main._c

本程序是基于avr单片机的atmega48的控制16*4点阵型液晶。其中main文件调用LCD.c和LCD.h文件。用户可以直接把工程中的LCD.c和LCD.h文件放到自己的程序目录下即可。

#include "lcd.h"
#include "uart.h"
void uart0_rx_isr();
int i,j;
/*
#pragma interrupt_handler uart0_rx_isr:19
void uart0_rx_isr(void)
{
 
 unsigned char c;
 c=UDR0;
 LCD_display_char(0,0,c);
 if(i>=15)
 {
  i=0;
  j=j+1;
  if(j>=4)
   {
   j=0;
   LCD_write_char(0x01,0);
   } 
 }

 //uart has received a character in UDR
}
*/
void main(void)
{
   unsigned char c,c_temp;
      init_devices();
      LCD_init();
	  uart0_init();
	  j=3;
	  i=12;
	  	 LCD_write_char(0x01,0);
		// LCD_display_char(5,2,'8');
	
         LCD_write_string(4,0,"Wellcome");
         LCD_write_string(0,1,"www.OURAVR.com!");
         LCD_write_string(0,2,"happy new year!");
         LCD_write_string(0,3,"amork:everfriend");
		 delay_nms(5000);
		  LCD_write_char(0x01,0);
     while(1)    //for循环
     {
	     LCD_write_string(4,0,"Wellcome");
         LCD_write_string(0,1,"www.OURAVR.com!");
         LCD_write_string(0,2,"happy new year!");
	   c_temp=uart_rec();
       LCD_display_char(i,j,c_temp);
	     i=i+1;
       if(i>=16)
         {
             i=0;
             j=j+1;
              if(j>=4)
              {
                j=0;
                LCD_write_char(0x01,0);
              } 
          }
		 

     }
}