Lpc2000

I'm revising an LPC2106 board and making its console port compatible
with the "Use DTR/RTS for Reset and Boot Loader Selection" option of the
"LPC2000 Flash Utility."

Just as a final sanity check..

I am connecting DTR through an RS232 receiver and an open-collector
inverter to RST (pin 6), and I am connecting RTS through an RS232
receiver and an open-collector inverter to PC0.14/DCD1/EINT1 (pin 44).
So, when the PC drives DTR "true" (-12V) it will drive pin 6 low and
reset the LPC2106, and when it drives RTS "true" (-12V) it will drive
pin 44 low and place the part into 'load' mode.

This is correct?

Thanks.

At 02:18 PM 10/4/04 -0400, you wrote:
>I'm revising an LPC2106 board and making its console port compatible
>with the "Use DTR/RTS for Reset and Boot Loader Selection" option of the
>"LPC2000 Flash Utility."
>
>Just as a final sanity check..
>
>I am connecting DTR through an RS232 receiver and an open-collector
>inverter to RST (pin 6), and I am connecting RTS through an RS232
>receiver and an open-collector inverter to PC0.14/DCD1/EINT1 (pin 44).
>So, when the PC drives DTR "true" (-12V) it will drive pin 6 low and
>reset the LPC2106, and when it drives RTS "true" (-12V) it will drive
>pin 44 low and place the part into 'load' mode.

Compare to schematics at 
http://www.aeolusdevelopment.com/Articles/InSystemProgramming.html

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

See this app. note:

http://www.semiconductors.philips.com/acrobat/applicationnotes/AN10302
_3.pdf

Rich

--- In lpc2000@yahoogroups.com, Robert Adsett <subscriptions@a...> 
wrote:
> At 02:18 PM 10/4/04 -0400, you wrote:
> >I'm revising an LPC2106 board and making its console port 
compatible
> >with the "Use DTR/RTS for Reset and Boot Loader Selection" option 
of the
> >"LPC2000 Flash Utility."
> >
> >Just as a final sanity check..
> >
> >I am connecting DTR through an RS232 receiver and an open-collector
> >inverter to RST (pin 6), and I am connecting RTS through an RS232
> >receiver and an open-collector inverter to PC0.14/DCD1/EINT1 (pin 
44).
> >So, when the PC drives DTR "true" (-12V) it will drive pin 6 low 
and
> >reset the LPC2106, and when it drives RTS "true" (-12V) it will 
drive
> >pin 44 low and place the part into 'load' mode.
> 
> Compare to schematics at 
> http://www.aeolusdevelopment.com/Articles/InSystemProgramming.html
> 
> 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