Brian Swetland
Brian Swetland
I did assemble the PLCC board and things appear to work (can program the part, LEDs light up, etc). I didn't test it extensively beyond that, but it's pretty straightforward,...
No changes to the ROM loader are needed, just to the second stage (boot2) which is built by the SDK and lives at offset 0 in the SPI flash. The...
Yeah! Saw your reply moments after I clicked "comment".
Good point about the XIP helpers needing to be SRAM loaded, so not quite as trivial, though still doable. 4K out of a typical several MB flash didn't strike me...
> I'm obviously not as familiar with the low-level details as you and Luke, but I guess my concern is that (if I'm understanding this correctly) there'd then be some...
The SDK currently includes 4 different boot2 flash XIP implementations (following info from the header comments in the assembly source files): - generic -- should work with just about anything,...
> > buying a bunch of random devices .... support is incredibly patchy, with a lot of broken implementations. > > Sounds very similar to the situation with SD cards...
I think having the image start at 0x10000000 for a "full" image (boot2+app bundled together) and start at 0x10001000 for a standalone "app" image expecting to work with a separate...
> one other consideration is whether we can build a "multi-flash" binary (again this would be a more than 256 byte header), but the 256 byte header would try to...