Fix possible conflicts xith portD

.gitignore

@@ -0,0 +1,3 @@
+*.o
+*.map
+firmware/*.bin

bin/firmware/Makefile

@@ -1,11 +1,85 @@
-MCU_TARGET     = atmega8
-FLASHER        = avrdude -c usbasp -p $(MCU_TARGET)
+ifndef TARGET
+	TARGET=atmega8
+endif
+
+ifeq ($(TARGET),atmega8)
+    HFUSE=0xc9
+    LFUSE=0xef
+    FILE=usbasp.atmega8.2017-02-27.hex
+endif
+ifeq ($(TARGET),atmega48)
+    HFUSE=0xdd
+    LFUSE=0xff
+    FILE=usbasp.atmega48.2017-02-27.hex
+endif
+ifeq ($(TARGET),atmega88)
+    HFUSE=0xdd
+    LFUSE=0xff
+    FILE=usbasp.atmega88.2017-02-27.hex
+endif
+
+
+ifndef ISP
+	ISP=usbasp
+endif
+
+ifeq ($(ISP),bsd)
+    _PORT=/dev/parport0
+endif
+ifeq ($(ISP),ponyser)
+    _PORT=/dev/ttyS1
+endif
+ifeq ($(ISP),stk500)
+    _PORT=/dev/ttyS1
+endif
+ifeq ($(ISP),usbasp)
+    _PORT=/dev/usb/ttyUSB0
+endif
+ifeq ($(ISP),stk500v2)
+    _PORT=/dev/ttyUSB0
+endif
+ifeq ($(ISP),avrisp)
+    _PORT=/dev/ttyUSB0
+    _BITRATE=-b 19200
+endif
+
+ifndef PORT
+	PORT=$(_PORT)
+endif
+
+ifndef BITRATE
+	BITRATE=$(_BITRATE)
+endif
+
+
+FLASHER        = avrdude -c $(ISP) -p $(TARGET) -P $(PORT) $(BITRATE)
+
+help:
+	@echo "[TARGET=xxx] [ISP=yyy] [PORT=/dev/tttt] make usbasp"
+	@echo "             [ISP=yyy] [PORT=/dev/tttt] make shell"
+	@echo "Current values:"
+	@echo "       TARGET=${TARGET}"
+	@echo "       LFUSE=${LFUSE}"
+	@echo "       HFUSE=${HFUSE}"
+	@echo "       ISP=${ISP}"
+	@echo "       PORT=${PORT}"
+	@echo "Possible values for ISP:"
+	@echo "       bsd"
+	@echo "       ponyser"
+	@echo "       stk500"
+	@echo "       usbasp"
+	@echo "       stk500v2"
+	@echo "       avrisp (through arduino see https://www.arduino.cc/en/Tutorial/ArduinoISP)"
+	@echo "Possible values for TARGET:"
+	@echo "       atmega8"
+	@echo "       atmega48"
+	@echo "       atmega88"
 
 usbasp: fuses
-	$(FLASHER) -B 1 -U flash:w:usbasp.atmega8.2011-05-28.hex
+	$(FLASHER) -B 1 -U flash:w:$(FILE)
 
 fuses:
-	$(FLASHER) -B 200 -U hfuse:w:0xC9:m -U lfuse:w:0xEF:m
+	$(FLASHER) -B 200 -U hfuse:w:$(HFUSE):m -U lfuse:w:$(LFUSE):m
 shell:
 	$(FLASHER) -t