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Re: [lpc2000] Re: LPC2138

2005-01-13 by Robert Adsett

At 05:55 PM 1/13/05 +0000, you wrote:
>--- In lpc2000@yahoogroups.com, "gsudershanraj" <gsraj@p...> wrote:
> >
> > Hello Guys,
> >
> > 1)Is the JTAG port used for debudding can also be used for
> > programming the flash for production of LPC2138.
>Yes, you can program the Flash through the JTAG port, but it won't be
>fast and it will be a bit of work to get production quality software
>running (meaning "push this button to program").



>IIRC, all of the LPC parts come with a serial port boot loader that
>should be a bit easier to get running for your needs.  Can you use the
>serial port?  If you don't want the RS232 transceiver on your board,
>you can use a paddle board for that.  If you don't want the cost of a
>connector on the board, you can use a card edge connector or even a
>clamp on connector.

Martin's LPC21ISP program should be well suited to production use.  Even 
without modification it's command line nature should be a help and it could 
be easily incorporated into a production test program.  Heck as far as a 
paddle board, I've got them to sell ;)  Another connector alternative if 
you are worried about room (and JTAG will be worse than serial) is to place 
the physical connector on a breakway piece and remove it after 
programming.  Reprogramming is more difficult that way of course.


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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