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RE: [lpc2000] Re: olimex LPC-E2294 with ethernet

2005-02-07 by Paul Curtis

Gus,
 
> > > I spent all weekend trying to get the ethernet to work on olimex
> LPC-
> > > E2294 board http://www.olimex.com/dev/lpc-e2294.html with no luck
> > > 
> > > Looking at the board schematics, they have the Ethernet chip 
> > > "selected" all the time through R57!!! This is WRONG!! I don't 
> > > understand why!!! So I removed R57 and installed R56 
> instead. Now, 
> > > when I read the chip, I always get the "chip ID" no matter what 
> > > register I select!

For register reads, I believe that is really doesn't matter that the
chip is always selected using /CHIPSEL as it will only present or latch
data on an IOR or IOW strobe.  However, I have not used the chip in its
16-bit mode; it looks like the registers are memory mapped to
0x0000'0300.

Can you post a small piece of code that reads and writes the registers?

--
Paul Curtis, Rowley Associates Ltd  http://www.rowley.co.uk
CrossWorks for MSP430, ARM, AVR and (soon) MAXQ processors

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