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micropython/ports/samd/Makefile
Angus Gratton 26d5032980 samd: Switch TinyUSB to run via a scheduled task. 
Previously the TinyUSB task was run in the ISR immediately after the
interrupt handler.  This approach gives very similar performance (no change
in CDC throughput tests) but reduces the amount of time spent in the ISR,
and allows TinyUSB callbacks to run in thread mode.

This work was funded through GitHub Sponsors.

Signed-off-by: Angus Gratton <angus@redyak.com.au>
2023-11-09 12:30:04 +11:00

223 lines
6.1 KiB
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 $(BOARD_DIR:/=))
else
# If not given on the command line, then default to ADAFRUIT_ITSYBITSY_M4_EXPRESS.
BOARD ?= ADAFRUIT_ITSYBITSY_M4_EXPRESS
BOARD_DIR ?= boards/$(BOARD)
endif
ifeq ($(wildcard $(BOARD_DIR)/.),)
$(error Invalid BOARD specified: $(BOARD_DIR))
endif
BUILD ?= build-$(BOARD)
CROSS_COMPILE ?= arm-none-eabi-
UF2CONV ?= $(TOP)/tools/uf2conv.py
MCU_SERIES_LOWER = $(shell echo $(MCU_SERIES) | tr '[:upper:]' '[:lower:]')
include ../../py/mkenv.mk
include $(BOARD_DIR)/mpconfigboard.mk
include mcu/$(MCU_SERIES_LOWER)/mpconfigmcu.mk
# Qstr definitions (must come before including py.mk)
QSTR_DEFS = qstrdefsport.h
QSTR_GLOBAL_DEPENDENCIES = $(BOARD_DIR)/mpconfigboard.h mcu/$(MCU_SERIES_LOWER)/mpconfigmcu.h
FROZEN_MANIFEST ?= boards/manifest.py
# Include py core make definitions
include $(TOP)/py/py.mk
include $(TOP)/extmod/extmod.mk
GIT_SUBMODULES += lib/asf4 lib/tinyusb
INC += -I.
INC += -I$(TOP)
INC += -I$(BUILD)
INC += -I$(BOARD_DIR)
INC += -Imcu/$(MCU_SERIES_LOWER)
INC += -I$(TOP)/lib/cmsis/inc
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/hal/include
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/hal/utils/include
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/config
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/hri
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/hpl/core
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/hpl/gclk
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/hpl/pm
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/hpl/port
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/hpl/rtc
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/hpl/tc
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/include
INC += -I$(TOP)/lib/asf4/$(MCU_SERIES_LOWER)/include/pio
INC += -I$(TOP)/lib/tinyusb/src
MAKE_PINS = boards/make-pins.py
BOARD_PINS = $(BOARD_DIR)/pins.csv
PREFIX_FILE = boards/pins_prefix.c
AF_FILE = mcu/$(MCU_SERIES_LOWER)/pin-af-table.csv
GEN_PINS_SRC = $(BUILD)/pins_$(BOARD).c
GEN_PINS_HDR = $(HEADER_BUILD)/pins.h
CFLAGS += $(INC) -Wall -Werror -std=c99 -nostdlib -mthumb $(CFLAGS_MCU) -fsingle-precision-constant -Wdouble-promotion
CFLAGS += -DMCU_$(MCU_SERIES) -D__$(CMSIS_MCU)__
CFLAGS += $(CFLAGS_EXTRA)
CFLAGS += -DMICROPY_HW_CODESIZE=$(MICROPY_HW_CODESIZE)
LDFLAGS += -nostdlib $(addprefix -T,$(LD_FILES)) -Map=$@.map --cref
LDFLAGS += --defsym=_codesize=$(MICROPY_HW_CODESIZE)
LIBS += $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
# Tune for Debugging or Optimization
CFLAGS += -g # always include debug info in the ELF
ifeq ($(DEBUG),1)
CFLAGS += -O0
else
CFLAGS += -Os -DNDEBUG
LDFLAGS += --gc-sections --print-memory-usage
CFLAGS += -fdata-sections -ffunction-sections
endif
# Flags for optional C++ source code
CXXFLAGS += $(filter-out -std=c99,$(CFLAGS))
# TODO make this common -- shouldn't be using these "private" vars from py.mk
ifneq ($(SRC_CXX)$(SRC_USERMOD_CXX)$(SRC_USERMOD_LIB_CXX),)
LIBSTDCPP_FILE_NAME = "$(shell $(CXX) $(CXXFLAGS) -print-file-name=libstdc++.a)"
LDFLAGS += -L"$(shell dirname $(LIBSTDCPP_FILE_NAME))"
endif
LDFLAGS += --wrap=dcd_event_handler
MPY_CROSS_FLAGS += -march=$(MPY_CROSS_MCU_ARCH)
SRC_C += \
mcu/$(MCU_SERIES_LOWER)/clock_config.c \
help.c \
machine_bitstream.c \
machine_dac.c \
machine_i2c.c \
machine_pin.c \
machine_rtc.c \
machine_spi.c \
main.c \
modmachine.c \
modsamd.c \
mphalport.c \
pendsv.c \
pin_af.c \
samd_flash.c \
samd_isr.c \
samd_qspiflash.c \
samd_soc.c \
samd_spiflash.c \
tusb_port.c \
SHARED_SRC_C += \
drivers/dht/dht.c \
shared/runtime/mpirq.c \
shared/libc/printf.c \
shared/libc/string0.c \
shared/readline/readline.c \
shared/runtime/gchelper_native.c \
shared/runtime/interrupt_char.c \
shared/runtime/pyexec.c \
shared/runtime/softtimer.c \
shared/runtime/stdout_helpers.c \
shared/runtime/sys_stdio_mphal.c \
shared/timeutils/timeutils.c \
shared/tinyusb/mp_cdc_common.c \
shared/tinyusb/mp_usbd.c
ASF4_SRC_C += $(addprefix lib/asf4/$(MCU_SERIES_LOWER)/,\
hal/src/hal_atomic.c \
hal/src/hal_flash.c \
hpl/nvmctrl/hpl_nvmctrl.c \
)
LIBM_SRC_C += $(addprefix lib/libm/,\
acoshf.c \
asinfacosf.c \
asinhf.c \
atan2f.c \
atanf.c \
atanhf.c \
ef_rem_pio2.c \
ef_sqrt.c \
erf_lgamma.c \
fmodf.c \
kf_cos.c \
kf_rem_pio2.c \
kf_sin.c \
kf_tan.c \
log1pf.c \
math.c \
nearbyintf.c \
roundf.c \
sf_cos.c \
sf_erf.c \
sf_frexp.c \
sf_ldexp.c \
sf_modf.c \
sf_sin.c \
sf_tan.c \
wf_lgamma.c \
wf_tgamma.c \
)
TINYUSB_SRC_C += $(addprefix lib/tinyusb/src/,\
class/cdc/cdc_device.c \
common/tusb_fifo.c \
device/usbd.c \
device/usbd_control.c \
portable/microchip/samd/dcd_samd.c \
tusb.c \
)
DRIVERS_SRC_C += \
drivers/bus/softspi.c \
# List of sources for qstr extraction
SRC_QSTR += $(SRC_C) $(SHARED_SRC_C) $(SRC_CXX) $(GEN_PINS_SRC)
OBJ += $(PY_O)
OBJ += $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(SRC_CXX:.cpp=.o))
OBJ += $(addprefix $(BUILD)/, $(SRC_S:.s=.o))
OBJ += $(addprefix $(BUILD)/, $(SHARED_SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(ASF4_SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(LIBM_SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(DRIVERS_SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(TINYUSB_SRC_C:.c=.o))
OBJ += $(GEN_PINS_SRC:.c=.o)
all: $(BUILD)/firmware.uf2
$(BUILD)/firmware.elf: $(OBJ)
$(ECHO) "LINK $@"
$(Q)$(LD) $(LDFLAGS) -o $@ $^ $(LIBS)
$(BUILD)/firmware.bin: $(BUILD)/firmware.elf
$(Q)$(OBJCOPY) -O binary -j .isr_vector -j .text -j .data $^ $(BUILD)/firmware.bin
$(BUILD)/firmware.uf2: $(BUILD)/firmware.bin
$(Q)$(PYTHON) $(UF2CONV) -b $(TEXT0) -c -o $@ $<
# pin_af.c: $(BUILD)/$(GEN_PIN_AF) | $(HEADER_BUILD)
# Use a pattern rule here so that make will only call make-pins.py once to make
# both pins_$(BOARD).c and pins.h
$(BUILD)/%_$(BOARD).c $(HEADER_BUILD)/%.h: $(BOARD_DIR)/%.csv $(MAKE_PINS) $(AF_FILE) $(PREFIX_FILE) | $(HEADER_BUILD)
$(ECHO) "GEN $@"
$(Q)$(PYTHON) $(MAKE_PINS) --board-csv $(BOARD_PINS) --af-csv $(AF_FILE) --prefix $(PREFIX_FILE) \
--output-source $(GEN_PINS_SRC) --output-header $(GEN_PINS_HDR) \
--mcu $(MCU_SERIES)
include $(TOP)/py/mkrules.mk
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