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#include <STC15.H>
#include "PCF8574.h"
/************IO口工作模式初始化函數(shù)***********/
void IO_Init(void)
{
P0M0=0x00;
P0M1=0x00;
P1M0=0x00;
P1M1=0x00;
P2M0=0x00;
P2M1=0x00;
P3M0=0x00;
P3M1=0x00;
P4M0=0x00;
P4M1=0x00;
P5M0=0x00;
P5M1=0x00;
}
/**************延時函數(shù)ms**************/
void delayms(unsigned int t) //@12.000MHz
{
unsigned int i;
unsigned char j,k;
for(i=0;i<t;i++)
for(j=0;j<35;j++)
for(k=0;k<80;k++);
}
void delay1(uchar x)
{
uchar a,b;
for(a=x;a>0;a--)
for(b=200;b>0;b--);
}
void write_com(uchar com) //寫命令函數(shù)
{ uchar com1,com2;
com1=com|0x0f;
write_add(com1&0xfc);
delay1(2);
write_add(com1&0xf8);
com2=com<<4;
com2=com2|0x0f;
write_add(com2&0xfc);
delay1(2);
write_add(com2&0xf8);
}
void write_date(uchar date) //寫數(shù)據(jù)函數(shù)
{
uchar date1,date2;
date1=date|0x0f;
write_add(date1&0xfd);
delay1(2);
write_add(date1&0xf9);
date2=date<<4;
date2=date2|0x0f;
write_add(date2&0xfd);
delay1(2);
write_add(date2&0xf9);
}
void init_lcd(void) //初始化函數(shù)
{
write_com(0x33); //顯示模式設(shè)置
delayms(6);
write_com(0x32); //顯示模式設(shè)置
delayms(6);
write_com(0x28); //4位總線，雙行顯示，顯示5×7的點陣字符
delayms(6);
write_com(0x01); //清屏
delayms(6);
write_com(0x06); //字符進入模式：屏幕不動，字符后移
delayms(6);
write_com(0x0c); //顯示開，關(guān)光標(biāo)
//write_LCD_Command(0x0f); //顯示開,開光標(biāo),光標(biāo)閃爍
delayms(6);
}
//顯示字符串：第x行第y列顯示什么內(nèi)容
void ShowStr(unsigned char x,unsigned char y,unsigned char *str)
{
if(x == 1)
{
write_com(0x80 | y-1);
}
if(x == 2)
{
write_com(0xc0 | y-1);
}
//輸出字符串
while(*str!='\0')
{
write_date(*str);
str++;
}
}
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