Linux/AM4379: AM437x no VPFE interrupt from mt9v034 sensor DVP input

TLearn

Part Number: AM4379

Tool/software: Linux

Our project used platform AM4379, I encountered a problem when I was debugging camera sensor MT9V034,with"ISIF_FRMFMT_PROGRESSIVE" input); No VDINT interrupt generated in vpfe.

I had confirmed the timing which was MT9V034 output to AM437x vpfe, VD,HD and PCLK looked like ok. I am confused why it happened?

over 8 years ago

0 Dwarakesh Radhakrishnan over 8 years ago

Guru 13660 points

Hi Ly fan,

I would suggest you to post this question in Sitara forum to get quick response : e2e.ti.com/.../

0 Dwarakesh Radhakrishnan over 8 years ago in reply to Dwarakesh Radhakrishnan

Guru 13660 points

Hi ly fan,

Above settings will be done in ISIF i.e. AM437x is expecting progressive with the above settings, but does the camera sensor send progressive image ? Have you made sure to set progressive at the sensor end ? It is generally done by set_fmt, which will done from user space v4l2 application.

0 TLearn over 8 years ago in reply to Dwarakesh Radhakrishnan

Prodigy 50 points

Hi Dwarakesh

Thanks for the reply! I determined vpfe and mt9v034 are set in the progressive scan.

am437x includes two instantiations of the Video Port Front End (VPFE) for connection to CCD cameras.I found two cameras at the same time, it can be interrupted, but the acquisition of the image is wrong,

If you have any other ideas and/or registers to check, please let me know

Thanks!

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Linux/AM4379: AM437x no VPFE interrupt from mt9v034 sensor DVP input