stm32f4xx-ad9854并行驱动

通过寄存器配置IO口并行配置a9854的信号输出频率

AD9854_SetSine(输出频率, 输出幅度);

调用格式：

AD9854_Init();
AD9854_SetSine(10000000.0, 4095);	// 输出10MHz正弦波,幅度设置为最大(0~4095)

ad9854.h

#ifndef __AD9854_H__
#define __AD9854_H__ 

#include <stdint.h>
#include "stm32f4xx_hal.h"

#define BITBAND(addr, bitnum)            ((addr & 0xF0000000)+0x2000000+((addr &0xFFFFF)<<5)+(bitnum<<2)) 
#define MEM_ADDR(addr)                   *((volatile unsigned long  *)(addr)) 
#define BIT_ADDR(addr, bitnum)           MEM_ADDR(BITBAND(addr, bitnum)) 

#define GPIOA_ODR_Addr    (GPIOA_BASE+0x14)    // F4的ODR偏移是0x14
#define GPIOB_ODR_Addr    (GPIOB_BASE+0x14)    
#define GPIOC_ODR_Addr    (GPIOC_BASE+0x14)    
#define GPIOD_ODR_Addr    (GPIOD_BASE+0x14)    
#define GPIOE_ODR_Addr    (GPIOE_BASE+0x14)    
#define GPIOF_ODR_Addr    (GPIOF_BASE+0x14)    
#define GPIOG_ODR_Addr    (GPIOG_BASE+0x14)    
#define GPIOH_ODR_Addr    (GPIOH_BASE+0x14)    
#define GPIOI_ODR_Addr    (GPIOI_BASE+0x14)    

#define GPIOA_IDR_Addr    (GPIOA_BASE+0x10)    // F4的IDR偏移是0x10
#define GPIOB_IDR_Addr    (GPIOB_BASE+0x10)    
#define GPIOC_IDR_Addr    (GPIOC_BASE+0x10)    
#define GPIOD_IDR_Addr    (GPIOD_BASE+0x10)    
#define GPIOE_IDR_Addr    (GPIOE_BASE+0x10)    
#define GPIOF_IDR_Addr    (GPIOF_BASE+0x10)    
#define GPIOG_IDR_Addr    (GPIOG_BASE+0x10)    
#define GPIOH_IDR_Addr    (GPIOH_BASE+0x10)    
#define GPIOI_IDR_Addr    (GPIOI_BASE+0x10)   

#define PAout(n)   BIT_ADDR(GPIOA_ODR_Addr,n)  //输出
#define PAin(n)    BIT_ADDR(GPIOA_IDR_Addr,n)  //输入

#define PBout(n)   BIT_ADDR(GPIOB_ODR_Addr,n)  //输出 
#define PBin(n)    BIT_ADDR(GPIOB_IDR_Addr,n)  //输入 

#define PCout(n)   BIT_ADDR(GPIOC_ODR_Addr,n)  //输出 
#define PCin(n)    BIT_ADDR(GPIOC_IDR_Addr,n)  //输入 

#define PDout(n)   BIT_ADDR(GPIOD_ODR_Addr,n)  //输出 
#define PDin(n)    BIT_ADDR(GPIOD_IDR_Addr,n)  //输入 

#define PEout(n)   BIT_ADDR(GPIOE_ODR_Addr,n)  //输出 
#define PEin(n)    BIT_ADDR(GPIOE_IDR_Addr,n)  //输入

#define PFout(n)   BIT_ADDR(GPIOF_ODR_Addr,n)  //输出 
#define PFin(n)    BIT_ADDR(GPIOF_IDR_Addr,n)  //输入

#define PGout(n)   BIT_ADDR(GPIOG_ODR_Addr,n)  //输出 
#define PGin(n)    BIT_ADDR(GPIOG_IDR_Addr,n)  //输入


#define AD9854_RST    PEout(2)   //AD9854复位端口
#define AD9854_UDCLK  PCout(1)   //AD9854更新时钟
#define AD9854_WR     PCout(2)  //AD9854写使能，低有效
#define AD9854_RD     PCout(0)   //AD9854读使能，低有效

/****************/
// 未使用
#define AD9854_OSK    PAout(2)   //AD9854 OSK控制端
#define AD9854_FDATA  PAout(10)   //AD9854 FSK,PSK控制
/****************/

/****************/
// 未使用
#define AD9854_DataBus GPIOC->BSRR
#define AD9854_AdrBus  GPIOC->BSRR
/****************/

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

void AD9854_Init(void);						  
void AD9854_SetSine(ulong Freq,uint Shape);	  
void AD9854_SetSine_double(double Freq,uint Shape);
void AD9854_InitFSK(void);				
void AD9854_SetFSK(ulong Freq1,ulong Freq2);					  
void AD9854_InitBPSK(void);					  
void AD9854_SetBPSK(uint Phase1,uint Phase2);					
void AD9854_InitOSK(void);					 
void AD9854_SetOSK(uchar RateShape);					  
void AD9854_InitAM(void);					 
void AD9854_SetAM(uint Shape);					
void AD9854_InitRFSK(void);					 
void AD9854_SetRFSK(ulong Freq_Low,ulong Freq_High,ulong Freq_Up_Down,ulong FreRate);		

#endif

ad9854.C

#include "ad9854.h"

// AD9854数据总线定义
#define AD9854_D0     PBout(4)
#define AD9854_D1     PBout(6)
#define AD9854_D2     PBout(8)
#define AD9854_D3     PEout(0)
#define AD9854_D4     PBout(5)
#define AD9854_D5     PBout(7)
#define AD9854_D6     PBout(9)
#define AD9854_D7     PEout(1)

// AD9854地址总线定义
#define AD9854_A0     PAout(8)
#define AD9854_A1     PAout(15)
#define AD9854_A2     PDout(4)
#define AD9854_A3     PDout(5)
#define AD9854_A4     PDout(6)
#define AD9854_A5     PDout(7)

static void set_data_bus(uint8_t data) {
    AD9854_D0 = (data & 0x01) ? 1 : 0;
    AD9854_D1 = (data & 0x02) ? 1 : 0;
    AD9854_D2 = (data & 0x04) ? 1 : 0;
    AD9854_D3 = (data & 0x08) ? 1 : 0;
    AD9854_D4 = (data & 0x10) ? 1 : 0;
    AD9854_D5 = (data & 0x20) ? 1 : 0;
    AD9854_D6 = (data & 0x40) ? 1 : 0;
    AD9854_D7 = (data & 0x80) ? 1 : 0;
}

static void set_addr_bus(uint8_t addr) {
    AD9854_A0 = (addr & 0x01) ? 1 : 0;
    AD9854_A1 = (addr & 0x02) ? 1 : 0;
    AD9854_A2 = (addr & 0x04) ? 1 : 0;
    AD9854_A3 = (addr & 0x08) ? 1 : 0;
    AD9854_A4 = (addr & 0x10) ? 1 : 0;
    AD9854_A5 = (addr & 0x20) ? 1 : 0;
}


uchar FreqWord[6];				 //6个字节频率控制字

//**********************以下为系统时钟以及其相关变量设置**************************

/* 
      此处根据自己的需要设置系统时钟以及与其相关的因子，一次需且只需开启一个   
      CLK_Set为时钟倍频设置，可设置4~20倍倍频，但最大不能超过300MHZ
      Freq_mult_ulong和Freq_mult_doulle均为2的48次方除以系统时钟，一个为长整形，一个为双精度型
*/

/*
#define      CLK_Set            4
const ulong  Freq_mult_ulong  = 3518437;
const double Freq_mult_doulle = 3518437.2088832;
*/

/*
#define      CLK_Set            5
const ulong  Freq_mult_ulong  = 2814750;
const double Freq_mult_doulle = 2814749.76710656;
*/

 /*
#define      CLK_Set            6
const ulong  Freq_mult_ulong  = 2345625;
const double Freq_mult_doulle = 2345624.80592213;
  */

/*
#define      CLK_Set            7
const ulong  Freq_mult_ulong  = 2010536;
const double Freq_mult_doulle = 2010535.54793326;
*/

/*
#define      CLK_Set            8
const ulong  Freq_mult_ulong  = 1759219;
const double Freq_mult_doulle = 1759218.6044416;
*/

/*
#define      CLK_Set            9
const ulong  Freq_mult_ulong  = 1563750;
const double Freq_mult_doulle = 1563749.87061476;
*/

/*
#define      CLK_Set            10
const ulong  Freq_mult_ulong  = 1407375;
const double Freq_mult_doulle = 1407374.88355328;
*/

/*
#define      CLK_Set            11
const ulong  Freq_mult_ulong  = 1279432;
const double Freq_mult_doulle = 1279431.712321164;
*/


#define      CLK_Set            12
const ulong  Freq_mult_ulong  = 1172812;
const double Freq_mult_doulle = 1172812.402961067;


/*
#define      CLK_Set            13
const ulong  Freq_mult_ulong  = 1082596;
const double Freq_mult_doulle = 1082596.064271754;
*/

/*
#define      CLK_Set            14
const ulong  Freq_mult_ulong  = 1005268;
const double Freq_mult_doulle = 1005267.773966629;
*/

/*
#define      CLK_Set            15
const ulong  Freq_mult_ulong  = 938250;
const double Freq_mult_doulle = 938249.9223688533;

 */
//**************************修改硬件时要修改的部分********************************



//**************************以下部分为函数定义********************************


//====================================================================================
//函数名称:void AD9854_WR_Byte(uchar addr,uchar dat)
//函数功能:AD9854并行口写入数据
//入口参数:addr     6位地址
//         dat      写入的数据
//出口参数:无
//====================================================================================
	uint32_t dat1,dat2;

static void AD9854_WR_Byte(uint32_t addr,uint32_t dat)
{
//	dat1= dat|(addr<<8);
//	
//	AD9854_AdrBus=(dat1&0x3fff)|((dat1^0x3fff)<<16);
	set_addr_bus(addr);
	set_data_bus(dat);
	
//	AD9854_AdrBus  = ((addr&0x3f)<<8) | ((addr^0x3f)<<(16+8));
//	AD9854_DataBus = dat|(dat^0xff)<<16;
//	dat1  = ((addr&0x3f)<<8) | ((addr^0x3f)<<(16+8));
//	dat2 = (dat1&0x3fff)|((dat1^0x3fff)<<16);
	AD9854_WR      = 0;
	AD9854_WR      = 1;
}

//====================================================================================
//函数名称:void AD9854_Init(void)
//函数功能:AD9854初始化
//入口参数:无
//出口参数:无
//====================================================================================
void AD9854_Init(void) {
	AD9854_WR=1;//将读、写控制端口设为无效
    AD9854_RD=1;
    AD9854_UDCLK=0;
    AD9854_RST=1;                 //复位AD9854
    AD9854_RST=0;

	AD9854_WR_Byte(0x1d,0x00);	           //关闭比较器
	AD9854_WR_Byte(0x1e,CLK_Set);	   //设置系统时钟倍频            
	AD9854_WR_Byte(0x1f,0x00);	   //设置系统为模式0，由外部更新
	AD9854_WR_Byte(0x20,0x60);	   //设置为可调节幅度，取消插值补偿

	AD9854_UDCLK=1;               //更新AD9854输出
    AD9854_UDCLK=0;
}
//====================================================================================
//函数名称:void Freq_convert(long Freq)
//函数功能:正弦信号频率数据转换
//入口参数:Freq   需要转换的频率，取值从0~SYSCLK/2
//出口参数:无   但是影响全局变量FreqWord[6]的值
//说明：   该算法位多字节相乘算法，有公式FTW = (Desired Output Frequency × 2N)/SYSCLK
//         得到该算法，其中N=48，Desired Output Frequency 为所需要的频率，即Freq，SYSCLK
//         为可编程的系统时钟，FTW为48Bit的频率控制字，即FreqWord[6]
//====================================================================================
static void Freq_convert(long Freq)   
{
    ulong FreqBuf;
    ulong Temp=Freq_mult_ulong;   	       

	uchar Array_Freq[4];			     //将输入频率因子分为四个字节
	Array_Freq[0]=(uchar)Freq;
	Array_Freq[1]=(uchar)(Freq>>8);
	Array_Freq[2]=(uchar)(Freq>>16);
	Array_Freq[3]=(uchar)(Freq>>24);

	FreqBuf=Temp*Array_Freq[0];                  
    FreqWord[0]=FreqBuf;    
    FreqBuf>>=8;

    FreqBuf+=(Temp*Array_Freq[1]);
    FreqWord[1]=FreqBuf;
    FreqBuf>>=8;

    FreqBuf+=(Temp*Array_Freq[2]);
    FreqWord[2]=FreqBuf;
    FreqBuf>>=8;

	FreqBuf+=(Temp*Array_Freq[3]);
    FreqWord[3]=FreqBuf;
    FreqBuf>>=8;

    FreqWord[4]=FreqBuf;
    FreqWord[5]=FreqBuf>>8;			
}  

//====================================================================================
//函数名称:void AD9854_SetSine(ulong Freq,uint Shape)
//函数功能:AD9854正弦波产生程序
//入口参数:Freq   频率设置，取值范围为0~(1/2)*SYSCLK
//         Shape  幅度设置. 为12 Bit,取值范围为(0~4095) ,取值越大,幅度越大 
//出口参数:无
//====================================================================================
void AD9854_SetSine(ulong Freq,uint Shape)
{
	uchar count;
	uchar Adress;

	Adress = 0x04;                        //选择频率控制字地址的初值

	Freq_convert(Freq);		           //频率转换

	for(count=6;count>0;)	          //写入6字节的频率控制字  
    {
		AD9854_WR_Byte(Adress++,FreqWord[--count]);
    }
	
	AD9854_WR_Byte(0x21,Shape>>8);	  //设置I通道幅度
	AD9854_WR_Byte(0x22,(uchar)(Shape&0xff));
	
	AD9854_WR_Byte(0x23,Shape>>8);	  //设置Q通道幅度
	AD9854_WR_Byte(0x24,(uchar)(Shape&0xff));

	AD9854_UDCLK=1;                    //更新AD9854输出
    AD9854_UDCLK=0;
}

//====================================================================================
//函数名称:void Freq_doublt_convert(double Freq)
//函数功能:正弦信号频率数据转换
//入口参数:Freq   需要转换的频率，取值从0~SYSCLK/2
//出口参数:无   但是影响全局变量FreqWord[6]的值
//说明：   有公式FTW = (Desired Output Frequency × 2N)/SYSCLK得到该函数，
//         其中N=48，Desired Output Frequency 为所需要的频率，即Freq，SYSCLK
//         为可编程的系统时钟，FTW为48Bit的频率控制字，即FreqWord[6]
//注意：   该函数与上面函数的区别为该函数的入口参数为double，可使信号的频率更精确
//         建议在100HZ以下用本函数，在高于100HZ的情况下用函数void Freq_convert(long Freq)
//====================================================================================
static void Freq_double_convert(double Freq)   
{
	ulong Low32;
	uint  High16;
    double Temp=Freq_mult_doulle;   	            //23ca99为2的48次方除以120M
	Freq*=(double)(Temp);
//	1 0000 0000 0000 0000 0000 0000 0000 0000 = 4294967295
	High16 =(int)(Freq/4294967295);                  //2^32 = 4294967295
	Freq -= (double)High16*4294967295;
	Low32 = (ulong)Freq;

    FreqWord[0]=Low32;	     
    FreqWord[1]=Low32>>8;
    FreqWord[2]=Low32>>16;
    FreqWord[3]=Low32>>24;
    FreqWord[4]=High16;
    FreqWord[5]=High16>>8;			
} 
//====================================================================================
//函数名称:void AD9854_SetSine_double(double Freq,uint Shape)
//函数功能:AD9854正弦波产生程序
//入口参数:Freq   频率设置，取值范围为0~1/2*SYSCLK
//         Shape  幅度设置. 为12 Bit,取值范围为(0~4095) 
//出口参数:无
//====================================================================================
void AD9854_SetSine_double(double Freq,uint Shape)
{
	uchar count=0;
	uchar Adress;

	Adress=0x04;						     //选择频率控制字1地址的初值

	Freq_double_convert(Freq);		           //频率转换
	 
	for(count=6;count>0;)	                    //写入6字节的频率控制字  
    {
		AD9854_WR_Byte(Adress++,FreqWord[--count]);
    }
	
	AD9854_WR_Byte(0x21,Shape>>8);	  //设置I通道幅度
	AD9854_WR_Byte(0x22,(uchar)(Shape&0xff));
	
	AD9854_WR_Byte(0x23,Shape>>8);	  //设置Q通道幅度
	AD9854_WR_Byte(0x24,(uchar)(Shape&0xff));

	AD9854_UDCLK=1;                    //更新AD9854输出
    AD9854_UDCLK=0;
}

//====================================================================================
//函数名称:void AD9854_InitFSK(void)
//函数功能:AD9854的FSK初始化
//入口参数:无
//出口参数:无
//====================================================================================
void AD9854_InitFSK(void)
{
	AD9854_WR=1;                        //将读、写控制端口设为无效
    AD9854_RD=1;
    AD9854_UDCLK=0;
    AD9854_RST=1;                        //复位AD9854
    AD9854_RST=0;	

	AD9854_WR_Byte(0x1d,0x00);	       //关闭比较器
	AD9854_WR_Byte(0x1e,CLK_Set);	   //设置系统时钟倍频
	AD9854_WR_Byte(0x1f,0x02);	       //设置系统为模式1，由外部更新
	AD9854_WR_Byte(0x20,0x60);	      //设置为可调节幅度，取消插值补偿

	AD9854_UDCLK=1;                  //更新AD9854输出
    AD9854_UDCLK=0;
}

//====================================================================================
//函数名称:void AD9854_SetFSK(ulong Freq1,ulong Freq2)
//函数功能:AD9854的FSK设置
//入口参数:Freq1   FSK频率1
//         Freq2   FSK频率2
//出口参数:无
//====================================================================================
void AD9854_SetFSK(ulong Freq1,ulong Freq2)
{
    uchar count=6;
	uchar Adress1,Adress2;

	const uint Shape=4000;	      //幅度设置. 为12 Bit,取值范围为(0~4095)
	
	Adress1=0x04;				 //选择频率控制字1地址的初值
	Adress2=0x0a;				 //选择频率控制字2地址的初值
	
	Freq_convert(Freq1);               //频率转换1
	
	for(count=6;count>0;)	          //写入6字节的频率控制字  
    {
		AD9854_WR_Byte(Adress1++,FreqWord[--count]);
    }
	
	Freq_convert(Freq2);               //频率转换2

	for(count=6;count>0;)	          //写入6字节的频率控制字  
    {
		AD9854_WR_Byte(Adress2++,FreqWord[--count]);
    }

	AD9854_WR_Byte(0x21,Shape>>8);	      //设置I通道幅度
	AD9854_WR_Byte(0x22,(uchar)(Shape&0xff));
	
	AD9854_WR_Byte(0x23,Shape>>8);	     //设置Q通道幅度
	AD9854_WR_Byte(0x24,(uchar)(Shape&0xff));

	AD9854_UDCLK=1;                    //更新AD9854输出
    AD9854_UDCLK=0;		
}

//====================================================================================
//函数名称:void AD9854_InitBPSK(void)
//函数功能:AD9854的BPSK初始化
//入口参数:无
//出口参数:无
//====================================================================================
void AD9854_InitBPSK(void)
{
	AD9854_WR=1;                    //将读、写控制端口设为无效
    AD9854_RD=1;
    AD9854_UDCLK=0;
    AD9854_RST=1;                   //复位AD9854
    AD9854_RST=0;

	AD9854_WR_Byte(0x1d,0x00);	       //打开比较器，输出方波
	AD9854_WR_Byte(0x1e,CLK_Set);	   //设置系统时钟倍频
	AD9854_WR_Byte(0x1f,0x08);	      //设置系统为模式4，由外部更新
	AD9854_WR_Byte(0x20,0x60);	      //设置为可调节幅度，取消插值补偿

	AD9854_UDCLK=1;                //更新AD9854输出
    AD9854_UDCLK=0;
}

//====================================================================================
//函数名称:void AD9854_SetBPSK(uint Phase1,uint Phase2)
//函数功能:AD9854的BPSK设置
//入口参数:Phase1   调制相位1
//         Phase2	调制相位2
//出口参数:无
//说明：   相位为14Bit，取值从0~16383，建议在用本函数的时候将Phase1设置为0，
//         将Phase1设置为8192，180°相位
//====================================================================================
void AD9854_SetBPSK(uint Phase1,uint Phase2)
{
	uchar count;

	const ulong Freq=60000;
    const uint Shape=4000;

	uchar Adress;
	Adress=0x04;                           //选择频率控制字1地址的初值

	AD9854_WR_Byte(0x00,Phase1>>8);	           //设置相位1
	AD9854_WR_Byte(0x01,(uchar)(Phase1&0xff));
	
	AD9854_WR_Byte(0x02,Phase2>>8);	          //设置相位2
	AD9854_WR_Byte(0x03,(uchar)(Phase2&0xff));

	Freq_convert(Freq);                            //频率转换

	for(count=6;count>0;)	                         //写入6字节的频率控制字  
    {
		AD9854_WR_Byte(Adress++,FreqWord[--count]);
    }

	AD9854_WR_Byte(0x21,Shape>>8);	                  //设置I通道幅度
	AD9854_WR_Byte(0x22,(uchar)(Shape&0xff));
	
	AD9854_WR_Byte(0x23,Shape>>8);	               //设置Q通道幅度
	AD9854_WR_Byte(0x24,(uchar)(Shape&0xff));

	AD9854_UDCLK=1;                                //更新AD9854输出
    AD9854_UDCLK=0;	
}

//====================================================================================
//函数名称:void AD9854_InitOSK(void)
//函数功能:AD9854的OSK初始化
//入口参数:无
//出口参数:无
//====================================================================================
void AD9854_InitOSK(void)
{
	AD9854_WR=1;                           //将读、写控制端口设为无效
	AD9854_RD=1;
	AD9854_UDCLK=0;
	AD9854_RST=1;                          //复位AD9854
	AD9854_RST=0;

    AD9854_WR_Byte(0x1d,0x00);	           //关闭比较器
	AD9854_WR_Byte(0x1e,CLK_Set);	       //设置系统时钟倍频
	AD9854_WR_Byte(0x1f,0x00);	           //设置系统为模式0，由外部更新
	AD9854_WR_Byte(0x20,0x70);	           //设置为可调节幅度，取消插值补偿,通断整形内部控制

	AD9854_UDCLK=1;                        //更新AD9854输出
	AD9854_UDCLK=0;
}

//====================================================================================
//函数名称:void AD9854_SetOSK(uchar RateShape)
//函数功能:AD9854的OSK设置
//入口参数: RateShape    OSK斜率,取值为4~255，小于4则无效
//出口参数:无
//====================================================================================
void AD9854_SetOSK(uchar RateShape)
{
	uchar count;

	const ulong Freq=60000;			 //设置载频
  const uint  Shape=4000;			//幅度设置. 为12 Bit,取值范围为(0~4095)

	uchar Adress;
	Adress=0x04;               //选择频率控制字地址的初值

	Freq_convert(Freq);                       //频率转换

	for(count=6;count>0;)	                         //写入6字节的频率控制字  
    {
		AD9854_WR_Byte(Adress++,FreqWord[--count]);
    }

	AD9854_WR_Byte(0x21,Shape>>8);	                  //设置I通道幅度
	AD9854_WR_Byte(0x22,(uchar)(Shape&0xff));
	
	AD9854_WR_Byte(0x23,Shape>>8);	                  //设置Q通道幅度
	AD9854_WR_Byte(0x24,(uchar)(Shape&0xff));  	 


    AD9854_WR_Byte(0x25,RateShape);				       //设置OSK斜率

	AD9854_UDCLK=1;                                //更新AD9854输出
    AD9854_UDCLK=0;	
}

//====================================================================================
//函数名称:void AD9854_InitAM(void)
//函数功能:AD9854的AM初始化
//入口参数:无
//出口参数:无
//====================================================================================
void AD9854_InitAM(void)
{
	uchar count;

	const ulong Freq=60000;			 //设置载频

	uchar  Adress;
	Adress=0x04;      //选择频率控制字地址的初值
	
    AD9854_WR=1;    //将读、写控制端口设为无效
    AD9854_RD=1;
    AD9854_UDCLK=0;
    AD9854_RST=1;     //复位AD9854
    AD9854_RST=0;

	AD9854_WR_Byte(0x1d,0x00);	                  //关闭比较器
	AD9854_WR_Byte(0x1e,CLK_Set);	             //设置系统时钟倍频
	AD9854_WR_Byte(0x1f,0x00);	                 //设置系统为模式0，由外部更新
	AD9854_WR_Byte(0x20,0x60);	                  //设置为可调节幅度，取消插值补偿

	Freq_convert(Freq);                            //频率转换

	for(count=6;count>0;)	                         //写入6字节的频率控制字  
    {
		AD9854_WR_Byte(Adress++,FreqWord[--count]);
    }

	AD9854_UDCLK=1;                             //更新AD9854输出
    AD9854_UDCLK=0;
}

//====================================================================================
//函数名称:void AD9854_SetAM(uchar Shape)
//函数功能:AD9854的AM设置
//入口参数:Shape   12Bit幅度,取值从0~4095   
//出口参数:无
//====================================================================================
void AD9854_SetAM(uint Shape)
{
	AD9854_WR_Byte(0x21,Shape>>8);	                  //设置I通道幅度
	AD9854_WR_Byte(0x22,(uchar)(Shape&0xff));
	
	AD9854_WR_Byte(0x23,Shape>>8);	                  //设置Q通道幅度
	AD9854_WR_Byte(0x24,(uchar)(Shape&0xff));

	AD9854_UDCLK=1;                                   //更新AD9854输出
    AD9854_UDCLK=0;			
}

//====================================================================================
//函数名称:void AD9854_InitRFSK(void)
//函数功能:AD9854的RFSK初始化
//入口参数:无
//出口参数:无
//====================================================================================
void AD9854_InitRFSK(void)
{
	AD9854_WR=1;                      //将读、写控制端口设为无效
    AD9854_RD=1;
    AD9854_UDCLK=0;
    AD9854_RST=1;                     //复位AD9854
    AD9854_RST=0;
	
	AD9854_WR_Byte(0x1d,0x00);	       //关闭比较器
	AD9854_WR_Byte(0x1e,CLK_Set);	   //设置系统时钟倍频
	AD9854_WR_Byte(0x1f,0x24);	        //设置系统为模式2，由外部更新,使能三角波扫频功能
	AD9854_WR_Byte(0x20,0x60);	        //设置为可调节幅度，取消插值补偿	

	AD9854_UDCLK=1;                   //更新AD9854输出
    AD9854_UDCLK=0;
}

//====================================================================================
//函数名称:void AD9854_SetRFSK(void)
//函数功能:AD9854的RFSK设置
//入口参数:Freq_Low          RFSK低频率	   48Bit
//         Freq_High         RFSK高频率	   48Bit
//         Freq_Up_Down		 步进频率	   48Bit
//		   FreRate           斜率时钟控制  20Bit
//出口参数:无
//注：     每两个脉冲之间的时间周期用下式表示（FreRate +1）*（System Clock ），一个脉冲,
//         频率 上升或者下降 一个步进频率
//====================================================================================
void AD9854_SetRFSK(ulong Freq_Low,ulong Freq_High,ulong Freq_Up_Down,ulong FreRate)
{
	uchar count=6;
	uchar Adress1,Adress2,Adress3;
    const uint  Shape=4000;			   //幅度设置. 为12 Bit,取值范围为(0~4095)

	Adress1=0x04;		     //选择频率控制字地址的初值 
	Adress2=0x0a;
	Adress3=0x10;

	Freq_convert(Freq_Low);                             //频率1转换

	for(count=6;count>0;)	                         //写入6字节的频率控制字  
    {
		AD9854_WR_Byte(Adress1++,FreqWord[--count]);
    }

	Freq_convert(Freq_High);                             //频率2转换

	for(count=6;count>0;)	                         //写入6字节的频率控制字  
    {
		AD9854_WR_Byte(Adress2++,FreqWord[--count]);
    }

	Freq_convert(Freq_Up_Down);                             //步进频率转换

	for(count=6;count>0;)	                               //写入6字节的频率控制字  
    {
		AD9854_WR_Byte(Adress3++,FreqWord[--count]);
    }

	AD9854_WR_Byte(0x1a,(uchar)((FreRate>>16)&0x0f));				   //设置斜升速率
	AD9854_WR_Byte(0x1b,(uchar)(FreRate>>8));
	AD9854_WR_Byte(0x1c,(uchar)FreRate);				    

	AD9854_WR_Byte(0x21,Shape>>8);	                  //设置I通道幅度
	AD9854_WR_Byte(0x22,(uchar)(Shape&0xff));
	
	AD9854_WR_Byte(0x23,Shape>>8);	                  //设置Q通道幅度
	AD9854_WR_Byte(0x24,(uchar)(Shape&0xff));

	AD9854_UDCLK=1;                                //更新AD9854输出
    AD9854_UDCLK=0;	
}