add tinyusb

tinyusb/hw/bsp/stm32l0538disco/board.mk

@@ -0,0 +1,53 @@
+ST_FAMILY = l0
+DEPS_SUBMODULES += lib/CMSIS_5 hw/mcu/st/cmsis_device_$(ST_FAMILY) hw/mcu/st/stm32$(ST_FAMILY)xx_hal_driver
+
+ST_CMSIS = hw/mcu/st/cmsis_device_$(ST_FAMILY)
+ST_HAL_DRIVER = hw/mcu/st/stm32$(ST_FAMILY)xx_hal_driver
+
+CFLAGS += \
+  -flto \
+  -mthumb \
+  -mabi=aapcs \
+  -mcpu=cortex-m0plus \
+  -mfloat-abi=soft \
+  -nostdlib -nostartfiles \
+  -DSTM32L053xx \
+  -DCFG_EXAMPLE_MSC_READONLY \
+  -DCFG_TUSB_MCU=OPT_MCU_STM32L0
+
+# mcu driver cause following warnings
+CFLAGS += -Wno-error=unused-parameter -Wno-error=maybe-uninitialized
+
+# All source paths should be relative to the top level.
+LD_FILE = hw/bsp/$(BOARD)/STM32L053C8Tx_FLASH.ld
+
+SRC_C += \
+  src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c \
+  $(ST_CMSIS)/Source/Templates/system_stm32$(ST_FAMILY)xx.c \
+  $(ST_HAL_DRIVER)/Src/stm32$(ST_FAMILY)xx_hal.c \
+  $(ST_HAL_DRIVER)/Src/stm32$(ST_FAMILY)xx_hal_cortex.c \
+  $(ST_HAL_DRIVER)/Src/stm32$(ST_FAMILY)xx_hal_rcc.c \
+  $(ST_HAL_DRIVER)/Src/stm32$(ST_FAMILY)xx_hal_rcc_ex.c \
+  $(ST_HAL_DRIVER)/Src/stm32$(ST_FAMILY)xx_hal_gpio.c
+
+SRC_S += \
+  $(ST_CMSIS)/Source/Templates/gcc/startup_stm32l053xx.s
+
+INC += \
+  $(TOP)/lib/CMSIS_5/CMSIS/Core/Include \
+  $(TOP)/$(ST_CMSIS)/Include \
+  $(TOP)/$(ST_HAL_DRIVER)/Inc \
+  $(TOP)/hw/bsp/$(BOARD)
+
+# For freeRTOS port source
+FREERTOS_PORT = ARM_CM0
+
+# For flash-jlink target
+JLINK_DEVICE = STM32L053R8
+
+# Path to STM32 Cube Programmer CLI, should be added into system path 
+STM32Prog = STM32_Programmer_CLI
+
+# flash target using on-board stlink
+flash: $(BUILD)/$(PROJECT).elf
+	$(STM32Prog) --connect port=swd --write $< --go