STM32的AD9834驱动程序(C语言)-2

这个是自己调试成功的代码，希望给大家带来方便//=========AD9834.h======================///*------------------------------------------------------------------------------------

***********************AD9834驱动程序********************************

***********************STM32固件函数库V2.0*************************

***********************2011.3.29****************************************

------------------------------------------------------------------------------------*/#ifndef__AD9834_H

#define__AD9834_H#include"stm32f10x_lib.h"#defineTriangle_Wave

0x2002

#defineSine_Wave

0x2028/*AD9834晶振频率*/

#defineAD9834_SYSTEM_COLCK

50000000UL/*AD9834控制引脚*/

#defineAD9834_Control_Port

GPIOC

#defineAD9834_FSYNC

GPIO_Pin_6

#defineAD9834_SCLK

GPIO_Pin_7

#defineAD9834_SDATA

GPIO_Pin_8

#defineAD9834_RESET

GPIO_Pin_9#defineAD9834_FSYNC_SET

GPIO_SetBits(AD9834_Control_Port,AD9834_FSYNC)

#defineAD9834_FSYNC_CLR

GPIO_ResetBits(AD9834_Control_Port,AD9834_FSYNC)

#defineAD9834_SCLK_SET

GPIO_SetBits(AD9834_Control_Port,AD9834_SCLK)

#defineAD9834_SCLK_CLR

GPIO_ResetBits(AD9834_Control_Port,AD9834_SCLK)

#defineAD9834_SDATA_SET

GPIO_SetBits(AD9834_Control_Port,AD9834_SDATA)

#defineAD9834_SDATA_CLR

GPIO_ResetBits(AD9834_Control_Port,AD9834_SDATA)

#defineAD9834_RESET_SET

GPIO_SetBits(AD9834_Control_Port,AD9834_RESET)

#defineAD9834_RESET_CLR

GPIO_ResetBits(AD9834_Control_Port,AD9834_RESET)

#defineFREQ_0

0

#defineFREQ_1

1

#defineDB15

0

#defineDB14

0

#defineDB13

B28

#defineDB12

HLB

#defineDB11

FSEL

#defineDB10

PSEL

#defineDB9

PIN_SW

#defineDB8

RESET

#defineDB7

SLEEP1

#defineDB6

SLEEP12

#defineDB5

OPBITEN

#defineDB4

SIGN_PIB

#defineDB3

DIV2

#defineDB2

0

#defineDB1

MODE

#defineDB0

0#defineCONTROL_REGISTER

(DB15<<15)|(DB14<<14)|(DB13<<13)|(DB12<<12)|(DB11<<11)|(DB10<<10)\

|(DB9<<9)|(DB8<<8)|(DB7<<7)|(DB6<<6)|(DB5<<5)|(DB4<<4)|(DB3<<3)|(DB2<<2)|(DB1<<1)|(DB0<<0)/*AD9834函数声明*/

externvoidAD9834_Write_16Bits(unsignedintdata);

//写一个字到AD9834

externvoidAD9834_Select_Wave(unsignedintinitdata);//选择输出波形

externvoidInit_AD9834();//初始化配置

externvoidAD9834_Set_Freq(unsignedcharfreq_number,unsignedlongfreq);//选择输出寄存器和输出频率值#endif/*AD9834_H*///================================================================////====================AD9834.c======================//#include"stm32f10x_lib.h"

#include"AD9834.h"

/****************************************************************

函数名称:AD9834_Write_16Bits

功

能:向AD9834写入16为数据

参

数:data--

要写入的16位数据

返回值

:无

*****************************************************************/

voidAD9834_Write_16Bits(unsignedintdata)

{

unsignedchari=0;

AD9834_SCLK_SET;

AD9834_FSYNC_CLR;

for(i=0;i<16;i++)

{

if(data&0x8000)

AD9834_SDATA_SET;

else

AD9834_SDATA_CLR;

AD9834_SCLK_CLR;

data<<=1;

AD9834_SCLK_SET;

}

AD9834_FSYNC_SET;

}/***********************************************************************************

函数名称：AD9834_Select_Wave

功

能：软件为控制，

--------------------------------------------------

IOUT正弦波，SIGNBITOUT方波，写FREQREG0，写PHASE0

ad9834_write_16bit(0x2028)

一次性写FREQREG0

ad9834_write_16bit(0x0038)

单独改写FREQREG0的LSB

ad9834_write_16bit(0x1038)

单独改写FREQREG0的MSB

--------------------------------------------------

IOUT三角波，写PHASE0

ad9834_write_16bit(0x2002)

一次性写FREQREG0

ad9834_write_16bit(0x0002)

单独改写FREQREG0的LSB

ad9834_write_16bit(0x1008)

单独改写FREQREG0的MSB

参

数：initdata--要输入的命令

返回值

：无

************************************************************************************/

voidAD9834_Select_Wave(unsignedintinitdata)

{

AD9834_FSYNC_SET;

AD9834_SCLK_SET;

AD9834_RESET_SET;

AD9834_RESET_SET;

AD9834_RESET_CLR;

AD9834_Write_16Bits(initdata);

}/****************************************************************

函数名称:Init_AD9834

功

能:初始化AD9834控制引脚

参

数:无

返回值

:无

*****************************************************************/

voidInit_AD9834()

{

GPIO_InitTypeDefGPIO_InitStructure;

GPIO_InitStructure.GPIO_Pin=AD9834_FSYNC|AD9834_SCLK|AD9834_SDATA|AD9834_RESET;

GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;

GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;

GPIO_Init(AD9834_Control_Port,&GPIO_InitStructure);

}/****************************************************************

函数名称:AD9834_Set_Freq

功

能:设置频率值

参

数:freq_number--要写入的平率寄存器(FREQ_0或FREQ_1)

freq--频率值(Freq_value(value)=Freq_data(data)*FCLK/2^28)

返回值

:无

*****************************************************************/

voidAD9834_Set_Freq(unsignedcharfreq_number,unsignedlongfreq)

{

unsignedlongFREQREG=(unsignedlong)(268435456.0/AD9834_SYSTEM_COLCK*freq);

unsignedintFREQREG_LSB_14BIT=(unsignedint)FREQREG;

unsignedintFREQREG_MSB_14BIT=(unsignedint)(FREQREG>>14);

if(freq_number==FREQ_0)

{

FREQREG_LSB_14BIT&=~(1U<<15);

FREQREG_LSB_14BIT|=1<<14;

FREQREG_MSB_14BIT&=~(1U<<15);

FREQREG_MSB_14BIT|=1<<14;

}

else

{

FREQREG_LSB_14BIT&=~(1<<14);

FREQREG_LSB_14BIT|=1U<<15;

FREQREG_MSB_14BIT&=~(1<<14);

FREQREG