Standalone build without the Arduino IDE

.gitignore

-# Compiled Object files
-*.slo
-*.lo
+*.elf
+*.hex
 *.o
-
-# Compiled Dynamic libraries
-*.so
-*.dylib
-
-# Compiled Static libraries
-*.lai
-*.la
 *.a
+*.d
+

Makefile

+# The name of your project (used to name the compiled .hex file)
+TARGET = fadecandy
+
+# configurable options
+OPTIONS = -DF_CPU=48000000 -DUSB_SERIAL -DLAYOUT_US_ENGLISH
+
+# options needed by many Arduino libraries to configure for Teensy 3.0
+OPTIONS += -D__MK20DX128__ -DARDUIO=104 -DARDUINO
+
+# Sources
+C_FILES = $(wildcard src/*.c) $(wildcard teensy3/*.c)
+CPP_FILES = $(wildcard src/*.cpp) $(wildcard teensy3/*.cpp)
+
+# Headers
+INCLUDES = -Isrc -Iteensy3
+
+# CPPFLAGS = compiler options for C and C++
+CPPFLAGS = -Wall -g -Os -mcpu=cortex-m4 -mthumb -nostdlib -MMD $(OPTIONS) $(INCLUDES)
+
+# compiler options for C++ only
+CXXFLAGS = -std=gnu++0x -felide-constructors -fno-exceptions -fno-rtti
+
+# compiler options for C only
+CFLAGS =
+
+# linker script
+LDSCRIPT = teensy3/mk20dx128.ld
+
+# linker options
+LDFLAGS = -Os -Wl,--gc-sections -mcpu=cortex-m4 -mthumb -T$(LDSCRIPT)
+
+# additional libraries to link
+LIBS = -lm
+
+# toolchain
+CC = arm-none-eabi-gcc
+CXX = arm-none-eabi-g++
+OBJCOPY = arm-none-eabi-objcopy
+SIZE = arm-none-eabi-size
+
+OBJS := $(C_FILES:.c=.o) $(CPP_FILES:.cpp=.o)
+
+all: $(TARGET).hex
+
+$(TARGET).elf: $(OBJS) $(LDSCRIPT)
+	$(CC) $(LDFLAGS) -o $@ $(OBJS)
+
+%.hex: %.elf
+	$(SIZE) $<
+	$(OBJCOPY) -O ihex -R .eeprom $< $@
+
+# compiler generated dependency info
+-include $(OBJS:.o=.d)
+
+clean:
+	rm -f src/*.d src/*.o teensy3/*.o teensy3/*.d $(TARGET).elf $(TARGET).hex
+
+.PHONY: clean install

fc_firmware/fc_firmware.ino → src/main.cpp

@@ -21,13 +21,13 @@ void setup()
     leds.begin();
 
     for (unsigned i = 0; i < ledsTotal; ++i) {
-        pixbuf.pixels[i].color = HColor16(0x1080, 0x0080, 0x0080);
+        pixbuf.pixels[i].color = HColor16(0x0080, 0x0080, 0x0080);
     }
 }
 
 void loop()
 {
-    pixbuf.pixels[0].color.r = millis() & 0xffff;
+    pixbuf.pixels[0].color.b = millis() & 0xffff;
 
     pixbuf.show(leds);
 }