esp-idf/components/esptool_py/Makefile.projbuild

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Makefile

# Component support for esptool.py. Doesn't do much by itself,
# components have their own flash targets that can use these variables.
ESPPORT ?= $(CONFIG_ESPTOOLPY_PORT)
ESPBAUD ?= $(CONFIG_ESPTOOLPY_BAUD)
PYTHON ?= $(call dequote,$(CONFIG_PYTHON))
# two commands that can be used from other components
# to invoke esptool.py (with or without serial port args)
#
# NB: esptool.py lives in the sdk/bin directory not the component directory
ESPTOOLPY := $(PYTHON) $(IDF_PATH)/bin/esptool.py --chip esp32
ESPTOOLPY_SERIAL := $(ESPTOOLPY) --port $(ESPPORT) --baud $(ESPBAUD)
ESPTOOLPY_WRITE_FLASH=$(ESPTOOLPY_SERIAL) write_flash $(if $(CONFIG_ESPTOOLPY_COMPRESSED),-z)
ESPTOOL_ALL_FLASH_ARGS += $(CONFIG_APP_OFFSET) $(APP_BIN)
$(APP_BIN): $(APP_ELF)
$(Q) $(ESPTOOLPY) elf2image -o $@ $<
flash: all_binaries
@echo "Flashing project app to $(CONFIG_APP_OFFSET)..."
$(Q) $(ESPTOOLPY_WRITE_FLASH) $(ESPTOOL_ALL_FLASH_ARGS)
app-flash: $(APP_BIN)
$(Q) $(ESPTOOLPY_WRITE_FLASH) $(CONFIG_APP_OFFSET) $(APP_BIN)