> The one thing I also found on the olimex
website was this quote:
>
> "In general: LPC21xx are very new parts, for
some unknown reason
> Philips doesn't disclosure how to program LPC21xx Flash via JTAG
> which make hard time for the IDE developers. Perpahs Philips have
> problems with the Flash programming as it is now and is going to
> change the protocol in future and this is why they force all to use
> their bootloader IAP protocol.
> Philips doesn't disclosure how to program LPC21xx Flash via JTAG
> which make hard time for the IDE developers. Perpahs Philips have
> problems with the Flash programming as it is now and is going to
> change the protocol in future and this is why they force all to use
> their bootloader IAP protocol.
I beleive that there is no hardware that would
allow the flash to be programmed directly from JTAG. There is nothing in
the documentation that suggests that it should be possible.
;
> The only vendor so far who work this
> around is Rowley, they first load in RAM small own bootloader who
> then get data from JTAG and fed to IAP to write Flash segments thus
> making their product easies to use so far with LPC21xx parts."
> around is Rowley, they first load in RAM small own bootloader who
> then get data from JTAG and fed to IAP to write Flash segments thus
> making their product easies to use so far with LPC21xx parts."
It is not true that the only vendor that has
this working is Rowley - we do the
same thing, supporting flash programming for all LPC2000 devices using a small
program in RAM. I would assume that this is how the rest of our competition is
doing it, aswell.
Sten Larsson
Nohau Corp