Re: [lwip-users] Low Iperf performance of lwip 1.4.1 on STM32 and FreeRTOS

[Claudius Zingerli]

Hi ella,

On 7/3/2013 5:51 AM, ella wrote:
> Can you tell me please exact part number of the Micrel PHY that can
> work in RMII with external 25MHz crystal. I'd like to try it as well.

We plan to use KSZ8863RLL. It can be clocked from 25MHz (xtal,osc) or 
50MHz (osc). No practical experience yet. Anyone using that IC as well?

Regards
Claudius

PS: Using a 50MHz Osc for the DP83848 results in Ping: 0ppm packet loss, 
92us/117us/258us min/avg/max rtt, 92Mbps tcp receive bandwidth using 
Iperf on an STM32F407 clocked at 150MHz connected to a fast Linux PC via 
a Dlink USB-FastEthernet adapter.