Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Frame buffer IP

We use 2 frame buffer IPs in our design. 1- The first frame buffer: takes its data (din) from DVI Input IP (VGA_IN_INST) and writes this data into an SDRAM through the SDRAM controller. We d...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

I don't have much experience using SGDMA or Ethernet, so I am not going to comment on your overall block diagram. However, there are a couple things that come to mind:

1. Based on the block diagram, it appears that you are trying to send uncompressed 1080p video over ethernet. If you are trying to actually send a full 24 bits/pixel 60 fps, this would be over 3 Gbits/s of data. You won't be able to send that fast using the Altera TSE.

2. Assuming the rest of your block diagram is okay, I still think you should not be using the frame buffer IP at all. For your second frame buffer, you should be able to use the Altera Frame Reader instead. The frame reader lets you specify the SDRAM address to read from. For your first frame buffer you could write a custom component that just writes the video data to whatever address you want.