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RE: [lpc2000] Help with lpc2148

2006-01-25 by Paul Curtis

Dmitry, 

> > I have USB code running on a 2148 compiled with GCC.  There are some
> > nasty gotchas in the USB part of the 2148 though.
> 
> Is it possible to have a look at it? 

My plans for the USB code are not fully formed yet.  The USB stack runs
on a few processors/USB chips.  The LPC214x took three or four days of
head scratching to make work reliably well and fast despite having a
hardware USB analyser.  In short, not at this time.

> I just tried almost everything to make USB running but no 
> success so far...

The LPC214x manual is terrible when it comes to USB documentation.  Read
it carefully and do some experimentation.  I thought I had things
working well, then tweaked the host code, and it all fell apart.  It
took days to figure out what was going on.  I needed a USB analyzer, a
debugger, and some hard work.

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

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