max262.h

程控滤波器max262模块驱动

#ifndef _max262_h_
#define _max262_h_

#include"89c51rd2.h"

/*测试用
#include"delay.h"
#include"lcd.h"
#include"infrared.h"
*/

//硬件接口
sbit max262wr	=	P2^7;
sbit max262a0	=	P2^6;
sbit max262a1	=	P2^5;
sbit max262a2	=	P2^4;
sbit max262a3	=	P2^3;
sbit max262d0	=	P2^2;
sbit max262d1	=	P2^1;

//#define MAX262FCLK (3579545)

//函数声明
void GiveData(unsigned char address,unsigned char databit);
void SetMax262(long clkab,unsigned char mode, long freq, unsigned char q, unsigned char ab);
//clkab:该滤波器使用的时钟频率 mode:1 2 3 4  f0: q:0x00~0x7f(128) ab:ab=0选A；ab=1选B
#endif