My experiement with PIC18F2550 and Character Type LCD, using MikroC Pro for PIC

This weekend i wanted to test a character type LCD library supplied with MikroC Pro for PIC. I ran the LCD code on PIC18F2550 device. I ran my PIC18F2550 Device using internal oscillator. To correctly run PIC on internal oscillator, i selected oscillator to INTOSC:USB+HS or INTOSC:USB+XT from the Project Settings Dialog box (which can be accessed by pressing CTRL+SHIF+E in MikroC). To run the microcontroller on internal 8.000mhz clock i also added following statement to my C code:

OSCCON = 0x70; // configures oscillator divider for 8MHz int. oscillator

Schematics:

Picture of my assembled circuit:


MikroC Project Settings

Source Code:

// 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

char txt1[] = "mikroElektronika";
char txt2[] = "EasyPIC6";
char txt3[] = "Lcd4bit";
char txt4[] = "example";

char i; // Loop variable

void Move_Delay() { // Function used for text moving
Delay_ms(250); // You can change the moving speed here
}

void main(){
CMCON = 0x07; // Disable comparators
ADCON1 = 0x0F; // Disable Analog functions
OSCCON = 0x70; // configures oscillator divider for 8MHz int. oscillator

Lcd_Init(); // Initialize LCD

Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF); // Cursor off
Lcd_Out(1,6,txt3); // Write text in first row

Lcd_Out(2,6,txt4); // Write text in second row
Delay_ms(2000);
Lcd_Cmd(_LCD_CLEAR); // Clear display

Lcd_Out(1,1,txt1); // Write text in first row
Lcd_Out(2,5,txt2); // Write text in second row

Delay_ms(2000);

// Moving text
for(i=0; i<4; i++) { // Move text to the right 4 times
Lcd_Cmd(_LCD_SHIFT_RIGHT);
Move_Delay();
}

while(1) { // Endless loop
for(i=0; i<8; i++) { // Move text to the left 7 times
Lcd_Cmd(_LCD_SHIFT_LEFT);
Move_Delay();
}

for(i=0; i<8; i++) { // Move text to the right 7 times
Lcd_Cmd(_LCD_SHIFT_RIGHT);
Move_Delay();
}
}
}

Conclusion: Using MikroC built-in LCD library it is very quick and easy to run character type LCDs.

This entry was posted in MikroC and PIC Microcontroller. Bookmark the permalink.

2 Responses to My experiement with PIC18F2550 and Character Type LCD, using MikroC Pro for PIC

  1. hoang cuong says:

    you can share for me full file. it's file .c of Picc or Mplap .thanks you very much

  2. Dear hoang cuong,Sorry for my late reply, This code was actually written using MikroC Compiler. And the code was saved in a .c file.Regards.

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