Poor 8xx SCC Ethernet mode performence..
jimmlin at solomon.com.tw
Tue Jul 16 19:37:39 EST 2002
I was testing SCC ethernet performance at our 850 custom board and found somting interesting.
1. Tested FTP Transfer about 20MB file with 10T hub I got about 250 k bps (someting poor ..)
2. and I found the hhl20 arch/ppc/8xx_io/enet.c source code NOT enable full duplex ..
and I had pmsr added SCC_PMSR_FDE | SCC_PMSR_LPB .. and compiling , tested FTP Transfer again.
I got about 200 Kbps!
I do not understand what is happen? Has anyone experience this?
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