Ben NanoNote

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Issue 59: USB Device Controller: DMA does not work

Reported by w, Apr 3, 2010

The USB Device Controller currently uses only PIO.
Therefore Ethernet over USB is damn slow.

When DMA is enabled in jz4740_udc.c USB does not work at all.
I don't know why.

Sadly g_file_storage gadget seems only to work when DMA is available 
which would be a nice feature on Ben.

Comment 1 by w, Jun 3, 2010

Any comments?

Created: 4 years 21 days ago by w

Updated: 3 years 10 months ago

Status: New

Labels:
Type:Defect
Priority:Medium



interactive