68 lines
1.8 KiB
Makefile
68 lines
1.8 KiB
Makefile
# https://www.embecosm.com/resources/tool-chain-downloads/#riscv-stable
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#CROSS_COMPILE ?= riscv32-unknown-elf-
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# Toolchain from https://nucleisys.com/download.php
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#CROSS_COMPILE ?= riscv-nuclei-elf-
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# Toolchain from https://github.com/xpack-dev-tools/riscv-none-embed-gcc-xpack
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CROSS_COMPILE ?= riscv-none-embed-
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# Submodules
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NUCLEI_SDK = hw/mcu/gd/nuclei-sdk
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DEPS_SUBMODULES += $(NUCLEI_SDK)
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# Nuclei-SDK paths
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GD32VF103_SDK_SOC = $(NUCLEI_SDK)/SoC/gd32vf103
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GD32VF103_SDK_DRIVER = $(GD32VF103_SDK_SOC)/Common/Source/Drivers
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LIBC_STUBS = $(GD32VF103_SDK_SOC)/Common/Source/Stubs
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STARTUP_ASM = $(GD32VF103_SDK_SOC)/Common/Source/GCC
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include $(TOP)/$(BOARD_PATH)/board.mk
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SKIP_NANOLIB = 1
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CFLAGS += \
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-march=rv32imac \
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-mabi=ilp32 \
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-mcmodel=medlow \
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-mstrict-align \
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-nostdlib -nostartfiles \
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-DCFG_TUSB_MCU=OPT_MCU_GD32VF103 \
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-DDOWNLOAD_MODE=DOWNLOAD_MODE_FLASHXIP
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# mcu driver cause following warnings
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CFLAGS += -Wno-error=unused-parameter
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SRC_C += \
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src/portable/synopsys/dwc2/dcd_dwc2.c \
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$(GD32VF103_SDK_DRIVER)/gd32vf103_rcu.c \
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$(GD32VF103_SDK_DRIVER)/gd32vf103_gpio.c \
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$(GD32VF103_SDK_DRIVER)/Usb/gd32vf103_usb_hw.c \
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$(GD32VF103_SDK_DRIVER)/gd32vf103_usart.c \
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$(LIBC_STUBS)/sbrk.c \
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$(LIBC_STUBS)/close.c \
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$(LIBC_STUBS)/isatty.c \
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$(LIBC_STUBS)/fstat.c \
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$(LIBC_STUBS)/lseek.c \
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$(LIBC_STUBS)/read.c
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SRC_S += \
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$(STARTUP_ASM)/startup_gd32vf103.S \
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$(STARTUP_ASM)/intexc_gd32vf103.S
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INC += \
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$(TOP)/$(BOARD_PATH) \
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$(TOP)/$(NUCLEI_SDK)/NMSIS/Core/Include \
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$(TOP)/$(GD32VF103_SDK_SOC)/Common/Include \
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$(TOP)/$(GD32VF103_SDK_SOC)/Common/Include/Usb
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# For freeRTOS port source
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FREERTOS_PORT = $(FREERTOS_PORT_PATH)/RISC-V
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# For flash-jlink target
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JLINK_IF = jtag
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# flash target ROM bootloader
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flash: $(BUILD)/$(PROJECT).bin
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dfu-util -R -a 0 --dfuse-address 0x08000000 -D $<
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