ICCAVR_mega8_Proteus LCD1602显示

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ICCAVR_mega8_Proteus LCD1602显示 [复制链接]

//ICC-AVR application builder : 2009-3-12 16:02:34
// Http://www.oa-only.com
// Target : M8
// Crystal: 8.0000Mhz

#include
#include

void port_init(void)
{
PORTB = 0x00;
DDRB  = 0x00;
PORTC = 0x00; //m103 output only
DDRC  = 0x00;
PORTD = 0x00;
DDRD  = 0x00;
}

//call this routine to initialize all peripherals
void init_devices(void)
{
//stop errant interrupts until set up
CLI(); //disable all interrupts
port_init();

MCUCR = 0x00;
GICR  = 0x00;
TIMSK = 0x00; //timer interrupt sources
SEI(); //re-enable interrupts
//all peripherals are now initialized
}

/*************************************************************************
用    途:LCD1602显示
Taget   :mega8
crystal :8M
介    绍:用PB做端口,
         PB0-D0
PB7-D7
------
PC0-6
PC1-5
PC2-4----456为控制引脚
入口参数:
出口参数:
*************************************/
//延时程序
void delay(unsigned int ms)
{
   unsigned int i,j;
for(i=0;i   {for(j=0;j<200;j++);}
}
//送指令子程序
void com_lcd(unsigned char com)
{
   PORTC&=~(1< PORTC&=~(1< PORTB=com;
PORTC|=(1< delay(5);
PORTC&=~(1< }
//送数据子程序
void data_lcd(unsigned char data)
{
   PORTC|=(1< PORTC&=~(1< PORTB=data;
PORTC|=(1< delay(5);
PORTC&=~(1< }
//初始化
void LCD1602_init()
{
   DDRB=0XFF;
DDRC|=0X07;
PORTC&=~(1<
com_lcd(0x38);//5*7,2行显示
delay(5);
com_lcd(0x01); //清屏
delay(5);
com_lcd(0x0C);//文字不动，光标自动右移
delay(5);
com_lcd(0x06);//开显示
delay(5);
}
//清屏
void LCD1602_clear()
{
   com_lcd(0x01); //清屏
delay(5);
}
//定位x,y(x-列,y-行)
void LCD1602_goxy(unsigned char line,unsigned char row)
{
if (row==0)
  line+=0x81;
else
  line+=0xc0;
com_lcd(line);//第二行首地址
delay(5);
}
//显示字符串
LCD1602_print(char *str)
{
while(*str)
{
  data_lcd(*str);
  delay(10);
  str++;
}
}
//显示一个二位十位数
LCD1602_printD(unsigned char n)
{
data_lcd(n/10+0x30);
delay(10);
data_lcd(n%10+0x30);
delay(10);
}
//**************************************************************************

void main()
{
unsigned char i=23;
port_init();
init_devices();

LCD1602_init();
LCD1602_goxy(2,0);
LCD1602_print("abcd");
LCD1602_goxy(2,1);
LCD1602_printD(i);

while(1)
{
  ;
}
}

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