[En-Nut-Discussion] Re: [En-Nut-Announce] Version 3.4.2 Available
Rick Collins
ethernut at arius.com
Tue Mar 9 13:53:06 CET 2004
At 07:41 AM 3/9/2004, you wrote:
>The reason I suggested the Philips chip is exactly because it doesn't
>have any external buses, and are suited for small embedded systems.
>That's where I think Nut** fits in perfectly.
>
>I know the OKI chips, and there are many others, but most of these
>have the option of megabytes of Flash and RAM and are probably
>more suited for running Linux (as you suggest yourself).
Maybe I am missing something. How would you connect the LPC210x chip to a
10/100 Ethernet MAC if it has no external data bus? Wouldn't you need to
use something slow like a UART or SPI? How would you adapt the parallel
interface of most MAC chips to a serial interface? Or would you bang a set
of IO pins to emulate a parallel bus?
I guess if you want the smallest possible package, the LPC210x chips are
clearly better. I guess you don't always need the full bandwidth of a
10/100 interface.
Rick Collins
Arius - A Signal Processing Solutions Company
Specializing in DSP and FPGA design URL http://www.arius.com
4 King Ave 301-682-7772 Voice
Frederick, MD 21701-3110 301-682-7666 FAX
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