基于51单片机密码锁制作.doc

#includereg51.h #include intrins.h unsigned int b[7]; unsigned int a[7]={0xee,0xed,0xdd,0xdb,0xbb,0xb7,0x77}; void delay(int i) { int j,k; for(j=i;j0;j--) for(k=125;k0;k--); } void main() { unsigned char temp; int i,j=0,k,n=1,l=1,led; while(1) { P3=0xfe; temp=P3; temp=temp0xf0; if(temp!=0xf0) { delay(10); if(temp!=0xf0) { temp=P3; switch(temp) { case 0xee: b[i++]=0xee; break; } while(temp!=0xf0) { temp=P3; temp=temp0xf0; } } } P3=0xfd; temp=P3; temp=temp0xf0; if(temp!=0xf0) { delay(10); if(temp!=0xf0) { temp=P3; switch(temp) { case 0xed: b[i++]=0xed; break; case 0xdd: b[i++]=0xdd; break; } while(temp!=0xf0) { temp=P3; temp=temp0xf0; } } } P3=0xfb; temp=P3; temp=temp0xf0; if(temp!=0xf0) { delay(10); if(temp!=0xf0) { temp=P3; switch(temp) { case 0xdb: b[i++]=0xdb; break; case 0xbb: b[i++]=0xbb; break; } while(temp!=0xf0) { temp=P3; temp=temp0xf0; } } } P3=0xf7; temp=P3; temp=temp0xf0; if(temp!=0xf0) { delay(10); if(temp!=0xf0) { temp=P3; switch(temp) { case 0xb7: b[i++]=0xb7; break; case 0x77: b[i++]=0x77; break; } while(temp!=0xf0) { temp=P3; temp=temp0xf0; } } } if(b[6]==0x77) { for(i=0;i7;i++) { k=b[i]; if(a[i]==k) j++; } if(j==7) { for(i=0;i2;i++) { P1=0x00; delay(500); P1=0xff; delay(500); }