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about ADV7623 EDID

Question asked by analogzhang on Aug 28, 2014
Latest reply on Sep 2, 2014 by JeyasudhaMuthuPerumal

When we use ADV7623 we meet a issue with EDID,  when we read the EDID which we writed in to the ADV7623, we find there are 2 bytes is different.  did i made some mistake ?

 

 

write

const unsigned char EDID[256] =

{

            //Block 0

            0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, // Addr 0

            0x2C, 0x93, 0x01, 0x00, 0x01, 0x01, 0x01, 0x01, // Addr 8

            0x28, 0x15, 0x01, 0x03, 0x80, 0x39, 0x22, 0x96, // Addr 16

            0x0A, 0xC1, 0x35, 0xA3, 0x57, 0x48, 0x9B, 0x25, // Addr 24

            0x10, 0x46, 0x47, 0xFF, 0xFF, 0x80, 0x31, 0x4F, // Addr 32

            0x45, 0x4F, 0x61, 0x4F, 0x31, 0x59, 0x31, 0x40, // Addr 40

            0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3A, // Addr 48

            0x80, 0x18, 0x71, 0x38, 0x2D, 0x40, 0x58, 0x2C, // Addr 56

            0x45, 0x00, 0x80, 0x68, 0x21, 0x00, 0x00, 0x1E, // Addr 64

            0x00, 0x00, 0x00, 0xFC, 0x00, 0x4B, 0x45, 0x59, // Addr 72

            0x44, 0x49, 0x47, 0x49, 0x54, 0x41, 0x4C, 0x5F, // Addr 80

            0x44, 0x34, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, // Addr 88

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Addr 96

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, // Addr 104

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Addr 112

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xF9, // Addr 120

 

            //Block 1

            0x02, 0x03, 0x1F, 0xF1, 0x50, 0x04, 0x05, 0x03, // Addr 0

            0x02, 0x13, 0x14, 0x12, 0x11, 0x06, 0x07, 0x15, // Addr 8

            0x90, 0x20, 0x1F, 0x21, 0x22, 0x23, 0x09, 0x07, // Addr 16

            0x07, 0x65, 0x03, 0x0C, 0x00, 0x10, 0x00, 0x02,       // Addr 24

            0x3A, 0x80, 0x18, 0x71, 0x38, 0x2D, 0x40, 0x58, // Addr 32

            0x2C, 0x45, 0x00, 0x80, 0x68, 0x21, 0x00, 0x00, // Addr 40

            0x1E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Addr 48

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Addr 56

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Addr 64

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Addr 72

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Addr 80

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Addr 88

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Addr 96

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Addr 104

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // Addr 112

            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x77        // Addr 120

};

 

 

 

 

read:

 

                       

                                0 1   2   3 4   5   6 7   8   9  

                        000 |  00  FF FF  FF  FF FF  FF  00 2C  93

                        010 |  01  00 01  01  01 01  28  15 01  03

                        020 |  80  39 22  96  0A C1  35  A3 57  48

                        030 |  9B  25 10  46  47 FF  FF  80 31  4F

                        040 |  45  4F 61  4F  31 59  31  40 01  01

                        050 |  01  01 01  01  02 3A  80  18 71  38

                        060 |  2D  40 58  2C  45 00  80  68 21  00

                        070 |  00  1E 00  00  00 FC  00  4B 45  59

                        080 |  44  49 47  49  54 41  4C  5F 44  34

                        090 |  00  00 00  10  00 00  00  00 00  00

                        100 |  00  00 00  00  00 00  00  00 00  00

                        110 |  00  10 00  00  00 00  00  00 00  00

                        120 |  00  00 00  00  00 00  01  F9

 

                        0   1 2   3   4 5   6   7 8   9  

                        128 |  02  03 1F  F1  50 04  05  03 02  13

                        138 |  14  12 11  06  07 15  90  20 1F  21

                        148 |  22  23 09  07  07 65  03  0C 00  20

                        158 |  00  02 3A  80  18 71  38  2D 40  58

                        168 |  2C  45 00  80  68 21  00  00 1E  00

                        178 |  00  00 00  00  00 00  00  00 00  00

                        188 |  00  00 00  00  00 00  00  00 00  00

                        198 |  00  00 00  00  00 00  00  00 00  00

                        208 |  00  00 00  00  00 00  00  00 00  00

                        218 |  00  00 00  00  00 00  00  00 00  00

                        228 |  00  00 00  00  00 00  00  00 00  00

                        238 |  00  00 00  00  00 00  00  00 00  00

                        248 |  00  00 00  00  00 00  00  67

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