mirror of
git://projects.qi-hardware.com/ben-wpan.git
synced 2024-11-30 02:11:53 +02:00
d233c04c86
- usb/usb.h, usb/atu2.c (usb_reset): reset the USB bus by detaching and re-attaching the device - boot.c (main): force a USB reset before running the payload - usb/atu2.c (usb_poll): test for USB reset from the host (in progress) - usb/dfu.c (my_reset, dfu_init): register user USB reset handler
65 lines
1007 B
C
65 lines
1007 B
C
/*
|
|
* 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 */
|
|
}
|