needs to be filled out. blinks though

hw/bsp/stm32f407g_disc1/board.mk

@@ -0,0 +1,26 @@
+CFLAGS = \
+	-DCFG_TUSB_MCU=OPT_MCU_STM32F4 \
+	-DSTM32F407xx \
+	-mthumb \
+	-mabi=aapcs-linux \
+	-mcpu=cortex-m4 \
+	-mfloat-abi=hard \
+	-mfpu=fpv4-sp-d16
+
+# All source paths should be relative to the top level.
+LD_FILE = hw/bsp/stm32f407g_disc1/STM32F407VGTx_FLASH.ld
+
+LDFLAGS += -mthumb -mcpu=cortex-m4
+
+SRC_C += \
+	hw/mcu/stm/stm32f4/Device/ST/STM32F4xx/Source/Templates/system_stm32f4xx.c
+
+SRC_S += \
+	hw/mcu/stm/stm32f4/Device/ST/STM32F4xx/Source/Templates/gcc/startup_stm32f407xx.s
+
+INC += \
+	-I$(TOP)/hw/mcu/stm/stm32f4/Device/ST/STM32F4xx/Include \
+	-I$(TOP)/hw/mcu/stm/stm32f4/Include
+
+VENDOR = stm
+CHIP_FAMILY = stm32f4