Subversion Repositories group.electronics

# Name: Makefile

# Project: EasyLogger

# Author: Christian Starkjohann

# Creation Date: 2007-06-23

# Tabsize: 4

# Copyright: (c) 2007 by OBJECTIVE DEVELOPMENT Software GmbH

# License: GPLv2.

# This Revision: $Id$

DEVICE=atmega168

AVRDUDE = avrdude -c avrispmkii -P usb -p $(DEVICE)

# The two lines above are for "avrdude" and the STK500 programmer connected

# to an USB to serial converter to a Mac running Mac OS X.

# Choose your favorite programmer and interface.

COMPILE = avr-gcc -Wall -Os -Iusbdrv -I. -mmcu=$(DEVICE) -DF_CPU=12000000 -DDEBUG_LEVEL=0

# NEVER compile the final product with debugging! Any debug output will

# distort timing so that the specs can't be met.

#OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o usbdrv/oddebug.o main.o

OBJECTS = usbdrv/usbdrv.o usbdrv/usbdrvasm.o  main.o

# symbolic targets:

all:	main.hex

.c.o:

	$(COMPILE) -c $< -o $@

.S.o:

	$(COMPILE) -x assembler-with-cpp -c $< -o $@

# "-x assembler-with-cpp" should not be necessary since this is the default

# file type for the .S (with capital S) extension. However, upper case

# characters are not always preserved on Windows. To ensure WinAVR

# compatibility define the file type manually.

.c.s:

	$(COMPILE) -S $< -o $@

flash:	all

	$(AVRDUDE) -U flash:w:main.hex:i

# Fuse high byte:

# 0xdd = 1 1 0 1   1 1 0 1

#        ^ ^ ^ ^   ^ \-+-/ 

#        | | | |   |   +------ BODLEVEL 2..0 (brownout trigger level -> 2.7V)

#        | | | |   +---------- EESAVE (preserve EEPROM on Chip Erase -> not preserved)

#        | | | +-------------- WDTON (watchdog timer always on -> disable)

#        | | +---------------- SPIEN (enable serial programming -> enabled)

#        | +------------------ DWEN (debug wire enable)

#        +-------------------- RSTDISBL (disable external reset -> enabled)

#

# Fuse low byte:

# 0xe1 = 1 1 1 0   0 0 0 1

#        ^ ^ \+/   \--+--/

#        | |  |       +------- CKSEL 3..0 (clock selection -> HF PLL)

#        | |  +--------------- SUT 1..0 (BOD enabled, fast rising power)

#        | +------------------ CKOUT (clock output on CKOUT pin -> disabled)

#        +-------------------- CKDIV8 (divide clock by 8 -> don't divide)

fuse:

	$(AVRDUDE) -U hfuse:w:0xdd:m -U lfuse:w:0xe1:m

fusedef:

	$(AVRDUDE) -U hfuse:w:0xdf:m -Ulfuse:w:0x64:m

readcal:

	$(AVRDUDE) -U calibration:r:/dev/stdout:i | head -1

clean:

	rm -f main.hex main.lst main.obj main.cof main.list main.map main.eep.hex main.bin *.o usbdrv/*.o main.s usbdrv/oddebug.s usbdrv/usbdrv.s

# file targets:

main.bin:	$(OBJECTS)

	$(COMPILE) -o main.bin $(OBJECTS)

main.hex:	main.bin

	rm -f main.hex main.eep.hex

	avr-objcopy -j .text -j .data -O ihex main.bin main.hex

	./checksize main.bin 4096 256

# do the checksize script as our last action to allow successful compilation

# on Windows with WinAVR where the Unix commands will fail.

disasm:	main.bin

	avr-objdump -d main.bin

cpp:

	$(COMPILE) -E main.c