Added initial support for the LuminaryMicro LM3S family.
This commit is contained in:
Gareth McMullin
parent
729a48c655
commit
769a932f3e
8
Makefile
8
Makefile
@ -40,14 +40,18 @@ lib:
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$(Q)$(MAKE) -C lib/stm32 all
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@printf " BUILD lib/lpc13xx\n"
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$(Q)$(MAKE) -C lib/lpc13xx all
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@printf " BUILD lib/lm3s\n"
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$(Q)$(MAKE) -C lib/lm3s all
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examples: lib
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@printf " BUILD examples/stm32\n"
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$(Q)$(MAKE) -C examples/stm32 all
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@printf " BUILD examples/lpc13xx\n"
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$(Q)$(MAKE) -C examples/lpc13xx all
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@printf " BUILD examples/lm3s\n"
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$(Q)$(MAKE) -C examples/lm3s all
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install: build
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install: lib
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@printf " INSTALL headers\n"
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$(Q)$(INSTALL) -d $(INCDIR)/libopencm3
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$(Q)$(INSTALL) -d $(LIBDIR)
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@ -62,6 +66,8 @@ clean:
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$(Q)$(MAKE) -C lib/stm32 clean
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$(Q)$(MAKE) -C examples/lpc13xx clean
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$(Q)$(MAKE) -C lib/lpc13xx clean
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$(Q)$(MAKE) -C examples/lm3s clean
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$(Q)$(MAKE) -C lib/lm3s clean
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.PHONY: build lib examples install clean
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38
examples/lm3s/Makefile
Normal file
38
examples/lm3s/Makefile
Normal file
@ -0,0 +1,38 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
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##
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## This program is free software: you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see <http://www.gnu.org/licenses/>.
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##
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# Be silent per default, but 'make V=1' will show all compiler calls.
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ifneq ($(V),1)
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Q := @
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# Do not print "Entering directory ...".
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MAKEFLAGS += --no-print-directory
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endif
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all: lm3s3748-evb
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lm3s3748-evb:
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@printf " BUILD examples/lm3s/lm3s3748-evb\n"
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$(Q)$(MAKE) -C lm3s3748-evb
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clean:
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@printf " CLEAN examples/lm3s/lm3s3748-evb\n"
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$(Q)$(MAKE) -C lm3s3748-evb clean
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.PHONY: lm3s3748-evb clean
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121
examples/lm3s/Makefile.include
Normal file
121
examples/lm3s/Makefile.include
Normal file
@ -0,0 +1,121 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
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##
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## This program is free software: you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see <http://www.gnu.org/licenses/>.
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##
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# PREFIX ?= arm-none-eabi
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PREFIX ?= arm-elf
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CC = $(PREFIX)-gcc
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LD = $(PREFIX)-gcc
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OBJCOPY = $(PREFIX)-objcopy
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OBJDUMP = $(PREFIX)-objdump
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# Uncomment this line if you want to use the installed (not local) library.
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# TOOLCHAIN_DIR = `dirname \`which $(CC)\``/../$(PREFIX)
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TOOLCHAIN_DIR = ../../../..
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CFLAGS += -O0 -g3 -Wall -Wextra -I$(TOOLCHAIN_DIR)/include -fno-common \
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-mcpu=cortex-m3 -mthumb
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LDSCRIPT = $(BINARY).ld
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LDFLAGS += -L$(TOOLCHAIN_DIR)/lib -L$(TOOLCHAIN_DIR)/lib/lm3s \
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-T$(LDSCRIPT) -nostartfiles -Wl,--gc-sections
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OBJS += $(BINARY).o
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OOCD ?= openocd
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OOCD_INTERFACE ?= flossjtag
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OOCD_BOARD ?= olimex_stm32_h103
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# FIXME
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# Be silent per default, but 'make V=1' will show all compiler calls.
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ifneq ($(V),1)
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Q := @
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NULL := 2>/dev/null
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else
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LDFLAGS += -Wl,--print-gc-sections
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endif
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.SUFFIXES: .elf .bin .hex .srec .list .images
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.SECONDEXPANSION:
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.SECONDARY:
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all: images
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images: $(BINARY).images
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flash: $(BINARY).flash
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%.images: %.bin %.hex %.srec %.list
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@#echo "*** $* images generated ***"
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%.bin: %.elf
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@#printf " OBJCOPY $(*).bin\n"
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$(Q)$(OBJCOPY) -Obinary $(*).elf $(*).bin
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%.hex: %.elf
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@#printf " OBJCOPY $(*).hex\n"
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$(Q)$(OBJCOPY) -Oihex $(*).elf $(*).hex
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%.srec: %.elf
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@#printf " OBJCOPY $(*).srec\n"
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$(Q)$(OBJCOPY) -Osrec $(*).elf $(*).srec
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%.list: %.elf
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@#printf " OBJDUMP $(*).list\n"
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$(Q)$(OBJDUMP) -S $(*).elf > $(*).list
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%.elf: $(OBJS) $(LDSCRIPT)
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@#printf " LD $(subst $(shell pwd)/,,$(@))\n"
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$(Q)$(LD) $(LDFLAGS) -o $(*).elf $(OBJS) -lopencm3_lm3s
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%.o: %.c Makefile
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@#printf " CC $(subst $(shell pwd)/,,$(@))\n"
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$(Q)$(CC) $(CFLAGS) -o $@ -c $<
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clean:
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$(Q)rm -f *.o
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$(Q)rm -f *.elf
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$(Q)rm -f *.bin
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$(Q)rm -f *.hex
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$(Q)rm -f *.srec
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$(Q)rm -f *.list
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# FIXME: Replace STM32 stuff with proper LPC13XX OpenOCD support later.
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ifeq ($(OOCD_SERIAL),)
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%.flash: %.hex
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@printf " FLASH $<\n"
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@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
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$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
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-f board/$(OOCD_BOARD).cfg \
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-c "init" -c "reset init" \
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-c "stm32x mass_erase 0" \
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-c "flash write_image $(*).hex" \
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-c "reset" \
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-c "shutdown" $(NULL)
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else
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%.flash: %.hex
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@printf " FLASH $<\n"
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@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
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$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
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-f board/$(OOCD_BOARD).cfg \
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-c "ft2232_serial $(OOCD_SERIAL)" \
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-c "init" -c "reset init" \
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-c "stm32x mass_erase 0" \
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-c "flash write_image $(*).hex" \
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-c "reset" \
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-c "shutdown" $(NULL)
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endif
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.PHONY: images clean
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38
examples/lm3s/lm3s3748-evb/Makefile
Normal file
38
examples/lm3s/lm3s3748-evb/Makefile
Normal file
@ -0,0 +1,38 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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##
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## This program is free software: you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see <http://www.gnu.org/licenses/>.
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##
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# Be silent per default, but 'make V=1' will show all compiler calls.
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ifneq ($(V),1)
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Q := @
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# Do not print "Entering directory ...".
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MAKEFLAGS += --no-print-directory
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endif
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all: miniblink
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miniblink:
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@printf " BUILD examples/lm3s/lm3s3748-evb/miniblink\n"
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$(Q)$(MAKE) -C miniblink
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clean:
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@printf " CLEAN examples/lm3s/lm3s3748-evb/miniblink\n"
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$(Q)$(MAKE) -C miniblink clean
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.PHONY: miniblink clean
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23
examples/lm3s/lm3s3748-evb/miniblink/Makefile
Normal file
23
examples/lm3s/lm3s3748-evb/miniblink/Makefile
Normal file
@ -0,0 +1,23 @@
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##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
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##
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## This program is free software: you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
|
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see <http://www.gnu.org/licenses/>.
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##
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BINARY = miniblink
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include ../../Makefile.include
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9
examples/lm3s/lm3s3748-evb/miniblink/README
Normal file
9
examples/lm3s/lm3s3748-evb/miniblink/README
Normal file
@ -0,0 +1,9 @@
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------------------------------------------------------------------------------
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README
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------------------------------------------------------------------------------
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This is the smallest-possible example program using libopencm3.
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It's intended for the LuminaryMicro LM3S3748-EVB.
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It should blink the STATUS LED on the board.
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52
examples/lm3s/lm3s3748-evb/miniblink/miniblink.c
Normal file
52
examples/lm3s/lm3s3748-evb/miniblink/miniblink.c
Normal file
@ -0,0 +1,52 @@
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2011 Gareth McMullin <gareth@blacksphere.co.nz>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation, either version 3 of the License, or
|
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
|
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <libopencm3/lm3s/systemcontrol.h>
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#include <libopencm3/lm3s/gpio.h>
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void gpio_setup(void)
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{
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SYSTEMCONTROL_RCGC2 |= 0x20; /* Enable GPIOF in run mode. */
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GPIO_DIR(GPIOF) |= (1 << 0); /* Configure PF0 as output. */
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GPIO_DEN(GPIOF) |= (1 << 0); /* Enable digital function on PF0 */
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}
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int main(void)
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{
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int i;
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gpio_setup();
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/* Blink STATUS LED (PF0) on the board. */
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while (1) {
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gpio_set(GPIOF, GPIO0);
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for (i = 0; i < 800000; i++) /* Wait a bit. */
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__asm__("nop");
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gpio_clear(GPIOF, GPIO0);
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for (i = 0; i < 800000; i++) /* Wait a bit. */
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__asm__("nop");
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}
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return 0;
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}
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31
examples/lm3s/lm3s3748-evb/miniblink/miniblink.ld
Normal file
31
examples/lm3s/lm3s3748-evb/miniblink/miniblink.ld
Normal file
@ -0,0 +1,31 @@
|
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/*
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* This file is part of the libopencm3 project.
|
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*
|
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* Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
|
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*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
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/* Linker script for LM3S3748-EVB */
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|
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/* Define memory regions. */
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MEMORY
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{
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rom (rx) : ORIGIN = 0x00000000, LENGTH = 128K
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ram (rwx) : ORIGIN = 0x20000000, LENGTH = 64K
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}
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|
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/* Include the common ld script. */
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INCLUDE libopencm3_lm3s.ld
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|
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57
lib/lm3s/Makefile
Normal file
57
lib/lm3s/Makefile
Normal file
@ -0,0 +1,57 @@
|
||||
##
|
||||
## This file is part of the libopencm3 project.
|
||||
##
|
||||
## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
|
||||
##
|
||||
## This program is free software: you can redistribute it and/or modify
|
||||
## it under the terms of the GNU General Public License as published by
|
||||
## the Free Software Foundation, either version 3 of the License, or
|
||||
## (at your option) any later version.
|
||||
##
|
||||
## This program is distributed in the hope that it will be useful,
|
||||
## but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
## GNU General Public License for more details.
|
||||
##
|
||||
## You should have received a copy of the GNU General Public License
|
||||
## along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
##
|
||||
|
||||
LIBNAME = libopencm3_lm3s
|
||||
|
||||
# PREFIX ?= arm-none-eabi
|
||||
PREFIX ?= arm-elf
|
||||
CC = $(PREFIX)-gcc
|
||||
AR = $(PREFIX)-ar
|
||||
CFLAGS = -Os -g -Wall -Wextra -I../../include -fno-common \
|
||||
-mcpu=cortex-m3 -mthumb -Wstrict-prototypes \
|
||||
-ffunction-sections -fdata-sections
|
||||
# ARFLAGS = rcsv
|
||||
ARFLAGS = rcs
|
||||
OBJS = gpio.o \
|
||||
vector.o
|
||||
|
||||
# VPATH += ../usb
|
||||
|
||||
# Be silent per default, but 'make V=1' will show all compiler calls.
|
||||
ifneq ($(V),1)
|
||||
Q := @
|
||||
endif
|
||||
|
||||
all: $(LIBNAME).a
|
||||
|
||||
$(LIBNAME).a: $(OBJS)
|
||||
@printf " AR $(subst $(shell pwd)/,,$(@))\n"
|
||||
$(Q)$(AR) $(ARFLAGS) $@ $^
|
||||
|
||||
%.o: %.c
|
||||
@printf " CC $(subst $(shell pwd)/,,$(@))\n"
|
||||
$(Q)$(CC) $(CFLAGS) -o $@ -c $<
|
||||
|
||||
clean:
|
||||
@printf " CLEAN lib/lpc13xx\n"
|
||||
$(Q)rm -f *.o
|
||||
$(Q)rm -f $(LIBNAME).a
|
||||
|
||||
.PHONY: clean
|
||||
|
||||
32
lib/lm3s/gpio.c
Normal file
32
lib/lm3s/gpio.c
Normal file
@ -0,0 +1,32 @@
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* Copyright (C) 2011 Gareth McMullin <gareth@blacksphere.co.nz>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include <libopencm3/lm3s/gpio.h>
|
||||
|
||||
void gpio_set(u32 gpioport, u8 gpios)
|
||||
{
|
||||
/* ipaddr[9:2] mask the bits to be set, hence the array index */
|
||||
GPIO_DATA(gpioport)[gpios] = 0xff;
|
||||
}
|
||||
|
||||
void gpio_clear(u32 gpioport, u8 gpios)
|
||||
{
|
||||
GPIO_DATA(gpioport)[gpios] = 0;
|
||||
}
|
||||
|
||||
63
lib/lm3s/libopencm3_lm3s.ld
Normal file
63
lib/lm3s/libopencm3_lm3s.ld
Normal file
@ -0,0 +1,63 @@
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
/* Generic linker script for LM3S targets using libopencm3. */
|
||||
|
||||
/* Memory regions must be defined in the ld script which includes this one. */
|
||||
|
||||
/* Enforce emmition of the vector table */
|
||||
EXTERN (vector_table)
|
||||
|
||||
/* Define sections. */
|
||||
SECTIONS
|
||||
{
|
||||
. = ORIGIN(rom);
|
||||
|
||||
.text : {
|
||||
*(.vectors) /* Vector table */
|
||||
*(.text*) /* Program code */
|
||||
*(.rodata*) /* Read-only data */
|
||||
_etext = .;
|
||||
} >rom
|
||||
|
||||
. = ORIGIN(ram);
|
||||
|
||||
.data : {
|
||||
_data = .;
|
||||
*(.data*) /* Read-write initialized data */
|
||||
_edata = .;
|
||||
} >ram AT >rom
|
||||
|
||||
.bss : {
|
||||
*(.bss*) /* Read-write zero initialized data */
|
||||
*(COMMON)
|
||||
_ebss = .;
|
||||
} >ram AT >rom
|
||||
|
||||
/*
|
||||
* The .eh_frame section appears to be used for C++ exception handling.
|
||||
* You may need to fix this if you're using C++.
|
||||
*/
|
||||
/DISCARD/ : { *(.eh_frame) }
|
||||
|
||||
end = .;
|
||||
}
|
||||
|
||||
PROVIDE(_stack = 0x20000800);
|
||||
|
||||
96
lib/lm3s/vector.c
Normal file
96
lib/lm3s/vector.c
Normal file
@ -0,0 +1,96 @@
|
||||
/*
|
||||
* This file is part of the libopencm3 project.
|
||||
*
|
||||
* Copyright (C) 2011 Gareth McMullin <gareth@blacksphere.co.nz>
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#define WEAK __attribute__ ((weak))
|
||||
|
||||
/* Symbols exported by linker script */
|
||||
extern unsigned _etext, _data, _edata, _ebss, _stack;
|
||||
|
||||
void main(void);
|
||||
void reset_handler(void);
|
||||
void blocking_handler(void);
|
||||
void null_handler(void);
|
||||
|
||||
void WEAK nmi_handler(void);
|
||||
void WEAK hard_fault_handler(void);
|
||||
void WEAK mem_manage_handler(void);
|
||||
void WEAK bus_fault_handler(void);
|
||||
void WEAK usage_fault_handler(void);
|
||||
void WEAK sv_call_handler(void);
|
||||
void WEAK debug_monitor_handler(void);
|
||||
void WEAK pend_sv_handler(void);
|
||||
void WEAK sys_tick_handler(void);
|
||||
|
||||
/* TODO: Interrupt handler prototypes */
|
||||
|
||||
__attribute__ ((section(".vectors")))
|
||||
void (*const vector_table[]) (void) = {
|
||||
(void*)&_stack,
|
||||
reset_handler,
|
||||
nmi_handler,
|
||||
hard_fault_handler,
|
||||
mem_manage_handler,
|
||||
bus_fault_handler,
|
||||
usage_fault_handler,
|
||||
0, 0, 0, 0, /* Reserved */
|
||||
sv_call_handler,
|
||||
debug_monitor_handler,
|
||||
0, /* Reserved */
|
||||
pend_sv_handler,
|
||||
sys_tick_handler,
|
||||
|
||||
/* TODO: Interrupt handlers */
|
||||
};
|
||||
|
||||
void reset_handler(void)
|
||||
{
|
||||
volatile unsigned *src, *dest;
|
||||
asm("MSR msp, %0" : : "r"(&_stack));
|
||||
|
||||
for (src = &_etext, dest = &_data; dest < &_edata; src++, dest++)
|
||||
*dest = *src;
|
||||
|
||||
while (dest < &_ebss)
|
||||
*dest++ = 0;
|
||||
|
||||
/* Call the application's entry point. */
|
||||
main();
|
||||
}
|
||||
|
||||
void blocking_handler(void)
|
||||
{
|
||||
while (1) ;
|
||||
}
|
||||
|
||||
void null_handler(void)
|
||||
{
|
||||
/* Do nothing. */
|
||||
}
|
||||
|
||||
#pragma weak nmi_handler = null_handler
|
||||
#pragma weak hard_fault_handler = blocking_handler
|
||||
#pragma weak mem_manage_handler = blocking_handler
|
||||
#pragma weak bus_fault_handler = blocking_handler
|
||||
#pragma weak usage_fault_handler = blocking_handler
|
||||
#pragma weak sv_call_handler = null_handler
|
||||
#pragma weak debug_monitor_handler = null_handler
|
||||
#pragma weak pend_sv_handler = null_handler
|
||||
#pragma weak sys_tick_handler = null_handler
|
||||
/* TODO: Interrupt handler weak aliases */
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user