Lpc2000

> Some of your information sort of sounds good, I like the idea 
> of having a bootloader that doesn't include Flash programming 
> code for the reasons you mentioned. Yet I use the IAP Flash 
> programming calls from my application anyway, so leaving it 
> out of the bootloader is of no benefit to me. 

I must admit to being confused by this one. I would have thought for
serial upgrading to work, Philips has to include flash routines
somewhere (bootloader?) on the chip. For certain any field upgrades we
do are via serial port, not via Jtag. I might be wrong but the loading
to ram of dedicated Flash routines only works for Jtag upgrades ?
Also, one of the reasons Robert gave for not wishing people to write
their own bootloaders was to handle flash specifics in the bootloader.
If the bootloader doesn't have the flash routines, then this benefit is
probably lost. I guess the upgrade program could still "hide" these
specifics and be upgraded every time the flash technology changes, but
having the algorithms with the chip is a much neater way to handle this.

Maybe you could have pseudo code specifics in the bootloader that a RAM
program interprets, but this is starting to get messy. Much prefer a
chip that can upgrade itself !

Cheers,
Bruce

PS: Trying to keep this on a technical level only !