My experiment with PIC18F4550 and Graphic LCD interface using MikroC Compiler

In this post i have tested MikroC built-in Graphic LCD Library functions with the example they provide in the help section. I had to make slight changes to the code to run on my PIC18F4550 microcontroller. The original source code is for PIC18F887 which does not gets compiled for PIC18F4550 device.

I ran this code on internal 8.000Mhz oscillator. To run the cpu on internal oscillator one needs to set Oscillator to : INTOSC:USB-HS or to INTOSC:USB-XT. My Breadboard prototype circuit runs on USB power, As i use a home built USB connector to get +5v dc from USB interface.

Configuraion:


Schematics:

Video:

Source Code:

// Glcd module connections
char GLCD_DataPort at PORTD;

sbit GLCD_CS1 at RB0_bit;
sbit GLCD_CS2 at RB1_bit;
sbit GLCD_RS at RB2_bit;
sbit GLCD_RW at RB3_bit;
sbit GLCD_EN at RB4_bit;
sbit GLCD_RST at RB5_bit;

sbit GLCD_CS1_Direction at TRISB0_bit;
sbit GLCD_CS2_Direction at TRISB1_bit;
sbit GLCD_RS_Direction at TRISB2_bit;
sbit GLCD_RW_Direction at TRISB3_bit;
sbit GLCD_EN_Direction at TRISB4_bit;
sbit GLCD_RST_Direction at TRISB5_bit;
// End Glcd module connections

void delay2S(){ // 2 seconds delay function
Delay_ms(2000);
}

void main() {
unsigned short ii;
char *someText;

#define COMPLETE_EXAMPLE // comment this line to make simpler/smaller example
CMCON = 0x07; // Disable comparators
ADCON1 = 0x0F; // Disable Analog functions
OSCCON = 0x70; // configures oscillator divider for 8MHz int. oscillator

Glcd_Init(); // Initialize GLCD
Glcd_Fill(0x00); // Clear GLCD

while(1) {
Glcd_Fill(0x00); // Clear GLCD
Glcd_Box(62,40,124,56,1); // Draw box
Glcd_Rectangle(5,5,84,35,1); // Draw rectangle
Glcd_Line(0, 0, 127, 63, 1); // Draw line
delay2S();

for(ii = 5; ii < 60; ii+=5 ){ // Draw horizontal and vertical lines
Delay_ms(250);
Glcd_V_Line(2, 54, ii, 1);
Glcd_H_Line(2, 120, ii, 1);
}

delay2S();

Glcd_Fill(0x00); // Clear GLCD
#ifdef COMPLETE_EXAMPLE
Glcd_Set_Font(Font_Glcd_Character8x7, 8, 7, 32); // Choose font, see __Lib_GLCDFonts.c in Uses folder
#endif
Glcd_Write_Text("mikroE", 1, 7, 2); // Write string

for (ii = 1; ii <= 10; ii++) // Draw circles
Glcd_Circle(63,32, 3*ii, 1);
delay2S();

Glcd_Box(12,20, 70,57, 2); // Draw box
delay2S();

#ifdef COMPLETE_EXAMPLE
Glcd_Fill(0xFF); // Fill GLCD

Glcd_Set_Font(Font_Glcd_Character8x7, 8, 7, 32); // Change font
someText = "8x7 Font";
Glcd_Write_Text(someText, 5, 0, 2); // Write string
delay2S();

Glcd_Set_Font(Font_Glcd_System3x5, 3, 5, 32); // Change font
someText = "3X5 CAPITALS ONLY";
Glcd_Write_Text(someText, 60, 2, 2); // Write string
delay2S();

Glcd_Set_Font(Font_Glcd_System5x7, 5, 7, 32); // Change font
someText = "5x7 Font";
Glcd_Write_Text(someText, 5, 4, 2); // Write string
delay2S();

Glcd_Set_Font(Font_Glcd_5x7, 5, 7, 32); // Change font
someText = "5x7 Font (v2)";
Glcd_Write_Text(someText, 50, 6, 2); // Write string
delay2S();
#endif
}
}