first attempt at porting libopencm3 to energymicro
unless sources are explicitly given, the linker scripts and make files were copied over from the stm32/f1 port.
This commit is contained in:
chrysn
96
examples/efm32/tinygecko/Makefile.include
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96
examples/efm32/tinygecko/Makefile.include
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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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## Copyright (C) 2012 chrysn <chrysn@fsfe.org>
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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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GDB = $(PREFIX)-gdb
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# Uncomment this line if you want to use the installed (not local) library.
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#TOOLCHAIN_DIR := $(shell dirname `which $(CC)`)/../$(PREFIX)
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TOOLCHAIN_DIR = ../../../../..
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CFLAGS += -Os -g -Wall -Wextra -I$(TOOLCHAIN_DIR)/include \
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-fno-common -mcpu=cortex-m3 -mthumb -msoft-float -MD -DSTM32F1
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LDSCRIPT ?= ${TOOLCHAIN_DIR}/lib/efm32/tinygecko/$(MCU).ld
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LDFLAGS += -lc -lnosys -L$(TOOLCHAIN_DIR)/lib/efm32/tinygecko \
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-T$(LDSCRIPT) -nostartfiles -Wl,--gc-sections \
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-mthumb -march=armv7 -mfix-cortex-m3-ldrd -msoft-float
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OBJS += $(BINARY).o
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# Be silent per default, but 'make V=1' will show all compiler calls.
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ifneq ($(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) $(TOOLCHAIN_DIR)/lib/efm32/tinygecko/libopencm3_efm32tinygecko.a
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@#printf " LD $(subst $(shell pwd)/,,$(@))\n"
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$(Q)$(LD) -o $(*).elf $(OBJS) -lopencm3_efm32tinygecko $(LDFLAGS)
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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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$(Q)rm -f *.d
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$(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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.PHONY: images clean
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-include $(OBJS:.o=.d)
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25
examples/efm32/tinygecko/efm32-tg-stk3300/Makefile.include
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25
examples/efm32/tinygecko/efm32-tg-stk3300/Makefile.include
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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) 2012 chrysn <chrysn@fsfe.org>
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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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MCU = EFM32TG840F32
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# Linker scripts are always relative to the current directory. This file is
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# intended for inclusion from example subdirectories, so the Makefile.include
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# meant here would be called ../Makefile.include relative to here.
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include ../../Makefile.include
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9
examples/efm32/tinygecko/efm32-tg-stk3300/README
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9
examples/efm32/tinygecko/efm32-tg-stk3300/README
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=========================
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EFM32-TG-STK3300 Examples
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=========================
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Examples in this directory are designed to be run on the Energy Micro EFM32
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Tiny Gecko Starter Kit, which is based on the EFM32TG840F32 MCU, has an onboard
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USB debug and power management interface, and a bunch of peripherials built in
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that demonstrate the chip's low power capabilities (LED, LCD display, light
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sensor, touch slider, LC sensor, push buttons).
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23
examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/Makefile
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23
examples/efm32/tinygecko/efm32-tg-stk3300/miniblink/Makefile
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@@ -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) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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## 2012 chrysn <chrysn@fsfe.org>
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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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@@ -0,0 +1,9 @@
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==========================================
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EFM32-TG-STK3300 Examples miniblink 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 EFM32-TG-STK3300 eval board. It should blink
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the user LED on the board.
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@@ -0,0 +1,72 @@
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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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* 2012 chrysn <chrysn@fsfe.org>
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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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//#include <libopencm3/efm32/tinygecko/gpio.h>
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//
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//void gpio_setup(void)
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//{
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// /* Enable GPIOC clock. */
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// /* Manually: */
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// // RCC_APB2ENR |= RCC_APB2ENR_IOPCEN;
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// /* Using API functions: */
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// rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_IOPCEN);
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//
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// /* Set GPIO8 (in GPIO port C) to 'output push-pull'. */
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// /* Manually: */
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// // GPIOC_CRH = (GPIO_CNF_OUTPUT_PUSHPULL << (((8 - 8) * 4) + 2));
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// // GPIOC_CRH |= (GPIO_MODE_OUTPUT_2_MHZ << ((8 - 8) * 4));
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// /* Using API functions: */
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// gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ,
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// GPIO_CNF_OUTPUT_PUSHPULL, GPIO8);
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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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//
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// gpio_setup();
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//
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// /* Blink the LED (PC8) on the board. */
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// while (1) {
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// /* Manually: */
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// // GPIOC_BSRR = GPIO8; /* LED off */
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// // for (i = 0; i < 800000; i++) /* Wait a bit. */
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// // __asm__("nop");
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// // GPIOC_BRR = GPIO8; /* LED on */
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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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// /* Using API functions gpio_set()/gpio_clear(): */
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// // gpio_set(GPIOC, GPIO8); /* LED off */
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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(GPIOC, GPIO8); /* LED on */
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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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// /* Using API function gpio_toggle(): */
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// gpio_toggle(GPIOC, GPIO8); /* LED on/off */
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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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//
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// return 0;
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for(;;);
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}
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