#include <avr/io.h>
#include <util/delay.h>

#define MrLCDsCrib 			PORTA
#define DataDir_MrLCDsCrib 		DDRA
#define MrLCDsControl 			PORTB
#define DataDir_MrLCDsControl 		DDRB
#define Lightswitch 			2
#define ReadWrite 			1
#define BiPolarMood 			0

void Check_IF_MrLCD_isBusy(void);
void Peek_A_Boo(void);
void Send_A_Command(unsigned char command);
void Send_A_Character(unsigned char character);

int main(void)
{
	DataDir_MrLCDsControl |= 1 << Lightswitch | 1 << ReadWrite | 1 << BiPolarMood;
	_delay_ms(15);

	Send_A_Command(0x01); 		//clear screen
	_delay_ms(2);
	Send_A_Command(0x38);
	_delay_us(50);
	Send_A_Command(0b00001111);
	_delay_us(50);

	Send_A_Character(0x41);		//Display "A"
	Send_A_Character(0x42);
	Send_A_Character(0x43);
	Send_A_Character(0x44);
	Send_A_Character(0x45);
	Send_A_Character(0x46);
	Send_A_Character(0x47);
	Send_A_Character(0x48);
	Send_A_Character(0x49);

	while(1)
	{

	}
}
void Check_IF_MrLCD_isBusy()
{
	DataDir_MrLCDsCrib = 0;
	MrLCDsControl |= 1 << ReadWrite;
	MrLCDsControl &= ~ 1 << BiPolarMood;

	while(MrLCDsCrib >= 0x80)
	{
		Peek_A_Boo();
	}

	DataDir_MrLCDsCrib = 0xFF;
}

void Peek_A_Boo()
{
	MrLCDsControl |= 1 << Lightswitch;
	asm volatile ("nop");
	asm volatile ("nop");
	MrLCDsControl &= ~ 1 << Lightswitch;
}

void Send_A_Command(unsigned char command)
{
	Check_IF_MrLCD_isBusy();
	MrLCDsCrib = command;
	MrLCDsControl &= ~ (1 << ReadWrite | 1 << BiPolarMood);
	Peek_A_Boo();
	MrLCDsCrib = 0;
}

void Send_A_Character(unsigned char character)
{
	Check_IF_MrLCD_isBusy();
	MrLCDsCrib = character;
	MrLCDsControl &= ~ (1 << ReadWrite);
	MrLCDsControl |= 1 << BiPolarMood;
	Peek_A_Boo();
	MrLCDsCrib = 0;
}