FX3-UVC: 1080P@60 fps,YUY2

[Anonymous]

Hi,

   

My FPGA receive HDMI video source, and the video format is 1080P@60fps,YUY2.

   

Is this the only way to use "32 bits slave fifo sync" to transfer the video data?

   

What is the 32 bits data format? (D[7:0]  ? , D[15:8] ? , D[23:16] ?, D[31:24]?)

   

I don't know how to assign my video data

       

Thanks

[Anonymous]

Hi,

   

Yes. You need Slavefifo 32 Bit for streaming such a high rate.

   

0:7 -> Y

   

8:15 -> U

   

16:23 -> Y'

   

24:31 -> V

   

Also, please find attached the example project for UVC + SlaveFifo Sync Integration. The state machine is same as the Slavefifo sync Statemachine of the An65974 application note's project.

   

regards,

   

-Madhu Sudhan

[Anonymous]

Hi Madhu Sudhan,

Do you have fpga Corresponding Memo_UVC_with_SlaveFifo_Interface.zip. SlaveFifo2b_ZLP.vhd in An 65974 correspondes？

[Anonymous]

Hi Madhu Sudhan,

   

Thanks for your help.

[Anonymous]

Hi Madhu Sudhan,

   

I have the same problem, I would like to transmit 720@120fps RGB24 images using UVC from my FPGA to a Windows workstation. Following the AN75779 example, where I only use the GPIF IF data bus and 2 address lines for FV and LV, I am able to transmit at 40 fps. But when I increase the speed to 50fps I receive nothing in Virtualdub, the debug frame counter shows sometimes no frames or just 2/3 frames and after that, it shows nothing else.

   

Should I use the SlaveFIFO 32b? If so, how should I connect the LV/FV signals and which FIFO control signals do I need? I understand I need to notify the FX3 when a frame starts and ends in order to generate the UVC header.

   

Thank you,

   

Ieltxu