aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--Makefile8
-rw-r--r--examples/lm3s/Makefile38
-rw-r--r--examples/lm3s/Makefile.include121
-rw-r--r--examples/lm3s/lm3s3748-evb/Makefile38
-rw-r--r--examples/lm3s/lm3s3748-evb/miniblink/Makefile23
-rw-r--r--examples/lm3s/lm3s3748-evb/miniblink/README9
-rw-r--r--examples/lm3s/lm3s3748-evb/miniblink/miniblink.c52
-rw-r--r--examples/lm3s/lm3s3748-evb/miniblink/miniblink.ld31
-rw-r--r--lib/lm3s/Makefile57
-rw-r--r--lib/lm3s/gpio.c32
-rw-r--r--lib/lm3s/libopencm3_lm3s.ld63
-rw-r--r--lib/lm3s/vector.c96
12 files changed, 567 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 9b7fc55..718ecd4 100644
--- a/Makefile
+++ b/Makefile
@@ -40,14 +40,18 @@ lib:
$(Q)$(MAKE) -C lib/stm32 all
@printf " BUILD lib/lpc13xx\n"
$(Q)$(MAKE) -C lib/lpc13xx all
+ @printf " BUILD lib/lm3s\n"
+ $(Q)$(MAKE) -C lib/lm3s all
examples: lib
@printf " BUILD examples/stm32\n"
$(Q)$(MAKE) -C examples/stm32 all
@printf " BUILD examples/lpc13xx\n"
$(Q)$(MAKE) -C examples/lpc13xx all
+ @printf " BUILD examples/lm3s\n"
+ $(Q)$(MAKE) -C examples/lm3s all
-install: build
+install: lib
@printf " INSTALL headers\n"
$(Q)$(INSTALL) -d $(INCDIR)/libopencm3
$(Q)$(INSTALL) -d $(LIBDIR)
@@ -62,6 +66,8 @@ clean:
$(Q)$(MAKE) -C lib/stm32 clean
$(Q)$(MAKE) -C examples/lpc13xx clean
$(Q)$(MAKE) -C lib/lpc13xx clean
+ $(Q)$(MAKE) -C examples/lm3s clean
+ $(Q)$(MAKE) -C lib/lm3s clean
.PHONY: build lib examples install clean
diff --git a/examples/lm3s/Makefile b/examples/lm3s/Makefile
new file mode 100644
index 0000000..4f1704b
--- /dev/null
+++ b/examples/lm3s/Makefile
@@ -0,0 +1,38 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
+##
+## 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/>.
+##
+
+# 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
+
+all: lm3s3748-evb
+
+lm3s3748-evb:
+ @printf " BUILD examples/lm3s/lm3s3748-evb\n"
+ $(Q)$(MAKE) -C lm3s3748-evb
+
+clean:
+ @printf " CLEAN examples/lm3s/lm3s3748-evb\n"
+ $(Q)$(MAKE) -C lm3s3748-evb clean
+
+.PHONY: lm3s3748-evb clean
+
diff --git a/examples/lm3s/Makefile.include b/examples/lm3s/Makefile.include
new file mode 100644
index 0000000..3420d1a
--- /dev/null
+++ b/examples/lm3s/Makefile.include
@@ -0,0 +1,121 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
+##
+## 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/>.
+##
+
+# PREFIX ?= arm-none-eabi
+PREFIX ?= arm-elf
+CC = $(PREFIX)-gcc
+LD = $(PREFIX)-gcc
+OBJCOPY = $(PREFIX)-objcopy
+OBJDUMP = $(PREFIX)-objdump
+# Uncomment this line if you want to use the installed (not local) library.
+# TOOLCHAIN_DIR = `dirname \`which $(CC)\``/../$(PREFIX)
+TOOLCHAIN_DIR = ../../../..
+CFLAGS += -O0 -g3 -Wall -Wextra -I$(TOOLCHAIN_DIR)/include -fno-common \
+ -mcpu=cortex-m3 -mthumb
+LDSCRIPT = $(BINARY).ld
+LDFLAGS += -L$(TOOLCHAIN_DIR)/lib -L$(TOOLCHAIN_DIR)/lib/lm3s \
+ -T$(LDSCRIPT) -nostartfiles -Wl,--gc-sections
+OBJS += $(BINARY).o
+
+OOCD ?= openocd
+OOCD_INTERFACE ?= flossjtag
+OOCD_BOARD ?= olimex_stm32_h103
+# FIXME
+
+# Be silent per default, but 'make V=1' will show all compiler calls.
+ifneq ($(V),1)
+Q := @
+NULL := 2>/dev/null
+else
+LDFLAGS += -Wl,--print-gc-sections
+endif
+
+.SUFFIXES: .elf .bin .hex .srec .list .images
+.SECONDEXPANSION:
+.SECONDARY:
+
+all: images
+
+images: $(BINARY).images
+flash: $(BINARY).flash
+
+%.images: %.bin %.hex %.srec %.list
+ @#echo "*** $* images generated ***"
+
+%.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: $(OBJS) $(LDSCRIPT)
+ @#printf " LD $(subst $(shell pwd)/,,$(@))\n"
+ $(Q)$(LD) $(LDFLAGS) -o $(*).elf $(OBJS) -lopencm3_lm3s
+
+%.o: %.c Makefile
+ @#printf " CC $(subst $(shell pwd)/,,$(@))\n"
+ $(Q)$(CC) $(CFLAGS) -o $@ -c $<
+
+clean:
+ $(Q)rm -f *.o
+ $(Q)rm -f *.elf
+ $(Q)rm -f *.bin
+ $(Q)rm -f *.hex
+ $(Q)rm -f *.srec
+ $(Q)rm -f *.list
+
+# FIXME: Replace STM32 stuff with proper LPC13XX OpenOCD support later.
+ifeq ($(OOCD_SERIAL),)
+%.flash: %.hex
+ @printf " FLASH $<\n"
+ @# IMPORTANT: Don't use "resume", only "reset" will work correctly!
+ $(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
+ -f board/$(OOCD_BOARD).cfg \
+ -c "init" -c "reset init" \
+ -c "stm32x mass_erase 0" \
+ -c "flash write_image $(*).hex" \
+ -c "reset" \
+ -c "shutdown" $(NULL)
+else
+%.flash: %.hex
+ @printf " FLASH $<\n"
+ @# IMPORTANT: Don't use "resume", only "reset" will work correctly!
+ $(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
+ -f board/$(OOCD_BOARD).cfg \
+ -c "ft2232_serial $(OOCD_SERIAL)" \
+ -c "init" -c "reset init" \
+ -c "stm32x mass_erase 0" \
+ -c "flash write_image $(*).hex" \
+ -c "reset" \
+ -c "shutdown" $(NULL)
+endif
+
+.PHONY: images clean
+
diff --git a/examples/lm3s/lm3s3748-evb/Makefile b/examples/lm3s/lm3s3748-evb/Makefile
new file mode 100644
index 0000000..5750afd
--- /dev/null
+++ b/examples/lm3s/lm3s3748-evb/Makefile
@@ -0,0 +1,38 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+##
+## This program is free software: you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program. If not, see <http://www.gnu.org/licenses/>.
+##
+
+# Be silent per default, but 'make V=1' will show all compiler calls.
+ifneq ($(V),1)
+Q := @
+# Do not print "Entering directory ...".
+MAKEFLAGS += --no-print-directory
+endif
+
+all: miniblink
+
+miniblink:
+ @printf " BUILD examples/lm3s/lm3s3748-evb/miniblink\n"
+ $(Q)$(MAKE) -C miniblink
+
+clean:
+ @printf " CLEAN examples/lm3s/lm3s3748-evb/miniblink\n"
+ $(Q)$(MAKE) -C miniblink clean
+
+.PHONY: miniblink clean
+
diff --git a/examples/lm3s/lm3s3748-evb/miniblink/Makefile b/examples/lm3s/lm3s3748-evb/miniblink/Makefile
new file mode 100644
index 0000000..110e69e
--- /dev/null
+++ b/examples/lm3s/lm3s3748-evb/miniblink/Makefile
@@ -0,0 +1,23 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2010 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 = miniblink
+
+include ../../Makefile.include
+
diff --git a/examples/lm3s/lm3s3748-evb/miniblink/README b/examples/lm3s/lm3s3748-evb/miniblink/README
new file mode 100644
index 0000000..79f3941
--- /dev/null
+++ b/examples/lm3s/lm3s3748-evb/miniblink/README
@@ -0,0 +1,9 @@
+------------------------------------------------------------------------------
+README
+------------------------------------------------------------------------------
+
+This is the smallest-possible example program using libopencm3.
+
+It's intended for the LuminaryMicro LM3S3748-EVB.
+It should blink the STATUS LED on the board.
+
diff --git a/examples/lm3s/lm3s3748-evb/miniblink/miniblink.c b/examples/lm3s/lm3s3748-evb/miniblink/miniblink.c
new file mode 100644
index 0000000..d52dc20
--- /dev/null
+++ b/examples/lm3s/lm3s3748-evb/miniblink/miniblink.c
@@ -0,0 +1,52 @@
+/*
+ * 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/systemcontrol.h>
+#include <libopencm3/lm3s/gpio.h>
+
+void gpio_setup(void)
+{
+ SYSTEMCONTROL_RCGC2 |= 0x20; /* Enable GPIOF in run mode. */
+
+ GPIO_DIR(GPIOF) |= (1 << 0); /* Configure PF0 as output. */
+ GPIO_DEN(GPIOF) |= (1 << 0); /* Enable digital function on PF0 */
+}
+
+int main(void)
+{
+ int i;
+
+ gpio_setup();
+
+ /* Blink STATUS LED (PF0) on the board. */
+ while (1) {
+ gpio_set(GPIOF, GPIO0);
+
+ for (i = 0; i < 800000; i++) /* Wait a bit. */
+ __asm__("nop");
+
+ gpio_clear(GPIOF, GPIO0);
+
+ for (i = 0; i < 800000; i++) /* Wait a bit. */
+ __asm__("nop");
+ }
+
+ return 0;
+}
+
diff --git a/examples/lm3s/lm3s3748-evb/miniblink/miniblink.ld b/examples/lm3s/lm3s3748-evb/miniblink/miniblink.ld
new file mode 100644
index 0000000..114fc85
--- /dev/null
+++ b/examples/lm3s/lm3s3748-evb/miniblink/miniblink.ld
@@ -0,0 +1,31 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 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 LM3S3748-EVB */
+
+/* Define memory regions. */
+MEMORY
+{
+ rom (rx) : ORIGIN = 0x00000000, LENGTH = 128K
+ ram (rwx) : ORIGIN = 0x20000000, LENGTH = 64K
+}
+
+/* Include the common ld script. */
+INCLUDE libopencm3_lm3s.ld
+
diff --git a/lib/lm3s/Makefile b/lib/lm3s/Makefile
new file mode 100644
index 0000000..7197ec3
--- /dev/null
+++ b/lib/lm3s/Makefile
@@ -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
+
diff --git a/lib/lm3s/gpio.c b/lib/lm3s/gpio.c
new file mode 100644
index 0000000..34df295
--- /dev/null
+++ b/lib/lm3s/gpio.c
@@ -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;
+}
+
diff --git a/lib/lm3s/libopencm3_lm3s.ld b/lib/lm3s/libopencm3_lm3s.ld
new file mode 100644
index 0000000..5871138
--- /dev/null
+++ b/lib/lm3s/libopencm3_lm3s.ld
@@ -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);
+
diff --git a/lib/lm3s/vector.c b/lib/lm3s/vector.c
new file mode 100644
index 0000000..995ee78
--- /dev/null
+++ b/lib/lm3s/vector.c
@@ -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 */
+