How to ICP?

All,

The link to the source file is
http://cvs.sourceforge.net/viewcvs.py/lpc935-prog/lpc935-prog/lpc935-prog.c?rev=1.4&view=auto
from the link below select cvs then browse repository.

I do not measure the pulse length there is no need to if did not go
into bootloader mode this time when try the command again, I detect
this but the looking at the output on the screen. THese pulses are so
short compaired to the length of a time slice that you have to be
unlucky to b task switched and have one pulse lengthened. A task
periord is usually 10mS to 50mS this is an age when trying to generate
3 pulses with a total time of 64uS (16uS high and 48uS low). Using
the serial port is less hassel than the parallel port but until you
try it you are never going to know if it will work.

Regards,
Rod

--- In l..., "Mohsen Heidari"
wrote:
>
> Rod,
>
> I couldn't find the files at the link you said, but if Jan's guess is
> right, it sounds a very creative and interesting solution to me too.
>
> I still haven't received my Philips chips, and besides that I've got a
> list of nearly 6473765.563 jobs to do for the easter, otherwise I
> would surly give it a try!
>
> Cheers, and thanks
> Mohsen
>
> --- In l..., Jan Waclawek wrote:
> >
> > rodboyce70 wrote:
> > > PC's today are more than fast enough to do what you want to do even
> > > under windows you just have to be prepared to try a second time.
> >
> > Congratulations!
> >
> > Without attempting to understand your code, does this mean that you
> > measure the length of pulses you are creating, so you know it went
> wrong
> > and an another process kicked in meantime?
> >
> > Thanks,
> >
> > Jan Waclawek
> Start a New Thread

And for those who "may not know better", I count 15 LPC devices on my
June 2005 Philips microcontroller line card that only have ICP
programming capability! They don't even have parallel programmer access.

So for these lower-pin-count devices, ISP is simply not an option.

tom

--- In l..., "rodboyce70"
wrote:
>
> All,
>
> At the risk of upsetting people who may or may not know better. I
> would suggest that instead of ICP you use the ISP protocol. It is
Start a New Thread

And for the ones that do offer ISP use that instead :-) for all the
rest use something else..... ;-)

Rod
--- In l..., "tbavp" wrote:
> And for those who "may not know better", I count 15 LPC devices on my
> June 2005 Philips microcontroller line card that only have ICP
> programming capability! They don't even have parallel programmer access.
>
> So for these lower-pin-count devices, ISP is simply not an option.
>
> tom
>
> --- In l..., "rodboyce70"
> wrote:
> >
> > All,
> >
> > At the risk of upsetting people who may or may not know better. I
> > would suggest that instead of ICP you use the ISP protocol. It is
> Start a New Thread