128×64 Raystar LCD Problem

[Bogdan]

Hello all ! I tryed to build my own software for Raystar 128×64 LCD and I don’t know what’s wrong …

I’m using Mega32 MCU . A friend is working in Bascom and has builded for me a little software . That it’s work .

 

 

 

/*

 * GraphicLCD.c

 *

 * Created: 5/26/2013 6:27:47 PM

 *  Author: Ken

 */ 

 

 

#include <avr/io.h>

 

#define DATA_PORT PORTC

#define DATA_DDR DDRC

#define CTRL_PORT PORTD

#define CTRL_DDR DDRD

#define RS 2

#define CS1 3

#define CS2 4

#define E 5

#define RW 7

 

void Check_LCD_busy(void);

void Set_Y_Address(uint8_t yaddress);

void Set_Page(uint8_t page);

void DisplayOn(void);

void DisplayOff(void);

void ctrloff(void);

void Enable(void);

void Send_Data(uint8_t data);

void Send_Command(uint8_t cmd);

 

int main(void)

{

CTRL_DDR = 0xFF;

DisplayOn();

Send_Command(0x40);

Send_Command(0xB8);

Send_Data(124);

Send_Data(126);

Send_Data(19);

Send_Data(19);

Send_Data(126);

Send_Data(124);

}

 

void Enable(){

CTRL_PORT |= 1<<E;

asm volatile (“nop”);

CTRL_PORT &= ~(1<<E);

}

 

void ctrloff(void){

CTRL_PORT &= ~(1<<CS1 | 1<<CS2 | 1<<E | 1<<RS | 1<<RW);

}

void Check_LCD_busy(){

DATA_DDR = 0x00;

CTRL_PORT |= 1<<CS1 | 1<<RW;

CTRL_PORT &= ~(1<<RS);

while (DATA_PORT >= 0x80){

Enable();

}

DATA_DDR = 0xFF;

 

}

 

void Set_Y_Address(uint8_t yaddress){

Check_LCD_busy();

ctrloff();

CTRL_PORT |= 1<<CS1;

CTRL_PORT &= ~(1<<RS | 1<<RW);

DATA_PORT = 0x40 + yaddress;

Enable();

 

}

 

void Set_Page(uint8_t page){

Check_LCD_busy();

ctrloff();

CTRL_PORT |= 1<<CS1;

CTRL_PORT &= ~(1<<RS | 1<<RW);

DATA_PORT = 0xB8 + page;

Enable();

}

 

void Send_Data(uint8_t data){

Check_LCD_busy();

CTRL_PORT |= 1<<RS | 1<<CS1;

CTRL_PORT &= ~(1<<RW);

DATA_PORT = data;

Enable();

 

}

 

void DisplayOff(){

ctrloff();

DATA_PORT = 0x3E;

CTRL_PORT &= ~(1<<RW | 1<<RS);

Enable();

}

 

void DisplayOn(){

ctrloff();

DATA_PORT = 0x3F;

CTRL_PORT &= ~(1<<RW | 1<<RS);

Enable();

}

 

void Send_Command(uint8_t cmd){

Check_LCD_busy();

ctrloff();

CTRL_PORT |= 1<<CS1;

CTRL_PORT &= ~(1<<RS | 1<<RW);

DATA_PORT = cmd;

Enable();

}

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