Start bluepill skeleton and blinky project.

blue-pill/skeleton/Makefile

@@ -0,0 +1,52 @@
+# configurables
+OBJS :=		
+TARGET :=	
+
+# targets
+ELF :=		$(TARGET).elf
+BIN :=		$(TARGET).bin
+
+# toolchain setup
+ARMTC :=	arm-none-eabi
+ARMCC :=	$(ARMTC)-gcc
+CC :=		$(ARMCC)
+LD :=		$(ARMCC)
+ARMSIZE :=	$(ARMTC)-size
+OBJCOPY :=	$(ARMTC)-objcopy
+
+# compiler options
+CPUFLAGS :=	-mcpu=cortex-m3 -mthumb
+CFLAGS :=	-Wall -Wextra -Os -MD $(CPUFLAGS)
+LDFLAGS :=	$(CPUFLAGS) -nostartfiles -Wl,-T,bluepill.ld
+LDLIBS :=	-lc -lnosys
+
+# programmer options
+STARTMEM :=	0x8000000
+
+# targets
+
+.PHONY: all
+all: $(BIN)
+
+$(ELF): $(OBJS)
+	$(ARMCC) $(LDFLAGS) -o $@ $(OBJS) $(LDLIBS)
+	$(ARMSIZE) -A $@
+
+$(BIN): $(ELF)
+	$(OBJCOPY) -O binary $< $@
+
+.PHONY: flash
+flash: $(BIN)
+	st-flash write $(BIN) $(STARTMEM)
+
+.PHONY: erase
+erase:
+	st-flash erase
+
+.PHONY: install
+install: erase flash
+
+.PHONY: clean
+clean:
+	rm -f *.o *.bin *.elf *.d *.map
+

blue-pill/skeleton/bluepill.ld

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+# from https://github.com/satoshinm/pill_blink/
+
+MEMORY
+{
+    rom (rx) : ORIGIN = 0x08000000, LENGTH = 128K
+    ram (rwx) : ORIGIN = 0x20000000, LENGTH = 20K
+}
+
+EXTERN(vector_table);
+ENTRY(reset_handler);
+
+SECTIONS
+{
+    .text : {
+        *(.vectors)
+        *(.text*)
+        . = ALIGN(4);
+    } >rom
+}