718 lines
18 KiB
C
718 lines
18 KiB
C
/**********************************************************/
|
|
/* Serial Bootloader for Atmel megaAVR Controllers */
|
|
/* */
|
|
/* tested with ATmega644 and ATmega644P */
|
|
/* should work with other mega's, see code for details */
|
|
/* */
|
|
/* ATmegaBOOT.c */
|
|
/* */
|
|
/* 20090131: Added 324P support from Alex Leone */
|
|
/* Marius Kintel */
|
|
/* 20080915: applied ADABoot mods for Sanguino 644P */
|
|
/* Brian Riley */
|
|
/* 20080711: hacked for Sanguino by Zach Smith */
|
|
/* and Justin Day */
|
|
/* 20070626: hacked for Arduino Diecimila (which auto- */
|
|
/* resets when a USB connection is made to it) */
|
|
/* by D. Mellis */
|
|
/* 20060802: hacked for Arduino by D. Cuartielles */
|
|
/* based on a previous hack by D. Mellis */
|
|
/* and D. Cuartielles */
|
|
/* */
|
|
/* Monitor and debug functions were added to the original */
|
|
/* code by Dr. Erik Lins, chip45.com. (See below) */
|
|
/* */
|
|
/* Thanks to Karl Pitrich for fixing a bootloader pin */
|
|
/* problem and more informative LED blinking! */
|
|
/* */
|
|
/* For the latest version see: */
|
|
/* http://www.chip45.com/ */
|
|
/* */
|
|
/* ------------------------------------------------------ */
|
|
/* */
|
|
/* based on stk500boot.c */
|
|
/* Copyright (c) 2003, Jason P. Kyle */
|
|
/* All rights reserved. */
|
|
/* see avr1.org for original file and information */
|
|
/* */
|
|
/* This program is free software; you can redistribute it */
|
|
/* and/or modify it under the terms of the GNU General */
|
|
/* Public License as published by the Free Software */
|
|
/* Foundation; either version 2 of the License, or */
|
|
/* (at your option) any later version. */
|
|
/* */
|
|
/* This program 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 GNU General Public */
|
|
/* License for more details. */
|
|
/* */
|
|
/* You should have received a copy of the GNU General */
|
|
/* Public License along with this program; if not, write */
|
|
/* to the Free Software Foundation, Inc., */
|
|
/* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
|
|
/* */
|
|
/* Licence can be viewed at */
|
|
/* http://www.fsf.org/licenses/gpl.txt */
|
|
/* */
|
|
/* Target = Atmel AVR m128,m64,m32,m16,m8,m162,m163,m169, */
|
|
/* m8515,m8535. ATmega161 has a very small boot block so */
|
|
/* isn't supported. */
|
|
/* */
|
|
/* Tested with m168 */
|
|
/**********************************************************/
|
|
|
|
/* $Id$ */
|
|
|
|
|
|
/* some includes */
|
|
#include <inttypes.h>
|
|
#include <avr/io.h>
|
|
#include <avr/pgmspace.h>
|
|
#include <avr/interrupt.h>
|
|
#include <avr/wdt.h>
|
|
#include <avr/boot.h>
|
|
|
|
#ifdef ADABOOT
|
|
#define NUM_LED_FLASHES 3
|
|
#define ADABOOT_VER 1
|
|
#endif
|
|
|
|
|
|
/* 20070707: hacked by David A. Mellis - after this many errors give up and launch application */
|
|
#define MAX_ERROR_COUNT 5
|
|
|
|
/* set the UART baud rate */
|
|
/* 20080711: hack by Zach Hoeken */
|
|
#define BAUD_RATE 38400
|
|
|
|
/* SW_MAJOR and MINOR needs to be updated from time to time to avoid warning message from AVR Studio */
|
|
/* never allow AVR Studio to do an update !!!! */
|
|
#define HW_VER 0x02
|
|
#define SW_MAJOR 0x01
|
|
#define SW_MINOR 0x10
|
|
|
|
/* onboard LED is used to indicate, that the bootloader was entered (3x flashing) */
|
|
/* if monitor functions are included, LED goes on after monitor was entered */
|
|
#define LED_DDR DDRB
|
|
#define LED_PORT PORTB
|
|
#define LED_PIN PINB
|
|
#define LED PINB0
|
|
|
|
/* define various device id's */
|
|
/* manufacturer byte is always the same */
|
|
#define SIG1 0x1E // Yep, Atmel is the only manufacturer of AVR micros. Single source :(
|
|
#if defined(__AVR_ATmega1284P__)
|
|
#define SIG2 0x97
|
|
#define SIG3 0x05
|
|
#elif defined(__AVR_ATmega644P__)
|
|
#define SIG2 0x96
|
|
#define SIG3 0x0A
|
|
#elif defined(__AVR_ATmega644__)
|
|
#define SIG2 0x96
|
|
#define SIG3 0x09
|
|
#elif defined(__AVR_ATmega324P__)
|
|
#define SIG2 0x95
|
|
#define SIG3 0x08
|
|
#endif
|
|
|
|
#define PAGE_SIZE 0x080U //128 words
|
|
#define PAGE_SIZE_BYTES 0x100U //256 bytes
|
|
|
|
/* function prototypes */
|
|
void putch(char);
|
|
char getch(void);
|
|
void getNch(uint8_t);
|
|
void byte_response(uint8_t);
|
|
void nothing_response(void);
|
|
char gethex(void);
|
|
void puthex(char);
|
|
void flash_led(uint8_t);
|
|
|
|
/* some variables */
|
|
union address_union
|
|
{
|
|
uint16_t word;
|
|
uint8_t byte[2];
|
|
} address;
|
|
|
|
union length_union
|
|
{
|
|
uint16_t word;
|
|
uint8_t byte[2];
|
|
} length;
|
|
|
|
struct flags_struct
|
|
{
|
|
unsigned eeprom : 1;
|
|
unsigned rampz : 1;
|
|
} flags;
|
|
|
|
uint8_t buff[256];
|
|
|
|
uint8_t error_count = 0;
|
|
uint8_t sreg;
|
|
|
|
void (*app_start)(void) = 0x0000;
|
|
|
|
/* main program starts here */
|
|
int main(void)
|
|
{
|
|
uint8_t ch,ch2;
|
|
uint16_t w;
|
|
uint16_t i;
|
|
|
|
asm volatile("nop\n\t");
|
|
|
|
#ifdef ADABOOT // BBR/LF 10/8/2007 & 9/13/2008
|
|
ch = MCUSR;
|
|
MCUSR = 0;
|
|
|
|
WDTCSR |= _BV(WDCE) | _BV(WDE);
|
|
WDTCSR = 0;
|
|
|
|
// Check if the WDT was used to reset, in which case we dont bootload and skip straight to the code. woot.
|
|
if (! (ch & _BV(EXTRF))) // if it's a not an external reset...
|
|
app_start(); // skip bootloader
|
|
#endif
|
|
|
|
|
|
//initialize our serial port.
|
|
UBRR0L = (uint8_t)(F_CPU/(BAUD_RATE*16L)-1);
|
|
UBRR0H = (F_CPU/(BAUD_RATE*16L)-1) >> 8;
|
|
UCSR0B = (1<<RXEN0) | (1<<TXEN0);
|
|
UCSR0C = (1<<UCSZ00) | (1<<UCSZ01);
|
|
|
|
/* Enable internal pull-up resistor on pin D0 (RX), in order
|
|
to supress line noise that prevents the bootloader from
|
|
timing out (DAM: 20070509) */
|
|
DDRD &= ~_BV(PIND0);
|
|
PORTD |= _BV(PIND0);
|
|
|
|
/* set LED pin as output */
|
|
LED_DDR |= _BV(LED);
|
|
|
|
/* flash onboard LED to signal entering of bootloader */
|
|
/* ADABOOT will do two series of flashes. first 4 - signifying ADABOOT */
|
|
/* then a pause and another flash series signifying ADABOOT sub-version */
|
|
|
|
|
|
flash_led(NUM_LED_FLASHES);
|
|
|
|
#ifdef ADABOOT
|
|
flash_led(ADABOOT_VER); // BBR 9/13/2008
|
|
#endif
|
|
|
|
/* forever loop */
|
|
for (;;)
|
|
{
|
|
/* get character from UART */
|
|
ch = getch();
|
|
|
|
/* A bunch of if...else if... gives smaller code than switch...case ! */
|
|
|
|
/* Hello is anyone home ? */
|
|
if(ch=='0')
|
|
nothing_response();
|
|
|
|
|
|
/* Request programmer ID */
|
|
/* Not using PROGMEM string due to boot block in m128 being beyond 64kB boundry */
|
|
/* Would need to selectively manipulate RAMPZ, and it's only 9 characters anyway so who cares. */
|
|
else if(ch=='1')
|
|
{
|
|
if (getch() == ' ')
|
|
{
|
|
putch(0x14);
|
|
putch('A');
|
|
putch('V');
|
|
putch('R');
|
|
putch(' ');
|
|
putch('I');
|
|
putch('S');
|
|
putch('P');
|
|
putch(0x10);
|
|
}
|
|
else
|
|
{
|
|
if (++error_count == MAX_ERROR_COUNT)
|
|
app_start();
|
|
}
|
|
}
|
|
|
|
|
|
/* AVR ISP/STK500 board commands DON'T CARE so default nothing_response */
|
|
else if(ch=='@')
|
|
{
|
|
ch2 = getch();
|
|
if (ch2 > 0x85)
|
|
getch();
|
|
nothing_response();
|
|
}
|
|
|
|
|
|
/* AVR ISP/STK500 board requests */
|
|
else if(ch=='A')
|
|
{
|
|
ch2 = getch();
|
|
if(ch2 == 0x80)
|
|
byte_response(HW_VER); // Hardware version
|
|
else if(ch2==0x81)
|
|
byte_response(SW_MAJOR); // Software major version
|
|
else if(ch2==0x82)
|
|
byte_response(SW_MINOR); // Software minor version
|
|
else if(ch2==0x98)
|
|
byte_response(0x03); // Unknown but seems to be required by avr studio 3.56
|
|
else
|
|
byte_response(0x00); // Covers various unnecessary responses we don't care about
|
|
}
|
|
|
|
|
|
/* Device Parameters DON'T CARE, DEVICE IS FIXED */
|
|
else if(ch=='B')
|
|
{
|
|
getNch(20);
|
|
nothing_response();
|
|
}
|
|
|
|
|
|
/* Parallel programming stuff DON'T CARE */
|
|
else if(ch=='E')
|
|
{
|
|
getNch(5);
|
|
nothing_response();
|
|
}
|
|
|
|
|
|
/* Enter programming mode */
|
|
else if(ch=='P')
|
|
{
|
|
nothing_response();
|
|
}
|
|
|
|
|
|
/* Leave programming mode */
|
|
else if(ch=='Q')
|
|
{
|
|
nothing_response();
|
|
#ifdef ADABOOT
|
|
// autoreset via watchdog (sneaky!) BBR/LF 9/13/2008
|
|
WDTCSR = _BV(WDE);
|
|
while (1); // 16 ms
|
|
#endif
|
|
}
|
|
|
|
|
|
/* Erase device, don't care as we will erase one page at a time anyway. */
|
|
else if(ch=='R')
|
|
{
|
|
nothing_response();
|
|
}
|
|
|
|
|
|
/* Set address, little endian. EEPROM in bytes, FLASH in words */
|
|
/* Perhaps extra address bytes may be added in future to support > 128kB FLASH. */
|
|
/* This might explain why little endian was used here, big endian used everywhere else. */
|
|
else if(ch=='U')
|
|
{
|
|
address.byte[0] = getch();
|
|
address.byte[1] = getch();
|
|
nothing_response();
|
|
}
|
|
|
|
|
|
/* Universal SPI programming command, disabled. Would be used for fuses and lock bits. */
|
|
else if(ch=='V')
|
|
{
|
|
getNch(4);
|
|
byte_response(0x00);
|
|
}
|
|
|
|
|
|
/* Write memory, length is big endian and is in bytes */
|
|
else if(ch=='d')
|
|
{
|
|
length.byte[1] = getch();
|
|
length.byte[0] = getch();
|
|
|
|
flags.eeprom = 0;
|
|
if (getch() == 'E')
|
|
flags.eeprom = 1;
|
|
|
|
for (i=0; i<PAGE_SIZE; i++)
|
|
buff[i] = 0;
|
|
|
|
for (w = 0; w < length.word; w++)
|
|
{
|
|
// Store data in buffer, can't keep up with serial data stream whilst programming pages
|
|
buff[w] = getch();
|
|
}
|
|
|
|
if (getch() == ' ')
|
|
{
|
|
if (flags.eeprom)
|
|
{
|
|
//Write to EEPROM one byte at a time
|
|
for(w=0;w<length.word;w++)
|
|
{
|
|
while(EECR & (1<<EEPE));
|
|
|
|
EEAR = (uint16_t)(void *)address.word;
|
|
EEDR = buff[w];
|
|
EECR |= (1<<EEMPE);
|
|
EECR |= (1<<EEPE);
|
|
|
|
address.word++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//address * 2 -> byte location
|
|
address.word = address.word << 1;
|
|
|
|
//Even up an odd number of bytes
|
|
if ((length.byte[0] & 0x01))
|
|
length.word++;
|
|
|
|
// HACKME: EEPE used to be EEWE
|
|
//Wait for previous EEPROM writes to complete
|
|
//while(bit_is_set(EECR,EEPE));
|
|
while(EECR & (1<<EEPE));
|
|
|
|
asm volatile(
|
|
"clr r17 \n\t" //page_word_count
|
|
"lds r30,address \n\t" //Address of FLASH location (in bytes)
|
|
"lds r31,address+1 \n\t"
|
|
"ldi r28,lo8(buff) \n\t" //Start of buffer array in RAM
|
|
"ldi r29,hi8(buff) \n\t"
|
|
"lds r24,length \n\t" //Length of data to be written (in bytes)
|
|
"lds r25,length+1 \n\t"
|
|
"length_loop: \n\t" //Main loop, repeat for number of words in block
|
|
"cpi r17,0x00 \n\t" //If page_word_count=0 then erase page
|
|
"brne no_page_erase \n\t"
|
|
"wait_spm1: \n\t"
|
|
"lds r16,%0 \n\t" //Wait for previous spm to complete
|
|
"andi r16,1 \n\t"
|
|
"cpi r16,1 \n\t"
|
|
"breq wait_spm1 \n\t"
|
|
"ldi r16,0x03 \n\t" //Erase page pointed to by Z
|
|
"sts %0,r16 \n\t"
|
|
"spm \n\t"
|
|
"wait_spm2: \n\t"
|
|
"lds r16,%0 \n\t" //Wait for previous spm to complete
|
|
"andi r16,1 \n\t"
|
|
"cpi r16,1 \n\t"
|
|
"breq wait_spm2 \n\t"
|
|
|
|
"ldi r16,0x11 \n\t" //Re-enable RWW section
|
|
"sts %0,r16 \n\t"
|
|
"spm \n\t"
|
|
"no_page_erase: \n\t"
|
|
"ld r0,Y+ \n\t" //Write 2 bytes into page buffer
|
|
"ld r1,Y+ \n\t"
|
|
|
|
"wait_spm3: \n\t"
|
|
"lds r16,%0 \n\t" //Wait for previous spm to complete
|
|
"andi r16,1 \n\t"
|
|
"cpi r16,1 \n\t"
|
|
"breq wait_spm3 \n\t"
|
|
"ldi r16,0x01 \n\t" //Load r0,r1 into FLASH page buffer
|
|
"sts %0,r16 \n\t"
|
|
"spm \n\t"
|
|
|
|
"inc r17 \n\t" //page_word_count++
|
|
"cpi r17,%1 \n\t"
|
|
"brlo same_page \n\t" //Still same page in FLASH
|
|
"write_page: \n\t"
|
|
"clr r17 \n\t" //New page, write current one first
|
|
"wait_spm4: \n\t"
|
|
"lds r16,%0 \n\t" //Wait for previous spm to complete
|
|
"andi r16,1 \n\t"
|
|
"cpi r16,1 \n\t"
|
|
"breq wait_spm4 \n\t"
|
|
"ldi r16,0x05 \n\t" //Write page pointed to by Z
|
|
"sts %0,r16 \n\t"
|
|
"spm \n\t"
|
|
"wait_spm5: \n\t"
|
|
"lds r16,%0 \n\t" //Wait for previous spm to complete
|
|
"andi r16,1 \n\t"
|
|
"cpi r16,1 \n\t"
|
|
"breq wait_spm5 \n\t"
|
|
"ldi r16,0x11 \n\t" //Re-enable RWW section
|
|
"sts %0,r16 \n\t"
|
|
"spm \n\t"
|
|
"same_page: \n\t"
|
|
"adiw r30,2 \n\t" //Next word in FLASH
|
|
"sbiw r24,2 \n\t" //length-2
|
|
"breq final_write \n\t" //Finished
|
|
"rjmp length_loop \n\t"
|
|
"final_write: \n\t"
|
|
"cpi r17,0 \n\t"
|
|
"breq block_done \n\t"
|
|
"adiw r24,2 \n\t" //length+2, fool above check on length after short page write
|
|
"rjmp write_page \n\t"
|
|
"block_done: \n\t"
|
|
"clr __zero_reg__ \n\t" //restore zero register
|
|
: "=m" (SPMCSR) : "M" (PAGE_SIZE) : "r0","r16","r17","r24","r25","r28","r29","r30","r31"
|
|
|
|
);
|
|
}
|
|
putch(0x14);
|
|
putch(0x10);
|
|
}
|
|
else
|
|
{
|
|
if (++error_count == MAX_ERROR_COUNT)
|
|
app_start();
|
|
}
|
|
}
|
|
|
|
/* Read memory block mode, length is big endian. */
|
|
else if(ch=='t')
|
|
{
|
|
length.byte[1] = getch();
|
|
length.byte[0] = getch();
|
|
|
|
if (getch() == 'E')
|
|
flags.eeprom = 1;
|
|
else
|
|
{
|
|
flags.eeprom = 0;
|
|
address.word = address.word << 1; // address * 2 -> byte location
|
|
}
|
|
|
|
// Command terminator
|
|
if (getch() == ' ')
|
|
{
|
|
putch(0x14);
|
|
for (w=0; w<length.word; w++)
|
|
{
|
|
// Can handle odd and even lengths okay
|
|
if (flags.eeprom)
|
|
{
|
|
// Byte access EEPROM read
|
|
while(EECR & (1<<EEPE));
|
|
EEAR = (uint16_t)(void *)address.word;
|
|
EECR |= (1<<EERE);
|
|
putch(EEDR);
|
|
|
|
address.word++;
|
|
}
|
|
else
|
|
{
|
|
if (!flags.rampz)
|
|
putch(pgm_read_byte_near(address.word));
|
|
|
|
address.word++;
|
|
}
|
|
}
|
|
putch(0x10);
|
|
}
|
|
}
|
|
|
|
|
|
/* Get device signature bytes */
|
|
else if(ch=='u')
|
|
{
|
|
if (getch() == ' ')
|
|
{
|
|
putch(0x14);
|
|
putch(SIG1);
|
|
putch(SIG2);
|
|
putch(SIG3);
|
|
putch(0x10);
|
|
}
|
|
else
|
|
{
|
|
if (++error_count == MAX_ERROR_COUNT)
|
|
app_start();
|
|
}
|
|
}
|
|
|
|
|
|
/* Read oscillator calibration byte */
|
|
else if(ch=='v')
|
|
byte_response(0x00);
|
|
|
|
else if (++error_count == MAX_ERROR_COUNT)
|
|
app_start();
|
|
|
|
}
|
|
/* end of forever loop */
|
|
}
|
|
|
|
|
|
char gethex(void)
|
|
{
|
|
char ah,al;
|
|
|
|
ah = getch();
|
|
putch(ah);
|
|
al = getch();
|
|
putch(al);
|
|
|
|
if(ah >= 'a')
|
|
ah = ah - 'a' + 0x0a;
|
|
else if(ah >= '0')
|
|
ah -= '0';
|
|
if(al >= 'a')
|
|
al = al - 'a' + 0x0a;
|
|
else if(al >= '0')
|
|
al -= '0';
|
|
|
|
return (ah << 4) + al;
|
|
}
|
|
|
|
|
|
void puthex(char ch)
|
|
{
|
|
char ah,al;
|
|
|
|
ah = (ch & 0xf0) >> 4;
|
|
if(ah >= 0x0a)
|
|
ah = ah - 0x0a + 'a';
|
|
else
|
|
ah += '0';
|
|
|
|
al = (ch & 0x0f);
|
|
if(al >= 0x0a)
|
|
al = al - 0x0a + 'a';
|
|
else
|
|
al += '0';
|
|
|
|
putch(ah);
|
|
putch(al);
|
|
}
|
|
|
|
|
|
void putch(char ch)
|
|
{
|
|
while (!(UCSR0A & _BV(UDRE0)));
|
|
UDR0 = ch;
|
|
}
|
|
|
|
|
|
|
|
|
|
char getch(void)
|
|
{
|
|
uint32_t count = 0;
|
|
|
|
#ifdef ADABOOT
|
|
LED_PORT &= ~_BV(LED); // toggle LED to show activity - BBR/LF 10/3/2007 & 9/13/2008
|
|
#endif
|
|
|
|
while(!(UCSR0A & _BV(RXC0)))
|
|
{
|
|
/* 20060803 DojoCorp:: Addon coming from the previous Bootloader*/
|
|
/* HACKME:: here is a good place to count times*/
|
|
count++;
|
|
if (count > MAX_TIME_COUNT)
|
|
app_start();
|
|
}
|
|
|
|
#ifdef ADABOOT
|
|
LED_PORT |= _BV(LED); // toggle LED to show activity - BBR/LF 10/3/2007 & 9/13/2008
|
|
#endif
|
|
|
|
return UDR0;
|
|
}
|
|
|
|
|
|
void getNch(uint8_t count)
|
|
{
|
|
uint8_t i;
|
|
for(i=0;i<count;i++)
|
|
{
|
|
while(!(UCSR0A & _BV(RXC0)));
|
|
UDR0;
|
|
}
|
|
}
|
|
|
|
|
|
void byte_response(uint8_t val)
|
|
{
|
|
if (getch() == ' ')
|
|
{
|
|
putch(0x14);
|
|
putch(val);
|
|
putch(0x10);
|
|
}
|
|
else
|
|
{
|
|
if (++error_count == MAX_ERROR_COUNT)
|
|
app_start();
|
|
}
|
|
}
|
|
|
|
|
|
void nothing_response(void)
|
|
{
|
|
if (getch() == ' ')
|
|
{
|
|
putch(0x14);
|
|
putch(0x10);
|
|
}
|
|
else
|
|
{
|
|
if (++error_count == MAX_ERROR_COUNT)
|
|
app_start();
|
|
}
|
|
}
|
|
|
|
#ifdef ADABOOT
|
|
|
|
void flash_led(uint8_t count)
|
|
{
|
|
/* flash onboard LED count times to signal entering of bootloader */
|
|
/* l needs to be volatile or the delay loops below might get */
|
|
/* optimized away if compiling with optimizations (DAM). */
|
|
|
|
volatile uint32_t l;
|
|
|
|
if (count == 0) {
|
|
count = ADABOOT;
|
|
}
|
|
|
|
|
|
int8_t i;
|
|
for (i = 0; i < count; ++i) {
|
|
LED_PORT |= _BV(LED); // LED on
|
|
for(l = 0; l < (F_CPU / 1000); ++l); // delay NGvalue was 1000 for both loops - BBR
|
|
LED_PORT &= ~_BV(LED); // LED off
|
|
for(l = 0; l < (F_CPU / 250); ++l); // delay asymmteric for ADA BOOT BBR
|
|
}
|
|
|
|
for(l = 0; l < (F_CPU / 100); ++l); // pause ADA BOOT BBR
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
void flash_led(uint8_t count)
|
|
{
|
|
/* flash onboard LED three times to signal entering of bootloader */
|
|
/* l needs to be volatile or the delay loops below might get
|
|
optimized away if compiling with optimizations (DAM). */
|
|
volatile uint32_t l;
|
|
|
|
if (count == 0) {
|
|
count = 3;
|
|
}
|
|
|
|
int8_t i;
|
|
for (i = 0; i < count; ++i) {
|
|
LED_PORT |= _BV(LED);
|
|
for(l = 0; l < (F_CPU / 1000); ++l);
|
|
LED_PORT &= ~_BV(LED);
|
|
for(l = 0; l < (F_CPU / 1000); ++l);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
#endif
|
|
|
|
|
|
/* end of file ATmegaBOOT.c */
|