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Altera_Forum
Honored Contributor
11 years agoVIP Scaler II Megacore: Garbage at bottom of image
Hi, I'm trying to upscale a 1024x768 image to 1280x1024 using the Altera VIP Scaler II IP Core. I have set up the Clocked Video Input IP core to receive the image signal, then the image is up...
Altera_Forum
Honored Contributor
11 years ago --- Quote Start --- Also, an underflow makes sense if the scaler can't keep up with the CVO, but I definitely don't understand the overflow condition. The backpressure between the VIP cores should prevent that (I think). --- Quote End --- Overflow is from the clocked video input. It can't stop accepting data from the pins, and backpressure only controls Scaler reading from the FIFO. In other words: the scaler isn't accepting data fast enough for the CVI, and isn't producing data fast enough for the CVO.