65 lines
2.0 KiB
Makefile
65 lines
2.0 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://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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CH32V307_SDK = hw/mcu/wch/ch32v307
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DEPS_SUBMODULES += $(CH32V307_SDK)
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# WCH-SDK paths
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CH32V307_SDK_SRC = $(CH32V307_SDK)/EVT/EXAM/SRC
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include $(TOP)/$(BOARD_PATH)/board.mk
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CFLAGS += \
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-flto \
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-march=rv32imac \
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-mabi=ilp32 \
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-msmall-data-limit=8 \
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-mno-save-restore -Os \
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-fmessage-length=0 \
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-fsigned-char \
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-ffunction-sections \
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-fdata-sections \
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-nostdlib -nostartfiles \
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-DCFG_TUSB_MCU=OPT_MCU_CH32V307 \
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-Xlinker --gc-sections \
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-DBOARD_TUD_MAX_SPEED=OPT_MODE_HIGH_SPEED
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SRC_C += \
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src/portable/wch/dcd_ch32_usbhs.c \
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$(CH32V307_SDK_SRC)/Core/core_riscv.c \
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$(CH32V307_SDK_SRC)/Peripheral/src/ch32v30x_gpio.c \
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$(CH32V307_SDK_SRC)/Peripheral/src/ch32v30x_misc.c \
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$(CH32V307_SDK_SRC)/Peripheral/src/ch32v30x_rcc.c \
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$(CH32V307_SDK_SRC)/Peripheral/src/ch32v30x_usart.c
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SRC_S += \
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$(CH32V307_SDK_SRC)/Startup/startup_ch32v30x_D8C.S
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INC += \
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$(TOP)/$(BOARD_PATH) \
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$(TOP)/$(CH32V307_SDK_SRC)/Peripheral/inc
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# For freeRTOS port source
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FREERTOS_PORTABLE_SRC = $(FREERTOS_PORTABLE_PATH)/RISC-V
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# wch-link is not supported yet in official openOCD yet. We need to either use
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# 1. download openocd as part of mounriver studio http://www.mounriver.com/download or
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# 2. compiled from modified source https://github.com/kprasadvnsi/riscv-openocd-wch
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#
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# Note: For Linux, somehow openocd in mounriver studio does not seem to have wch-link enable,
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# therefore we need to compile it from source as follows:
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# git clone https://github.com/kprasadvnsi/riscv-openocd-wch
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# cd riscv-openocd-wch
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# ./bootstrap
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# ./configure CFLAGS="-Wno-error" --enable-wlink
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# make
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# openocd binaries will be generated in riscv-openocd-wch/src
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# flash target ROM bootloader
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flash: $(BUILD)/$(PROJECT).elf
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openocd -f $(TOP)/$(FAMILY_PATH)/wch-riscv.cfg -c init -c halt -c "program $<" -c wlink_reset_resume -c exit
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