2befcb8a9d
Adds support for hardware i2c to the zephyr port. Similar to other ports such as stm32 and nrf, we only implement the i2c protocol functions (readfrom and writeto) and defer memory operations (readfrom_mem, readfrom_mem_into, and writeto_mem) to the software i2c implementation. This may need to change in the future because zephyr is considering deprecating its i2c_transfer function in favor of i2c_write_read; in this case we would probably want to implement the memory operations directly using i2c_write_read. Tested with the accelerometer on frdm_k64f and bbc_microbit boards.
112 lines
3.3 KiB
Makefile
112 lines
3.3 KiB
Makefile
#
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# This is the main Makefile, which uses MicroPython build system,
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# but Zephyr arch-specific toolchain and target-specific flags.
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# This Makefile builds MicroPython as a library, and then calls
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# recursively Makefile.zephyr to build complete application binary
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# using Zephyr build system.
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#
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# To build a "minimal" configuration, use "make-minimal" wrapper.
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BOARD ?= qemu_x86
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CONF_FILE = prj_$(BOARD)_merged.conf
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OUTDIR_PREFIX = $(BOARD)
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# Default heap size is 16KB, which is on conservative side, to let
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# it build for smaller boards, but it won't be enough for larger
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# applications, and will need to be increased.
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MICROPY_HEAP_SIZE = 16384
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FROZEN_DIR = scripts
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# Default target
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all:
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include ../../py/mkenv.mk
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include $(TOP)/py/py.mk
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# Zephyr (generated) config files - must be defined before include below
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Z_EXPORTS = outdir/$(OUTDIR_PREFIX)/Makefile.export
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ifneq ($(MAKECMDGOALS), clean)
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include $(Z_EXPORTS)
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endif
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INC += -I.
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INC += -I$(TOP)
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INC += -I$(BUILD)
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INC += -I$(ZEPHYR_BASE)/net/ip
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INC += -I$(ZEPHYR_BASE)/net/ip/contiki
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INC += -I$(ZEPHYR_BASE)/net/ip/contiki/os
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SRC_C = main.c \
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help.c \
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modusocket.c \
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modutime.c \
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modzephyr.c \
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modzsensor.c \
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modmachine.c \
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machine_i2c.c \
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machine_pin.c \
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uart_core.c \
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lib/utils/stdout_helpers.c \
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lib/utils/printf.c \
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lib/utils/pyexec.c \
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lib/utils/interrupt_char.c \
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lib/mp-readline/readline.c \
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$(SRC_MOD)
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# List of sources for qstr extraction
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SRC_QSTR += $(SRC_C)
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OBJ = $(PY_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
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CFLAGS = $(Z_CFLAGS) \
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-std=gnu99 -fomit-frame-pointer -DNDEBUG -DMICROPY_HEAP_SIZE=$(MICROPY_HEAP_SIZE) $(CFLAGS_EXTRA) $(INC)
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include $(TOP)/py/mkrules.mk
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GENERIC_TARGETS = all zephyr run qemu qemugdb flash debug debugserver \
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ram_report rom_report
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KCONFIG_TARGETS = \
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initconfig config nconfig menuconfig xconfig gconfig \
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oldconfig silentoldconfig defconfig savedefconfig \
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allnoconfig allyesconfig alldefconfig randconfig \
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listnewconfig olddefconfig
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CLEAN_TARGETS = pristine mrproper
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$(GENERIC_TARGETS): $(LIBMICROPYTHON)
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$(CLEAN_TARGETS): clean
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$(GENERIC_TARGETS) $(KCONFIG_TARGETS) $(CLEAN_TARGETS):
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$(MAKE) -C outdir/$(BOARD) $@
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$(LIBMICROPYTHON): | $(Z_EXPORTS)
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build/genhdr/qstr.i.last: | $(Z_EXPORTS)
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# If we recreate libmicropython, also cause zephyr.bin relink
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LIBMICROPYTHON_EXTRA_CMD = -$(RM) -f outdir/$(OUTDIR_PREFIX)/zephyr.lnk
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# MicroPython's global clean cleans everything, fast
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CLEAN_EXTRA = outdir libmicropython.a prj_*_merged.conf
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# Clean Zephyr things in Zephyr way
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z_clean:
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$(MAKE) -f Makefile.zephyr BOARD=$(BOARD) clean
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# This rule is for prj_$(BOARD)_merged.conf, not $(CONF_FILE), which
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# can be overriden.
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# prj_$(BOARD).conf is optional, that's why it's resolved with $(wildcard)
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# function.
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prj_$(BOARD)_merged.conf: prj_base.conf $(wildcard prj_$(BOARD).conf)
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$(PYTHON) makeprj.py prj_base.conf prj_$(BOARD).conf $@
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test:
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cd $(TOP)/tests && ./run-tests --target minimal --device "execpty:make -C ../ports/zephyr run BOARD=$(BOARD) QEMU_PTY=1"
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cmake: outdir/$(BOARD)/Makefile
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outdir/$(BOARD)/Makefile: $(CONF_FILE)
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mkdir -p outdir/$(BOARD) && cmake -DBOARD=$(BOARD) -DCONF_FILE=$(CONF_FILE) -Boutdir/$(BOARD) -H.
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$(Z_EXPORTS): outdir/$(BOARD)/Makefile
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make --no-print-directory -C outdir/$(BOARD) outputexports CMAKE_COMMAND=: >$@
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make -C outdir/$(BOARD) syscall_macros_h_target syscall_list_h_target kobj_types_h_target
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