您好，
我们使用ds90ub941来调一个1920x1080屏的时候， 遇到一个问题， 即如果屏是以又PORT连接的话， i2cdump ds90ub941寄存器的值就很慢，很卡， 如果将屏线拨去， 或者是使用单PORT连接的话， dump就不会卡。
如dump 941的情况如下：
i2cdump -y -f 0 0x0c
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 18 00 00 9a 00 00 59 34 36 01 0b 00 27 30 03 03 ?..?..Y46??.'0??
10: 00 00 00 8f 00 00 fe 9e 7f 7f 01 00 0f 00 07 00 ...?..?????.?.?.
20: 0b 00 25 00 00 00 00 00 01 20 20 a0 00 00 a5 5a ?.%.....? ?..?Z
30: 01 09 80 07 0c 00 00 80 7f 07 00 00 cf 02 81 02 ?????..???..????
40: 04 05 18 00 00 00 00 00 00 00 00 00 00 00 00 8c ???............?
50: 16 00 00 00 02 10 80 02 00 00 c9 03 07 06 44 5d ?...????..????D]
60: 22 02 00 00 10 00 00 00 00 00 00 00 00 00 20 00 "?..?......... .
70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 7f 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 82 00 68 08 00 44 40 00 00 00 00 02 ff 00 ..?.h?.D@....??.
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
e0: 00 00 82 00 68 08 00 00 00 00 00 00 00 02 00 00 ..?.h?.......?..
f0: 5f 55 42 39 34 31 00 00 00 00 00 00 00 00 00 00 _UB941..........
dump 948的情况如下：
i2cdump -y -f 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 33 10 00 00 .........?..3?..
20: 00 00 40 20 08 00 83 84 11 00 00 00 00 00 00 00 ..@ ?.???.......
30: 00 00 90 25 01 00 00 8c 00 00 00 07 20 e0 23 00 ..?%?..?...? ?#.
40: 43 03 03 00 60 88 00 00 0f 80 00 08 00 00 63 00 C??.`?..??.?..c.
50: 03 10 00 01 80 00 00 00 00 7f 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 8c 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..........
请问这个是941哪配置的问题？ 还是线路问题？
谢谢。
