UB949-948串行解串失败，显示器无输出

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1. 自主研发控制器选用UB949芯片对HDMI进行串行（UB948）解串处理，失败，采用的Port端电容根据Datasheet中选择33nF。
2. 采用TI的UB949 EVM 可以实现对948的串行解串成功，对比原理图，较为重大的差异为port端电容使用的是0.1uF，不确定这块到底以谁为准，这个是目前显示器显示不成功的主要怀疑点。（如附件所示）

3. 目前我们屏不亮，不知道原因应该从哪里进行排查，希望TI的工程师能够支持一下。我们的寄存器的值如附件所示。

全屏 TI949_Register.txt 下载

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: 18 00 00 d2 80 00 58 00 00 00 04 00 07 20 00 00    ?..??.X...?.? ..
10: 00 00 00 88 00 01 fe 1e 7f 7f 01 00 00 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 4b 00 00 80 00 00 00 00 00 00 00 00 00 00 00    ?K..?...........
50: 97 a1 1e 00 28 0c 00 00 00 00 dd 20 02 06 44 42    ???.(?....? ??DB
60: 22 02 00 00 10 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 a8 00 68 38 00 60 c0 00 00 00 00 00 ff 00    ..?.h8.`?.......
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..........

5 年多前