boot.h

MANTIS是由科罗拉多大学开发的传感器网络嵌入式操作系统。 这是mantis的0.9.5版本的源码。

//  This file is part of MANTIS OS, Operating System for Nymph.
//  See http://mantis.cs.colorado.edu/
//
//  Copyright (C) 2003 University of Colorado, Boulder
//
//  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
//  (See http://www.gnu.org/copyleft/gpl.html)
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
//  USA, or send email to [e-mail].
/*
  Project Mantis
  File: boot.h
  Author: Brian Shucker
  Date: 5-22-03

  boot loader header file
*/

/** @file boot.h
 * @brief A boot loader for the atmega128.
 *
 * Connects to a program over a serial connection to allow programming 
 * directly over the serial port.
 * @author Jeff Rose
 * @date Created: 03/15/2003
 */

#ifndef _BOOT_H_
#define _BOOT_H_

#include <inttypes.h>

/** @brief A structure to hold the boot control block in flash */
typedef struct control_block
{
   /*WARNING: struct must have even size (word aligned)*/
   /** @brief The node id */
   uint16_t node_id;
   /** @brief The starting addr of the image to flash (or 0 if none) */
   uint32_t start_addr;
   /** @brief The lengh of the image to flash (or 0 if none) */
   uint32_t byte_count;
   /** @brief Whether or not to dynamically reprogram on reboot */
   uint8_t reprogram;
   uint8_t reserved;
} boot_control_block_t;

/*control block address is in the on-chip eeprom, address 0-12 */
/** @brief location of boot control block in eeprom (currently unused) */
#define CONTROL_BLOCK_ADDR 0
#define CONTROL_BLOCK_SIZE sizeof (boot_control_block_t)
/** @brief max number of code pages in an image (8 for boot loader) */
#define MAX_PAGES 248
/** @brief location of reset vector */
#define RESET_VECTOR_ADDR 0x1E000 

void flash_write_page(void *flash_addr, uint8_t *buf);
uint8_t flash_read_fuse (void *addr);
void flash_enable_rww (void);
uint16_t flash_read_word (void *addr);

#endif /*_BOOT_H_*/