单片机lcd改进版时钟
2017-02-07 12:41
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#include<reg52.h>
#include<intrins.h>
#define KeyPort P3//¶¨Òå°´¼ü¶Ë¿Ú
#define _Nop() _nop_() //¶¨Òå¿ÕÖ¸Áî
#define RS_CLR RS=0
#define RS_SET RS=1
#define RW_CLR RW=0
#define RW_SET RW=1
#define EN_CLR EN=0
#define EN_SET EN=1
#define DataPort P0
#define Led Port P1 //¶¨ÒåÊý¾Ý¶Ë¿Ú ³ÌÐòÖÐÓöµ½DataPort ÔòÓÃP0 Ìæ»»
sbit SPK=P2^2;
sbit SDA=P2^1; //Ä£ÄâI2CÊý¾Ý´«ËÍλ
sbit SCL=P2^0; //Ä£ÄâI2CʱÖÓ¿ØÖÆλ
sbit RS = P2^4; //¶¨Òå¶Ë¿Ú
sbit RW = P2^5;
sbit EN = P2^6;
bit ack; //Ó¦´ð±ê־λ
unsigned char hour,minute,second;//¶¨Òåʱ·ÖÃë
unsigned int num ;
unsigned char flag1,flag2,flag3;
unsigned char code dofly_DuanMa[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
unsigned char code dofly_WeiMa[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned char TempData[8]; //´æ´¢ÏÔʾֵµÄÈ«¾Ö±äÁ¿
void LCD_Init(void);
bit LCD_Check_Busy(void);
void LCD_Write_Com(unsigned char com);
void LCD_Write_Data(unsigned char Data);
void LCD_Clear(void);
void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s);
void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data);
void DelayUs2x(unsigned char t);//us¼¶ÑÓʱº¯ÊýÉùÃ÷
void DelayMs(unsigned char t); //ms¼¶ÑÓʱ
void Display();//ÊýÂë¹ÜÏÔʾº¯Êý
unsigned char KeyScan(void);//¼üÅÌɨÃè
void Init_Timer0(void);//¶¨Ê±Æ÷³õʼ»¯
void ISR_Key(void) interrupt 0 using 1
{
P1=~P1; //½øÈëÖжϳÌÐòÖ´ÐгÌÐò£¬
//´Ëʱ¿ÉÒÔͨ¹ý EA=0Ö¸ÁîÔÝʱ¹ØµôÖжÏ
}
void Start_I2c()
{
SDA=1; //·¢ËÍÆðʼÌõ¼þµÄÊý¾ÝÐźÅ
_Nop();
SCL=1;
_Nop(); //ÆðʼÌõ¼þ½¨Á¢Ê±¼ä´óÓÚ4.7us,ÑÓʱ
_Nop();
_Nop();
_Nop();
_Nop();
SDA=0; //·¢ËÍÆðʼÐźÅ
_Nop(); //ÆðʼÌõ¼þËø¶¨Ê±¼ä´óÓÚ4¦Ì
_Nop();
_Nop();
_Nop();
_Nop();
SCL=0; //ǯסI2C×ÜÏߣ¬×¼±¸·¢ËÍ»ò½ÓÊÕÊý¾Ý
_Nop();
_Nop();
}
/*------------------------------------------------
½áÊø×ÜÏß
------------------------------------------------*/
void Stop_I2c()
{
SDA=0; //·¢ËͽáÊøÌõ¼þµÄÊý¾ÝÐźÅ
_Nop(); //·¢ËͽáÊøÌõ¼þµÄʱÖÓÐźÅ
SCL=1; //½áÊøÌõ¼þ½¨Á¢Ê±¼ä´óÓÚ4¦Ì
_Nop();
_Nop();
_Nop();
_Nop();
_Nop();
SDA=1; //·¢ËÍI2C×ÜÏß½áÊøÐźÅ
_Nop();
_Nop();
_Nop();
_Nop();
}
/*----------------------------------------------------------------
×Ö½ÚÊý¾Ý´«Ëͺ¯Êý
º¯ÊýÔÐÍ: void SendByte(unsigned char c);
¹¦ÄÜ: ½«Êý¾Ýc·¢ËͳöÈ¥,¿ÉÒÔÊǵØÖ·,Ò²¿ÉÒÔÊÇÊý¾Ý,·¢ÍêºóµÈ´ýÓ¦´ð,²¢¶Ô
´Ë״̬λ½øÐвÙ×÷.(²»Ó¦´ð»ò·ÇÓ¦´ð¶¼Ê¹ack=0 ¼Ù)
·¢ËÍÊý¾ÝÕý³££¬ack=1; ack=0±íʾ±»¿ØÆ÷ÎÞÓ¦´ð»òË𻵡£
------------------------------------------------------------------*/
void SendByte(unsigned char c)
{
unsigned char BitCnt;
for(BitCnt=0;BitCnt<8;BitCnt++) //Òª´«Ë͵ÄÊý¾Ý³¤¶ÈΪ8λ
{
if((c<<BitCnt)&0x80)SDA=1; //ÅжϷ¢ËÍλ
else SDA=0;
_Nop();
SCL=1; //ÖÃʱÖÓÏßΪ¸ß£¬Í¨Öª±»¿ØÆ÷¿ªÊ¼½ÓÊÕÊý¾Ýλ
_Nop();
_Nop(); //±£Ö¤Ê±ÖӸߵçƽÖÜÆÚ´óÓÚ4¦Ì
_Nop();
_Nop();
_Nop();
SCL=0;
}
_Nop();
_Nop();
SDA=1; //8λ·¢ËÍÍêºóÊÍ·ÅÊý¾ÝÏߣ¬×¼±¸½ÓÊÕÓ¦´ðλ
_Nop();
_Nop();
SCL=1;
_Nop();
_Nop();
_Nop();
if(SDA==1)ack=0;
else ack=1; //ÅжÏÊÇ·ñ½ÓÊÕµ½Ó¦´ðÐźÅ
SCL=0;
_Nop();
_Nop();
}
/*----------------------------------------------------------------
×Ö½ÚÊý¾Ý´«Ëͺ¯Êý
º¯ÊýÔÐÍ: unsigned char RcvByte();
¹¦ÄÜ: ÓÃÀ´½ÓÊÕ´ÓÆ÷¼þ´«À´µÄÊý¾Ý,²¢ÅжÏ×ÜÏß´íÎó(²»·¢Ó¦´ðÐźÅ)£¬
·¢ÍêºóÇëÓÃÓ¦´ðº¯Êý¡£
------------------------------------------------------------------*/
unsigned char RcvByte()
{
unsigned char retc;
unsigned char BitCnt;
retc=0;
SDA=1; //ÖÃÊý¾ÝÏßΪÊäÈ뷽ʽ
for(BitCnt=0;BitCnt<8;BitCnt++)
{
_Nop();
SCL=0; //ÖÃʱÖÓÏßΪµÍ£¬×¼±¸½ÓÊÕÊý¾Ýλ
_Nop();
_Nop(); //ʱÖӵ͵çƽÖÜÆÚ´óÓÚ4.7us
_Nop();
_Nop();
_Nop();
SCL=1; //ÖÃʱÖÓÏßΪ¸ßʹÊý¾ÝÏßÉÏÊý¾ÝÓÐЧ
_Nop();
_Nop();
retc=retc<<1;
if(SDA==1)retc=retc+1; //¶ÁÊý¾Ýλ,½ÓÊÕµÄÊý¾Ýλ·ÅÈëretcÖÐ
_Nop();
_Nop();
}
SCL=0;
_Nop();
_Nop();
return(retc);
}
/*----------------------------------------------------------------
Ó¦´ð×Óº¯Êý
ÔÐÍ: void Ack_I2c(void);
----------------------------------------------------------------*/
void Ack_I2c(void)
{
SDA=0;
_Nop();
_Nop();
_Nop();
SCL=1;
_Nop();
_Nop(); //ʱÖӵ͵çƽÖÜÆÚ´óÓÚ4¦Ì
_Nop();
_Nop();
_Nop();
SCL=0; //ÇåʱÖÓÏߣ¬Ç¯×¡I2C×ÜÏßÒÔ±ã¼ÌÐø½ÓÊÕ
_Nop();
_Nop();
}
/*----------------------------------------------------------------
·ÇÓ¦´ð×Óº¯Êý
ÔÐÍ: void NoAck_I2c(void);
----------------------------------------------------------------*/
void NoAck_I2c(void)
{
SDA=1;
_Nop();
_Nop();
_Nop();
SCL=1;
_Nop();
_Nop(); //ʱÖӵ͵çƽÖÜÆÚ´óÓÚ4¦Ì
_Nop();
_Nop();
_Nop();
SCL=0; //ÇåʱÖÓÏߣ¬Ç¯×¡I2C×ÜÏßÒÔ±ã¼ÌÐø½ÓÊÕ
_Nop();
_Nop();
}
/*----------------------------------------------------------------
ÏòÎÞ×ÓµØÖ·Æ÷¼þ·¢ËÍ×Ö½ÚÊý¾Ýº¯Êý
º¯ÊýÔÐÍ: bit ISendByte(unsigned char sla,ucahr c);
¹¦ÄÜ: ´ÓÆô¶¯×ÜÏßµ½·¢Ë͵ØÖ·£¬Êý¾Ý£¬½áÊø×ÜÏßµÄÈ«¹ý³Ì,´ÓÆ÷¼þµØÖ·sla.
Èç¹û·µ»Ø1±íʾ²Ù×÷³É¹¦£¬·ñÔò²Ù×÷ÓÐÎó¡£
×¢Ò⣺ ʹÓÃÇ°±ØÐëÒѽáÊø×ÜÏß¡£
----------------------------------------------------------------*/
/*bit ISendByte(unsigned char sla,unsigned char c)
{
Start_I2c(); //Æô¶¯×ÜÏß
SendByte(sla); //·¢ËÍÆ÷¼þµØÖ·
if(ack==0)return(0);
SendByte(c); //·¢ËÍÊý¾Ý
if(ack==0)return(0);
Stop_I2c(); //½áÊø×ÜÏß
return(1);
}
*/
/*----------------------------------------------------------------
ÏòÓÐ×ÓµØÖ·Æ÷¼þ·¢ËͶà×Ö½ÚÊý¾Ýº¯Êý
º¯ÊýÔÐÍ: bit ISendStr(unsigned char sla,unsigned char suba,ucahr *s,unsigned char no);
¹¦ÄÜ: ´ÓÆô¶¯×ÜÏßµ½·¢Ë͵ØÖ·£¬×ÓµØÖ·,Êý¾Ý£¬½áÊø×ÜÏßµÄÈ«¹ý³Ì,´ÓÆ÷¼þ
µØÖ·sla£¬×ÓµØÖ·suba£¬·¢ËÍÄÚÈÝÊÇsÖ¸ÏòµÄÄÚÈÝ£¬·¢ËÍno¸ö×Ö½Ú¡£
Èç¹û·µ»Ø1±íʾ²Ù×÷³É¹¦£¬·ñÔò²Ù×÷ÓÐÎó¡£
×¢Ò⣺ ʹÓÃÇ°±ØÐëÒѽáÊø×ÜÏß¡£
----------------------------------------------------------------*/
bit ISendStr(unsigned char sla,unsigned char suba,unsigned char *s,unsigned char no)
{
unsigned char i;
Start_I2c(); //Æô¶¯×ÜÏß
SendByte(sla); //·¢ËÍÆ÷¼þµØÖ·
if(ack==0)return(0);
SendByte(suba); //·¢ËÍÆ÷¼þ×ÓµØÖ·
if(ack==0)return(0);
for(i=0;i<no;i++)
{
SendByte(*s); //·¢ËÍÊý¾Ý
DelayMs(1);
if(ack==0)return(0);
s++;
}
Stop_I2c(); //½áÊø×ÜÏß
return(1);
}
/*----------------------------------------------------------------
ÏòÎÞ×ÓµØÖ·Æ÷¼þ¶Á×Ö½ÚÊý¾Ýº¯Êý
º¯ÊýÔÐÍ: bit IRcvByte(unsigned char sla,ucahr *c);
¹¦ÄÜ: ´ÓÆô¶¯×ÜÏßµ½·¢Ë͵ØÖ·£¬¶ÁÊý¾Ý£¬½áÊø×ÜÏßµÄÈ«¹ý³Ì,´ÓÆ÷¼þµØ
Ö·sla£¬·µ»ØÖµÔÚc.
Èç¹û·µ»Ø1±íʾ²Ù×÷³É¹¦£¬·ñÔò²Ù×÷ÓÐÎó¡£
×¢Ò⣺ ʹÓÃÇ°±ØÐëÒѽáÊø×ÜÏß¡£
----------------------------------------------------------------*/
/*bit IRcvByte(unsigned char sla,unsigned char *c)
{
Start_I2c(); //Æô¶¯×ÜÏß
SendByte(sla+1); //·¢ËÍÆ÷¼þµØÖ·
if(ack==0)return(0);
*c=RcvByte(); //¶ÁÈ¡Êý¾Ý
NoAck_I2c(); //·¢ËͷǾʹðλ
Stop_I2c(); //½áÊø×ÜÏß
return(1);
}
*/
/*----------------------------------------------------------------
ÏòÓÐ×ÓµØÖ·Æ÷¼þ¶ÁÈ¡¶à×Ö½ÚÊý¾Ýº¯Êý
º¯ÊýÔÐÍ: bit ISendStr(unsigned char sla,unsigned char suba,ucahr *s,unsigned char no);
¹¦ÄÜ: ´ÓÆô¶¯×ÜÏßµ½·¢Ë͵ØÖ·£¬×ÓµØÖ·,¶ÁÊý¾Ý£¬½áÊø×ÜÏßµÄÈ«¹ý³Ì,´ÓÆ÷¼þ
µØÖ·sla£¬×ÓµØÖ·suba£¬¶Á³öµÄÄÚÈÝ·ÅÈësÖ¸ÏòµÄ´æ´¢Çø£¬¶Áno¸ö×Ö½Ú¡£
Èç¹û·µ»Ø1±íʾ²Ù×÷³É¹¦£¬·ñÔò²Ù×÷ÓÐÎó¡£
×¢Ò⣺ ʹÓÃÇ°±ØÐëÒѽáÊø×ÜÏß¡£
----------------------------------------------------------------*/
bit IRcvStr(unsigned char sla,unsigned char suba,unsigned char *s,unsigned char no)
{
unsigned char i;
Start_I2c(); //Æô¶¯×ÜÏß
SendByte(sla); //·¢ËÍÆ÷¼þµØÖ·
if(ack==0)return(0);
SendByte(suba); //·¢ËÍÆ÷¼þ×ÓµØÖ·
if(ack==0)return(0);
Start_I2c();
SendByte(sla+1);
if(ack==0)return(0);
for(i=0;i<no-1;i++)
{
*s=RcvByte(); //·¢ËÍÊý¾Ý
Ack_I2c(); //·¢Ë;ʹðλ
s++;
}
*s=RcvByte();
NoAck_I2c(); //·¢ËÍ·ÇӦλ
Stop_I2c(); //½áÊø×ÜÏß
return(1);
}
/*------------------------------------------------
Ö÷º¯Êý
------------------------------------------------*/
void main (void)
{
unsigned char num1;
unsigned char temp = 0;
unsigned char i,j = 0;
LCD_Init();
LCD_Clear();
LCD_Write_String(6,1,"clock");
while (1) //Ö÷Ñ»·
{
if(flag2 == 1)
{
DelayMs(1);
SPK=!SPK;
Display();
flag2 = 0;
}
if(minute == 0&&second <= 10)
{
if(second%2)
P1 = 0x55;
else
P1 = 0xaa;
}
else
P1 = 0xff;
while(flag1)
{
if(num%2)
SPK=1;
else
SPK = 0;
i++;
if(i==200) {i=0;flag1++;break; }
}
num1=KeyScan();
switch(num1)
{
case 1:hour++;if(hour==24)hour=0; //Õý³£Ê±¼ä Сʱ ¼Ó1
break;
case 2:hour--;if(hour==255)hour=23; //Õý³£Ê±¼ä Сʱ¼õ1
break;
case 3:minute++;if(minute==60)minute=0; //·ÖÖÓ¼Ó1
break;
case 4:minute--;if(minute==255)minute=59; //·ÖÖÓ¼õ1
break;
case 5:
{
Init_Timer0();
IRcvStr(0xae,4,&hour,1);
IRcvStr(0xae,5,&minute,1);
IRcvStr(0xae,6,&second,1);
break;
}
case 6:
{
if(temp%2 == 0)
EA = 1;
else
EA = 0;
temp++;
break;
}
case 7:
hour = 0;minute = 0;second = 0; break;
default:break;
}
}
}
/*------------------------------------------------
uSÑÓʱº¯Êý£¬º¬ÓÐÊäÈë²ÎÊý unsigned char t£¬ÎÞ·µ»ØÖµ
unsigned char ÊǶ¨ÒåÎÞ·ûºÅ×Ö·û±äÁ¿£¬ÆäÖµµÄ·¶Î§ÊÇ
0~255 ÕâÀïʹÓþ§Õñ12M£¬¾«È·ÑÓʱÇëʹÓûã±à,´óÖÂÑÓʱ
³¤¶ÈÈçÏ T=tx2+5 uS
------------------------------------------------*/
void DelayUs2x(unsigned char t)
{
while(--t);
}
/*------------------------------------------------
mSÑÓʱº¯Êý£¬º¬ÓÐÊäÈë²ÎÊý unsigned char t£¬ÎÞ·µ»ØÖµ
unsigned char ÊǶ¨ÒåÎÞ·ûºÅ×Ö·û±äÁ¿£¬ÆäÖµµÄ·¶Î§ÊÇ
0~255 ÕâÀïʹÓþ§Õñ12M£¬¾«È·ÑÓʱÇëʹÓûã±à
------------------------------------------------*/
void DelayMs(unsigned char t)
{
while(t--)
{
//´óÖÂÑÓʱ1mS
DelayUs2x(245);
DelayUs2x(245);
}
}
/*------------------------------------------------
ÏÔʾº¯Êý£¬ÓÃÓÚ¶¯Ì¬É¨ÃèÊýÂë¹Ü
ÊäÈë²ÎÊý FirstBit ±íʾÐèÒªÏÔʾµÄµÚһ룬È縳ֵ2±íʾ´ÓµÚÈý¸öÊýÂë¹Ü¿ªÊ¼ÏÔʾ
ÈçÊäÈë0±íʾ´ÓµÚÒ»¸öÏÔʾ¡£
Num±íʾÐèÒªÏÔʾµÄλÊý£¬ÈçÐèÒªÏÔʾ99Á½Î»ÊýÖµÔò¸ÃÖµÊäÈë2
------------------------------------------------*/
void Display()
{
unsigned char h0,h1, m0,m1 ,s0,s1;
h0 = hour/10+48;
h1 = hour%10+48;
m0 = minute/10+48;
m1 = minute%10+48;
s0 = second/10+48;
s1 = second%10+48;
LCD_Write_Char(3,0,h0);
LCD_Write_Char(4,0,h1);
LCD_Write_Char(5,0,':');
LCD_Write_Char(6,0,m0);
LCD_Write_Char(7,0,m1);
LCD_Write_Char(8,0,':');
LCD_Write_Char(9,0,s0);
LCD_Write_Char(10,0,s1);
ISendStr(0xae,4,&hour,1);
ISendStr(0xae,5,&minute,1);
ISendStr(0xae,6,&second,1);
}
/*------------------------------------------------
¶¨Ê±Æ÷³õʼ»¯×Ó³ÌÐò
------------------------------------------------*/
void Init_Timer0(void)
{
TMOD |= 0x01; //ʹÓÃģʽ1£¬16λ¶¨Ê±Æ÷£¬Ê¹ÓÃ"|"·ûºÅ¿ÉÒÔÔÚʹÓöà¸ö¶¨Ê±Æ÷ʱ²»ÊÜÓ°Ïì
//TH0=0x00; //¸ø¶¨³õÖµ
//TL0=0x00;
EA=1; //×ÜÖжϴò¿ª
ET0=1; //¶¨Ê±Æ÷Öжϴò¿ª
TR0=1; //¶¨Ê±Æ÷¿ª¹Ø´ò¿ª
}
/*------------------------------------------------
¶¨Ê±Æ÷ÖжÏ×Ó³ÌÐò
------------------------------------------------*/
void Timer0_isr(void) interrupt 1
{
TH0=(65536-2000)/256;//ÖØи³Öµ 2ms
TL0=(65536-2000)%256;
num++;
if(num==500) //´óÖÂ1s
{
num=0;
second++;
flag2 = 1;
if(second==60) //Ãëµ½60£¬·ÖÖÓ¼Ó1
{
second=0;
minute++;
if(minute==60)//·ÖÖÓµ½60£¬Ð¡Ê±¼Ó1
{
flag1 = 1;
minute=0;
hour++;
if(hour==24)//Сʱµ½24£¬»ØÁã
hour=0;
}
}
}
}
/*------------------------------------------------
°´¼üɨÃ躯Êý£¬·µ»ØɨÃè¼üÖµ
------------------------------------------------*/
unsigned char KeyScan(void)
{
unsigned char keyvalue;
if(KeyPort!=0xff)
{
DelayMs(10);
if(KeyPort!=0xff)
{
keyvalue=KeyPort;
while(KeyPort!=0xff);
switch(keyvalue)
{
case 0xfe:return 1;break;
case 0xfd:return 2;break;
case 0xfb:return 3;break;
case 0xf7:return 4;break;
case 0xef:return 5;break;
case 0xdf:return 6;break;
case 0xbf:return 7;break;
case 0x7f:return 8;break;
default:return 0;break;
}
}
}
return 0;
}
/*------------------------------------------------
ÅÐ溯Êý
------------------------------------------------*/
bit LCD_Check_Busy(void)
{
DataPort= 0xFF;
RS_CLR;
RW_SET;
EN_CLR;
_nop_();
EN_SET;
return (bit)(DataPort & 0x80);
}
/*------------------------------------------------
дÈëÃüÁÊý
------------------------------------------------*/
void LCD_Write_Com(unsigned char com)
{
// while(LCD_Check_Busy()); //æÔòµÈ´ý
DelayMs(5);
RS_CLR;
RW_CLR;
EN_SET;
DataPort= com;
_nop_();
EN_CLR;
}
/*------------------------------------------------
дÈëÊý¾Ýº¯Êý
------------------------------------------------*/
void LCD_Write_Data(unsigned char Data)
{
//while(LCD_Check_Busy()); //æÔòµÈ´ý
DelayMs(5);
RS_SET;
RW_CLR;
EN_SET;
DataPort= Data;
_nop_();
EN_CLR;
}
/*------------------------------------------------
ÇåÆÁº¯Êý
------------------------------------------------*/
void LCD_Clear(void)
{
LCD_Write_Com(0x01);
DelayMs(5);
}
/*------------------------------------------------
дÈë×Ö·û´®º¯Êý
------------------------------------------------*/
void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s)
{
if (y == 0)
{
LCD_Write_Com(0x80 + x); //±íʾµÚÒ»ÐÐ
}
else
{
LCD_Write_Com(0xC0 + x); //±íʾµÚ¶þÐÐ
}
while (*s)
{
LCD_Write_Data( *s);
s ++;
}
}
/*------------------------------------------------
дÈë×Ö·ûº¯Êý
------------------------------------------------*/
void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data)
{
if (y == 0)
{
LCD_Write_Com(0x80 + x);
}
else
{
LCD_Write_Com(0xC0 + x);
}
LCD_Write_Data( Data);
}
/*------------------------------------------------
³õʼ»¯º¯Êý
------------------------------------------------*/
void LCD_Init(void)
{
LCD_Write_Com(0x38); /*ÏÔʾģʽÉèÖÃ*/
DelayMs(5);
LCD_Write_Com(0x38);
DelayMs(5);
LCD_Write_Com(0x38);
DelayMs(5);
LCD_Write_Com(0x38);
LCD_Write_Com(0x08); /*ÏÔʾ¹Ø±Õ*/
LCD_Write_Com(0x01); /*ÏÔʾÇåÆÁ*/
LCD_Write_Com(0x06); /*ÏÔʾ¹â±êÒƶ¯ÉèÖÃ*/
DelayMs(5);
LCD_Write_Com(0x0C); /*ÏÔʾ¿ª¼°¹â±êÉèÖÃ*/
}
/*------------------------------------------------
Ö÷º¯Êý
------------------------------------------------*/
#include<intrins.h>
#define KeyPort P3//¶¨Òå°´¼ü¶Ë¿Ú
#define _Nop() _nop_() //¶¨Òå¿ÕÖ¸Áî
#define RS_CLR RS=0
#define RS_SET RS=1
#define RW_CLR RW=0
#define RW_SET RW=1
#define EN_CLR EN=0
#define EN_SET EN=1
#define DataPort P0
#define Led Port P1 //¶¨ÒåÊý¾Ý¶Ë¿Ú ³ÌÐòÖÐÓöµ½DataPort ÔòÓÃP0 Ìæ»»
sbit SPK=P2^2;
sbit SDA=P2^1; //Ä£ÄâI2CÊý¾Ý´«ËÍλ
sbit SCL=P2^0; //Ä£ÄâI2CʱÖÓ¿ØÖÆλ
sbit RS = P2^4; //¶¨Òå¶Ë¿Ú
sbit RW = P2^5;
sbit EN = P2^6;
bit ack; //Ó¦´ð±ê־λ
unsigned char hour,minute,second;//¶¨Òåʱ·ÖÃë
unsigned int num ;
unsigned char flag1,flag2,flag3;
unsigned char code dofly_DuanMa[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
unsigned char code dofly_WeiMa[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
unsigned char TempData[8]; //´æ´¢ÏÔʾֵµÄÈ«¾Ö±äÁ¿
void LCD_Init(void);
bit LCD_Check_Busy(void);
void LCD_Write_Com(unsigned char com);
void LCD_Write_Data(unsigned char Data);
void LCD_Clear(void);
void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s);
void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data);
void DelayUs2x(unsigned char t);//us¼¶ÑÓʱº¯ÊýÉùÃ÷
void DelayMs(unsigned char t); //ms¼¶ÑÓʱ
void Display();//ÊýÂë¹ÜÏÔʾº¯Êý
unsigned char KeyScan(void);//¼üÅÌɨÃè
void Init_Timer0(void);//¶¨Ê±Æ÷³õʼ»¯
void ISR_Key(void) interrupt 0 using 1
{
P1=~P1; //½øÈëÖжϳÌÐòÖ´ÐгÌÐò£¬
//´Ëʱ¿ÉÒÔͨ¹ý EA=0Ö¸ÁîÔÝʱ¹ØµôÖжÏ
}
void Start_I2c()
{
SDA=1; //·¢ËÍÆðʼÌõ¼þµÄÊý¾ÝÐźÅ
_Nop();
SCL=1;
_Nop(); //ÆðʼÌõ¼þ½¨Á¢Ê±¼ä´óÓÚ4.7us,ÑÓʱ
_Nop();
_Nop();
_Nop();
_Nop();
SDA=0; //·¢ËÍÆðʼÐźÅ
_Nop(); //ÆðʼÌõ¼þËø¶¨Ê±¼ä´óÓÚ4¦Ì
_Nop();
_Nop();
_Nop();
_Nop();
SCL=0; //ǯסI2C×ÜÏߣ¬×¼±¸·¢ËÍ»ò½ÓÊÕÊý¾Ý
_Nop();
_Nop();
}
/*------------------------------------------------
½áÊø×ÜÏß
------------------------------------------------*/
void Stop_I2c()
{
SDA=0; //·¢ËͽáÊøÌõ¼þµÄÊý¾ÝÐźÅ
_Nop(); //·¢ËͽáÊøÌõ¼þµÄʱÖÓÐźÅ
SCL=1; //½áÊøÌõ¼þ½¨Á¢Ê±¼ä´óÓÚ4¦Ì
_Nop();
_Nop();
_Nop();
_Nop();
_Nop();
SDA=1; //·¢ËÍI2C×ÜÏß½áÊøÐźÅ
_Nop();
_Nop();
_Nop();
_Nop();
}
/*----------------------------------------------------------------
×Ö½ÚÊý¾Ý´«Ëͺ¯Êý
º¯ÊýÔÐÍ: void SendByte(unsigned char c);
¹¦ÄÜ: ½«Êý¾Ýc·¢ËͳöÈ¥,¿ÉÒÔÊǵØÖ·,Ò²¿ÉÒÔÊÇÊý¾Ý,·¢ÍêºóµÈ´ýÓ¦´ð,²¢¶Ô
´Ë״̬λ½øÐвÙ×÷.(²»Ó¦´ð»ò·ÇÓ¦´ð¶¼Ê¹ack=0 ¼Ù)
·¢ËÍÊý¾ÝÕý³££¬ack=1; ack=0±íʾ±»¿ØÆ÷ÎÞÓ¦´ð»òË𻵡£
------------------------------------------------------------------*/
void SendByte(unsigned char c)
{
unsigned char BitCnt;
for(BitCnt=0;BitCnt<8;BitCnt++) //Òª´«Ë͵ÄÊý¾Ý³¤¶ÈΪ8λ
{
if((c<<BitCnt)&0x80)SDA=1; //ÅжϷ¢ËÍλ
else SDA=0;
_Nop();
SCL=1; //ÖÃʱÖÓÏßΪ¸ß£¬Í¨Öª±»¿ØÆ÷¿ªÊ¼½ÓÊÕÊý¾Ýλ
_Nop();
_Nop(); //±£Ö¤Ê±ÖӸߵçƽÖÜÆÚ´óÓÚ4¦Ì
_Nop();
_Nop();
_Nop();
SCL=0;
}
_Nop();
_Nop();
SDA=1; //8λ·¢ËÍÍêºóÊÍ·ÅÊý¾ÝÏߣ¬×¼±¸½ÓÊÕÓ¦´ðλ
_Nop();
_Nop();
SCL=1;
_Nop();
_Nop();
_Nop();
if(SDA==1)ack=0;
else ack=1; //ÅжÏÊÇ·ñ½ÓÊÕµ½Ó¦´ðÐźÅ
SCL=0;
_Nop();
_Nop();
}
/*----------------------------------------------------------------
×Ö½ÚÊý¾Ý´«Ëͺ¯Êý
º¯ÊýÔÐÍ: unsigned char RcvByte();
¹¦ÄÜ: ÓÃÀ´½ÓÊÕ´ÓÆ÷¼þ´«À´µÄÊý¾Ý,²¢ÅжÏ×ÜÏß´íÎó(²»·¢Ó¦´ðÐźÅ)£¬
·¢ÍêºóÇëÓÃÓ¦´ðº¯Êý¡£
------------------------------------------------------------------*/
unsigned char RcvByte()
{
unsigned char retc;
unsigned char BitCnt;
retc=0;
SDA=1; //ÖÃÊý¾ÝÏßΪÊäÈ뷽ʽ
for(BitCnt=0;BitCnt<8;BitCnt++)
{
_Nop();
SCL=0; //ÖÃʱÖÓÏßΪµÍ£¬×¼±¸½ÓÊÕÊý¾Ýλ
_Nop();
_Nop(); //ʱÖӵ͵çƽÖÜÆÚ´óÓÚ4.7us
_Nop();
_Nop();
_Nop();
SCL=1; //ÖÃʱÖÓÏßΪ¸ßʹÊý¾ÝÏßÉÏÊý¾ÝÓÐЧ
_Nop();
_Nop();
retc=retc<<1;
if(SDA==1)retc=retc+1; //¶ÁÊý¾Ýλ,½ÓÊÕµÄÊý¾Ýλ·ÅÈëretcÖÐ
_Nop();
_Nop();
}
SCL=0;
_Nop();
_Nop();
return(retc);
}
/*----------------------------------------------------------------
Ó¦´ð×Óº¯Êý
ÔÐÍ: void Ack_I2c(void);
----------------------------------------------------------------*/
void Ack_I2c(void)
{
SDA=0;
_Nop();
_Nop();
_Nop();
SCL=1;
_Nop();
_Nop(); //ʱÖӵ͵çƽÖÜÆÚ´óÓÚ4¦Ì
_Nop();
_Nop();
_Nop();
SCL=0; //ÇåʱÖÓÏߣ¬Ç¯×¡I2C×ÜÏßÒÔ±ã¼ÌÐø½ÓÊÕ
_Nop();
_Nop();
}
/*----------------------------------------------------------------
·ÇÓ¦´ð×Óº¯Êý
ÔÐÍ: void NoAck_I2c(void);
----------------------------------------------------------------*/
void NoAck_I2c(void)
{
SDA=1;
_Nop();
_Nop();
_Nop();
SCL=1;
_Nop();
_Nop(); //ʱÖӵ͵çƽÖÜÆÚ´óÓÚ4¦Ì
_Nop();
_Nop();
_Nop();
SCL=0; //ÇåʱÖÓÏߣ¬Ç¯×¡I2C×ÜÏßÒÔ±ã¼ÌÐø½ÓÊÕ
_Nop();
_Nop();
}
/*----------------------------------------------------------------
ÏòÎÞ×ÓµØÖ·Æ÷¼þ·¢ËÍ×Ö½ÚÊý¾Ýº¯Êý
º¯ÊýÔÐÍ: bit ISendByte(unsigned char sla,ucahr c);
¹¦ÄÜ: ´ÓÆô¶¯×ÜÏßµ½·¢Ë͵ØÖ·£¬Êý¾Ý£¬½áÊø×ÜÏßµÄÈ«¹ý³Ì,´ÓÆ÷¼þµØÖ·sla.
Èç¹û·µ»Ø1±íʾ²Ù×÷³É¹¦£¬·ñÔò²Ù×÷ÓÐÎó¡£
×¢Ò⣺ ʹÓÃÇ°±ØÐëÒѽáÊø×ÜÏß¡£
----------------------------------------------------------------*/
/*bit ISendByte(unsigned char sla,unsigned char c)
{
Start_I2c(); //Æô¶¯×ÜÏß
SendByte(sla); //·¢ËÍÆ÷¼þµØÖ·
if(ack==0)return(0);
SendByte(c); //·¢ËÍÊý¾Ý
if(ack==0)return(0);
Stop_I2c(); //½áÊø×ÜÏß
return(1);
}
*/
/*----------------------------------------------------------------
ÏòÓÐ×ÓµØÖ·Æ÷¼þ·¢ËͶà×Ö½ÚÊý¾Ýº¯Êý
º¯ÊýÔÐÍ: bit ISendStr(unsigned char sla,unsigned char suba,ucahr *s,unsigned char no);
¹¦ÄÜ: ´ÓÆô¶¯×ÜÏßµ½·¢Ë͵ØÖ·£¬×ÓµØÖ·,Êý¾Ý£¬½áÊø×ÜÏßµÄÈ«¹ý³Ì,´ÓÆ÷¼þ
µØÖ·sla£¬×ÓµØÖ·suba£¬·¢ËÍÄÚÈÝÊÇsÖ¸ÏòµÄÄÚÈÝ£¬·¢ËÍno¸ö×Ö½Ú¡£
Èç¹û·µ»Ø1±íʾ²Ù×÷³É¹¦£¬·ñÔò²Ù×÷ÓÐÎó¡£
×¢Ò⣺ ʹÓÃÇ°±ØÐëÒѽáÊø×ÜÏß¡£
----------------------------------------------------------------*/
bit ISendStr(unsigned char sla,unsigned char suba,unsigned char *s,unsigned char no)
{
unsigned char i;
Start_I2c(); //Æô¶¯×ÜÏß
SendByte(sla); //·¢ËÍÆ÷¼þµØÖ·
if(ack==0)return(0);
SendByte(suba); //·¢ËÍÆ÷¼þ×ÓµØÖ·
if(ack==0)return(0);
for(i=0;i<no;i++)
{
SendByte(*s); //·¢ËÍÊý¾Ý
DelayMs(1);
if(ack==0)return(0);
s++;
}
Stop_I2c(); //½áÊø×ÜÏß
return(1);
}
/*----------------------------------------------------------------
ÏòÎÞ×ÓµØÖ·Æ÷¼þ¶Á×Ö½ÚÊý¾Ýº¯Êý
º¯ÊýÔÐÍ: bit IRcvByte(unsigned char sla,ucahr *c);
¹¦ÄÜ: ´ÓÆô¶¯×ÜÏßµ½·¢Ë͵ØÖ·£¬¶ÁÊý¾Ý£¬½áÊø×ÜÏßµÄÈ«¹ý³Ì,´ÓÆ÷¼þµØ
Ö·sla£¬·µ»ØÖµÔÚc.
Èç¹û·µ»Ø1±íʾ²Ù×÷³É¹¦£¬·ñÔò²Ù×÷ÓÐÎó¡£
×¢Ò⣺ ʹÓÃÇ°±ØÐëÒѽáÊø×ÜÏß¡£
----------------------------------------------------------------*/
/*bit IRcvByte(unsigned char sla,unsigned char *c)
{
Start_I2c(); //Æô¶¯×ÜÏß
SendByte(sla+1); //·¢ËÍÆ÷¼þµØÖ·
if(ack==0)return(0);
*c=RcvByte(); //¶ÁÈ¡Êý¾Ý
NoAck_I2c(); //·¢ËͷǾʹðλ
Stop_I2c(); //½áÊø×ÜÏß
return(1);
}
*/
/*----------------------------------------------------------------
ÏòÓÐ×ÓµØÖ·Æ÷¼þ¶ÁÈ¡¶à×Ö½ÚÊý¾Ýº¯Êý
º¯ÊýÔÐÍ: bit ISendStr(unsigned char sla,unsigned char suba,ucahr *s,unsigned char no);
¹¦ÄÜ: ´ÓÆô¶¯×ÜÏßµ½·¢Ë͵ØÖ·£¬×ÓµØÖ·,¶ÁÊý¾Ý£¬½áÊø×ÜÏßµÄÈ«¹ý³Ì,´ÓÆ÷¼þ
µØÖ·sla£¬×ÓµØÖ·suba£¬¶Á³öµÄÄÚÈÝ·ÅÈësÖ¸ÏòµÄ´æ´¢Çø£¬¶Áno¸ö×Ö½Ú¡£
Èç¹û·µ»Ø1±íʾ²Ù×÷³É¹¦£¬·ñÔò²Ù×÷ÓÐÎó¡£
×¢Ò⣺ ʹÓÃÇ°±ØÐëÒѽáÊø×ÜÏß¡£
----------------------------------------------------------------*/
bit IRcvStr(unsigned char sla,unsigned char suba,unsigned char *s,unsigned char no)
{
unsigned char i;
Start_I2c(); //Æô¶¯×ÜÏß
SendByte(sla); //·¢ËÍÆ÷¼þµØÖ·
if(ack==0)return(0);
SendByte(suba); //·¢ËÍÆ÷¼þ×ÓµØÖ·
if(ack==0)return(0);
Start_I2c();
SendByte(sla+1);
if(ack==0)return(0);
for(i=0;i<no-1;i++)
{
*s=RcvByte(); //·¢ËÍÊý¾Ý
Ack_I2c(); //·¢Ë;ʹðλ
s++;
}
*s=RcvByte();
NoAck_I2c(); //·¢ËÍ·ÇӦλ
Stop_I2c(); //½áÊø×ÜÏß
return(1);
}
/*------------------------------------------------
Ö÷º¯Êý
------------------------------------------------*/
void main (void)
{
unsigned char num1;
unsigned char temp = 0;
unsigned char i,j = 0;
LCD_Init();
LCD_Clear();
LCD_Write_String(6,1,"clock");
while (1) //Ö÷Ñ»·
{
if(flag2 == 1)
{
DelayMs(1);
SPK=!SPK;
Display();
flag2 = 0;
}
if(minute == 0&&second <= 10)
{
if(second%2)
P1 = 0x55;
else
P1 = 0xaa;
}
else
P1 = 0xff;
while(flag1)
{
if(num%2)
SPK=1;
else
SPK = 0;
i++;
if(i==200) {i=0;flag1++;break; }
}
num1=KeyScan();
switch(num1)
{
case 1:hour++;if(hour==24)hour=0; //Õý³£Ê±¼ä Сʱ ¼Ó1
break;
case 2:hour--;if(hour==255)hour=23; //Õý³£Ê±¼ä Сʱ¼õ1
break;
case 3:minute++;if(minute==60)minute=0; //·ÖÖÓ¼Ó1
break;
case 4:minute--;if(minute==255)minute=59; //·ÖÖÓ¼õ1
break;
case 5:
{
Init_Timer0();
IRcvStr(0xae,4,&hour,1);
IRcvStr(0xae,5,&minute,1);
IRcvStr(0xae,6,&second,1);
break;
}
case 6:
{
if(temp%2 == 0)
EA = 1;
else
EA = 0;
temp++;
break;
}
case 7:
hour = 0;minute = 0;second = 0; break;
default:break;
}
}
}
/*------------------------------------------------
uSÑÓʱº¯Êý£¬º¬ÓÐÊäÈë²ÎÊý unsigned char t£¬ÎÞ·µ»ØÖµ
unsigned char ÊǶ¨ÒåÎÞ·ûºÅ×Ö·û±äÁ¿£¬ÆäÖµµÄ·¶Î§ÊÇ
0~255 ÕâÀïʹÓþ§Õñ12M£¬¾«È·ÑÓʱÇëʹÓûã±à,´óÖÂÑÓʱ
³¤¶ÈÈçÏ T=tx2+5 uS
------------------------------------------------*/
void DelayUs2x(unsigned char t)
{
while(--t);
}
/*------------------------------------------------
mSÑÓʱº¯Êý£¬º¬ÓÐÊäÈë²ÎÊý unsigned char t£¬ÎÞ·µ»ØÖµ
unsigned char ÊǶ¨ÒåÎÞ·ûºÅ×Ö·û±äÁ¿£¬ÆäÖµµÄ·¶Î§ÊÇ
0~255 ÕâÀïʹÓþ§Õñ12M£¬¾«È·ÑÓʱÇëʹÓûã±à
------------------------------------------------*/
void DelayMs(unsigned char t)
{
while(t--)
{
//´óÖÂÑÓʱ1mS
DelayUs2x(245);
DelayUs2x(245);
}
}
/*------------------------------------------------
ÏÔʾº¯Êý£¬ÓÃÓÚ¶¯Ì¬É¨ÃèÊýÂë¹Ü
ÊäÈë²ÎÊý FirstBit ±íʾÐèÒªÏÔʾµÄµÚһ룬È縳ֵ2±íʾ´ÓµÚÈý¸öÊýÂë¹Ü¿ªÊ¼ÏÔʾ
ÈçÊäÈë0±íʾ´ÓµÚÒ»¸öÏÔʾ¡£
Num±íʾÐèÒªÏÔʾµÄλÊý£¬ÈçÐèÒªÏÔʾ99Á½Î»ÊýÖµÔò¸ÃÖµÊäÈë2
------------------------------------------------*/
void Display()
{
unsigned char h0,h1, m0,m1 ,s0,s1;
h0 = hour/10+48;
h1 = hour%10+48;
m0 = minute/10+48;
m1 = minute%10+48;
s0 = second/10+48;
s1 = second%10+48;
LCD_Write_Char(3,0,h0);
LCD_Write_Char(4,0,h1);
LCD_Write_Char(5,0,':');
LCD_Write_Char(6,0,m0);
LCD_Write_Char(7,0,m1);
LCD_Write_Char(8,0,':');
LCD_Write_Char(9,0,s0);
LCD_Write_Char(10,0,s1);
ISendStr(0xae,4,&hour,1);
ISendStr(0xae,5,&minute,1);
ISendStr(0xae,6,&second,1);
}
/*------------------------------------------------
¶¨Ê±Æ÷³õʼ»¯×Ó³ÌÐò
------------------------------------------------*/
void Init_Timer0(void)
{
TMOD |= 0x01; //ʹÓÃģʽ1£¬16λ¶¨Ê±Æ÷£¬Ê¹ÓÃ"|"·ûºÅ¿ÉÒÔÔÚʹÓöà¸ö¶¨Ê±Æ÷ʱ²»ÊÜÓ°Ïì
//TH0=0x00; //¸ø¶¨³õÖµ
//TL0=0x00;
EA=1; //×ÜÖжϴò¿ª
ET0=1; //¶¨Ê±Æ÷Öжϴò¿ª
TR0=1; //¶¨Ê±Æ÷¿ª¹Ø´ò¿ª
}
/*------------------------------------------------
¶¨Ê±Æ÷ÖжÏ×Ó³ÌÐò
------------------------------------------------*/
void Timer0_isr(void) interrupt 1
{
TH0=(65536-2000)/256;//ÖØи³Öµ 2ms
TL0=(65536-2000)%256;
num++;
if(num==500) //´óÖÂ1s
{
num=0;
second++;
flag2 = 1;
if(second==60) //Ãëµ½60£¬·ÖÖÓ¼Ó1
{
second=0;
minute++;
if(minute==60)//·ÖÖÓµ½60£¬Ð¡Ê±¼Ó1
{
flag1 = 1;
minute=0;
hour++;
if(hour==24)//Сʱµ½24£¬»ØÁã
hour=0;
}
}
}
}
/*------------------------------------------------
°´¼üɨÃ躯Êý£¬·µ»ØɨÃè¼üÖµ
------------------------------------------------*/
unsigned char KeyScan(void)
{
unsigned char keyvalue;
if(KeyPort!=0xff)
{
DelayMs(10);
if(KeyPort!=0xff)
{
keyvalue=KeyPort;
while(KeyPort!=0xff);
switch(keyvalue)
{
case 0xfe:return 1;break;
case 0xfd:return 2;break;
case 0xfb:return 3;break;
case 0xf7:return 4;break;
case 0xef:return 5;break;
case 0xdf:return 6;break;
case 0xbf:return 7;break;
case 0x7f:return 8;break;
default:return 0;break;
}
}
}
return 0;
}
/*------------------------------------------------
ÅÐ溯Êý
------------------------------------------------*/
bit LCD_Check_Busy(void)
{
DataPort= 0xFF;
RS_CLR;
RW_SET;
EN_CLR;
_nop_();
EN_SET;
return (bit)(DataPort & 0x80);
}
/*------------------------------------------------
дÈëÃüÁÊý
------------------------------------------------*/
void LCD_Write_Com(unsigned char com)
{
// while(LCD_Check_Busy()); //æÔòµÈ´ý
DelayMs(5);
RS_CLR;
RW_CLR;
EN_SET;
DataPort= com;
_nop_();
EN_CLR;
}
/*------------------------------------------------
дÈëÊý¾Ýº¯Êý
------------------------------------------------*/
void LCD_Write_Data(unsigned char Data)
{
//while(LCD_Check_Busy()); //æÔòµÈ´ý
DelayMs(5);
RS_SET;
RW_CLR;
EN_SET;
DataPort= Data;
_nop_();
EN_CLR;
}
/*------------------------------------------------
ÇåÆÁº¯Êý
------------------------------------------------*/
void LCD_Clear(void)
{
LCD_Write_Com(0x01);
DelayMs(5);
}
/*------------------------------------------------
дÈë×Ö·û´®º¯Êý
------------------------------------------------*/
void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s)
{
if (y == 0)
{
LCD_Write_Com(0x80 + x); //±íʾµÚÒ»ÐÐ
}
else
{
LCD_Write_Com(0xC0 + x); //±íʾµÚ¶þÐÐ
}
while (*s)
{
LCD_Write_Data( *s);
s ++;
}
}
/*------------------------------------------------
дÈë×Ö·ûº¯Êý
------------------------------------------------*/
void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data)
{
if (y == 0)
{
LCD_Write_Com(0x80 + x);
}
else
{
LCD_Write_Com(0xC0 + x);
}
LCD_Write_Data( Data);
}
/*------------------------------------------------
³õʼ»¯º¯Êý
------------------------------------------------*/
void LCD_Init(void)
{
LCD_Write_Com(0x38); /*ÏÔʾģʽÉèÖÃ*/
DelayMs(5);
LCD_Write_Com(0x38);
DelayMs(5);
LCD_Write_Com(0x38);
DelayMs(5);
LCD_Write_Com(0x38);
LCD_Write_Com(0x08); /*ÏÔʾ¹Ø±Õ*/
LCD_Write_Com(0x01); /*ÏÔʾÇåÆÁ*/
LCD_Write_Com(0x06); /*ÏÔʾ¹â±êÒƶ¯ÉèÖÃ*/
DelayMs(5);
LCD_Write_Com(0x0C); /*ÏÔʾ¿ª¼°¹â±êÉèÖÃ*/
}
/*------------------------------------------------
Ö÷º¯Êý
------------------------------------------------*/
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