Lpc2000

I fixed the schematic.  Thanks for the heads-up.

Richard

--- In lpc2100@yahoogroups.com, "J.C. Wren" <jcwren@j...> wrote:
>     While a good idea from an engineering perspective, remember 
that 
> RS-232 drivers are meant to survive dead shorts, including shorting 
a 
> high line to a low line (+12 to -12).  The circuit may not function 
> correctly, but it won't (shouldn't) blow the driver.
> 
>     --jc
> 
> haack0815 wrote:
> 
> > Hi Richard,
> >
> > i think the position of D3,4 is wrong.
> > What happens when DTR or RTS  are '1' (negative voltage)?
> > You better place D3,4 behind the 33k  resitor to protect the 
drivers
> > of your PC.
> >
> > Andreas
> >
> > --- In lpc2100@yahoogroups.com, "Richard" <richas@y...> wrote:
> > > I have uploaded this version to the files area.  I also 
uploaded a
> > > picture of the required circuitry.  This circuitry is already
> > > implemented on the IAR Kickstart and Keil MCB2100 evaluation 
boards. 
> > > It is really handy as ISP development can be done relatively 
quickly
> > > and "hands-off".
> > >
> > > Cheers
> > >
> > > Richard
> >
> >