hedger f54ae2597e Bootloader size optimizations (#873)		%!s(int64=4) %!d(string=hai) anos
..
src	805bb886c0 Implement bootloader #137 (#142)	%!s(int64=5) %!d(string=hai) anos
targets	f54ae2597e Bootloader size optimizations (#873)	%!s(int64=4) %!d(string=hai) anos
Makefile	4303945748 Simpler build, less dependencies (#827)	%!s(int64=4) %!d(string=hai) anos
ReadMe.md	93fdf98588 Fix typos (#857)	%!s(int64=4) %!d(string=hai) anos

Flipper bootloader

What it does?

Hardware initialization
Boot process LED indicators
Firmware update
Errata crutches
Recovery mode

Targets

| | Address | Address | Combo | Combo |

| f7 | 0x08000000 | 0x00008000 | L+Back | L+Back, hold L |

Also there is a ST bootloader combo available on empty device: L+Ok+Back, release Back,Left. Target independent code and headers in src and target/include folders.

Building

With dev docker image:

docker-compose exec dev make -C bootloader

With toolchain installed in path:

make -C bootloader

Build Options

DEBUG - 0/1 - enable or disable debug build. Default is 1.
TARGET - string - target to build. Default is f4.

Flashing

Using SWD (STLink):

make -C bootloader flash

Or use DFU (USB):

make -C bootloader upload

Debug