dac0832.h

基于DAC0832的简单波形发生器

//---------------------------------------------------------
//	  DAC0832驱动头文件
//---------------------------------------------------------	
#ifndef _DAC0832_H
#define _DAC0832_H

#define uint unsigned int
#define uchar unsigned char
#define ulong unsigned long

uchar code TAB_Sin[256] =	{	0x80,0x83,0x86,0x89,0x8D,0x90,0x93,0x96,	//正弦波码表
								0x99,0x9C,0x9F,0xA2,0xA5,0xA8,0xAB,0xAE,
								0xB1,0xB4,0xB7,0xBA,0xBC,0xBF,0xC2,0xC5,
								0xC7,0xCA,0xCC,0xCF,0xD1,0xD4,0xD6,0xD8,
								0xDA,0xDD,0xDF,0xE1,0xE3,0xE5,0xE7,0xE9,
								0xEA,0xEC,0xEE,0xEF,0xF1,0xF2,0xF4,0xF5,
								0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFC,0xFD,
								0xFD,0xFE,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
								0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,0xFD,
								0xFD,0xFC,0xFB,0xFA,0xF9,0xF8,0xF7,0xF6,
								0xF5,0xF4,0xF2,0xF1,0xEF,0xEE,0xEC,0xEA,
								0xE9,0xE7,0xE5,0xE3,0xE1,0xDE,0xDD,0xDA,
								0xD8,0xD6,0xD4,0xD1,0xCF,0xCC,0xCA,0xC7,
								0xC5,0xC2,0xBF,0xBC,0xBA,0xB7,0xB4,0xB1,
								0xAE,0xAB,0xA8,0xA5,0xA2,0x9F,0x9C,0x99,
								0x96,0x93,0x90,0x8D,0x89,0x86,0x83,0x80,
								0x80,0x7C,0x79,0x78,0x72,0x6F,0x6C,0x69,
								0x66,0x63,0x60,0x5D,0x5A,0x57,0x55,0x51,
								0x4E,0x4C,0x48,0x45,0x43,0x40,0x3D,0x3A,
								0x38,0x35,0x33,0x30,0x2E,0x2B,0x29,0x27,
								0x25,0x22,0x20,0x1E,0x1C,0x1A,0x18,0x16,
								0x15,0x13,0x11,0x10,0x0E,0x0D,0x0B,0x0A,
								0x09,0x08,0x07,0x06,0x05,0x04,0x03,0x02,
								0x02,0x02,0x02,0x01,0x01,0x01,0x01,0x01,
								0x01,0x01,0x01,0x01,0x01,0x02,0x02,0x02,
								0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
								0x0A,0x0B,0x0D,0x0E,0x10,0x11,0x13,0x15,
								0x16,0x18,0x1A,0x1C,0x1E,0x20,0x22,0x25,
								0x27,0x29,0x2B,0x2E,0x30,0x33,0x35,0x38,
								0x3A,0x3D,0x40,0x43,0x45,0x48,0x4C,0x4E,
								0x51,0x55,0x57,0x5A,0x5D,0x60,0x63,0x66,
								0x69,0x6C,0x6F,0x72,0x76,0x79,0x7C,0x80,
							};

#define DAC0832_dat P0

sbit CS1 = P3^4;
sbit XREF = P3^5;
sbit Wr = P3^6;
sbit CS2 = P3^7;
 
extern void sjbo(void);
extern void juchibo(void);
extern void fangbo(void);
extern void zhengxian(void);