Add a 'fancyblink' example, currently mostly a copy of miniblink.

examples/Makefile

@@ -25,15 +25,21 @@ ifneq ($(V),1)
 Q := @
 endif
 
-all: miniblink
+all: miniblink fancyblink
 
 miniblink:
 	@printf "  BUILD   miniblink\n"
 	$(Q)$(MAKE) -C miniblink
 
+fancyblink:
+	@printf "  BUILD   fancyblink\n"
+	$(Q)$(MAKE) -C fancyblink
+
 clean:
 	@printf "  CLEAN   miniblink\n"
 	$(Q)$(MAKE) -C miniblink clean
+	@printf "  CLEAN   fancyblink\n"
+	$(Q)$(MAKE) -C fancyblink clean
 
-.PHONY: miniblink clean
+.PHONY: miniblink fancyblink clean
 

examples/fancyblink/Makefile

@@ -0,0 +1,85 @@
+##
+## This file is part of the libopenstm32 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/>.
+##
+
+BINARY		= fancyblink
+
+# PREFIX	?= arm-none-eabi
+PREFIX		?= arm-elf
+CC		= $(PREFIX)-gcc
+LD		= $(PREFIX)-ld
+OBJCOPY		= $(PREFIX)-objcopy
+OBJDUMP		= $(PREFIX)-objdump
+CFLAGS		= -O0 -g -Wall -Wextra -I../../include -fno-common \
+		  -mcpu=cortex-m3 -mthumb
+LDFLAGS		= -L../../lib -T$(BINARY).ld -nostartfiles
+OBJS		= $(BINARY).o
+OPENOCD		= openocd
+
+# Be silent per default, but 'make V=1' will show all compiler calls.
+ifneq ($(V),1)
+Q := @
+NULL := 2>/dev/null
+endif
+
+all: images
+
+images: $(BINARY)
+	@printf "  OBJCOPY $(BINARY).bin\n"
+	$(Q)$(OBJCOPY) -Obinary $(BINARY) $(BINARY).bin
+	@printf "  OBJCOPY $(BINARY).hex\n"
+	$(Q)$(OBJCOPY) -Oihex $(BINARY) $(BINARY).hex
+	@printf "  OBJCOPY $(BINARY).srec\n"
+	$(Q)$(OBJCOPY) -Osrec $(BINARY) $(BINARY).srec
+	@printf "  OBJDUMP $(BINARY).list\n"
+	$(Q)$(OBJDUMP) -S $(BINARY) > $(BINARY).list
+
+$(BINARY): $(OBJS) $(BINARY).ld
+	@printf "  LD      $(subst $(shell pwd)/,,$(@))\n"
+	$(Q)$(LD) $(LDFLAGS) -o $(BINARY) $(OBJS) -lopenstm32
+
+%.o: %.c Makefile
+	@printf "  CC      $(subst $(shell pwd)/,,$(@))\n"
+	$(Q)$(CC) $(CFLAGS) -o $@ -c $<
+
+clean:
+	@printf "  CLEAN   $(subst $(shell pwd)/,,$(OBJS))\n"
+	$(Q)rm -f *.o
+	@printf "  CLEAN   $(BINARY)\n"
+	$(Q)rm -f $(BINARY)
+	@printf "  CLEAN   $(BINARY).bin\n"
+	$(Q)rm -f $(BINARY).bin
+	@printf "  CLEAN   $(BINARY).hex\n"
+	$(Q)rm -f $(BINARY).hex
+	@printf "  CLEAN   $(BINARY).srec\n"
+	$(Q)rm -f $(BINARY).srec
+	@printf "  CLEAN   $(BINARY).list\n"
+	$(Q)rm -f $(BINARY).list
+
+flash: images
+	@printf "  FLASH   $(BINARY).bin\n"
+	@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
+	$(Q)$(OPENOCD) -f interface/jtagkey-tiny.cfg \
+		       -f board/olimex_stm32_h103.cfg \
+		       -c "init" -c "reset halt" \
+		       -c "flash write_image erase $(BINARY).bin 0x08000000" \
+		       -c "reset" \
+		       -c "shutdown" $(NULL)
+
+.PHONY: images clean
+

examples/fancyblink/README

@@ -0,0 +1,48 @@
+------------------------------------------------------------------------------
+README
+------------------------------------------------------------------------------
+
+This is the smallest-possible example program using libopenstm32.
+
+It's intended for the ST STM32-based Olimex STM32-H103 eval board (see
+http://olimex.com/dev/stm32-h103.html for details). It should blink
+the LED on the board.
+
+
+Building
+--------
+
+ $ make
+
+Running 'make' on the top-level libopenstm32 directory will automatically
+also build this example. Or you can build the library "manually" and
+then run 'make' in this directory.
+
+You may want to override the toolchain (e.g., arm-elf or arm-none-eabi):
+
+ $ PREFIX=arm-none-eabi make
+
+For a more verbose build you can use
+
+ $ make V=1
+
+
+Flashing
+--------
+
+You can flash the generated code on the STM32-H103 board using OpenOCD:
+
+ $ make flash
+
+Or you can do the same manually via:
+
+ $ openocd -f interface/jtagkey-tiny.cfg -f board/olimex_stm32_h103.cfg
+ $ telnet localhost 4444
+ > init
+ > reset halt
+ > flash write_image erase fancyblink.bin 0x08000000
+ > resume 0x08000000
+
+Replace the "jtagkey-tiny.cfg" with whatever JTAG device you are using, and/or
+replace "olimex_stm32_h103.cfg" with your respective board config file.
+

examples/fancyblink/fancyblink.c

@@ -0,0 +1,45 @@
+/*
+ * This file is part of the libopenstm32 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/>.
+ */
+
+#include <libopenstm32.h>
+
+int main(void)
+{
+	int i;
+
+	/* Enable GPIOC clock. */
+	rcc_enable_peripheral_clock(&RCC_APB2ENR, IOPCEN);
+
+	/* Set GPIO12 (in GPIO port C) to 'output push-pull'. */
+	gpio_set_mode(GPIOC, GPIO_MODE_OUTPUT_2_MHZ,
+		      GPIO_CNF_OUTPUT_PUSHPULL, GPIO12);
+
+	/* Blink the LED (PC12) on the board. */
+	while (1) {
+		gpio_toggle(GPIOC, GPIO12);	/* LED on/off */
+		for (i = 0; i < 80000; i++);	/* Wait (needs -O0 CFLAGS). */
+	}
+
+	return 0;
+}
+
+u32 *vector_table[2] __attribute__ ((section(".vectors"))) = {
+	(u32 *)0x20000800,	/* Use 2 KB stack (0x800 bytes). */
+	(u32 *)main,		/* Use main() as reset vector for now. */
+};

examples/fancyblink/fancyblink.ld

@@ -0,0 +1,49 @@
+/*
+ * This file is part of the libopenstm32 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/>.
+ */
+
+/* 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 : {
+		*(.vectors)	/* Vector table */
+		*(.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
+}