circuitpython/ports/esp8266/Makefile

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# Select the board to build for:
ifdef BOARD_DIR
# Custom board path - remove trailing slash and get the final component of
# the path as the board name.
BOARD ?= $(notdir $(BOARD_DIR:/=))
else
# If not given on the command line, then default to GENERIC.
BOARD ?= GENERIC
BOARD_DIR ?= boards/$(BOARD)
endif
ifeq ($(wildcard $(BOARD_DIR)/.),)
$(error Invalid BOARD specified: $(BOARD_DIR))
endif
# If the build directory is not given, make it reflect the board name.
BUILD ?= build-$(BOARD)
include ../../py/mkenv.mk
# Optional
-include $(BOARD_DIR)/mpconfigboard.mk
# qstr definitions (must come before including py.mk)
QSTR_DEFS = qstrdefsport.h #$(BUILD)/pins_qstr.h
QSTR_GLOBAL_DEPENDENCIES = $(BOARD_DIR)/mpconfigboard.h
# MicroPython feature configurations
MICROPY_ROM_TEXT_COMPRESSION ?= 1
MICROPY_PY_USSL = 1
MICROPY_SSL_AXTLS = 1
AXTLS_DEFS_EXTRA = -Dabort=abort_ -DRT_MAX_PLAIN_LENGTH=1024 -DRT_EXTRA=4096
BTREE_DEFS_EXTRA = -DDEFPSIZE=1024 -DMINCACHE=3
FROZEN_MANIFEST ?= boards/manifest.py
# include py core make definitions
include $(TOP)/py/py.mk
include $(TOP)/extmod/extmod.mk
GIT_SUBMODULES += lib/axtls lib/berkeley-db-1.xx
FWBIN = $(BUILD)/firmware-combined.bin
PORT ?= /dev/ttyACM0
BAUD ?= 115200
FLASH_MODE ?= qio
FLASH_SIZE ?= detect
CROSS_COMPILE ?= xtensa-lx106-elf-
ESP_SDK = $(shell $(CC) -print-sysroot)/usr
INC += -I.
INC += -I$(TOP)
INC += -I$(BUILD)
INC += -I$(ESP_SDK)/include
# UART for "os" messages. 0 is normal UART as used by MicroPython REPL,
# 1 is debug UART (tx only), -1 to disable.
UART_OS = -1
CFLAGS_XTENSA = -fsingle-precision-constant -Wdouble-promotion \
-D__ets__ -DICACHE_FLASH \
-fno-inline-functions \
-Wl,-EL -mlongcalls -mtext-section-literals -mforce-l32 \
-DLWIP_OPEN_SRC
CFLAGS += $(INC) -Wall -Wpointer-arith -Werror -std=gnu99 -nostdlib -DUART_OS=$(UART_OS) \
$(CFLAGS_XTENSA) $(COPT) $(CFLAGS_EXTRA) -I$(BOARD_DIR)
esp8266: Change from FAT to littlefs v2 as default filesystem. This commit changes the esp8266 boards to use littlefs v2 as the filesystem, rather than FAT. Since the esp8266 doesn't expose the filesystem to the PC over USB there's no strong reason to keep it as FAT. Littlefs is smaller in code size, is more efficient in use of flash to store data, is resilient over power failure, and using it saves about 4k of heap RAM, which can now be used for other things. This is a backwards incompatible change because all existing esp8266 boards will need to update their filesystem after installing new firmware (eg backup old files, install firmware, restore files to new filesystem). As part of this commit the memory layout of the default board (GENERIC) has changed. It now allocates all 1M of memory-mapped flash to the firmware, so the filesystem area starts at the 2M point. This is done to allow more frozen bytecode to be stored in the 1M of memory-mapped flash. This requires an esp8266 module with 2M or more of flash to work, so a new board called GENERIC_1M is added which has the old memory-mapping (but still changed to use littlefs for the filesystem). In summary there are now 3 esp8266 board definitions: - GENERIC_512K: for 512k modules, doesn't have a filesystem. - GENERIC_1M: for 1M modules, 572k for firmware+frozen code, 396k for filesystem (littlefs). - GENERIC: for 2M (or greater) modules, 968k for firmware+frozen code, 1M+ for filesystem (littlefs), FAT driver also included in firmware for use on, eg, external SD cards.
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LD_FILES ?= boards/esp8266_2m.ld
LDFLAGS += -nostdlib -T $(LD_FILES) -Map=$(@:.elf=.map) --cref
LIBS += -L$(ESP_SDK)/lib -lmain -ljson -llwip_open -lpp -lnet80211 -lwpa -lphy -lnet80211
LIBGCC_FILE_NAME = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
LIBS += -L$(dir $(LIBGCC_FILE_NAME)) -lgcc
# Debugging/Optimization
CFLAGS += -g # always include debug info in the ELF
ifeq ($(DEBUG), 1)
COPT = -O0
else
CFLAGS += -fdata-sections -ffunction-sections
COPT += -Os -DNDEBUG
LDFLAGS += --gc-sections
endif
# Options for mpy-cross
MPY_CROSS_FLAGS += -march=xtensa
SRC_C = \
strtoll.c \
main.c \
help.c \
esp_mphal.c \
esp_init_data.c \
gccollect.c \
lexerstr32.c \
uart.c \
esppwm.c \
espapa102.c \
modmachine.c \
machine_bitstream.c \
machine_pin.c \
machine_rtc.c \
machine_adc.c \
machine_uart.c \
machine_wdt.c \
machine_hspi.c \
modesp.c \
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modutime.c \
network_wlan.c \
ets_alt_task.c \
fatfs_port.c \
posix_helpers.c \
hspi.c \
$(wildcard $(BOARD_DIR)/*.c) \
LIB_SRC_C = $(addprefix lib/,\
libm/math.c \
libm/fmodf.c \
libm/nearbyintf.c \
libm/ef_sqrt.c \
libm/erf_lgamma.c \
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libm/kf_rem_pio2.c \
libm/kf_sin.c \
libm/kf_cos.c \
libm/kf_tan.c \
libm/ef_rem_pio2.c \
libm/sf_erf.c \
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libm/sf_sin.c \
libm/sf_cos.c \
libm/sf_tan.c \
libm/sf_frexp.c \
libm/sf_modf.c \
libm/sf_ldexp.c \
libm/acoshf.c \
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libm/asinfacosf.c \
libm/asinhf.c \
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libm/atanf.c \
libm/atanhf.c \
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libm/atan2f.c \
libm/log1pf.c \
libm/roundf.c \
libm/wf_lgamma.c \
libm/wf_tgamma.c \
)
SHARED_SRC_C = $(addprefix shared/,\
libc/__errno.c \
libc/string0.c \
netutils/netutils.c \
readline/readline.c \
runtime/interrupt_char.c \
runtime/pyexec.c \
runtime/stdout_helpers.c \
runtime/sys_stdio_mphal.c \
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timeutils/timeutils.c \
)
DRIVERS_SRC_C = $(addprefix drivers/,\
bus/softspi.c \
dht/dht.c \
)
SRC_S = \
gchelper.s \
OBJ += $(PY_O)
OBJ += $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(SRC_S:.s=.o))
OBJ += $(addprefix $(BUILD)/, $(SHARED_SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(LIB_SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(DRIVERS_SRC_C:.c=.o))
# List of sources for qstr extraction
SRC_QSTR += $(SRC_C) $(SHARED_SRC_C)
# Append any auto-generated sources that are needed by sources listed in SRC_QSTR
SRC_QSTR_AUTO_DEPS +=
all: $(FWBIN)
CONFVARS_FILE = $(BUILD)/confvars
ifeq ($(wildcard $(CONFVARS_FILE)),)
$(shell $(MKDIR) -p $(BUILD))
$(shell echo $(FROZEN_MANIFEST) $(UART_OS) > $(CONFVARS_FILE))
else ifneq ($(shell cat $(CONFVARS_FILE)), $(FROZEN_MANIFEST) $(UART_OS))
$(shell echo $(FROZEN_MANIFEST) $(UART_OS) > $(CONFVARS_FILE))
endif
$(BUILD)/uart.o: $(CONFVARS_FILE)
FROZEN_EXTRA_DEPS = $(CONFVARS_FILE)
ifneq ($(FROZEN_MANIFEST),)
CFLAGS += -DMICROPY_MODULE_FROZEN_MPY
CFLAGS += -DMICROPY_QSTR_EXTRA_POOL=mp_qstr_frozen_const_pool
CFLAGS += -DMICROPY_MODULE_FROZEN_STR
endif
.PHONY: deploy
deploy: $(BUILD)/firmware-combined.bin
$(ECHO) "Writing $< to the board"
$(Q)esptool.py --port $(PORT) --baud $(BAUD) write_flash --verify --flash_size=$(FLASH_SIZE) --flash_mode=$(FLASH_MODE) 0 $<
erase:
$(ECHO) "Erase flash"
$(Q)esptool.py --port $(PORT) --baud $(BAUD) erase_flash
reset:
echo -e "\r\nimport machine; machine.reset()\r\n" >$(PORT)
$(FWBIN): $(BUILD)/firmware.elf
$(ECHO) "Create $@"
$(Q)esptool.py elf2image $^
$(Q)$(PYTHON) makeimg.py $(BUILD)/firmware.elf-0x00000.bin $(BUILD)/firmware.elf-0x[0-5][1-f]000.bin $@
$(BUILD)/firmware.elf: $(OBJ)
$(ECHO) "LINK $@"
$(Q)$(LD) $(LDFLAGS) -o $@ $^ $(LIBS)
$(Q)$(SIZE) $@
ota:
rm -f $(BUILD)/firmware.elf $(BUILD)/firmware.elf*.bin
$(MAKE) LD_FILES=boards/esp8266_ota.ld FWBIN=$(BUILD)/firmware-ota.bin
include $(TOP)/py/mkrules.mk
clean-modules:
git clean -f -d modules
rm -f $(BUILD)/frozen*.c