mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
08d88ee557
Allow issuing a reset to bootloader sequence by abusing the RTS and the DTR pins of a TTL adapter. This makes flashing via UART much more convenient, as no jumpers need to be placed to select booting to the bootloader / flash and no reset buttons need to be pressed.
66 lines
2.3 KiB
Makefile
66 lines
2.3 KiB
Makefile
PROGRAMMER ?= openocd
|
|
PROGRAMMERS_SUPPORTED += bmp dfu-util openocd stm32flash
|
|
|
|
ifeq (bmp,$(PROGRAMMER))
|
|
# On Blackmagic Probe, the first ACM is used to connect to the gdb server,
|
|
# the second is the BMP's UART interface
|
|
PORT_LINUX ?= /dev/ttyACM1
|
|
PORT_DARWIN ?= $(wordlist 2, 2, $(sort $(wildcard /dev/tty.usbmodem*)))
|
|
endif
|
|
|
|
# STM32 boards can become un-flashable after a hardfault,
|
|
# use connect_assert_srst to always be able to flash or reset the boards.
|
|
OPENOCD_RESET_USE_CONNECT_ASSERT_SRST ?= 1
|
|
|
|
# For STM32 boards the ST-link adapter is the default adapter, e.g. all
|
|
# Nucleo boards have an on-board ST-link adapter
|
|
OPENOCD_DEBUG_ADAPTER ?= stlink
|
|
|
|
JLINK_DEVICE ?= $(CPU_MODEL)
|
|
|
|
ifeq (dfu-util,$(PROGRAMMER))
|
|
# optionally, use dfu-util to flash via usb
|
|
# note: needs a bootloader flashed before, config below is compatible
|
|
# with blackmagic_dfu, see https://github.com/blacksphere/blackmagic/
|
|
# To stop bootloader from loading an existing firmware, pull down
|
|
# (ground) GPIO B1.
|
|
ifeq (,$(DFU_USB_ID))
|
|
$(error DFU_USB_ID is not set)
|
|
endif
|
|
endif
|
|
|
|
ifeq (stm32flash,$(PROGRAMMER))
|
|
ROM_OFFSET ?= 0x0
|
|
FLASHER = stm32flash
|
|
DEBUGGER =
|
|
FLASHFILE ?= $(BINFILE)
|
|
PROG_BAUD ?= 57600
|
|
BIN_ADDR ?= $(shell echo $$(($(ROM_START_ADDR) + $(ROM_OFFSET))))
|
|
STM32FLASH_RESET ?= 0
|
|
STM32FLASH_RESET_INVERT ?= 1
|
|
# sequence to reset board into bootloader:
|
|
# BOOT0 --> HIGH, RST --> LOW
|
|
# BOOT0 --> HIGH, RST --> HIGH
|
|
# sequence to reset board into application
|
|
# BOOT0 --> LOW, RST --> LOW
|
|
# BOOT0 --> LOW, RST --> HIGH
|
|
# This can be done via a TTL adapter when BOOT0 is connected to RTS and
|
|
# RST is connected to DTR
|
|
ifeq (1,$(STM32FLASH_RESET))
|
|
# The TTL adapter this was tested with actually has inverted outputs. But
|
|
# we can just support both via a simple flag:
|
|
ifeq (1,$(STM32FLASH_RESET_INVERT))
|
|
FFLAGS += -i '-rts,dtr,-dtr:rts,dtr,-dtr'
|
|
# set term flags so BOOT0 is low and RST is high
|
|
MINITERMFLAGS += --rts 1 --dtr 0
|
|
PYTERMFLAGS += --set-rts 1 --set-dtr 0
|
|
else
|
|
FFLAGS += -i 'rts,-dtr,dtr:-rts,-dtr,dtr'
|
|
# set term flags so BOOT0 is low and RST is high
|
|
MINITERMFLAGS += --rts 0 --dtr 1
|
|
PYTERMFLAGS += --set-rts 0 --set-dtr 1
|
|
endif
|
|
endif
|
|
FFLAGS += -v -b $(PROG_BAUD) -w $(FLASHFILE) -S $(BIN_ADDR) -g $(BIN_ADDR) $(PORT)
|
|
endif
|