board.h

這是一個實時嵌入式作業系統 實作了MCS51 ARM等MCU

/************************************************************
 * board/board.h
 *
 *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <[e-mail]>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name Gregory Nutt nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 ************************************************************/

#ifndef __ARCH_BOARD_BOARD_H
#define __ARCH_BOARD_BOARD_H

/************************************************************
 * Included Files
 ************************************************************/

#ifndef __ASSEMBLY__
# include <sys/types.h>
#endif

/************************************************************
 * Definitions
 ************************************************************/

/* Clocking *************************************************/

#define LPC214X_FOSC      12000000
#define LPC214X_PLL_M     5
#define LPC214X_MSEL      (PLL_M-1)
#define LPC214X_PLL_P     2

#define LPC214X_PCLKFREQ  (LPC214X_FOSC/4) /* PCLK must be FOSC/4 */

#define LPC214X_PSEL0     5
#define LPC214X_PSEL1     6

#define LPC214X_PLLE      0
#define LPC214X_PLLC      1

#define LPC214X_PLOCK     10

#define LPC214X_PLL_FEED1 0xaa
#define LPC214X_PLL_FEED2 0x55

/* LED definitions ******************************************/

/************************************************************
 * Inline Functions
 ************************************************************/

#endif  /* __ARCH_BOARD_BOARD_H */