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ben-wpan/atusb/fw/boot.c

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/*
* fw/boot.c - DFU boot loader for ATUSB
*
* Written 2008-2011 by Werner Almesberger
* Copyright 2008-2011 Werner Almesberger
*
* 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.
*/
#include <stdint.h>
#include <avr/io.h>
#define F_CPU 8000000UL
#include <util/delay.h>
#include "usb.h"
#include "dfu.h"
#include "board.h"
#include "spi.h"
#include "atusb/ep0.h"
#define MS_TO_LOOPS(ms) ((uint32_t) (ms)*81)
static void (*run_payload)(void) = 0;
int main(void)
{
uint32_t loop = 0;
board_init();
spi_init();
reset_rf();
/* now we should be at 8 MHz */
usb_init();
dfu_init();
led(1);
while (loop != MS_TO_LOOPS(2000)) {
usb_poll();
if (dfu.state == dfuIDLE)
loop++;
else
loop = 0;
}
led(0);
usb_reset();
run_payload();
while (1); /* not reached */
}