Slowing down Ethernet

KM · 2006-01-30T16:57:35+00:00

I mean really slowing ethernet down.I have a requirement to slow down ethernet so the clock speed is running atabout 100kHz. Everything else should work as is, ie all the usual TCP/IPprotocol stuff.There will no more than about 8 hosts on this slow network.The purpose is to remove as much RF interference as possible, bandwidth is not a problem - small infrequent packets.The server will have a NIC, the hosts will terminate in PiC devicesemulating ethernetMy initial thought would be to have a modified server NIC and then ahardwired hub.Has anyone done this before? I have googled but been singularly unsuccesfulwith this.RegardsMartyn

Jan 30, 2006 22 Replies

Rate this thread:

J. Clarke 20 years ago

Fiber isn't necessarily all that expensive if it doesn't have to be new and shiny.

For this kind of venture ebay is your friend.

Vote

Gary 20 years ago

I'm an FAE for Freescale Semiconductor. We have an Applications Note for PPP on an HC08 class microcontroller which describes exactly the application KM is attempting to solve.

formatting link

The source code can be downloaded from the following Freescale microcontroller product page:

formatting link

for "an2120sw"

If the MC68HC908GR8 doesn't have the right peripheral set for KM, there are plenty of other options to choose from that will run this code with little or no modification.

-Gary

Vote

KM 20 years ago

Thanks all.

You have been very helpful

Regards

Martyn

Vote

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required