lpc2148_sys_cnfg.h

NXP公司 嵌入式系统竞赛 源代码

/*************************************************************************
;    Copyright (c) 2004, BU MMS China, Philps Semiconductor
;    All rights reserved.
;
;    file name : LPC2000_LIB.H
;    description: give some basic definitions which will be used in the drivers
;
;    History     :

;
;*************************************************************************/
#ifndef __LPC2148_SYS_CNFG_H
#define __LPC2148_SYS_CNFG_H

/* OSC [Hz] */
#define FOSC 	          14745600
/* Core clk [Hz] */
#define FCCLK	          14745600*4
#define Fpclk             (FCCLK/4)*1     //VPB 时钟频率

#define TIMER_PRECISION   1   // Time Precision time [us]
#define TICK_PER_SECOND   100 // Sys timer tick per seconds

#endif /* __LPC2148_SYS_CNFG_H */