Hi Team,
The customer is experiencing below issue and needs your help.
The ds90ub949 HPD has been raised to 5V. He directly tested the ds90ub949 and ds90ub948 with the Pattern Generator. It is normal to connect the HDMI to the PC, but the HDMI to 949 is not displayed.
View register: 0xc is 0x13, 0x5F, has been 0x00, TDMS clock can not be detected. Customer measured HDMI, clock, not continuous, similar to automatic reset.
ds90ub949 register:
i2cdump -f -y 0 0x0c
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 18 00 00 da 80 00 58 2c 2c 00 ea 04 03 23 30 03 ?..??.X,,.???#0?
10: 00 00 00 88 00 01 fe 1e 7f 7f 01 00 0c 00 01 00 ...?.??????.?.?.
20: 0b 00 25 00 00 00 00 00 01 20 20 a0 00 00 a5 5a ?.%.....? ?..?Z
30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
40: 14 55 00 00 80 00 00 00 00 00 00 00 00 00 00 00 ?U..?...........
50: 97 a1 1e 00 28 0c 3f 00 00 00 92 20 02 06 44 00 ???.(??...? ??D.
60: 22 02 00 00 10 00 00 00 00 00 00 00 00 00 00 00 "?..?...........
70: 48 00 00 00 00 00 00 48 00 00 00 00 00 00 00 00 H......H........
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 a8 00 68 00 00 40 c0 00 00 00 00 00 ff 00 ..?.h..@?.....?.
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
e0: 00 00 a8 00 68 38 00 00 00 00 00 00 00 00 00 00 ..?.h8..........
f0: 5f 55 42 39 34 39 00 00 00 00 00 00 00 00 00 00 _UB949..........
ds90ub948 register:
i2cdump -f -y 0 0x2c
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 58 04 00 f0 fe 1e 00 18 00 00 00 00 00 00 00 00 X?.???.?........
10: 00 00 00 00 00 00 00 00 00 01 00 00 22 15 50 05 .........?.."?P?
20: 00 00 40 20 08 00 83 84 21 00 00 00 00 00 00 00 ..@ ?.??!.......
30: 00 00 90 25 01 00 00 88 00 00 00 05 20 e0 23 00 ..?%?..?...? ?#.
40: 43 03 03 00 60 88 00 00 0f 00 00 08 00 00 63 00 C??.`?..?..?..c.
50: 03 10 00 01 80 00 00 00 00 3f 20 20 00 00 00 00 ??.??....? ....
60: 00 00 00 00 10 00 00 00 00 00 00 00 00 00 00 00 ....?...........
70: 00 00 00 07 07 08 00 00 00 00 00 00 02 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 7d 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 c0 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: 5f 55 42 39 34 38 00 00 00 00 00 00 00 00 00 00 _UB948..........
Customer would like to know what causes this problem?
Thanks,
Annie