Since a number of applications rely on the existence of the BTN0_PIN definition, the BUTTON0_PIN definition has been renamed to BTN0_PIN to make the ESP32 boards compatible with these applications. However, for compatibility with earlier versions, BUTTON0_PIN is still defined as an alias of BTN0_PIN.
According to the datasheet, SX1278 covers frequencies till 525MHz
and hence, cannot be used for the 868/915 MHz band. So swap both
chips.
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
- No longer include `tools/serial.mk` and `tools/avrdude.mk`, as this is
no done by `boards/common/atmega`
- No longer provide `RESET ?=`, as this is now done in `tools/avrdude.mk` for
all ATmega boards unless they are using a bootloader
- Use the common logic to translate from a bootloader to concrete flasher flags
- Extended documentation on how to use optiboot as alternative bootloader, as
the stock bootloader is affected by a bug preventing the use of RIOT's
pm_reboot() implementation
- including `avrdude.mk` and `serial.mk` is no longer needed
- the avrdude flag -F is dropped
- This allows flashing a board having an MCU different to the one
RIOT was compiled for
- It is better to let the user provide this flag manually if she/he really
wants to turn safety off, knows what she/he is doing, and accepts the
risk associated with this
- the avrdude flag -D is dropped
- This disables issuing an erase command during flashing, however this
erase cycle is strictly required to be able to program the flash
- This is only needed in case of the stk500v2 bootloader, which implicitly
does the erase cycle and fails if explicitly asked to do so
- Only for the stk500v2 bootloader this flag is now added
- Include `tools/avrdude.mk` and `tools/serial.mk` at the common place instead
for each ATmega based board individually
- Introduce the makefile variable BOOTLOADER to de-duplicate flash configs:
- Two boards using the same bootloader now just use `BOOTLOADER ?= foo`
and share the individual config
- These settings are not applied when `PROGRAMMER` is set to still allow
users to manually specify how to program their board
