Subversion Repositories copyblaze

//#include <stdio.h>

void __port_write(char port, char arg) { }

char __port_read(char port) { }

void __nop() { }

#define LCD_wr(arg)   __port_write(0x01, (arg))

#define LCD_rd()   __port_read(0x01)

#define LCD_busy()  (LCD_rd() & 0x80) == 0x80

void delay_ms(int ms)

{

 int i;

 for (;;) {

     for (i=0; i < 10000; i++) __nop();

 }

}

void LCD_init()

{

  LCD_wr(0x42);

  while (LCD_rd()) { __nop();}

  LCD_wr(0x43);

 delay_ms(10);

  LCD_wr(0x44);

  LCD_wr(0x45);

}

void LCD_write(char ch)

{

  LCD_wr(0x46);

  LCD_wr(0x47);

}

int main(void) {

 char ch = 0x31;

 LCD_init();

 while (1) {

   LCD_write(ch);

   delay_ms(1000);

 }

}