Forum Discussion
Altera_Forum
Honored Contributor
15 years agoSource of errors in data from SGDMA
Hello, Sorry to be back so quick but I have spent the last two days on this and am at a loss. I have an SGDMA which is reading 16 bit data from an 8bit SDRAM and streaming this to a vide...
Altera_Forum
Honored Contributor
15 years agoHere is a capture for a typical line with the frame buffer written to 0xFFF0:
http://rapidshare.com/files/417808007/stcap-blueframebuffer.jpg And here is one with an empty frame buffer (0x0): http://rapidshare.com/files/417808438/stcap-blackframebuffer.jpg Can you make any sense of them? To me the first one looks as if the data output by the SGDMA bears little relation to that on m_read.