DDS.rar_AD9851

#include<reg52.h> #define uint unsigned int #define uchar unsigned char sbit WL=P1^0; sbit FQ=P1^1; sbit D0=P0^1; sbit D1=P0^2; sbit D2=P0^3; sbit D7=P0^4; uchar temp,num,n,xiangwei=0,flag=0,p=0,out[]={0,0,0,0,0}; unsigned long m,bujin[]={0,0,0,0,0,0,0}; void delay(uchar i) { while(--i); } uchar keyscan() { num=0; P3=0xfe; temp=P3; temp=temp&0xf0; while(temp!=0xf0) { delay(1); temp=P3; temp=temp&0xf0; while(temp!=0xf0) { temp=P3; switch(temp) { case 0xee:num=1; break; case 0xde:num=2; break; case 0xbe:num=3; break; case 0x7e:num=4; break; } while(temp!=0xf0) { temp=P3; temp=temp&0xf0; } } } P3=0xfd; temp=P3; temp=temp&0xf0; while(temp!=0xf0) { delay(1); temp=P3; temp=temp&0xf0; while(temp!=0xf0) { temp=P3; switch(temp) { case 0xed:num=5; break; case 0xdd:num=6; break; case 0xbd:num=7; break; case 0x7d:num=8; break; } while(temp!=0xf0) { temp=P3; temp=temp&0xf0; } } } P3=0xfb; temp=P3; temp=temp&0xf0; while(temp!=0xf0) { delay(1); temp=P3; temp=temp&0xf0; while(temp!=0xf0) { temp=P3; switch(temp) { case 0xeb:num=9; break; case 0xdb:num=10; break; case 0xbb:num=11; break; case 0x7b:num=12; break; } while(temp!=0xf0) { temp=P3; temp=temp&0xf0; } } } P3=0xf7; temp=P3; temp=temp&0xf0; while(temp!=0xf0) { delay(1); temp=P3; temp=temp&0xf0; while(temp!=0xf0) { temp=P3; switch(temp) { case 0xe7:num=13; break; case 0xd7:num=14; break; case 0xb7:num=15; break; case 0x77:num=16; break; } while(temp!=0xf0) { temp=P3; temp=temp&0xf0; } } } return num; } uchar set() { uchar i,j; m=0,n=0; switch(keyscan()) { case 1 : bujin[0]+=143; break; case 2 : bujin[1]+=1430; break; case 3 : bujin[2]+=14300; break; case 4 : bujin[3]+=143000; break; case 5 : bujin[4]+=1430000; break; case 6 : bujin[5]+=14300000; break; case 7 : bujin[6]+=143000000; break; case 8 : for(i=0;i<7;i++) { bujin[i]=0; } m=0; break; case 9 : xiangwei+=0x80; break; case 10 : xiangwei+=0x40; break; case 11 : xiangwei+=0x20; break; case 12 : xiangwei+=0x10; break; case 13 : xiangwei+=0x08; break; case 14 : if(flag==0) flag=1; else flag=0; break; case 16 : xiangwei=0; n=0; break; } for(j=0;j<7;j++) { m+=bujin[j]; } if((flag==1) && (num==14)) p+=1; else if((flag==0) && (num==14)) p-=1; else n+=(xiangwei+p); out[0]=m; out[1]=m>>8; out[2]=m>>16; out[3]=m>>24; out[4]=n; return 0; } void AD9850_init(void) { WL=0; FQ=0; delay(1); WL=1; delay(1); WL=0; delay(2); FQ=1; delay(2); FQ=0; delay(1); D0=D1=1; D2=0; } void main() { uchar i=0,j=0,k=0,tmp[]={0,0,0,0,0}; AD9850_init(); while(1) { set(); FQ=0; WL=0; if(out[0]!=0||out[1]!=0||out[2]!=0||out[3]!=0||out[4]!=0) { for(j=0;j<5;j++) tmp[j]=out[j]; for(k=0;k<5;k++) { for(i=0;i<8;i++) { delay(1); if(tmp[k]&0x01)D7=1; else D7=0; delay(10); WL=1; tmp[k]>>=1; delay(1); WL=0; } } delay(1); FQ=1; WL=0; delay(2); FQ=0; } } }