diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..2a4f367 --- /dev/null +++ b/Makefile @@ -0,0 +1,96 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This library is free software: you can redistribute it and/or modify +## it under the terms of the GNU Lesser General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This library 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 Lesser General Public License for more details. +## +## You should have received a copy of the GNU Lesser General Public License +## along with this library. If not, see . +## + +PREFIX ?= arm-none-eabi- + +TARGETS := stm32/f0 stm32/f1 +TARGETS += sam/d + +# Be silent per default, but 'make V=1' will show all compiler calls. +ifneq ($(V),1) +Q := @ +# Do not print "Entering directory ...". +MAKEFLAGS += --no-print-directory +endif + +OPENCM3_DIR ?= $(realpath libopencm3) +EXAMPLE_RULES = elf + +all: build + +bin: EXAMPLE_RULES += bin +hex: EXAMPLE_RULES += hex +srec: EXAMPLE_RULES += srec +list: EXAMPLE_RULES += list +images: EXAMPLE_RULES += images + +bin: build +hex: build +srec: build +list: build +images: build + +build: lib examples + +lib: + $(Q)if [ ! "`ls -A $(OPENCM3_DIR)`" ] ; then \ + printf "######## ERROR ########\n"; \ + printf "\tlibopencm3 is not initialized.\n"; \ + printf "\tPlease run:\n"; \ + printf "\t$$ git submodule init\n"; \ + printf "\t$$ git submodule update\n"; \ + printf "\tbefore running make.\n"; \ + printf "######## ERROR ########\n"; \ + exit 1; \ + fi + $(Q)$(MAKE) -C $(OPENCM3_DIR) + +EXAMPLE_DIRS:=$(sort $(dir $(wildcard $(addsuffix /*/*/Makefile,$(addprefix examples/,$(TARGETS)))))) +$(EXAMPLE_DIRS): lib + @printf " BUILD $@\n"; + $(Q)$(MAKE) --directory=$@ OPENCM3_DIR=$(OPENCM3_DIR) $(EXAMPLE_RULES) + +examples: $(EXAMPLE_DIRS) + $(Q)true + +examplesclean: $(EXAMPLE_DIRS:=.clean) + +clean: examplesclean styleclean + $(Q)$(MAKE) -C libopencm3 clean + +stylecheck: $(EXAMPLE_DIRS:=.stylecheck) +styleclean: $(EXAMPLE_DIRS:=.styleclean) + + +%.clean: + $(Q)if [ -d $* ]; then \ + printf " CLEAN $*\n"; \ + $(MAKE) -C $* clean OPENCM3_DIR=$(OPENCM3_DIR) || exit $?; \ + fi; + +%.styleclean: + $(Q)$(MAKE) -C $* styleclean OPENCM3_DIR=$(OPENCM3_DIR) + +%.stylecheck: + $(Q)$(MAKE) -C $* stylecheck OPENCM3_DIR=$(OPENCM3_DIR) + + +.PHONY: build lib examples $(EXAMPLE_DIRS) install clean stylecheck styleclean \ + bin hex srec list images + diff --git a/projects/rfdsatt/Makefile b/projects/rfdsatt/Makefile new file mode 100644 index 0000000..29ab0ba --- /dev/null +++ b/projects/rfdsatt/Makefile @@ -0,0 +1,41 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## This library is free software: you can redistribute it and/or modify +## it under the terms of the GNU Lesser General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This library 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 Lesser General Public License for more details. +## +## You should have received a copy of the GNU Lesser General Public License +## along with this library. If not, see . +## + +BINARY = rfdsatt + +LDSCRIPT = ./stm32f103-openblt.ld + + +# include ../../Makefile.include +LIBNAME = opencm3_stm32f1 +DEFS += -DSTM32F1 + +FP_FLAGS ?= -msoft-float +ARCH_FLAGS = -mthumb -mcpu=cortex-m3 $(FP_FLAGS) -mfix-cortex-m3-ldrd + +################################################################################ +# OpenOCD specific variables + +OOCD ?= openocd +OOCD_INTERFACE ?= stlink-v2 +OOCD_TARGET ?= stm32f1x + +all: elf bin srec + +include ../rules.mk diff --git a/projects/rfdsatt/rfdsatt.c b/projects/rfdsatt/rfdsatt.c new file mode 100644 index 0000000..a25411c --- /dev/null +++ b/projects/rfdsatt/rfdsatt.c @@ -0,0 +1,103 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see . + */ + +#include +#include +#include + +static void clock_setup(void) +{ + rcc_clock_setup_in_hsi_out_48mhz(); + + /* Enable GPIOC clock. */ + rcc_periph_clock_enable(RCC_GPIOA); + rcc_periph_clock_enable(RCC_GPIOB); + rcc_periph_clock_enable(RCC_GPIOC); + + /* Enable clocks for USARTs */ + rcc_periph_clock_enable(RCC_USART1); + rcc_periph_clock_enable(RCC_USART2); +} + +static void usart_setup(void) +{ + /* Setup GPIO pin GPIO_USART1_TX. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART1, 115200); + usart_set_databits(USART1, 8); + usart_set_stopbits(USART1, USART_STOPBITS_1); + usart_set_mode(USART1, USART_MODE_TX); + usart_set_parity(USART1, USART_PARITY_NONE); + usart_set_flow_control(USART1, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART1); + + /* Setup GPIO pin GPIO_USART2_TX. */ + gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_50_MHZ, + GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART2_TX); + + /* Setup UART parameters. */ + usart_set_baudrate(USART2, 115200); + usart_set_databits(USART2, 8); + usart_set_stopbits(USART2, USART_STOPBITS_1); + usart_set_mode(USART2, USART_MODE_TX); + usart_set_parity(USART2, USART_PARITY_NONE); + usart_set_flow_control(USART2, USART_FLOWCONTROL_NONE); + + /* Finally enable the USART. */ + usart_enable(USART2); +} + +static void gpio_setup(void) +{ + /* Set GPIO15 (in GPIO port B) to 'output push-pull'. */ + gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_2_MHZ, + GPIO_CNF_OUTPUT_PUSHPULL, GPIO15); +} + +int main(void) +{ + int i, j = 0, c = 0; + + clock_setup(); + gpio_setup(); + usart_setup(); + + /* Blink the LED (PB15) on the board with every transmitted byte. */ + while (1) { + gpio_toggle(GPIOB, GPIO15); /* LED on/off */ + usart_send_blocking(USART1, c + '0'); /* USART1: Send byte. */ + usart_send_blocking(USART2, c + '0'); /* USART2: Send byte. */ + c = (c == 9) ? 0 : c + 1; /* Increment c. */ + if ((j++ % 80) == 0) { /* Newline after line full. */ + usart_send_blocking(USART1, '\r'); + usart_send_blocking(USART1, '\n'); + usart_send_blocking(USART2, '\r'); + usart_send_blocking(USART2, '\n'); + } + for (i = 0; i < 800000; i++) /* Wait a bit. */ + __asm__("nop"); + } + + return 0; +} diff --git a/projects/rfdsatt/stm32f103-openblt.ld b/projects/rfdsatt/stm32f103-openblt.ld new file mode 100644 index 0000000..57b790b --- /dev/null +++ b/projects/rfdsatt/stm32f103-openblt.ld @@ -0,0 +1,32 @@ +/* + * This file is part of the libopencm3 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * This library is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This library 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with this library. If not, see . + */ + +/* Linker script for sysmcoom rfdsatt-4ch (STM32F103XXXX, 64K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + /* first 0x2000 bytes reserved for bootloader */ + rom (rx) : ORIGIN = 0x08002000, LENGTH = 62K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Include the common ld script. */ +INCLUDE cortex-m-generic.ld + diff --git a/projects/rules.mk b/projects/rules.mk new file mode 100644 index 0000000..a63509b --- /dev/null +++ b/projects/rules.mk @@ -0,0 +1,270 @@ +## +## This file is part of the libopencm3 project. +## +## Copyright (C) 2009 Uwe Hermann +## Copyright (C) 2010 Piotr Esden-Tempski +## Copyright (C) 2013 Frantisek Burian +## +## This library is free software: you can redistribute it and/or modify +## it under the terms of the GNU Lesser General Public License as published by +## the Free Software Foundation, either version 3 of the License, or +## (at your option) any later version. +## +## This library 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 Lesser General Public License for more details. +## +## You should have received a copy of the GNU Lesser General Public License +## along with this library. If not, see . +## + +# Be silent per default, but 'make V=1' will show all compiler calls. +ifneq ($(V),1) +Q := @ +NULL := 2>/dev/null +endif + +############################################################################### +# Executables + +PREFIX ?= arm-none-eabi- + +CC := $(PREFIX)gcc +CXX := $(PREFIX)g++ +LD := $(PREFIX)gcc +AR := $(PREFIX)ar +AS := $(PREFIX)as +OBJCOPY := $(PREFIX)objcopy +OBJDUMP := $(PREFIX)objdump +GDB := $(PREFIX)gdb +STFLASH = $(shell which st-flash) +STYLECHECK := /checkpatch.pl +STYLECHECKFLAGS := --no-tree -f --terse --mailback +STYLECHECKFILES := $(shell find . -name '*.[ch]') +OPT := -Os +DEBUG := -ggdb3 +CSTD ?= -std=c99 + + +############################################################################### +# Source files + +OBJS += $(BINARY).o + + +ifeq ($(strip $(OPENCM3_DIR)),) +# user has not specified the library path, so we try to detect it + +# where we search for the library +LIBPATHS := ./libopencm3 ../../libopencm3 ../../../libopencm3 + +OPENCM3_DIR := $(wildcard $(LIBPATHS:=/locm3.sublime-project)) +OPENCM3_DIR := $(firstword $(dir $(OPENCM3_DIR))) + +ifeq ($(strip $(OPENCM3_DIR)),) +$(warning Cannot find libopencm3 library in the standard search paths.) +$(error Please specify it through OPENCM3_DIR variable!) +endif +endif + +ifeq ($(V),1) +$(info Using $(OPENCM3_DIR) path to library) +endif + +define ERR_DEVICE_LDSCRIPT_CONFLICT +You can either specify DEVICE=blah, and have the LDSCRIPT generated, +or you can provide LDSCRIPT, and ensure CPPFLAGS, LDFLAGS and LDLIBS +all contain the correct values for the target you wish to use. +You cannot provide both! +endef + +ifeq ($(strip $(DEVICE)),) +# Old style, assume LDSCRIPT exists +DEFS += -I$(OPENCM3_DIR)/include +LDFLAGS += -L$(OPENCM3_DIR)/lib +LDLIBS += -l$(LIBNAME) +LDSCRIPT ?= $(BINARY).ld +else +# New style, assume device is provided, and we're generating the rest. +ifneq ($(strip $(LDSCRIPT)),) +$(error $(ERR_DEVICE_LDSCRIPT_CONFLICT)) +endif +include $(OPENCM3_DIR)/mk/genlink-config.mk +endif + +OPENCM3_SCRIPT_DIR = $(OPENCM3_DIR)/scripts +EXAMPLES_SCRIPT_DIR = $(OPENCM3_DIR)/../scripts + +############################################################################### +# C flags + +TGT_CFLAGS += $(OPT) $(CSTD) $(DEBUG) +TGT_CFLAGS += $(ARCH_FLAGS) +TGT_CFLAGS += -Wextra -Wshadow -Wimplicit-function-declaration +TGT_CFLAGS += -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes +TGT_CFLAGS += -fno-common -ffunction-sections -fdata-sections + +############################################################################### +# C++ flags + +TGT_CXXFLAGS += $(OPT) $(CXXSTD) $(DEBUG) +TGT_CXXFLAGS += $(ARCH_FLAGS) +TGT_CXXFLAGS += -Wextra -Wshadow -Wredundant-decls -Weffc++ +TGT_CXXFLAGS += -fno-common -ffunction-sections -fdata-sections + +############################################################################### +# C & C++ preprocessor common flags + +TGT_CPPFLAGS += -MD +TGT_CPPFLAGS += -Wall -Wundef +TGT_CPPFLAGS += $(DEFS) + +############################################################################### +# Linker flags + +TGT_LDFLAGS += --static -nostartfiles +TGT_LDFLAGS += -T$(LDSCRIPT) +TGT_LDFLAGS += $(ARCH_FLAGS) $(DEBUG) +TGT_LDFLAGS += -Wl,-Map=$(*).map -Wl,--cref +TGT_LDFLAGS += -Wl,--gc-sections +ifeq ($(V),99) +TGT_LDFLAGS += -Wl,--print-gc-sections +endif + +############################################################################### +# Used libraries + +LDLIBS += -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group + +############################################################################### +############################################################################### +############################################################################### + +.SUFFIXES: .elf .bin .hex .srec .list .map .images +.SECONDEXPANSION: +.SECONDARY: + +all: elf + +elf: $(BINARY).elf +bin: $(BINARY).bin +hex: $(BINARY).hex +srec: $(BINARY).srec +list: $(BINARY).list +GENERATED_BINARIES=$(BINARY).elf $(BINARY).bin $(BINARY).hex $(BINARY).srec $(BINARY).list $(BINARY).map + +images: $(BINARY).images +flash: $(BINARY).flash + +# Either verify the user provided LDSCRIPT exists, or generate it. +ifeq ($(strip $(DEVICE)),) +$(LDSCRIPT): + ifeq (,$(wildcard $(LDSCRIPT))) + $(error Unable to find specified linker script: $(LDSCRIPT)) + endif +else +include $(OPENCM3_DIR)/mk/genlink-rules.mk +endif + +$(OPENCM3_DIR)/lib/lib$(LIBNAME).a: +ifeq (,$(wildcard $@)) + $(warning $(LIBNAME).a not found, attempting to rebuild in $(OPENCM3_DIR)) + $(MAKE) -C $(OPENCM3_DIR) +endif + +# Define a helper macro for debugging make errors online +# you can type "make print-OPENCM3_DIR" and it will show you +# how that ended up being resolved by all of the included +# makefiles. +print-%: + @echo $*=$($*) + +%.images: %.bin %.hex %.srec %.list %.map + @#printf "*** $* images generated ***\n" + +%.bin: %.elf + @#printf " OBJCOPY $(*).bin\n" + $(Q)$(OBJCOPY) -Obinary $(*).elf $(*).bin + +%.hex: %.elf + @#printf " OBJCOPY $(*).hex\n" + $(Q)$(OBJCOPY) -Oihex $(*).elf $(*).hex + +%.srec: %.elf + @#printf " OBJCOPY $(*).srec\n" + $(Q)$(OBJCOPY) -Osrec $(*).elf $(*).srec + +%.list: %.elf + @#printf " OBJDUMP $(*).list\n" + $(Q)$(OBJDUMP) -S $(*).elf > $(*).list + +%.elf %.map: $(OBJS) $(LDSCRIPT) $(OPENCM3_DIR)/lib/lib$(LIBNAME).a + @#printf " LD $(*).elf\n" + $(Q)$(LD) $(TGT_LDFLAGS) $(LDFLAGS) $(OBJS) $(LDLIBS) -o $(*).elf + +%.o: %.c + @#printf " CC $(*).c\n" + $(Q)$(CC) $(TGT_CFLAGS) $(CFLAGS) $(TGT_CPPFLAGS) $(CPPFLAGS) -o $(*).o -c $(*).c + +%.o: %.cxx + @#printf " CXX $(*).cxx\n" + $(Q)$(CXX) $(TGT_CXXFLAGS) $(CXXFLAGS) $(TGT_CPPFLAGS) $(CPPFLAGS) -o $(*).o -c $(*).cxx + +%.o: %.cpp + @#printf " CXX $(*).cpp\n" + $(Q)$(CXX) $(TGT_CXXFLAGS) $(CXXFLAGS) $(TGT_CPPFLAGS) $(CPPFLAGS) -o $(*).o -c $(*).cpp + +clean: + @#printf " CLEAN\n" + $(Q)$(RM) $(GENERATED_BINARIES) generated.* $(OBJS) $(OBJS:%.o=%.d) + +stylecheck: $(STYLECHECKFILES:=.stylecheck) +styleclean: $(STYLECHECKFILES:=.styleclean) + +# the cat is due to multithreaded nature - we like to have consistent chunks of text on the output +%.stylecheck: % + $(Q)$(OPENCM3_SCRIPT_DIR)$(STYLECHECK) $(STYLECHECKFLAGS) $* > $*.stylecheck; \ + if [ -s $*.stylecheck ]; then \ + cat $*.stylecheck; \ + else \ + rm -f $*.stylecheck; \ + fi; + +%.styleclean: + $(Q)rm -f $*.stylecheck; + + +%.stlink-flash: %.bin + @printf " FLASH $<\n" + $(STFLASH) write $(*).bin 0x8000000 + +ifeq ($(BMP_PORT),) +ifeq ($(OOCD_FILE),) +%.flash: %.elf + @printf " FLASH $<\n" + (echo "halt; program $(realpath $(*).elf) verify reset" | nc -4 localhost 4444 2>/dev/null) || \ + $(OOCD) -f interface/$(OOCD_INTERFACE).cfg \ + -f target/$(OOCD_TARGET).cfg \ + -c "program $(*).elf verify reset exit" \ + $(NULL) +else +%.flash: %.elf + @printf " FLASH $<\n" + (echo "halt; program $(realpath $(*).elf) verify reset" | nc -4 localhost 4444 2>/dev/null) || \ + $(OOCD) -f $(OOCD_FILE) \ + -c "program $(*).elf verify reset exit" \ + $(NULL) +endif +else +%.flash: %.elf + @printf " GDB $(*).elf (flash)\n" + $(GDB) --batch \ + -ex 'target extended-remote $(BMP_PORT)' \ + -x $(EXAMPLES_SCRIPT_DIR)/black_magic_probe_flash.scr \ + $(*).elf +endif + +.PHONY: images clean stylecheck styleclean elf bin hex srec list + +-include $(OBJS:.o=.d)