ad9852.h

AD9852是现代信号源广泛采用的芯片

#ifndef AD9852_H
#define AD9852_H

#ifndef AD9852_GLOBALS
	#define AD9852_EXT extern
#else
	#define AD9852_EXT
	unsigned char SIN_Cfg[4]={0x10,0x4f,0x00,0x00}   ;
#endif
#include "ARM_Type.h"
#include <LPC213X.h>
#include <inttypes.h>
//频率控制字结构体
typedef union 
{
uint64_t  lFreq;
INT8U  cFreq[8];
}TW_FREQ;


//单音模式

//AD9852_EXT TW_FREQ Init_Freq; 

//P0.3~P0.8   -> GPIO -> A0~5
//P0.12       -> GPIO -> DDS_RST
//P0.25       -> GPIO -> DDS_SHAP
//P0.28       -> GPIO -> DDS_WR
//P0.29       -> GPIO -> DDS_RD
//P0.30       -> GPIO -> DDS_FSK
//P1.25		  -> GPIO -> DDS_UD

//P1.16~P1.23 -> GPIO -> DATA0~7

#define DDS_RST_BIT  ((unsigned)1<<12)
#define DDS_SHAP_BIT ((unsigned)1<<25)
#define DDS_WR_BIT	 ((unsigned)1<<28)
#define DDS_RD_BIT	 ((unsigned)1<<29)
#define DDS_FSK_BIT  ((unsigned)1<<30)
#define DDS_UD_BIT	 ((unsigned)1<<25)

#define  F1_ADD        0x04
#define  F2_ADD        0x0a
#define  FS_ADD        0x1a
#define  CFG_ADD	   0x1d

#define  CLK		 (INT32U)20000000
#define  MUL			(INT32U)15

//写信号
#define  WR()          IO0SET = DDS_WR_BIT;IO0CLR = DDS_WR_BIT;IO0SET = DDS_WR_BIT
//变换频率
#define  UDCLK()       IO1CLR = DDS_UD_BIT;IO1SET = DDS_UD_BIT;IO1CLR = DDS_UD_BIT
//写地址
#define  DDS_ADD(x)    IO0CLR = 0x000001f8;IO0SET = x<<3	   
//写数据
#define  DDS_DATA(x)   IO1CLR = 0x00ff0000;IO1SET = x<<16; WR()

//复位AD9852
AD9852_EXT void RST_AD9852(void);
//写频率控制字
AD9852_EXT void SetFreq(INT8U Add,INT32U Freq) ;
AD9852_EXT void SetMode(INT8U *pCfg) ;
#endif