work in progress

## General Flags
PROJECT = xxx
MCU = atmega640
TARGET = $(PROJECT).elf
CC = avr-gcc
AVRDUDE = avrdude -P usb -c avrispmkII -p$(MCU)
 
## Options common to compile, link and assembly rules
COMMON = -g -mmcu=$(MCU)
 
## Compile options common for all C compilation units.
CFLAGS = $(COMMON)
CFLAGS += -Wall -DF_CPU=16000000UL -Os -fsigned-char
 
## Assembly specific flags
ASMFLAGS = $(COMMON)
ASMFLAGS += -x assembler-with-cpp -Wa,
 
## Linker flags
LDFLAGS = $(COMMON)
LDFLAGS +=  -Wl,-Map=$(PROJECT).map
 
## Intel Hex file production flags
HEX_FLASH_FLAGS = -R .eeprom
 
## Include Directories
INCLUDES = -I"." -I"../usbdrv" -I"../." 
 
## Objects that must be built in order to link
OBJECTS = usbdrv.o usbdrvasm.o oddebug.o main.o
 
## Objects explicitly added by the user
LINKONLYOBJECTS = 
 
## Build
all: $(TARGET) $(PROJECT).hex $(PROJECT).lss
 
$(OBJECTS): usbconfig.h Makefile
 
## Compile
usbdrv.o: ../usbdrv/usbdrv.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<
 
usbdrvasm.o: ../usbdrv/usbdrvasm.S
	$(CC) $(INCLUDES) $(ASMFLAGS) -c  $<
 
oddebug.o: ../usbdrv/oddebug.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<
 
main.o: main.c
	$(CC) $(INCLUDES) $(CFLAGS) -c  $<
 
##Link
$(TARGET): $(OBJECTS)
	 $(CC) $(LDFLAGS) $(OBJECTS) $(LINKONLYOBJECTS) $(LIBDIRS) $(LIBS) -o $(TARGET)
 
%.hex: $(TARGET)
	avr-objcopy -O ihex $(HEX_FLASH_FLAGS)  $< $@
 
%.lss: $(TARGET)
	avr-objdump -h -S $< > $@
 
 
## Clean target
.PHONY: clean
clean:
	-rm -rf $(OBJECTS) $(PROJECT).* *~
 
.PHONY: flash
flash:	all
	$(AVRDUDE) -U flash:w:$(PROJECT).hex

#define F_CPU			16000000UL
/* ---------------------------- Hardware Config ---------------------------- */
 
#define USB_CFG_IOPORTNAME      D
/* This is the port where the USB bus is connected. When you configure it to
 * "B", the registers PORTB, PINB and DDRB will be used.
 */
#define USB_CFG_DMINUS_BIT      1
/* This is the bit number in USB_CFG_IOPORT where the USB D- line is connected.
 * This may be any bit in the port.
 */
#define USB_CFG_DPLUS_BIT       0
/* This is the bit number in USB_CFG_IOPORT where the USB D+ line is connected.
 * This may be any bit in the port. Please note that D+ must also be connected
 * to interrupt pin INT0!
 */
 
/* ----------------------- Optional Hardware Config ------------------------ */
 
#define USB_CFG_PULLUP_IOPORTNAME   D
/* If you connect the 1.5k pullup resistor from D- to a port pin instead of
 * V+, you can connect and disconnect the device from firmware by calling
 * the macros usbDeviceConnect() and usbDeviceDisconnect() (see usbdrv.h).
 * This constant defines the port on which the pullup resistor is connected.
 */
#define USB_CFG_PULLUP_BIT          4
/* This constant defines the bit number in USB_CFG_PULLUP_IOPORT (defined
 * above) where the 1.5k pullup resistor is connected. See description
 * above for details.
 */
/* #define  USB_BUFFER_SECTION         ".bss" */
/* The USB receive buffer (variable "usbRxBuf") with a length of 22 bytes
 * MUST NOT cross a 256 byte boundary. We have introduced this configuration
 * option to allow you to change the data segment where this buffer is
 * allocated. If you have problems with the default segment (start of .bss),
 * you may change this setting. See the comment in usbdrv.h for details.
 * On IAR C, the default is the TINY_Z segment (first 256 bytes). You must
 * change this default for devices which don't have RAM below 0x100.
 */