DVO2 output nonstandard image size?

Kuve Ma

Dear Sirs,

My custom want to display nonstandard image size on digital channel. Is it possible to do on DVO2 channel? For example, the size width is 700 and height is 800 pixel.

If you have any suggestion, I will appreciate your help.

Kuve

over 10 years ago

0 Brijesh Jadav over 10 years ago

TI__Guru**** 430495 points

Yes, it should be supported as long as frame size is less than or equal to 1920x1080 and pixel clock is less than or equal to 165MHz.

Regards,

Brijesh

0 Steve Clynes over 10 years ago

TI__Mastermind 43875 points

Yes, check the HDVPSS documentation which should have been included in your software installation and search for "timings" sysfs entries.

BR,

Steve

0 Kuve Ma over 10 years ago in reply to Steve Clynes

Intellectual 460 points

Thank you for your reply. I use hdvpss_01_00_01_42 and study to modify display resolution limitation for a few days. I find it is not easy to modify. Could you point out which key part needed to modify? Thank you.

Kuve

0 Brijesh Jadav over 10 years ago in reply to Kuve Ma

TI__Guru**** 430495 points

As Steve mentioned, you could look into the sysfs entry timings on Linux to change to any resolution.

Regards,

Brijesh

0 Kuve Ma over 10 years ago in reply to Brijesh Jadav

Intellectual 460 points

Hi Brijesh,

My OS is SYS/BIOS and I use mInfo.standard = FVID2_STD_CUSTOM setting to reach my goal. Thank you.

Kuve

0 Brijesh Jadav over 10 years ago in reply to Kuve Ma

TI__Guru**** 430495 points

Hi,

In this case, Set the standard to CUSTOM and set all the timing information in mInfo structure. You will need to set front porch, back porch, sync width for the horizontal and vertical direction. And also set the pixel clock correctly in the system driver.

Rgds,

Brijesh

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DVO2 output nonstandard image size?