ds90ub947-q1与ds0ub940-q1相关问题贴

user4823313

Intellectual 285 points

TI 工程师你们好

我司在调式940与947时遇到在BIST模式下 ,940芯片PASS LOCK 都为低的情况，具体操作手顺如下。

940端寄存器操作：1.0x34=0x02(PORT1_SEL)

2.0x1d=0x49(D_GPIO0 set H)

3.BISTEN set H

947端没有操作

请帮忙看一下哪里有问题谢谢

7 年多前

0 user4823313 7 年多前

Intellectual 285 points

补充一点查到947寄存器0x0c[4]=0 看描述0为No CRC errors detected during BIST 可940端pass lock依然为L

0 user4823313 7 年多前回复 user4823313

Intellectual 285 points

root@imx6dlwisehmi-hall:/# ./i2cdump.sh
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: 20 80 00 d2 80 00 58 00 00 00 d0 89 07 20 00 00 ?.??.X...??? ..
10: 00 00 00 fa 00 00 fe 1e 7f 7f 09 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 55 00 00 80 00 63 00 00 00 00 00 00 00 00 c0 ?U..?.c........?
50: 16 00 00 00 03 00 00 02 00 00 0d a0 02 06 44 2e ?...?..?..????D.
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 80 00 18 00 00 60 c0 00 00 00 00 00 ff 00 ..?.?..`?.......
d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
e0: 00 00 80 00 08 38 00 00 00 00 00 00 00 00 00 00 ..?.?8..........
f0: 5f 55 42 39 34 37 00 00 00 00 00 00 00 00 00 00 _UB947..........