Rizky20
Newbie level 4
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i have watching this video (https://www.youtube.com/watch?v=05imB2OFlVI) , but this video don't tell me about programming device (AT89C51). can someone tell me about the step for make its hex file on keil uvision (4) ? :smile:
this is its code :
this is its code :
Code C - [expand] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 #include<reg51.h> // header file sbit p=P3^0; // to increase hours sbit q=P3^1; // to decrease minutes sbit r=P3^2; // to decrease hours sbit l=P3^4; // to buzzer to indicate hour sbit bu=P3^3; // to increase minutes sbit t=P3^5; // to increase date sbit u=P3^6; // to decrease date sbit w=P3^7; // to increase month sbit rs=P2^1; // LCD command pin for select the resistor inside the lcd sbit rw=P2^2; // LCD command pin for write the information on lcd sbit en=P2^3; // LCD command pin used to latch information presented to it’s data pins sfr lcddata=0×90; // P2= LCD data pin /************************************DELAY FUNCTION************************************************/ void delay(unsigned char n) { unsigned char i,j; for(i=0;i<n;i++) for(j=0;j<125;j++); } /*********************************LCD COMMAND FUNCTION********************************************/ void command(unsigned char s) { lcddata=s; //put the value on pin rs=0; rw=0; en=1; //strobe the enable pin delay(40); en=0; } /***************************************LCD DISPLAY FUNCTION****************************************/ void lcddisplaydata(unsigned char s) { lcddata=s; //put the value on pin rs=1; rw=0; en=1; //strobe the enable pin delay(40); en=0; } /***************************************MAIN program************************************************/ void main() { int h,m,s,y,mo,d,y1,y2,y3,y4,mo1,mo2,d1,d2,h1,h2,m1,m2,s1,s2,i,j,k; unsigned char array[]={’0′,’1′,’2′,’3′,’4′,’5′,’6′,’7′,’8′,’9′}; command(0×38); // LCD command code for 2 lines and 5*7 matrix command(0x0c); command(0×06); // LCD command code for increment cursors(shift cursor to right) while(1) { y=2012; //starting from year 2012 while(y>=2012) { for(mo=1;mo<=12;mo++) { if(mo==1) //condition for month january { d=31; } else if(mo==2) //condition for month february { if((y%4)==0) //condition for leap year { d=29; } else { d=28; } } else if(mo==3) //condition for month march { d=31; } else if(mo==4) //condition for month april { d=30; } else if(mo==5) //condition for month may { d=31; } else if(mo==6) //condition for month june { d=30; } else if(mo==7) //condition for month july { d=31; } else if(mo==8) //condition for month august { d=31; } else if(mo==9) //condition for month september { d=30; } else if(mo==10) //condition for month october { d=31; } else if(mo==11) //condition for month november { d=30; } else //condition for month december { d=31; } for(i=1;i<=d;i++) { for(h=0;h<=23;h++) //condition for hours in a day { for(m=0;m<=59;m++) //condition for minutes in a hour { for(s=0;s<=59;s++) //condition for second in minute { y1=y/1000; j=y%1000; //code for disply year y2=j/100; k=j%100; y3=k/10; y4=k%10; mo1=mo/10; //code for display month mo2=mo%10; d1=i/10; d2=i%10; //code for display day h1=h/10; h2=h%10; // code for display hour m1=m/10; //code for display minute m2=m%10 ; s1=s/10; //code for disply second s2=s%10; command(0×80); // LCD command for first position of first line lcddisplaydata(array[d1]); lcddisplaydata(array[d2]); command(0×84); // LCD command for fifth position of first line lcddisplaydata(‘-’); command(0×86); // LCD command for seventh position of first line lcddisplaydata(array[mo1]); lcddisplaydata(array[mo2]); command(0×89); // LCD command for tenth position of first line lcddisplaydata(‘-’); command(0x8b); // LCD command for twelveth position of first line lcddisplaydata(array[y1]); lcddisplaydata(array[y2]); lcddisplaydata(array[y3]); lcddisplaydata(array[y4]); command(0xc0); // LCD command for first position of second line lcddisplaydata(array[h1]); lcddisplaydata(array[h2]); command(0xc4); // LCD command for fourth position of second line lcddisplaydata(‘:’); command(0xc6); // LCD command for sixth position of second line lcddisplaydata(array[m1]); lcddisplaydata(array[m2]); command(0xca); // LCD command for eleventh position of second line lcddisplaydata(‘:’); command(0xcc); // LCD command for thirteenth position of second line lcddisplaydata(array[s1]); lcddisplaydata(array[s2]); delay(100); if(p==0) // switch for increasing Hours { h++; // condition to set hours s=-1; // second reset to Zero after release H++ switch if(h==24) // if h=24 then hours is start to Zero { h=0; s=-1; } } else if(q==0) // switch for decreasing Minutes { if(m>0) // if minute is greater then zero { m–; // minute is decrease till zero s=-1 ; // after releasing minute decrease button seconds initialize from zero } } else if(r==0) // switch for decreasing hours { if(h>0) // if hour is greater than zero { h–; // hour is decrease till zero s=-1; // after releasing hour decrease button seconds initialize from zero } } else if(l==0) // switch for increasing minutes { m++; s=-1; if(m>60) // if increased minutes are above than 60 than it again start from zero { m=0; s=-1; } } else if(t==0) // switch for increasing days { i++; if(i>31) // if increased days are above than 31 than it again start from zero { i=0; } } else if(u==0) // switch for decreasing days { if(i>0) // it decrease days till zero { i–; } } else if(w==0) // switch for increasing months { mo++; if(mo>12) // if increased months are above than 12 than it again start from zero { mo=0; } } else { h=h; m=m; i=i; mo=mo; } if(m==59) // conditin for switching the buzzer { bu=1; // buzzer ON } else { bu=0; // buzzer OFF } command(0×82); // to start LCD from 3rd position of first line command(0×06); // to set LCD in entry mode } } } } } } } }
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