11-10-2017 04:38 AM
I'm using AXI4-Stream to Video Out IP (4.0) with Vivado 2015.4. I found out the locked is done (active High), overflow and underflow are low, vtg_ce is high. In the status bits, I found out idle(status) is low. status [1,2,8,9] are all high.
BUT, there is no output from the video output signals (vid_vsync, vid_hsync, vid_active_video and the vid_data) active. They keep low always.
11-10-2017 05:00 AM
I rechecked and found out in VTC (6.1) parameter setting, I didn't check the item "Synchronize Generator to Detector or to fsync_in". I checked it, then found out AXI4-Stream to Video Out IP locked came to inactive and there is positive pulse of underflow signal at the beginning of the first line of each frame.
Still looking for solution...
11-13-2017 03:34 AM
Could you show a sreenshot of the configuration of the AXI4-Stream to Video Out IP? And a screenshot of your design?
Did you check the output from your video timing controller (I guess you have used a VTC, else this is your issue)?
Hope that helps,
11-13-2017 09:34 AM
Thanks so much for your reply and question. Here I'd like to show the the picture I just captured as below. I had VTC designed in and I did check the output of the VTC. It worked very well with active output of hs/vs/activevideo/data.
11-14-2017 08:21 AM
Could you try to connect directly the video timing_out interface from the VTC to the timing_in interface from the video_out IP? (without connetcing net by net)
Also I usually leave aclken, video_out_ce unconnected. Please check that their are connected to 1.