Clean up `default-channel.inc.mk` to only set the custom CFLAGS
if they are really needed.
This should help avoid cluttering `riotbuild.h`.
The default PAN ID configuration should be just as easy to set
as the default channel, so also add an option for that while we
are at it.
The ATmega128RFA1 and ATmega256RFR2 contain a version of this IP
on the MCU.
The radio core behaves mostly like a at86rf231, but all registers
are mapped to memory and radio states can directly generate interrupts
on the CPU.
The ATmega256RFR2 adds support for automatic retransmissions.
This has not been implemented yet.
Co-authored-by: Josua Arndt <jarndt@ias.rwth-aachen.de>
- Move serial.inc.mk in mega-xplained/Makefile.include after
PROG_DEV so PROG_DEV can still default to PORT
- Add deprecation warning for arduino-leonardo and mega-xplained
`-Watomic-alignment` warns when C11 atomics have to be implemented via a to one
of the functions in `core/atomic_c11.c`. Unlike to the context of Desktop or
Server class machines, the performance penalty of this calls is insignificant
(and not existing with LTO). So this is not an issue in our context.
On the other hand: Keeping `-Watomic-alignment` prevents building applications
using C11 atomics on all platforms the atomic operations are not implemented
without calls to `core/atomic_c11.c` (due to `-Werror`), reducing portability.
So not only does the warning is not useful in our context, it actually prevents
portable use of C11 atomics. It is the most sensible thing to just disable it.
By ensuring the PORT auto-detection worked, we can give meaningful
error messages and fail earlier.
This uses ensure_value from makefiles/utils/checks.mk. An include was
added to Makefile.include to make this fuction available to all other
makefiles.
This script can detect [Black Magic Probes](https://github.com/blacksphere/blackmagic/wiki) and act as a flashloader (and more).
It is compatible with Linux and macOS.
All important options that can be set via the monitor command are available as arguments.
Makefiles for using `make flash`, `make erase`, `make debug` and `make term` with the script are included.
Remove the workaround for clang 3.6.2 that did not support
'cortex-m0plus'.
clang 3.8 was already supporting it according to the PR introducing the check.
clang >=3.8 is avaible since ubuntu-xenial and debian-stretch.
The current ubuntu-bionic has clang 6 and debian-buster clang 7.
This removes overwriting 'CPU_ARCH'.
Add a 'dependency-debug' and a 'DEPENDENCY_DEBUG=1' option for
'info-boards-supported' to save some variables used when resolving
dependencies.
Print some some 'sorted' variables to simplify comparing the actual value
when the parsing order changed.
This should help tracking changes introduced when refactoring the
dependency parsing.
