Intel® Quartus® Prime Software
Intel® Quartus® Prime Design Software, Design Entry, Synthesis, Simulation, Verification, Timing Analysis, System Design (Platform Designer, formerly Qsys)
16679 Discussions

SOPC VIP throughput problem

Altera_Forum
Honored Contributor II
‎03-01-2012 06:08 PM
1,074 Views

hello, 

 

I'm setting up a SOPC system using the VIP IP modules and now I'm bumping into a problem.  

 

The VIP system is mixing two streams into a single 800x600 stream which is clocked out with a 75Hz framerate to screen,  

 

One stream is a 640x480 video input stream from camera: 

 

cvi (640x480) -> framebuffer -> mixer (din_1) 

 

while the other is : 

 

framereader (800x600) -> mixer (din_0, background layer) 

 

However, the output to screen is displaying a single color (this color seems to be dark green) with a black frame on the left side of the screen. 

 

 

Now, if I change either the first or the second stream, replacing with a testpattern generator, I'm able to display the video output to screen, but when I mix the two original streams, there is something going wrong. 

 

I tried increasing the pixel FIFO size of the clocked video output module to 5000 pixels, but this did not help. 

 

Can anyone tell why this i s happening ?
0 Kudos

Link Copied

0 Replies
Reply

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.