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| // 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
}
} |