CFLAGS=-O2 -mlittle-endian -mthumb
CFLAGS+=-mcpu=cortex-m3 -ffreestanding -nostdlib -nostdinc
+# to run from SRAM
+CFLAGS+=-Wl,-Ttext,0x20000000 -Wl,-e,0x20000000
+
+# to write to flash then run
+# CFLAGS+=-Wl,-Ttext,0x08000000 -Wl,-e,0x08000000
+
all: $(BIN_IMAGE)
$(BIN_IMAGE): $(EXECUTABLE)