = 0x25 reg 0xe6 = 0x0f reg 0xe7 = 0x0f
reg 0xe8 = 0x65 reg 0xe9 = 0x14 reg 0xea = 0x63 reg 0xeb = 0x55
reg 0xec = 0x55 reg 0xed = 0x00 reg 0xee = 0x00 reg 0xef = 0x4a
reg 0xf0 = 0x43 reg 0xf1 = 0x0e reg 0xf2 = 0x32 reg 0xf3 = 0x00
reg 0xf4 = 0x15 reg 0xf5 = 0xe0 reg 0xf6 = 0x69 reg 0xf7 = 0x10
reg 0xf8 = 0x00 reg 0xf9 = 0x03 reg 0xfa = 0x20 reg 0xfb = 0x40
reg 0xfc = 0x04 reg 0xfd = 0x00 reg 0xfe = 0xaa reg 0xff = 0x00

 

 

Looking for suggestions as to where we might be going wrong, else status register values to suggest what is working. Thanks.

Outcomes