I know it is possible to handle interrupts while erasing and programming sectors of the flash, but is it possible to pre-empt the iap altogether?
The iap return code 11 (busy) makes me suspect so. It would require mapping
interrupts to RAM and running the application from RAM as well, not referencing
any constants in the flash.
The question is; can the iap be pre-empted?
The specific devices I am concerned with are LPC2134 and LPC2148.
The (non-)answer I got from NXP support was that they "recommend strongly that
no interrupts be enabled when working in IAP and have nothing else working in
parallel when performing IAP."
This FAQ states that interrupts can be handled (and I can confirm that), but
apparently NXP does not recommend it (could that be because it is safe to
Is anybody successfully preempting the iap using homebrew or a more widely
This is mostly out of curiosity since the application that I am working on is
scheduled in a very basic way.