board.h

来自「最新版IAR FOR ARM（EWARM）5.11中的代码例子」· C头文件 代码 · 共 40 行

/*************************************************************************
 *
 *    Used with ICCARM and AARM.
 *
 *    (c) Copyright IAR Systems 2007
 *
 *    File name   : board.h
 *    Description : board definition file
 *
 *    History :
 *    1. Date        : August 2, 2007
 *       Author      : Stanimir Bonev
 *       Description : Create
 *
 *    $Revision: 18083 $
 **************************************************************************/
#include "arm_comm.h"

#ifndef __BOARD_H
#define __BOARD_H

#define OSC             (4MHZ)

#define CLK_DIV         1
#define LOW_CLK_DIV     8
#define MCLK_DIV        2

#define PRE_DIV_PLL     1
#define POST_DIV_PLL    1
#define MUL_PLL         52

#define PCLK_DIV        2


#define CORE_CLK_FREQ   ((OSC*(MUL_PLL+8)/((1<<POST_DIV_PLL)*(PRE_DIV_PLL+2)))/CLK_DIV)
#define PCLK_FREQ       (CORE_CLK_FREQ/2)
#define LFCLK_FREQ      (OSC/(MCLK_DIV*LOW_CLK_DIV))

#endif // __BOARD_H