VIP - Clocked Video Output - No Vsync Signal (Help Please)

Okay I've tracked down the root cause. There seems to be a bug in the Qsys tool. Even though I set the resolution to 1024x768 in Test Pattern Gen GUI, the resolution was set as 1024x480 in .qsys file. See the section below. After I manually updated the file in a text editor (i.e. changed TPG_MAX_HEIGHT from 480 to 768) and recompiled the project, my setup TPG->CVO works fine now.

I’m not sure why Qsys doesn’t correctly generate the system file. We shouldn't have to manually alter the .qsys file. I sent an email to Altera FAE.

From .qsys File:

============

<module kind="alt_vip_tpg" version="13.1" enabled="1" name="vip_tpg_vga_out">

<parameter name="AUTO_DEVICE_FAMILY" value="Cyclone V" />

<parameter name="CHANNELS_IN_PAR" value="3" />

<parameter name="CTRL_INTERFACE_DEPTH" value="10" />

<parameter name="PARAMETERISATION"><![CDATA[<testPatternGeneratorParams><TPG_NAME>MyPatternGenerator</TPG_NAME><TPG_RUNTIME_CONTROL>0

</TPG_RUNTIME_CONTROL><TPG_BPS>8</TPG_BPS><TPG_MAX_WIDTH>1024</TPG_MAX_WIDTH><tpg_max_height>480</tpg_max_height…</parameter>

</module>