Hi Folks, I've finished a major milestone on some of the firmware I developed for this processor. As such, I wanted to add a firmware update which uses progmem. My understanding is that if I run from ram, I should be able to erase all sectors and update the flash. Well, I tried that and in debug I found that exception_common is still in the flash addrspace (0x4x0000). So when I flash any sector that overlaps the image I get a Hardfault. I did add __ramfuncs__ to a few eefc routines and that got me out of jail, I can erase and program any page/sector which is not being used by the program, but anything inside the program region yields a hardfault. I debugged a few of them, but I am still confused why exception_common is not in ram ...
Any pointers or guidance here would be greatly appreciated! PS, I could just byte the bullet and use mcuboot, which I will probably do, but for starters the basics should work (e.g. flash the entire 2MB flash which running from Ram). Thanks! -James
