Honored Contributor
Honored ContributorHello,
I'm sorry to put the subject up again, but I'm having a lot of trouble with the CVO configuration. And because here is a lot of info about this part I posted here... I'm working together with Peet_2 on this forum to get our design working. we're working on the Cyclone III Nios II evaluation kit (NEEK) and we're trying to implement a Frame reader and a VCO to display data from RAM onto the display (see SOPC image included). But strange things happen. We tried several setups, but our goal was never achieved... -First we tried using the test pattern generator combined with the VCO. Which worked perfectly. -We added a frame reader and used the Video_synced_out with a couple of bridges. It flickered (Avalon ST vs Video pipeline conflict), but we saw our red image (see code in attachment), which prooved the Frame reader was working properly. -When we connect the CVO to the FR, we got no image. Here VCO uses no control port. -So I activated the control port option of the VCO (because you see it's activated in every example I found on the VIP) and tried to set it up, but still no image. The code we used to activate the CVO and FR is included here. If there's anyone around here who could give us some help, it would really be appreciated. We're working on this problem for several weeks now, and some help would be really welcome. You can follow our current progression, and download the complete designs on the following thread: http://www.alteraforum.com/forum/showthread.php?p=90220#post90220 Thanks in advance, Hans and Peet_2
