Part Number: DS90UB935-Q1
Other Parts Discussed in Thread: DS90UB934-Q1,
请问一下有相关DS90UB935-Q1和DS90UB934-Q1的默认serdes吗,目前链路不同,存在许多问题
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Part Number: DS90UB935-Q1
Other Parts Discussed in Thread: DS90UB934-Q1,
请问一下有相关DS90UB935-Q1和DS90UB934-Q1的默认serdes吗,目前链路不同,存在许多问题
Dear Cindy
Currently the i2c address between 934 and 935 can be read, but there is a problem with the final graph, which only shows a few lines. Is there a default serdes configuration for 934 and 935,960 and 395, thank you
60 6D 7F ;coax mode,raw10 mode
60 07 FF ;disable WDT
60 4c 01 ;RX0
60 58 58 ;i2c Pass-through enabled
60 5B 30 ;ser_id
60 5C 30 ;SER_ALIAS_ID
60 5D 6C ;sensor id
60 65 6C ;sensor Alias
;60 1A 8A FrameSync High Time bits 7:0
;60 19 00 FrameSync high time bits 15:8
;60 1B 04 FrameSync Low Time bits 15:8
;60 1C E1 FrameSync Low Time bits 7:0
;60 18 01 FrameSync generation enable
//30 03 4D SER MODE SEL
30 04 05 ;BC_MODE_SELECT
30 10 14 ;DVP_CFG
30 11 04 ;DVP_DT
;30 52 7F
;sensor输出YUV_8
;bandwidth,1920X384X50X8X2X1.25
;935硬件晶体配置为50Mhz
Help evaluate the output of CSI-2, bandwidth 1920X384X50
Hi Xiuyang,
60 07 FF ;disable WDT
We do not recommend disabling the watchdog timer in DES Reg 0x07.
sensor输出YUV_8
Is the datatype YUV422 8-bit mode? If so, you will need to configure whether the deserializer will process the upper or lower 8 bits in Reg 0x7C PORT_CONFIG2 bits[7:6]. I will also need to confirm the data type to help calculate the CSI-2 bandwidth going into the serializer.
30 10 14 ;DVP_CFG
Double check that the frame valid and line valid polarity is correctly set to align with the imager.
Regards,
Cindy
Hi Xiuyang,
I misread the deserializer name, so you are right that 934 does not have a register 0x7C. You can disregard this comment.
When using 935 in backwards compatible mode with 934, the only YUV data formats that the 935 can send are in 10-bit formats. Please see this app note for more information about DS90UB935 / DS90UB953 operating in backwards compatible mode. The below screenshot is from the app note that explains the supported YUV data types. YUV 8-bit formats are not supported.

Regards,
Cindy
Hi Xiuyang,
As mentioned above, 8-bit format is not supported. However, you can use YUV422 10-bit format.
Regards,
Cindy