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USB Superspeed Peripherals

yaqi_4776616
New Contributor II

Hi 

Does anyone know more about MIPI data?
Here is the mipi data signal from the sensor I detected with an oscilloscope 

DB0EF91CADCDC034BB991B30BE20B883.jpg

yaqi_4776616_1-1621585594003.png

I found that the correct MIPI Data signal should be as shown in the lower part of the picture above, the reason my signal is not correct is that the platform terminal is not in effect, I would like to know what this means, thank you very much for your help.

Best Regards,

Yaqi

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3 Replies
Hemanth
Moderator
Moderator

Hi Yaqi,

Can you please specify which part of the waveform you think is not correct in your scope capture?

I think low power to high speed transition is happening in your waveform too.

Regards,

Hemanth
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yaqi_4776616
New Contributor II

Hi Hemanth

This is the correct MIPI signal

yaqi_4776616_1-1621816820418.png

The normal MIPI signal will have a voltage change at this position below

yaqi_4776616_0-1621816535696.png

And here's my signal

yaqi_4776616_3-1621816964389.png

And my signal is such that there is no voltage change. The explanation of the cause of this says that the terminal is not connected, I do not know what this means

Best Regards,

Yaqi

 

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YiZ_31
Moderator
Moderator

Hi,

 

May I know what have you done in CX3 side? Have you set the correct sensor configuration in firmware and initialize mipi block?


Regards,
Eddie

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