Tooltron

    while(1) {

      PORTB |= _BV(PORTB1);

      _delay_ms(100);

      PORTB &= ~_BV(PORTB1);

      _delay_ms(100);

    }

/********

 * This file is part of Tooltron.

 *

 * Tooltron is free software: you can redistribute it and/or modify

 * it under the terms of the Lesser GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * Tooltron is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * Lesser GNU General Public License for more details.

 * You should have received a copy of the Lesser GNU General Public License

 * along with Tooltron.  If not, see <http://www.gnu.org/licenses/>.

 *

 * Copyright 2009 Kevin Woo <kwoo@2ndt.com>

 *

 ********/

/** @file uart.h

 *

 *	@brief Initializes UART functions using the UART hardware module

 *

 *	@author Kevin Woo (kwoo)

 */

#ifndef UART_H

#define UART_H

#include <avr/io.h>

#include <avr/interrupt.h>

#include <stdint.h>

/** **/

#define UART_TX_OFF 0

#define UART_TX_ON 1

/** @brief RX Pin for the UART **/

#define RX		_BV(PORTD0)

#define TX		_BV(PORTD1)

#define TX_EN	_BV(PORTD5)

/** @brief The most recently received byte **/

extern uint8_t received_byte;

/** @brief If the value in received_byte has been read or not **/

extern uint8_t byte_ready;

/** @brief Initializes the UART registers and sets it to the buad rate 

 *         which msut be the value that is defined in the datasheet 

 *         for any particular speed (ie: 51 -> 9600bps)

 **/

void init_uart(uint16_t baud);

/** @brief Gets latest byte and returns it in output_byte. If the byte 

 *         was already read, returns -1 otherwise it returns 0 

 **/

int8_t uart_get_byte(uint8_t *output_byte);

/** @brief Sends a character array of size size. If we are currently 

 *         transmitting it will block until the the current transmit 

 *         is done. 

 **/

void uart_send_byte(uint8_t data);

void uart_toggle_transmit(uint8_t state);

#endif

/*

    1-24-09

    Copyright Spark Fun Electronics? 2009

    Nathan Seidle

    Wireless bootloader for the ATmega168 and XBee Series 1 modules

	This is a small (728 byte) serial bootloader designed to be a robust solution for remote reset and wireless

	booloading. It's not extremely fast, but is very hardy.

	The remote unit (the AVR usually) broadcasts the non-visible character ASCII(6). It then waits for a response

	over the serial link for the non-visible character ASCII(5). If received, the remote unit enters bootloading mode.

	If the correct character 5 is not received, the remote unit jumps to the beginning of the regular program code.

	Bootloading includes checksum calculation, and timeouts. Timeouts is most important because a wireless

	link does not always deliver segments of the serial stream in a deterministic fashion - a good wireless unit

	will buffer all sorts of stuff, making the connection stream irregular in throughput.

	This bootloader accepts a pure binary stream (not an intel hex file format). All file parsing is done on the 

	base side (usually a beefy computer with lots of extra processing ability).

	Things I learned from testing:

	XBee series 2.5 units have their uses, but not here. I beat my head against the wall trying to form a sensible link and failed.

	Ultimately, plugging series 1 in, it worked wonderfully. If you need point-to-point, series 1 is wonderful. If you really

	need true mesh node networking, Series 2.5 is good.

	XBee Series 2.5 ships with CTS enabled! That's why the AT commands through hyperterminal were not working. Grr.

	To get a Series 2.5 link to work, you must configure device on XBee Explorer as Coordinator, and the device in your arduino board as the end device.

	Trying to use Series 2.5 for a good point-to-point link:

	With CTS Enabled, 19200bps, Packetization Timeout at 3 (default), still bit errors, even with 1ms delay between characters

	With CTS Enabled, 19200bps, Packetization Timeout at 0, with 1ms delay between characters helps a lot, but will get character errors if there is RF interferance (units further than a few feet apart)

	With CTS/RTS Enabled, 19200bps, Packet timeout at 0, no delay but with flow control, we have very solid link -> one way!

	while( (PIND & (1<<CTS)) != 0); //Don't send anything to the XBee, it is thinking

	You do not seem to need CTS/RTS/DTR to read or program an XBee.

	With XB24-ZB unit, the end device can transmit all it wants, the coordinator seems to die after a few seconds. This

	was the ultimate downfall of the series 2.5 for me. The link would work, but the coordinator would drop off after a few

	seconds? Series 1 did not do this.

	All of the following code works exceptionally well with Series 1 "XB24" "XBee 802.15.4" "v10CD" firmware

	To configure the XBees, follow "Lady Ada wireless arduino" info

	Series 1 module settings:

	Baud: 19200

	No flow control (CTS is left on as default)

	No change to packetization timeout (default = 3?)

	RTS on XBee board goes up and down with the com advanced trick NOT checked, and hardware control turned ON under terminal

	In VB, turn handshaking off. When RTSEnable = True, the RTS pin goes low, resetting the AVR

	Wireless:

	38 seconds to load 14500 code words (most of the space) at 38400 / 8MHz (internal osc)

	38 seconds to load 14500 code words (most of the space) at 19200 / 8MHz (internal osc)

	Wired:

	11 seconds to load 14500 code words (most of the space) at 19200 / 8MHz (internal osc)

	so you see, there is no benefit to a higher baud rate. The XBee protocol is the bottleneck

	How to read the flash contents to file : 

	avrdude -c stk200 -p m168 -P lpt1 -Uflash:r:bl.hex:i

	This will dump the current flash contents of an AVR to a read-able hex file called "bl.hex". This

	was very helpful when testing whether flash writing was actually working.

	Oh, and if you happen to be using an XBee with a UFL antenna connector (and don't have a UFL antenna sitting around)

	you can convert it to a wire antenna simply by soldering in a short wire into the XBee. It may not be the best, 

	but it works.

*/

#include <avr/io.h>

#include <util/delay.h>

#include <avr/boot.h>

#include "uart.h"

#define TRUE	0

#define FALSE	1

#define MAX_WAIT_IN_CYCLES 800000

//Status LED

#define LED_DDR  DDRB

#define LED_PORT PORTB

#define LED      PORTB1

//Function prototypes

void flash_led(uint8_t);

void onboard_program_write(uint32_t page, uint8_t *buf);

void (*main_start)(void) = 0x0000;

//Variables

uint8_t incoming_page_data[256];

uint8_t page_length;

uint8_t retransmit_flag = FALSE;

union page_address_union {

  uint16_t word;

  uint8_t  byte[2];

} page_address;

char getch(void);

int main(void)

{

  uint8_t check_sum = 0;

  uint16_t i;

  //  init_uart(51); //MAGIC NUMBER??

  //set LED pin as output

  //  LED_DDR |= _BV(LED);

    DDRB = 0x00;

    DDRB = _BV(DDB0) | _BV(DDB1) | _BV(DDB2) | _BV(DDB5);

    DDRD = _BV(DDB4);

    PORTB = 0x00;

    // Clear timmer on OCRA1 Compare match

    // No prescale

    TCCR1B |= _BV(WGM12) | _BV(CS12);

    // 1 second @ 8MHz clock

    OCR1AH =0x7A;

    OCR1AL =0x12;

    TIMSK = _BV(OCIE1A);

  //flash onboard LED to signal entering of bootloader

    while(1) {

      PORTB |= _BV(LED);

      _delay_ms(100);

      PORTB &= ~_BV(LED);

      _delay_ms(100);

    }

  flash_led(1);

  //Start bootloading process

  uart_send_byte(5); //Tell the world we can be bootloaded

  //Check to see if the computer responded

  uint32_t count = 0;

  uint8_t resp;

  while(uart_get_byte(&resp) == -1) {

    count++;

    if (count > MAX_WAIT_IN_CYCLES)

      //TODO: flash some leds or something

      main_start();

  }

  /* If the computer did not respond correctly with a ACK, we jump to

   * user's program

   */

  if(resp != 6)

    main_start(); 

  while(1) {

    //Determine if the last received data was good or bad

    if (check_sum != 0) //If the check sum does not compute, tell computer to resend same line

    RESTART:

      uart_send_byte(7); //Ascii character BELL

    else            

      uart_send_byte('T'); //Tell the computer that we are ready for the next line

    while(1) {//Wait for the computer to initiate transfer

      if (getch() == ':') break; //This is the "gimme the next chunk" command

      if (retransmit_flag == TRUE) goto RESTART;

    }

    page_length = getch(); //Get the length of this block

    if (retransmit_flag == TRUE) goto RESTART;

    if (page_length == 'S') {//Check to see if we are done - this is the "all done" command

      //boot_rww_enable (); //Wait for any flash writes to complete?

      main_start(); 

    }

    //Get the memory address at which to store this block of data

    page_address.byte[0] = getch(); if (retransmit_flag == TRUE) goto RESTART;

    page_address.byte[1] = getch(); if (retransmit_flag == TRUE) goto RESTART;

    check_sum = getch(); //Pick up the check sum for error dectection

    if (retransmit_flag == TRUE) goto RESTART;

    for(i = 0 ; i < page_length ; i++) {//Read the program data

      incoming_page_data[i] = getch();

      if (retransmit_flag == TRUE) goto RESTART;

    }

    //Calculate the checksum

    for(i = 0 ; i < page_length ; i++)

      check_sum = check_sum + incoming_page_data[i];

    check_sum = check_sum + page_length;

    check_sum = check_sum + page_address.byte[0];

    check_sum = check_sum + page_address.byte[1];

    if(check_sum == 0) //If we have a good transmission, put it in ink

      onboard_program_write((uint32_t)page_address.word, incoming_page_data);

  }

}

//#define SPM_PAGESIZE 128

void onboard_program_write(uint32_t page, uint8_t *buf)

{

  uint16_t i;

	//uint8_t sreg;

	// Disable interrupts.

	//sreg = SREG;

	//cli();

	//eeprom_busy_wait ();

  boot_page_erase (page);

  boot_spm_busy_wait ();      // Wait until the memory is erased.

  for (i=0; i<SPM_PAGESIZE; i+=2){

    // Set up little-endian word.

    uint16_t w = *buf++;

    w += (*buf++) << 8;

    boot_page_fill (page + i, w);

  }

  boot_page_write (page);     // Store buffer in flash page.

  boot_spm_busy_wait();       // Wait until the memory is written.

	// Reenable RWW-section again. We need this if we want to jump back

	// to the application after bootloading.

	//boot_rww_enable ();

	// Re-enable interrupts (if they were ever enabled).

	//SREG = sreg;

}

char getch(void) {

  retransmit_flag = FALSE;

  uint32_t count = 0;

  uint8_t resp;

  while(uart_get_byte(&resp)==-1) {

    count++;

    if (count > MAX_WAIT_IN_CYCLES) {

      retransmit_flag = TRUE;

      break;

    }

  }

  return resp;

}

void flash_led(uint8_t count)

{

	uint8_t i;

	for (i = 0; i < count; ++i) {

		LED_PORT |= _BV(LED);

		_delay_ms(100);

		LED_PORT &= ~_BV(LED);

		_delay_ms(100);

	}

}

/********

 * This file is part of Tooltron.

 *

 * Tooltron is free software: you can redistribute it and/or modify

 * it under the terms of the Lesser GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * Tooltron is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * Lesser GNU General Public License for more details.

 * You should have received a copy of the Lesser GNU General Public License

 * along with Tooltron.  If not, see <http://www.gnu.org/licenses/>.

 *

 * Copyright 2009 Kevin Woo <kwoo@2ndt.com>

 *

 ********/

/** @file uart.c

 *	

 *	@brief Implements UART functionality in hardware

 *

 *	@author Kevin Woo (kwoo)

 */

#include "uart.h"

#include <util/delay.h>

#include <stdint.h>

uint8_t received_byte;     //Byte received

uint8_t byte_ready;        //New byte has been received

void init_uart(uint16_t baud) {

	// Set baud rate

	UBRRH = (uint8_t)(baud>>8);

	UBRRL = (uint8_t)baud;

	// Enable RX/TX and RX/TX Interrupt

	UCSRB = _BV(RXCIE) | _BV(RXEN) | _BV(TXCIE) | _BV(TXEN);

	// Enable the TXEN pin as output

	DDRD |= TX_EN;

    // Initialize receive variables

    byte_ready = 0;

    received_byte = 0x0;

}

int8_t uart_get_byte(uint8_t *output_byte) {

	if (byte_ready) {

		byte_ready = 0;

		*output_byte = received_byte;

		return 0;

	} else {

		return -1;

	}

}

void uart_send_byte(uint8_t data) {

	//Waits until current transmit is done

    while (!(UCSRA & _BV(UDRE)));

    // Enable writes and send

	uart_toggle_transmit(UART_TX_ON);

    UDR = data;

	return;

}

void uart_toggle_transmit(uint8_t state) {

	if (state == UART_TX_ON) {

		PORTD |= TX_EN;

	} else {

		PORTD &= ~TX_EN;

	}

}

ISR(USART_RX_vect) {

    received_byte = UDR;

    byte_ready = 1;    

}

ISR(USART_TX_vect) {

    // Re-enable reads

    uart_toggle_transmit(UART_TX_OFF);

}

# Hey Emacs, this is a -*- makefile -*-

#----------------------------------------------------------------------------

# WinAVR Makefile Template written by Eric B. Weddington, J?rg Wunsch, et al.

#

# Released to the Public Domain

#

# Additional material for this makefile was written by:

# Peter Fleury

# Tim Henigan

# Colin O'Flynn

# Reiner Patommel

# Markus Pfaff

# Sander Pool

# Frederik Rouleau

#

#----------------------------------------------------------------------------

# On command line:

#

# make all = Make software.

#

# make clean = Clean out built project files.

#

# make coff = Convert ELF to AVR COFF.

#

# make extcoff = Convert ELF to AVR Extended COFF.

#

# make program = Download the hex file to the device, using avrdude.

#                Please customize the avrdude settings below first!

#

# make debug = Start either simulavr or avarice as specified for debugging, 

#              with avr-gdb or avr-insight as the front end for debugging.

#

# make filename.s = Just compile filename.c into the assembler code only.

#

# make filename.i = Create a preprocessed source file for use in submitting

#                   bug reports to the GCC project.

#

# To rebuild project do "make clean" then "make all".

#----------------------------------------------------------------------------

# MCU name

MCU = attiny2313

# Processor frequency.

#     This will define a symbol, F_CPU, in all source code files equal to the 

#     processor frequency. You can then use this symbol in your source code to 

#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done

#     automatically to create a 32-bit value in your source code.

F_CPU = 8000000

# Output format. (can be srec, ihex, binary)

FORMAT = ihex

# Target file name (without extension).

TARGET = bootloader

# List C source files here. (C dependencies are automatically generated.)

SRC =  $(wildcard *.c)

# List Assembler source files here.

#     Make them always end in a capital .S.  Files ending in a lowercase .s

#     will not be considered source files but generated files (assembler

#     output from the compiler), and will be deleted upon "make clean"!

#     Even though the DOS/Win* filesystem matches both .s and .S the same,

#     it will preserve the spelling of the filenames, and gcc itself does

#     care about how the name is spelled on its command-line.

ASRC = 

# Optimization level, can be [0, 1, 2, 3, s]. 

#     0 = turn off optimization. s = optimize for size.

#     (Note: 3 is not always the best optimization level. See avr-libc FAQ.)

OPT = s

# Debugging format.

#     Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.

#     AVR Studio 4.10 requires dwarf-2.

#     AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.

DEBUG =

# List any extra directories to look for include files here.

#     Each directory must be seperated by a space.

#     Use forward slashes for directory separators.

#     For a directory that has spaces, enclose it in quotes.

#EXTRAINCDIRS = C:\WinAVR\include\fwr

# Compiler flag to set the C Standard level.

#     c89   = "ANSI" C

#     gnu89 = c89 plus GCC extensions

#     c99   = ISO C99 standard (not yet fully implemented)

#     gnu99 = c99 plus GCC extensions

CSTANDARD = -std=gnu99

# Place -D or -U options here

CDEFS = -DF_CPU=$(F_CPU)UL

# Place -I options here

CINCS =

#---------------- Compiler Options ----------------

#  -g*:          generate debugging information

#  -O*:          optimization level

#  -f...:        tuning, see GCC manual and avr-libc documentation

#  -Wall...:     warning level

#  -Wa,...:      tell GCC to pass this to the assembler.

#    -adhlns...: create assembler listing

#CFLAGS = -g$(DEBUG)

CFLAGS += $(CDEFS) $(CINCS)

CFLAGS += -O$(OPT)

CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums

CFLAGS += -Wall -Wstrict-prototypes

CFLAGS += -Wa,-adhlns=$(<:.c=.lst)

CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))

CFLAGS += $(CSTANDARD)

#---------------- Assembler Options ----------------

#  -Wa,...:   tell GCC to pass this to the assembler.

#  -ahlms:    create listing

#  -gstabs:   have the assembler create line number information; note that

#             for use in COFF files, additional information about filenames

#             and function names needs to be present in the assembler source

#             files -- see avr-libc docs [FIXME: not yet described there]

ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs 

#---------------- Library Options ----------------

# Minimalistic printf version

PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min

# Floating point printf version (requires MATH_LIB = -lm below)

PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt

# If this is left blank, then it will use the Standard printf version.

PRINTF_LIB = 

#PRINTF_LIB = $(PRINTF_LIB_MIN)

#PRINTF_LIB = $(PRINTF_LIB_FLOAT)

# Minimalistic scanf version

SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min

# Floating point + %[ scanf version (requires MATH_LIB = -lm below)

SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt

# If this is left blank, then it will use the Standard scanf version.

SCANF_LIB = 

#SCANF_LIB = $(SCANF_LIB_MIN)

#SCANF_LIB = $(SCANF_LIB_FLOAT)

MATH_LIB = -lm

#---------------- External Memory Options ----------------

# 64 KB of external RAM, starting after internal RAM (ATmega128!),

# used for variables (.data/.bss) and heap (malloc()).

#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff

# 64 KB of external RAM, starting after internal RAM (ATmega128!),

# only used for heap (malloc()).

#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff

EXTMEMOPTS =

#---------------- Linker Options ----------------

#  -Wl,...:     tell GCC to pass this to linker.

#    -Map:      create map file

#    --cref:    add cross reference to  map file

LDFLAGS = -Wl,-Map=$(TARGET).map,--cref

LDFLAGS += $(EXTMEMOPTS)

LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)

#---------------- Programming Options (avrdude) ----------------

# Programming hardware: alf avr910 avrisp bascom bsd 

# dt006 pavr picoweb pony-stk200 sp12 stk200 stk500

#

# Type: avrdude -c ?

# to get a full listing.

#

AVRDUDE_PROGRAMMER = avrispmkII

# com1 = serial port. Use lpt1 to connect to parallel port.

AVRDUDE_PORT = usb 

# programmer connected to serial device

AVRDUDE_WRITE_FLASH = -b 4800 -U flash:w:$(TARGET).hex

#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep

# Uncomment the following if you want avrdude's erase cycle counter.

# Note that this counter needs to be initialized first using -Yn,

# see avrdude manual.

#AVRDUDE_ERASE_COUNTER = -y

# Uncomment the following if you do /not/ wish a verification to be

# performed after programming the device.

#AVRDUDE_NO_VERIFY = -V

# Increase verbosity level.  Please use this when submitting bug

# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude> 

# to submit bug reports.

#AVRDUDE_VERBOSE = -v -v

AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)

AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)

AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)

AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)

#---------------- Debugging Options ----------------

# For simulavr only - target MCU frequency.

DEBUG_MFREQ = $(F_CPU)

# Set the DEBUG_UI to either gdb or insight.

# DEBUG_UI = gdb

DEBUG_UI = insight

# Set the debugging back-end to either avarice, simulavr.

DEBUG_BACKEND = avarice

#DEBUG_BACKEND = simulavr

# GDB Init Filename.

GDBINIT_FILE = __avr_gdbinit

# When using avarice settings for the JTAG

JTAG_DEV = /dev/com1

# Debugging port used to communicate between GDB / avarice / simulavr.

DEBUG_PORT = 4242

# Debugging host used to communicate between GDB / avarice / simulavr, normally

#     just set to localhost unless doing some sort of crazy debugging when 

#     avarice is running on a different computer.

DEBUG_HOST = localhost

#============================================================================

# Define programs and commands.

SHELL = sh

CC = avr-gcc

OBJCOPY = avr-objcopy

OBJDUMP = avr-objdump

SIZE = avr-size

NM = avr-nm

AVRDUDE = avrdude

REMOVE = rm -f

COPY = cp

WINSHELL = cmd

# Define Messages

# English

MSG_ERRORS_NONE = Errors: none

MSG_BEGIN = -------- begin --------

MSG_END = --------  end  --------

MSG_SIZE_BEFORE = Size before: 

MSG_SIZE_AFTER = Size after:

MSG_COFF = Converting to AVR COFF:

MSG_EXTENDED_COFF = Converting to AVR Extended COFF:

MSG_FLASH = Creating load file for Flash:

MSG_EEPROM = Creating load file for EEPROM:

MSG_EXTENDED_LISTING = Creating Extended Listing:

MSG_SYMBOL_TABLE = Creating Symbol Table:

MSG_LINKING = Linking:

MSG_COMPILING = Compiling:

MSG_ASSEMBLING = Assembling:

MSG_CLEANING = Cleaning project:

# Define all object files.

OBJ = $(SRC:.c=.o) $(ASRC:.S=.o) 

# Define all listing files.

LST = $(SRC:.c=.lst) $(ASRC:.S=.lst) 

# Compiler flags to generate dependency files.

GENDEPFLAGS = -MD -MP -MF .dep/$(@F).d

# Combine all necessary flags and optional flags.

# Add target processor to flags.

ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)

ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)

# Default target.

all: begin gccversion sizebefore build sizeafter end

build: elf hex eep lss sym

elf: $(TARGET).elf

hex: $(TARGET).hex

eep: $(TARGET).eep

lss: $(TARGET).lss 

sym: $(TARGET).sym

# Eye candy.

# AVR Studio 3.x does not check make's exit code but relies on

# the following magic strings to be generated by the compile job.

begin:

	@echo

	@echo $(MSG_BEGIN)

end:

	@echo $(MSG_END)

	@echo

# Display size of file.

HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex

ELFSIZE = $(SIZE) -A $(TARGET).elf

AVRMEM = avr-mem.sh $(TARGET).elf $(MCU)

sizebefore:

	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \

	$(AVRMEM) 2>/dev/null; echo; fi

sizeafter:

	@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \

	$(AVRMEM) 2>/dev/null; echo; fi

# Display compiler version information.

gccversion : 

	@$(CC) --version

# Program the device.  

program: $(TARGET).hex $(TARGET).eep

	$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)

# Generate avr-gdb config/init file which does the following:

#     define the reset signal, load the target file, connect to target, and set 

#     a breakpoint at main().

gdb-config: 

	@$(REMOVE) $(GDBINIT_FILE)

	@echo define reset >> $(GDBINIT_FILE)

	@echo SIGNAL SIGHUP >> $(GDBINIT_FILE)

	@echo end >> $(GDBINIT_FILE)

	@echo file $(TARGET).elf >> $(GDBINIT_FILE)

	@echo target remote $(DEBUG_HOST):$(DEBUG_PORT)  >> $(GDBINIT_FILE)

ifeq ($(DEBUG_BACKEND),simulavr)

	@echo load  >> $(GDBINIT_FILE)

endif	

	@echo break main >> $(GDBINIT_FILE)

debug: gdb-config $(TARGET).elf

ifeq ($(DEBUG_BACKEND), avarice)

	@echo Starting AVaRICE - Press enter when "waiting to connect" message displays.

	@$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \

	$(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT)

	@$(WINSHELL) /c pause

else

	@$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \

	$(DEBUG_MFREQ) --port $(DEBUG_PORT)

endif

	@$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE)

# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.

COFFCONVERT=$(OBJCOPY) --debugging \

--change-section-address .data-0x800000 \

--change-section-address .bss-0x800000 \

--change-section-address .noinit-0x800000 \

--change-section-address .eeprom-0x810000 

coff: $(TARGET).elf

	@echo

	@echo $(MSG_COFF) $(TARGET).cof

	$(COFFCONVERT) -O coff-avr $< $(TARGET).cof

extcoff: $(TARGET).elf

	@echo

	@echo $(MSG_EXTENDED_COFF) $(TARGET).cof

	$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof

# Create final output files (.hex, .eep) from ELF output file.

%.hex: %.elf

	@echo

	@echo $(MSG_FLASH) $@

	$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@

%.eep: %.elf

	@echo

	@echo $(MSG_EEPROM) $@

	-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \

	--change-section-lma .eeprom=0 -O $(FORMAT) $< $@

# Create extended listing file from ELF output file.

%.lss: %.elf

	@echo

	@echo $(MSG_EXTENDED_LISTING) $@

	$(OBJDUMP) -h -S $< > $@

# Create a symbol table from ELF output file.

%.sym: %.elf

	@echo

	@echo $(MSG_SYMBOL_TABLE) $@

	$(NM) -n $< > $@

# Link: create ELF output file from object files.

.SECONDARY : $(TARGET).elf

.PRECIOUS : $(OBJ)

%.elf: $(OBJ)

	@echo

	@echo $(MSG_LINKING) $@

	$(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)

# Compile: create object files from C source files.

%.o : %.c

	@echo

	@echo $(MSG_COMPILING) $<

	$(CC) -c $(ALL_CFLAGS) $< -o $@ 

# Compile: create assembler files from C source files.

%.s : %.c

	$(CC) -S $(ALL_CFLAGS) $< -o $@

# Assemble: create object files from assembler source files.

%.o : %.S

	@echo

	@echo $(MSG_ASSEMBLING) $<

	$(CC) -c $(ALL_ASFLAGS) $< -o $@

# Create preprocessed source for use in sending a bug report.

%.i : %.c

	$(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@ 

# Target: clean project.

clean: begin clean_list end

clean_list :

	@echo

	@echo $(MSG_CLEANING)

	$(REMOVE) $(TARGET).hex

	$(REMOVE) $(TARGET).eep

	$(REMOVE) $(TARGET).cof

	$(REMOVE) $(TARGET).elf

	$(REMOVE) $(TARGET).map

	$(REMOVE) $(TARGET).sym

	$(REMOVE) $(TARGET).lss

	$(REMOVE) $(OBJ)

	$(REMOVE) $(LST)

	$(REMOVE) $(SRC:.c=.s)

	$(REMOVE) $(SRC:.c=.d)

	$(REMOVE) .dep/*

# Include the dependency files.

-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)

# Listing of phony targets.

.PHONY : all begin finish end sizebefore sizeafter gccversion \

build elf hex eep lss sym coff extcoff \

clean clean_list program debug gdb-config