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Altera_Forum
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15 years ago

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

Hi Daixiwen,

Thank you for looking at this. Sorry I didn't realise this forum would allow me to attach the images.

Do those show everything you need?

The Ready/Valid looks about right if I query the FIFO fill level in software it oscillates around 8185-8190 as expected.

Bursting is enabled with a max count of 8 on the data, no bursting on the descriptors (these have their own dedicated on-chip memory).