IRQs _can_ be used during flash programming, provided that you ensure the IRQ handler and everything it touches is in RAM.
Of course the very easiest option (if you have enough RAM) is to select a copy-to-RAM binary, then you can have everything you want running at the same time as flash programming.If you are sticking with the default build, that has most things in flash but selected code in RAM (some SDK bits are already in RAM), then the IRQ handler itself is easy enough to move to RAM, just declare it:but the "everything it touches" can be quite hard for anything other than a trivial handler. Even the compiler may put stuff in flash you weren't expecting - const strings are obvious, but things like jump tables for case statements can catch you out.
Of course the very easiest option (if you have enough RAM) is to select a copy-to-RAM binary, then you can have everything you want running at the same time as flash programming.
Code:
pico_set_binary_type(my_program copy_to_ram)Code:
static void __not_in_flash_func(pio_irq0_handler)(void){...}Statistics: Posted by arg001 — Thu Nov 28, 2024 10:30 am