Lpc2000

The level translator i'm using is a prebuilt unit.  It gets it's power
from the serial port (RTS & DTS) lines I think.  It has worked with
other projects such as an msp430 from last semester.  I'm thinking of
making my own to rule it out though.  As for the solder connections,
this was one of my first thoughts too.  I used a soldering station at
school and went over any connections that didn't look to good.  The
board i'm using is from sparkfun, its a lpc-h40.  Just an 2106 on a
header board with some voltage regulators and a crystal, The bare
minimum to run the chip.  One thing I was wondering is if anyone has
an old version of the flash utility from philips that only sent out a
single "?" instead of a steady string.  I'm wondering if the string of
"?" is to fast for the chip to respond.  

Thanks for the suggestions though
Reggie

--- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@a...> wrote:
> At 04:36 AM 1/25/05 +0000, you wrote:
> >Yes, have tried several different computer with different COM ports.
> >At school today I have had access to an oscolliscope and found out
> >that the philips program is sending out a string of question marks
> >trying to get the chip to respond with Synchronized, but the chip just
> >sets there.  However on the same computer and COM port I can fire up
> >HyperTerminal send a single "?" and get the Synchronized response as
> >expected.  Still at a loss here, can't figure out what would cause
this.
> 
> Have you tried a different cable?  This is the kind of thing I've
seen with 
> intermittent connections (cold solder joint, lead sitting on pad w/o 
> solder, a broken wire that makes contact as long as the cable sits just 
> so).  Also are you using the appropriate power supply for your level 
> translator (not running a 5V chip on 3.3V)?
> 
> Robert
> 
> " 'Freedom' has no meaning of itself.  There are always restrictions,
> be they legal, genetic, or physical.  If you don't believe me, try to
> chew a radio signal. "
> 
>                          Kelvin Throop, III