Is there Any Bottleneck in Using USB 2.0 Interface between the CMOS Image Sensor and DM365 to transfer raw HD Real time video data (YCbCr) of 30fps @ 720p?

Padmanathan Jeganathan

Prodigy 205 points

over 13 years ago

0 swami iyer over 13 years ago

Prodigy 220 points

You cannot transfer raw 720p frames over DM365 usb over ISO transport. You could achieve the same using Bulk transport.

regards

swami

0 Padmanathan Jeganathan over 13 years ago in reply to swami iyer

Prodigy 205 points

Please explain, why Isochronous mode won't help to achieve transfer of YCbCr 720p30 video data.

Also, Is there any reference design fro the Interface of a Image sensor with DM365 using its USB 2.0 port.

Am looking to design a smallest wired Camera Sensor (with HD 720p30) PCB to interface with DM365 board using any one of its High Speed ports. Currently we have planned for the USB interface to have the Cable running between DM365 board and the Camera sensor PCB as thinner as possible.

0 swami iyer over 13 years ago in reply to Padmanathan Jeganathan

Prodigy 220 points

I assume in 720p30 raw streaming mode your throughput would be more than 8MBps. Dm365 USB does not support high bandwidth ISO and hence cannot support more than 8MBps on a single ISO EP. That is the reason I mentioned that you would need BULK mode to achieve such a streaming requirement.

regards

swami

0 Bill Lee77 over 10 years ago in reply to swami iyer

Prodigy 60 points

how much is the maximum rate of isochronous transmission by DM365?

8MBps?

Processors

Processors forum

Is there Any Bottleneck in Using USB 2.0 Interface between the CMOS Image Sensor and DM365 to transfer raw HD Real time video data (YCbCr) of 30fps @ 720p?