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Re: [lpc2000] FLASH Utility Cable Sanity Check

2004-10-04 by Robert Adsett

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

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