The softdevice is only verified to be working on nrf52832-based
boards. This feature prevents the softdevice from being build for
other, similar targets (e.g. nrf52840-based boards).
Introduce and use a common/remote/Makefile.features.
The boards were already using the common `Makefile.include` and
`Makefile.dep`.
This makes 'include $(RIOTCPU)/cc2538/Makefile.features' be done in
the same module where 'CPU' is defined.
Preparation for moving 'CPU' definition to Makefile.features.
Introduce and use a common/msba2/Makefile.features.
The boards were already using the common `Makefile.include` and
`Makefile.dep`.
This makes 'include $(RIOTCPU)/lpc2387/Makefile.features' be done in
the same module where 'CPU' is defined.
Preparation for moving 'CPU' definition to Makefile.features.
Moved SPI config from boards/common/nrf52xxxdk/include/periph_config.h to
boards/common/nrf52/include/cfg_spi_default.h. This allows all nRF52 based
boards to use this SPI config if applicable and also allows nRF52*-DK boards
to use custom SPI configs, if needed.
PORT_LINUX and PORT_DARWIN are evaluated by
`makefiles/tools/serial.inc.mk` and some boards Makefile.include.
Their value does not need to be exported.
This also globally removes the line saying that the exports are needed
for flash rule.
Keep the compiled '.bin' file to remove the need to compile it when
flashing. This remove the need to have the toolchain when flashing so
allow compiling and flashing with `BUILD_IN_DOCKER=1` without a local
toolchain.
Even if it ends up storing a binary, the file is only 34 bytes.
MSPDEBUGFLAGS is evaluated only in the same file.
Its value does not need to be exported.
This will also prevent evaluating 'PORT' for MSPDEBUGFLAGS when not needed.
DEBUGGER/DEBUGGER_FLAGS/DEBUGSERVER/DEBUGSERVER_FLAGS are evaluated by the
main Makefile.include or by file included by it.
Their value does not need to be exported.
Testing
-------
`git diff --word-diff` only reports `export` being removed.
`git show --stat` reports `55 insertions(+), 55 deletions(-)`
Which is the same amount as lines that where matching
`export[[:blank::]]\+VARIABLE`.
RESET and RESET_FLAGS are evaluated by the main Makefile.include or by file
included by it. Their value does not need to be exported.
This will also prevent evaluating 'PORT' for RESET_FLAGS when not needed.
Testing
-------
`git diff --word-diff` only reports `export` being removed.
`git show --stat` reports `24 insertions(+), 24 deletions(-)`
Which is the same amount as lines that where matching
`export[[:blank::]]\+VARIABLE`.
FLASHER and FFLAGS are evaluated by the main Makefile.include or by file
included by it. Their value does not need to be exported.
This will also prevent evaluating 'PORT' for FFLAGS when not needed.
Testing
-------
`git diff --word-diff` only reports `export` being removed.
`git show --stat` reports `84 insertions(+), 84 deletions(-)`
Which is the same amount as lines that where matching
`export[[:blank::]]\+VARIABLE`.
The currently supported SAM0 MCUs (samd21, saml21, saml1x) share the same
Timer peripheral, yet each of them carries it's own copy of the Timer
driver.
This introduces a new timer driver that is common for all sam0 MCUs and
uses structs for configuration instead of defines.
