sumonpic10
Newbie level 5
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Hi, I try to program the pic microcontroller according my controller. There I used 3 button for enter the program menu, change the program number. When press the prog_button then enter the program. And press forw_button the change the number also. But when i press the revs_button then came random display. Below my code.. I don't understand where is mistake. Please help me
Best regard
Sumon Ahmed
Best regard
Sumon Ahmed
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 // LCD module connections sbit LCD_RS at RB4_bit; sbit LCD_EN at RB5_bit; sbit LCD_D4 at RB0_bit; sbit LCD_D5 at RB1_bit; sbit LCD_D6 at RB2_bit; sbit LCD_D7 at RB3_bit; sbit LCD_RS_Direction at TRISB4_bit; sbit LCD_EN_Direction at TRISB5_bit; sbit LCD_D4_Direction at TRISB0_bit; sbit LCD_D5_Direction at TRISB1_bit; sbit LCD_D6_Direction at TRISB2_bit; sbit LCD_D7_Direction at TRISB3_bit; // End LCD module connections sbit prog_button at portc.f0; // button interface with portC sbit enter_button at portc.f1; sbit forw_button at portc.f2; sbit revs_button at portc.f3; char main_1[] = "MAIN MENU"; // string character char prog_1[] = "1 program"; char prog_2[] = "2 program"; char prog_3[] = "3 program"; char blank_1[] = " "; // blank display int prog_code = 0; // variable declared // program function ////// prog_init() { while(prog_code==1) { if(forw_button == 1) && (prog_code ==1) // if enter button press ///// { Lcd_Cmd(_LCD_CLEAR); // Clear display prog_code = 2; // prog_code value changed delay_ms(200); // delay time 200ms } Lcd_Out(1,1,main_1); Lcd_Out(2,1,prog_1); Lcd_Out(3,1,prog_2); Lcd_Out(4,1,prog_3); delay_ms(300); Lcd_Out(1,1,main_1); Lcd_Out(2,1,blank_1); Lcd_Out(3,1,prog_2); Lcd_Out(4,1,prog_3); delay_ms(300); } while(prog_code==2) { if(forw_button == 1) && (prog_code ==2) // if enter button press ///// { Lcd_Cmd(_LCD_CLEAR); // Clear display prog_code = 3; // prog_code value changed delay_ms(200); // delay time 200ms } if(revs_button == 1) && (prog_code ==2) // if enter button press ///// { Lcd_Cmd(_LCD_CLEAR); // Clear display prog_code = 1; // prog_code value changed delay_ms(200); // delay time 200ms } Lcd_Out(1,1,main_1); Lcd_Out(2,1,prog_1); Lcd_Out(3,1,prog_2); Lcd_Out(4,1,prog_3); delay_ms(300); Lcd_Out(1,1,main_1); Lcd_Out(2,1,prog_1); Lcd_Out(3,1,blank_1); Lcd_Out(4,1,prog_3); delay_ms(300); } while(prog_code==3) { if(forw_button == 1) && (prog_code ==3) // if enter button press ///// { Lcd_Cmd(_LCD_CLEAR); // Clear display prog_code = 0; // prog_code value changed delay_ms(200); // delay time 200ms } if(revs_button == 1) && (prog_code ==3) // if enter button press ///// { Lcd_Cmd(_LCD_CLEAR); // Clear display prog_code = 2; // prog_code value changed delay_ms(200); // delay time 200ms } Lcd_Out(1,1,main_1); Lcd_Out(2,1,prog_1); Lcd_Out(3,1,prog_2); Lcd_Out(4,1,prog_3); delay_ms(300); Lcd_Out(1,1,main_1); Lcd_Out(2,1,prog_1); Lcd_Out(3,1,prog_2); Lcd_Out(4,1,blank_1); delay_ms(300); } } void main() { TRISB = 0; PORTB = 0xFF; ANSEL = 0; // Configure AN pins as digital I/O ANSELH = 0; Lcd_Init(); // Initialize LCD Lcd_Cmd(_LCD_CLEAR); // Clear display Lcd_Cmd(_LCD_CURSOR_OFF); // Cursor off while(1) { Lcd_Out(1,1," programmable"); Lcd_Out(2,1," digital controller "); if(prog_button == 1) // if button is press { Lcd_Cmd(_LCD_CLEAR); // Clear display prog_init(); // call a function prog_code = 1; // prog_code value changed delay_ms(200); // delay time 200ms } }
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