CX3 Configuration(MIPI)

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JeZy_4330396
Level 2
Level 2

Hi,

I'm trying to configure a 2 MP sensor to able to run at 60 fps, but i get some trouble.

I m able to get video streaming at 30 fps.

I think my problem comes from the mipi configuration.

How to get the V-Blanking and H-blanking ?  These datas change when we switch to 60 fps ?

Thank you,

JZ

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1 Solution

JZ,

Yes, you have to change the output parallel data bus width to 16. Because the the maximum clock at which the parallel output drives is 100 MHz.

Regards,

Sridhar

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4 Replies
KandlaguntaR_36
Moderator
Moderator
Moderator
25 solutions authored 10 solutions authored 5 solutions authored

Hello,

Yes, Blanking times change when you change the fps. Is the sensor manufacturer not provided this information?

Please let me know the CX3 MIPI configuration for 30 fps and 60 fps - CX3 MIPI tool Screenshots.

Regards,

Sridhar

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Thank you for your reply Sridhar !

I just get the response from the manufacturer, so :

CSI Clock : 400 MHz

H-Active : 1600

H-Blanking : 193

V-Active : 1300

V-Blanking : 159

FPS : 60.0

Data : RAW8

We get this screen from the configurator :

pastedImage_0.png

For 30 fps, I use this config :

pastedImage_0.png

Regards,

JZ

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I found a way to make it work by using this configuration :

pastedImage_0.png

Changing the output to 16 bit of the mipi block (I think this allow the GPIF to treat 16 bits in once clock pulse, so we divide by 2 the time).

Thank you,

JZ

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JZ,

Yes, you have to change the output parallel data bus width to 16. Because the the maximum clock at which the parallel output drives is 100 MHz.

Regards,

Sridhar

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