26 Feb
2004
26 Feb
'04
7:22 p.m.
What is the performance of the driver inside u-boot?
Get around up to 2 secs delay to "ping alive" and
Yes, the SMSC91C111 has an very long auto-negotation cycle...
downloading a 2.5MByte binary with tftp takes up to 7 secs.
Wow, about 3 MBit -- that's good for the Chip. The SMSC91C111 self
isn't
fast enough. It has an non performant chip design (there are only 2x2KByte for FIFO). My latest tests with an PXA255 a/o NIOS + SMSC91C111 @ 32
bit
bus results the same...
Seems also tftp download is corrupting some packets...at least uclinux for BF533 always ends in panic...but not with same image loaded through VisualDSP...
Maybe should test first with loads (o;
rick