From 0efee48451d7eff92b7e6bd455aa0ef04b9afe17 Mon Sep 17 00:00:00 2001 From: Uwe Hermann Date: Thu, 16 Jul 2009 14:29:00 +0200 Subject: Add first example project (framework) using libopenstm32. This is intended as a small blink example for the Olimex STM32-H103 board. It doesn't do anything useful (yet), but it builds fine. There's a sample Makefile and a preliminary ld script (which probably needs some more work). --- example/Makefile | 42 +++++++++++++++++++++++++++++++++++++++++ example/blink.c | 27 +++++++++++++++++++++++++++ example/blink.ld | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ lib/Makefile | 3 ++- 4 files changed, 128 insertions(+), 1 deletion(-) create mode 100644 example/Makefile create mode 100644 example/blink.c create mode 100644 example/blink.ld diff --git a/example/Makefile b/example/Makefile new file mode 100644 index 0000000..b6f4f9a --- /dev/null +++ b/example/Makefile @@ -0,0 +1,42 @@ +## +## This file is part of the libopenstm32 project. +## +## Copyright (C) 2009 Uwe Hermann +## +## 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 2 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, write to the Free Software +## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## + +BINARY = blink + +# PREFIX ?= arm-none-eabi +PREFIX ?= arm-elf +CC = $(PREFIX)-gcc +LD = $(PREFIX)-ld +CFLAGS = -Os -g -Wall -Wextra -I../include -fno-common \ + -mcpu=cortex-m3 -mthumb +LDFLAGS = -L../lib -T$(BINARY).ld -nostartfiles +OBJS = $(BINARY).o + +all: $(BINARY) + +$(BINARY): $(OBJS) $(BINARY).ld + $(LD) $(LDFLAGS) -o $(BINARY) $(OBJS) -lopenstm32 + +$(BINARY).o: $(BINARY).c + $(CC) $(CFLAGS) -c $(BINARY).c + +clean: + rm -f *.o $(BINARY) + diff --git a/example/blink.c b/example/blink.c new file mode 100644 index 0000000..aa68322 --- /dev/null +++ b/example/blink.c @@ -0,0 +1,27 @@ +/* + * This file is part of the libopenstm32 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include + +int main(void) +{ + /* TODO */ + return 0; +} diff --git a/example/blink.ld b/example/blink.ld new file mode 100644 index 0000000..c57079c --- /dev/null +++ b/example/blink.ld @@ -0,0 +1,57 @@ +/* + * This file is part of the libopenstm32 project. + * + * Copyright (C) 2009 Uwe Hermann + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* Linker script for Olimex STM32-H103 (STM32F103RBT6, 128K flash, 20K RAM). */ + +/* Define memory regions. */ +MEMORY +{ + rom (rx) : ORIGIN = 0x00000000, LENGTH = 128K + ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K +} + +/* Define sections. */ +SECTIONS +{ + . = ORIGIN(rom); + + .text : { + *(.text) /* Program code */ + *(.rodata) /* Read-only data */ + } >rom + + . = ORIGIN(ram); + + .data : { + *(.data) /* Read-write initialized data */ + } >ram AT >rom + + .bss : { + *(.bss) /* Read-write zero initialized data */ + } >ram AT >rom + + /* Discard useless sections. */ + /DISCARD/ : { + *(.comment) + *(.comment.*) + *(.note) + *(.note.*) + } +} diff --git a/lib/Makefile b/lib/Makefile index fb0440e..8a56abf 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -18,6 +18,8 @@ ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ## +LIBNAME = libopenstm32 + # PREFIX ?= arm-none-eabi PREFIX ?= arm-elf CC = $(PREFIX)-gcc @@ -25,7 +27,6 @@ AR = $(PREFIX)-ar CFLAGS = -Os -g -Wall -Wextra -I../include -fno-common \ -mcpu=cortex-m3 -mthumb ARFLAGS = rcsv -LIBNAME = libopenstm32 OBJS = gpio.o all: $(LIBNAME).a -- cgit v1.2.3