AD9834 9850波形产生程序

/*****************************************************AD9834波形产生程序*****************************************************/#include#include#includesbit FSYNC_1=P1^0;sbit SDATA_1=P1^1;sbit SCLK_1=P1^2;sbit FSYNC_2=P1^3;sbit SDATA_2=P1^4;sbit SCLK_2=P1^5;#define FCLK 50#define uchar unsigned char#define uint unsigned int#define ulong unsigned long/**************************发送控制字**************************/void Send_Con(uint Con_word){uchar i;FSYNC_1=0;for(i=0;i<16;i++){SDATA_1=Con_word&0x8000;Con_word<<=1;SCLK_1=0;SCLK_1=1;}FSYNC_1=1;}/******************************************************************** ***************初始化函数：------------------------------------------------------------------- 功能：软件位控制，IOUT正弦波，SIGNBITOUT方波，写FREQREG0，写PHASE0 Send_Con(0x2038) 一次性写FREQREG0Send_Con(0x0038) 单独改写FREQREG0的LSBSend_Con(0x1038) 单独改写FREQREG0的MSB------------------------------------------------------------------- 功能：软件位控制，IOUT三角波写FREQREG0，写PHASE0Send_Con(0x2002) 一次性写FREQREG0Send_Con(0x0002) 单独改写FREQREG0的LSBSend_Con(0x1008) 单独改写FREQREG0的MSB**************************** ********************************************************//****************************发送频率字****************************/void Send_Freq(uint Freq_word){uchar i;FSYNC_1=0;for(i=0;i<16;i++){SDATA_1=Freq_word&0x8000;Freq_word<<=1;SCLK_1=0;SCLK_1=1;}FSYNC_1=1;}/*****************************发送相位字注：根据情况可设定入口参数，设置相位*****************************/void Send_Phase(){Send_Con(0xC000); //设置初相位为0}/*******************************************************设置频率值 Freq_value(value)=Freq_data(data)*FCLK/2^282^28=268435456=0x10000000*******************************************************/void main(ulong Freq_value){ulong value1,value2;uint LSB_D,MSB_D;SCLK_1=1;FSYNC_1=1;value1=Freq_value;value2=Freq_value;LSB_D=(value1/0x4000)+0x4000; //写FREQ0 REG 的LSBMSB_D=(value2%0x4000)+0x4000; //写FREQ0 REG 的MSBSend_Con(0x2038); //DDS初始化设置，IOUT正弦波，SIGNBITOUT方波，一次性写FREQREG0Send_Freq(LSB_D);Send_Freq(MSB_D);}#include#includefloat l,m,n,q,z;double k;//-----------------------定义管脚--------------------------------------------------------#define data_OUT P1sbit FQ_UD=P3^0; //AD9850信号更新申请sbit W_CLK=P3^1;sbit FESET="P3"^2; //写控制字时钟unsigned char CON_word[5];//Word data[7] data[6] data[5] data[4] data[3] data[2] data[1] data[0] //W0 Phase b Phase b3 Phase b2 Phase b1 Phase b0 Power Down Con trol Control//W1 Freq-b31 Freq-b30 Freq-b29 Freq-b28 Freq-b27 Freq-b26 Freq-b25 Freq-b24//W2 Freq-b23 Freq-b22 Freq-b21 Freq-b20 Freq-b19 Freq-b18 Freq-b17 F req-b16//W3 Freq-b15 Freq-b14 Freq-b13 Freq-b12 Freq-b11 Freq-b10 Freq-b9 Freq-b8//W4 Freq-b7 Freq-b6 Freq-b5 Freq-b4 Freq-b3 Freq -b2//--------------------------------------------------------------------------------------------------// 函数名称： delay// 入口参数： N// 函数功能：延时子程序，实现(16*N+24)us的延时// 系统采用11.0592MHz的时钟时,延时满足要求,其它情况需要改动//--------------------------------------------------------------------------------------------------// void delay(unsigned int N)// {// int i;//for(i=0;i<N;I++);// }//--------------------------------------------------------------------------------------------------//--------------------------------------------------------------------------------------------------/*******************************************************/void Freq_Adjust(long value_Freq){unsigned int i;long f;unsigned char L4,L3,L2,L1,L0;FQ_UD=0;f="value"_Freq*86;L0=0x28;L4= f&0x000000ff;L3=(f>>8)&0x000000ff;L2=(f>>16)&0x000000ff;L1=(f>>24)&0x000000ff;CON_word[0]=L0;CON_word[4]=L4;CON_word[3]=L3;CON_word[2]=L2;CON_word[1]=L1;FQ_UD=0;W_CLK=0;//delay(0);_nop_(); _nop_(); _nop_(); _nop_(); _nop_();CON_word[0]=CON_word[0]&0xFC; //置工作方式选择位为00for(i=0;i<5;i++){FESET="1";W_CLK=0;data_OUT=CON_word[i]; //送控制字// delay(0);_nop_(); _nop_(); _nop_(); _nop_();_nop_();FESET="0";W_CLK=1; //上升延//delay(0);_nop_(); _nop_(); _nop_();_nop_();_nop_();}FQ_UD=1;}//--------------------------------------------------------------------------------------------------// 函数名称：main// 用户主函数// 函数功能：主函数//--------------------------------------------------------------------------------------------------main(){BEGAIN:LCD_Initial();P2=0XF0;GotoXY(0,0);Print("Please Input :");GotoXY(0,1);Print(" ");m=0;k=0;l=0;//q=5;FQ_UD=0;Freq_Adjust(50000);while(1){while(1){m="keynum"();if(m>=0&&m<=9||m==15||m==14){z="m";Delay1ms(150);break;}}if(m>=0&&m<=9){l++;}if(z==14){goto BEGAIN;}if(z==15){GotoXY(0,1);Print(&TempBuffer[0]); GotoXY(9,1);Print("OK!!");Delay1ms(1000);break;}if(l==1){k=z;}if(l==2){k="k"*10+z;}if(l==3){k="k"*10+z;}if(l==4){k="k"*10+z;}if(l==5){k="k"*10+z;}if(l==6){k="k"*10+z;}if(l==7){k="k"*10+z;}if(l==8){k="k"*10+z;}if(l>8||k>25000000){GotoXY(0,1);Print(" ERROR!! "); Delay1ms(500);goto BEGAIN;}IntToStr(k,&TempBuffer[0],0);GotoXY(0,1);Print(&TempBuffer[0]);P2=0XF0;Delay1ms(150);}FQ_UD=0;Freq_Adjust(k);while(1){GotoXY(0,0);Print("THE PL DISPLAY");IntToStr(k,&TempBuffer[0],0);GotoXY(0,1);Print(&TempBuffer[0]);m="keynum"();if(m==10){ Delay1ms(300) ;if(k>=30000000){k=30000000;}else{ k="k"+1000;}}if(m==11){Delay1ms(300) ;if(k<=0){k=0;}else{k=k-1000;}}if(m==14){goto BEGAIN;}} }。