#include

#include

/*********************************LCD定義部分********************************/

//輸入方式設置

#define LCD_AC_AUTO_INCREMENT 0x06 //數據讀、寫操作后,AC自動增一

#define LCD_AC_AUTO_DECREASE 0x04 //數據讀、寫操作后,AC自動減一

#define LCD_MOVE_ENABLE 0x05 //數據讀、寫操作,畫面平移

#define LCD_MOVE_DISENABLE 0x04 //數據讀、寫操作,畫面不動

#define LCD_GO_HOME 0x02 //AC=0,光標、畫面回HOME位

//設置顯示、光標及閃爍開、關

#define LCD_DISPLAY_ON 0x0C //顯示開

#define LCD_DISPLAY_OFF 0x08 //顯示關

#define LCD_CURSOR_ON 0x0A //光標顯示

#define LCD_CURSOR_OFF 0x08 //光標不顯示

#define LCD_CURSOR_BLINK_ON 0x09 //光標閃爍

#define LCD_CURSOR_BLINK_OFF 0x08 //光標不閃爍

//光標、畫面移動,不影響DDRAM

#define LCD_LEFT_MOVE 0x18 //LCD顯示左移一位

#define LCD_RIGHT_MOVE 0x1C //LCD顯示右移一位

#define LCD_CURSOR_LEFT_MOVE 0x10 //光標左移一位

#define LCD_CURSOR_RIGHT_MOVE 0x14 //光標右移一位

//工作方式設置

#define LCD_DISPLAY_DOUBLE_LINE 0x38 //兩行顯示

#define LCD_DISPLAY_SINGLE_LINE 0x30 //單行顯示

#define LCD_CLEAR_SCREEN 0X01 //清屏

/***********************LCD1602地址相關******************************/

#define LINE1_HEAD 0x80 // 第一行DDRAM起始地址

#define LINE2_HEAD 0xc0 // 第二行DDRAM起始地址

#define LINE1 0 //第一行

#define LINE2 1 //第二行

#define LINE_LENGTH 16 //每行的最大字符長度

/***********************LCD1602接線引腳定義**************************

**********************可根據實際電路改變*******************************/

#define LCDIO P3 //定義P2口與LCD1602的數據口相接

sbit LCD_RS=P1^4;

sbit LCD_RW=P1^3;

sbit LCD_EN=P1^2;

sbit LCD_BUSY=LCDIO^7;

/**********************另外相關的定義*********************************/

#define HIGH 1

#define LOW 0

#define TURE 1

#define FALSE 0

#define uchar unsigned char

#define uint unsigned int

#define NUM 12

/*************************以下是函數的申明部分*************************/

void LCD_init(void); //LCD1602初始化

void LCD_send_command(uchar command); //

void LCD_send_data(uchar dat);

void LCD_write_char(uchar x,uchar y,uchar dat);

void LCD_write_string(uchar x,uchar y,char *Data);

void delay_ms(uint n);

void LCD_check_busy(void);

/*********************結束***********************************************/

//at24c02 part

#define WRITE24C02 0xA0

#define READ24C02 0xA1

//I2C part

#define Wait1us _nop_();

#define Wait2us {_nop_();_nop_();}

#define Wait4us {Wait2us;Wait2us;}

#define Wait8us {Wait4us;Wait4us;}

#define Wait10us {Wait8us;Wait2us;}

sbit SDA=P2^7; //AT24C02 serial data pin 5

sbit SCL=P2^6; //AT24C02 serial clock pin 6

/********************************************************************/

void I2C_start(void);//I2C start function

void I2C_stop(void);//I2C stop function

//void I2C_send_ack(void);//I2C send responsion function

void I2C_send_noack(void);

bit I2C_write_byte(unsigned char IIC_data);//I2C bus write byte function

unsigned char I2C_read_byte(void);//I2C bus read byte function

/********************************************************************/

void AT24C02_write(unsigned char address,unsigned char *buf,unsigned char n);//write 24c02 information function

void AT24C02_read(unsigned char address,unsigned char *buf,unsigned char n);//read 24c02 information function

/********************************************************************/

void Mcu_init(void);//system initize funcition

void I2C_init(void);

unsigned char count[2];

unsigned char sharebuf[NUM]={'A','B','C','D','1','2','3',')','\0','\0','\0','\0'};

//unsigned char sharebuf[NUM];

unsigned char readbuf[NUM];

/********************************************************************/

delay32()

{

unsigned int i=300;

while(i--);

}

void main()

{

unsigned char temp;

Mcu_init();

AT24C02_write(0x00,sharebuf,8);

AT24C02_read(0x00,readbuf,8);

//LCD_write_char(0x08,LINE2,(readbuf[3]/10)|0x30);

//LCD_write_char(0x09,LINE2,(readbuf[3]%10)|0x30);

//LCD_write_char(0x0a,LINE2,(readbuf[4]/10)|0x30);

//LCD_write_char(0x0b,LINE2,(readbuf[4]%10)|0x30);

//LCD_write_char(0x0c,LINE2,(readbuf[5]/10)|0x30);

//LCD_write_char(0x0d,LINE2,(readbuf[5]%10)|0x30);

//LCD_write_char(0x0e,LINE2,(readbuf[6]/10)|0x30);

//LCD_write_char(0x0f,LINE2,(readbuf[6]%10)|0x30);

LCD_write_string(0x00,LINE1,sharebuf);

LCD_write_string(0x00,LINE2,readbuf);

while(1){}

/*while(1)

{

sharebuf[0]=count[1];

sharebuf[1]=count[0];

AT24C02_write(0x00,sharebuf,2);

AT24C02_read(0x00,sharebuf,2);

temp=sharebuf[0];

LCD_write_string(0x00,LINE1,"AT24C02 TEST");

LCD_write_char(0x0e,LINE1,(temp/10)|0x30);

LCD_write_char(0x0f,LINE1,(temp%10)|0x30);

LCD_write_string(0x00,LINE2,"TIMER0 JISHU");

LCD_write_char(0x0e,1,(count[1]/10)|0x30);

LCD_write_char(0x0f,1,(count[1]%10)|0x30);

}*/

}

/***********************************************************************/

void timer0(void) interrupt 1 using 1

{

TH0=-(12000/256);

TL0=-(12000%256);

count[0]=count[0]+1;

if(count[0]==100)

{

count[0]=0;

count[1]=count[1]+1;

if(count[1]==99)

count[1]=0;

}

//12ms中斷1次

}

/***********************************************************************/

void Mcu_init(void)

{

TMOD=0x01;

TH0=-(12000/256);

TL0=-(12000%256);

EA=HIGH; //啟用所有中斷功能

ET0=HIGH; //啟用TF0中斷功能;

//以上兩句相當于 IE= 0x82;

TR0=HIGH; //啟動定時器0;

LCD_init();

}

/***********************************************************************/

/******************************** I2C PART **************************/

void I2C_start(void)

{

SCL=1; Wait2us;

SDA=1; Wait2us;

SDA=0; Wait2us;

SCL=0; Wait2us;

}

/***********************************************************************/

void I2C_stop(void)

{

SDA=0;Wait2us;

SCL=1;Wait2us;

SDA=1;Wait2us;

SCL=0;Wait2us;

}

/***********************************************************************/

void I2C_send_ack(bit sig)

{

SDA=0;Wait2us

SCL=1;Wait2us

SCL=0;Wait2us

SDA=1;

}

/*************************************************************************/

void I2C_send_noack(void)

{

SDA=1;Wait2us

SCL=1;Wait2us

SCL=0;

}

/*****************************************************************************/

void I2C_send_ackold(bit sig)

{

SDA=sig;

SCL=0;Wait2us;

SCL=1;Wait2us;

SCL=0;Wait2us;

}

void I2C_TestACK(void){

Wait10us;

}

/***********************************************************************/

bit I2C_write_byte(unsigned char input)

{

bit ack;

unsigned char temp;

for(temp=0;temp<8;temp++)

{

SDA=0;

if ((input<

SCL=1;Wait2us;

SCL=0;

}

SDA=1;Wait2us;//釋放數據線，準備接收應答信號

ack=SDA;

SCL=1;Wait2us;

SCL=0;

return ack;

}

/***********************************************************************/

unsigned char I2C_read_byte(void)

{

unsigned char temp,rbyte=0;

SDA=1;

for(temp=0;temp<8;temp++)

{

SCL=0;Wait2us

SCL=1;

rbyte<<=1;

if (SDA==1){rbyte+=1;}

}

SCL=0;

return(rbyte);

}

/************************************************************************/

void AT24C02_write(unsigned char address,unsigned char *buf,unsigned char Nbyte)

{

I2C_start();

I2C_write_byte(WRITE24C02);

I2C_TestACK();

I2C_write_byte(address);

I2C_TestACK();

for(;Nbyte!=0;Nbyte--)

{

I2C_write_byte(*buf);

I2C_TestACK();

buf++;

}

I2C_TestACK();

I2C_stop();

delay_ms(10);//這個很重要,調了幾天問題就是出在h里的,最好在每個函數之間加延時

}

/************************************************************************/

void AT24C02_read(unsigned char address,unsigned char *buf,unsigned char Nbyte)

{

I2C_start();

I2C_write_byte(WRITE24C02);

I2C_TestACK();

I2C_write_byte(address);

I2C_TestACK();

I2C_start();

I2C_write_byte(READ24C02);

I2C_TestACK();

while(Nbyte!=1)

{

*buf=I2C_read_byte();

I2C_send_ack(0);

buf++;

Nbyte--;

}

*buf=I2C_read_byte();

I2C_send_noack();

I2C_stop();

}

/**************LCD1602的初始化***************************/

void LCD_init(void)

{

LCD_send_command(LCD_DISPLAY_DOUBLE_LINE);

LCD_send_command(LCD_AC_AUTO_INCREMENT|LCD_MOVE_DISENABLE);

LCD_send_command(LCD_DISPLAY_ON|LCD_CURSOR_OFF);

LCD_send_command(LCD_CLEAR_SCREEN);

}

/***********************檢測LCD狀態*********************************/

void LCD_check_busy(void)

{

do

{

LCD_EN=0;

LCD_RS=0;

LCD_RW=1;

LCDIO=0xff;

LCD_EN=1;

}

while(LCD_BUSY==1);

LCD_EN=0;

}

/************LCD1602寫命令*******************************/

void LCD_send_command(uchar command)

{

LCD_check_busy();

LCD_RS=LOW;

LCD_RW=LOW;

LCD_EN=HIGH;

LCDIO=command;

LCD_EN=LOW;

}

/********************************************************/

/*****************LCD1602寫數據**************************/

void LCD_send_data(uchar dat)

{

LCD_check_busy();

LCD_RS=HIGH;

LCD_RW=LOW;

LCD_EN=HIGH;

LCDIO=dat;

LCD_EN=LOW;

}

/***********************LCD1602顯示字符*********************************/

void LCD_write_char(uchar x,uchar y,uchar dat)

{

unsigned char address;

if (y == LINE1)

address = LINE1_HEAD + x;

else

address = LINE2_HEAD + x;

LCD_send_command(address);

LCD_send_data(dat);

}

/******************LCD1602顯示字符串*********************/

void LCD_write_string(uchar x,uchar y,uchar *Data)

{

if(y==LINE1)

{

if(x

{

LCD_send_command(LINE1_HEAD+x);

for(;x

{

LCD_send_data(*(Data++));

}

if(*Data!='\0')

{

x=0;

y=LINE2;

}

}

}

if(y==LINE2)

{

LCD_send_command(LINE2_HEAD+x);

for(;x

{

LCD_send_data(*(Data++));

}

}

}

/****************************************************************/

/********************延時函數***********************************/

/***************************************************************/

void delay_ms(uint n)

{

uint i,j;

for(i=n;i>0;i--)

for(j=0;j<1140;j++)

;

}

/*********************************************************************/

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