I've been searching threads on this topic on DevZone and I found a couple that concluded that MCUBoot can work with external SPI flashes, but not with an SD card.
Is that still the case?
I can currently fit two images in my processor, but I don't have as much free space for future changes as I'd like (The code compiles to 415788 bytes of flash and the default image size is 499200, which is 83.29% full). So I'd like to make the SD card work, but if it's a huge can of worms maybe we're ok.
Anyway, if I commit to modifying MCUBoot files, it seems like if I just replace all instances of reading or writing flash with my own SD card read/write functions it shouldn't be terribly complicated, right?
Thanks,
Glen
