Date: Sat, 28 Aug 1999 03:29:20 -0500 From: Kris Kirby <kris@airnet.net> To: "Daniel O'Connor" <doconnor@gsoft.com.au> Cc: hackers@freebsd.org Subject: Re: Are the ethernet drivers time dependent? Message-ID: <37C79DE0.8045C21@airnet.net> References: <XFMail.990828172916.doconnor@gsoft.com.au>
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Daniel O'Connor wrote: > > On 28-Aug-99 Kris Kirby wrote: > > I'm going to be building at least three of these units, assuming I get > > the technical issues out of the way. So I'm looking at a cheap (hardware > > and software) way of getting data in and out of a PC with IP support and > > such. It just makes sense in my POV to use a NIC. It's capable of 10 > > Mbps and has most of the circuitry for preparing data for transmission > > on it. If you will, it's a ready to use data pump. > > Ahh I see.. > So you're basically making a ethernet->radio type of thing? > > Or actually mangling the card itself? Both. The problem is that you can't cram a signal moving at 10 Mbps through a radio interface designed for 256K, even if it is bandwidth limited to 256K. I'm hoping the 3C503 is ancient enough that I can slow it down by yanking it's 20.0000 MHz crystal oscillator and feeding it a lower speed signal. I'm going to walk them down to see just how far I can go. After all, 2 Mbps isn't bad, it just requires a little more work. -- Kris Kirby <kris@airnet.net> ------------------------------------------- TGIFreeBSD... 'Nuff said. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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