TI中文支持网Part Number:DS90UB962-Q1
Dear TI support Team:
在之前的某个项目上我们已经调通了962<->933模组。现在新的项目(Soc主芯片不同)使用同样的软件配置和同样的摄像头，但是CSI上的data/clk都没有任何波形。对比962寄存器结果发现新项目0x35 是00，即TX_PORT_PASS为0.LIne lenth 和Line count/Frame count 统统为0.
然后我改用pattern模式来跳过摄像头连接的问题，用示波器测量data lane有数据，但是clk lane还是没有波形。
请问主芯片的CSI controller接收端的配置会导致clk 无波形吗？我理解是没关系的。
现在2个项目软件寄存器配置完全一样，在硬件上有什么排查的方法和建议吗？
PS：目前2个项目的REFCLK都是没有的，但是旧项目能正常工作
need your help，感谢
user6414018：
抱歉，现在pattern模式能正常抓取到图像了，之前测量的时钟是连续时钟模式，幅度太低被认为无信号。 现在的问题是使用同样的摄像头和软件配置，新项目962 CSI端没有任何输出，希望能提供一些排查思路，感谢
,
Kailyn Chen：
您好， 您看下寄存器0x20的配置，RX port和CSI-2 port的硬件连接映射是不是和0x20寄存器的配置相符合？
对于寄存器0x35，TX_PORT_PASS 为零说明TX port 是pass的，RX已经检测到有效的TX数据流过来。
如果FWD_CTL2寄存器disable，那么0x35 bit1读取为零也是正常的。
另外，pattern 测试的话， REFCLK没有提供时钟的话，是否配置为enable internal clock？0XB3的bit[2:1]默认值为00， 为外部时钟源模式。
如果使用内部模式，0XB3的bit[2:1]配置为1. 您再试试。
,
user6414018：
Hello,Kailyn:
当前0x20 配置为0x00,RX port 依次映射为CSI 四个虚拟通道，使用CSI port 0输出。
我重新对比了2个项目的962和933寄存器(内容见附件) 结果如下：
933差异：Fail项目0x0C寄存器显示连接有CRC 错误
962差异：Fail项目 0x4F 0x50显示的 RX port 频率不一致
Line Length/Line count/Frame count都是0
请问这个CRC错误是否就是目前导致无图像传输的原因，接下来要做哪些排查工作。
目前我这边没有头绪，搞不懂为啥配置一样，新项目就不能工作了
。
感谢！
旧项目OK_962_933_dump.txt
旧项目 DS962PORT 1registers console:/ # i2cset -f -y 2 0x3d 0x4c 0x01 b console:/ # i2cdump -f -y 2 0x3d0123456789abcdef0123456789abcdef 00: 7a 00 1e 40 c0 01 00 fe 1c 10 7a 7a 0f 09 00 ffz.?@??.???zz??.. 10: 91 00 00 00 00 00 00 00 01 01 4d 0b b8 00 04 02?.......??M??.?? 20: 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00.?.............. 30: 00 00 01 01 00 01 00 01 00 00 00 00 00 00 00 00..??.?.?........ 40: 00 a9 71 01 00 00 20 00 00 00 00 12 01 13 45 36.?q?.. ....???E6 50: 9f 00 00 00 00 00 00 00 58 00 00 b0 b0 00 00 00?.......X..??... 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 7f aa 88.............??? 70: 1e 2c e4 02 d0 0a 00 c5 00 01 00 00 c1 00 00 00?,????.?.?..?... 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................ 90: 31 30 00 04 ff ff 00 04 00 00 00 00 00 00 00 0010.?...?........ a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................ b0: 1c 3a 14 08 25 00 18 00 ff 33 83 74 80 00 00 00?:??%.?..3?t?... c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................ d0: 00 43 94 04 60 f2 00 02 00 00 00 00 00 00 00 00.C??`?.?........ e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................ f0: 5f 55 42 39 36 30 00 00 00 00 00 00 00 00 00 00_UB960..........旧项目 DS933PORT 1registers console:/ # i2cdump -f -y 2 0x580123456789abcdef0123456789abcdef 00: b0 30 20 c5 80 14 7a 00 00 00 00 00 15 99 35 00?0 ???z.....??5. 10: 17 82 82 00 00 31 80 00 00 00 00 00 00 a0 fe 00???..1?......??. 20: 0e 1c 29 00 00 00 00 00 25 06 00 00 00 00 00 00??).....%?...... 30: 00 00 00 fe 80 01 00 00 00 00 00 00 00 00 00 00...???.......... 40: b0 30 20 c5 80 14 7a 00 00 00 00 00 15 99 35 00?0 ???z.....??5. 50: 17 82 82 00 00 31 80 00 00 00 00 00 00 a0 fe 00???..1?......??. 60: 0e 1c 29 00 00 00 00 00 25 06 00 00 00 00 00 00??).....%?...... 70: 00 00 00 fe 80 01 00 00 00 00 00 00 00 00 00 00...???.......... 80: b0 30 20 c5 80 14 7a 00 00 00 00 00 15 99 35 00?0 ???z.....??5. 90: 17 82 82 00 00 31 80 00 00 00 00 00 00 a0 fe 00???..1?......??. a0: 0e 1c 29 00 00 00 00 00 25 06 00 00 00 00 00 00??).....%?...... b0: 00 00 00 fe 80 01 00 00 00 00 00 00 00 00 00 00...???.......... c0: b0 30 20 c5 80 14 7a 00 00 00 00 00 15 99 35 00?0 ???z.....??5. d0: 17 82 82 00 00 31 80 00 00 00 00 00 00 a0 fe 00???..1?......??. e0: 0e 1c 29 00 00 00 00 00 25 06 00 00 00 00 00 00??).....%?...... f0: 00 00 00 fe 80 01 00 00 00 00 00 00 00 00 00 00...???..........新项目FAILED_962_933_dump.txt
新项目 DS962PORT 1registers console:/ # i2cset -f -y 0 0x3d 0x4c 0x01 b console:/ # i2cdump -f -y 0 0x3d0123456789abcdef0123456789abcdef 00: 7a 00 1e 40 c0 01 00 fe 1c 10 7a 7a 0f 09 00 ffz.?@??.???zz??.? 10: 91 00 00 00 00 00 00 00 01 01 4d 0b b8 00 04 02?.......??M??.?? 20: 00 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00.?.............. 30: 00 00 01 01 00 00 00 00 00 00 00 00 00 00 00 00..??............ 40: 00 a9 71 01 00 00 20 00 00 00 00 12 01 13 04 34.?q?.. ....????4 50: dd 00 00 00 00 00 00 00 58 00 00 b0 b0 00 00 00?.......X..??... 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 7f aa 88.............??? 70: 1e 2c e4 00 00 00 00 c5 00 01 00 00 c1 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: 1c 3a 16 08 25 00 18 00 ff 33 83 74 80 00 00 00?:??%.?.?3?t?... c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................ d0: 00 43 94 04 60 f2 00 02 00 00 00 00 00 00 00 00.C??`?.?........ e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00................ f0: 5f 55 42 39 36 30 00 00 00 00 00 00 00 00 00 00_UB960..........旧项目 DS933PORT 1registers console:/ # i2cdump -f -y 0 0x580123456789abcdef0123456789abcdef 00: b0 30 20 c5 80 14 7a 00 00 00 06 00 17 99 35 00?0 ???z...?.??5. 10: 17 82 82 00 00 31 80 00 00 00 00 00 00 a0 fe 00???..1?......??. 20: 0e 1c 29 00 00 00 00 00 25 06 00 00 00 00 00 00??).....%?...... 30: 00 00 00 fe 80 01 00 00 00 00 00 00 00 00 00 00...???.......... 40: b0 30 20 c5 80 14 7a 00 00 00 06 00 17 99 35 00?0 ???z...?.??5. 50: 17 82 82 00 00 31 80 00 00 00 00 00 00 a0 fe 00???..1?......??. 60: 0e 1c 29 00 00 00 00 00 25 06 00 00 00 00 00 00??).....%?...... 70: 00 00 00 fe 80 01 00 00 00 00 00 00 00 00 00 00...???.......... 80: b0 30 20 c5 80 14 7a 00 00 00 06 00 17 99 35 00?0 ???z...?.??5. 90: 17 82 82 00 00 31 80 00 00 00 00 00 00 a0 fe 00???..1?......??. a0: 0e 1c 29 00 00 00 00 00 25 06 00 00 00 00 00 00??).....%?...... b0: 00 00 00 fe 80 01 00 00 00 00 00 00 00 00 00 00...???.......... c0: b0 30 20 c5 80 14 7a 00 00 00 06 00 17 99 35 00?0 ???z...?.??5. d0: 17 82 82 00 00 31 80 00 00 00 00 00 00 a0 fe 00???..1?......??. e0: 0e 1c 29 00 00 00 00 00 25 06 00 00 00 00 00 00??).....%?...... f0: 00 00 00 fe 80 01 00 00 00 00 00 00 00 00 00 00...???..........
,
Kailyn Chen：
抱歉，您的问题解决了吗？如果还未解决，我这边再去确认一下。
