Initial project setup

managed_components/espressif__tinyusb/hw/bsp/spresense/board.mk

@@ -0,0 +1,75 @@
+# Platforms are: Linux, Darwin, MSYS, CYGWIN
+PLATFORM := $(firstword $(subst _, ,$(shell uname -s 2>/dev/null)))
+
+ifeq ($(PLATFORM),Darwin)
+  # macOS
+  MKSPK = $(TOP)/hw/mcu/sony/cxd56/mkspk/mkspk
+else ifeq ($(PLATFORM),Linux)
+  # Linux
+  MKSPK = $(TOP)/hw/mcu/sony/cxd56/mkspk/mkspk
+else
+  # Cygwin/MSYS2
+  MKSPK = $(TOP)/hw/mcu/sony/cxd56/mkspk/mkspk.exe
+endif
+
+SERIAL ?= /dev/ttyUSB0
+
+CFLAGS += \
+	-DCONFIG_HAVE_DOUBLE \
+	-Dmain=spresense_main \
+	-pipe \
+	-std=gnu11 \
+	-mcpu=cortex-m4 \
+	-mthumb \
+	-mfpu=fpv4-sp-d16 \
+	-mfloat-abi=hard \
+	-mabi=aapcs \
+	-fno-builtin \
+	-fno-strength-reduce \
+	-fomit-frame-pointer \
+	-Wno-error=undef \
+	-Wno-error=cast-align \
+	-Wno-error=unused-parameter \
+	-DCFG_TUSB_MCU=OPT_MCU_CXD56 \
+
+# suppress following warnings from mcu driver
+# lwip/src/core/raw.c:334:43: error: declaration of 'recv' shadows a global declaration
+CFLAGS += -Wno-error=shadow  -Wno-error=redundant-decls
+
+LDFLAGS_GCC += -specs=nosys.specs -specs=nano.specs
+
+SPRESENSE_SDK = $(TOP)/hw/mcu/sony/cxd56/spresense-exported-sdk
+
+SRC_C += src/portable/sony/cxd56/dcd_cxd56.c
+
+INC += \
+	$(SPRESENSE_SDK)/nuttx/include \
+	$(SPRESENSE_SDK)/nuttx/arch \
+	$(SPRESENSE_SDK)/nuttx/arch/chip \
+	$(SPRESENSE_SDK)/nuttx/arch/os \
+	$(SPRESENSE_SDK)/sdk/include \
+
+LIBS += \
+	$(SPRESENSE_SDK)/nuttx/libs/libapps.a \
+	$(SPRESENSE_SDK)/nuttx/libs/libnuttx.a \
+
+LD_FILE = hw/mcu/sony/cxd56/spresense-exported-sdk/nuttx/scripts/ramconfig.ld
+
+LDFLAGS += \
+	-Xlinker --entry=__start \
+	-nostartfiles \
+	-nodefaultlibs \
+	-Wl,--gc-sections \
+	-u spresense_main
+
+$(MKSPK): $(BUILD)/$(PROJECT).elf
+	$(MAKE) -C $(TOP)/hw/mcu/sony/cxd56/mkspk
+
+$(BUILD)/$(PROJECT).spk: $(MKSPK)
+	@echo CREATE $@
+	@$(MKSPK) -c 2 $(BUILD)/$(PROJECT).elf nuttx $@
+
+# flash
+flash: $(BUILD)/$(PROJECT).spk
+	@echo FLASH $<
+	@$(PYTHON) $(TOP)/hw/mcu/sony/cxd56/tools/flash_writer.py -s -c $(SERIAL) -d -b 115200 -n $<