Forum Discussion

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

Issue using SGDMA to frame buffer

Hi, I am buffering frames using an SGDMA. I was wondering if anyone has come across the following problem: After transferring successfully to the ddr2 with several descriptors, the ready...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi, thanks for the extra pointers.

I'm actually using two SGDMAs for writing and reading to/from a frame buffer. It works great now that I have a good handle on it. It's nice to be able to setup the descriptors while the last transfer is still taking place. It's also great that the descriptor memory doesn't have to be very large.