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单片机C51 LED点阵显示驱动程序设计

albert•2023-4-26•CMS教程•阅读14

单片机C51 LED点阵显示驱动程序设计,第1张

点阵原理就是一个LED的两端都接IO，当正极为1，负极为0时点亮相应的LED。

下面是8×8的LED点阵程序，参考一下吧

#include<reg51h>

#define uchar unsigned char

#define uint unsigned int

uchar code TAB[]={

0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00,

0x00,0x82,0xFE,0x82,0x80,0xC0,0x00,0x00,

0x00,0x7C,0x82,0x82,0x82,0x7C,0x00,0x00,

0x02,0x0E,0x72,0x80,0x70,0x0E,0x02,0x00,

0x00,0x82,0xFE,0x92,0xBA,0x82,0xC6,0x00,

0X00,0X00,0X00,0X00,0X00,0X00,0X00,0X00

};

/delay(uint t)

{

uint a,b;

for(a=0;a<t;a++)

for(b=0;b<110;b++);

} /

void main(void)

{

uint i,j,xx;

uchar bittemp=0x01;

while(1)

{

for(i=0;i<40;i++)

{

for(xx=0;xx<500;xx++)

{

bittemp=0x80;

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

{

P2=0x00; //消隐

P0= ~TAB[i+8-j];

P2 = bittemp;

bittemp >>= 1;

}

}

}

}

}

ORG 0000H

AJMP MAIN

MAIN:

MOV P1,#05H

CALL DELAY

MOV P1,#0AH

CALL DELAY

MOV P1,#50H

CALL DELAY

MOV P1,#55H

CALL DELAY

MOV P1,#0AAH

CALL DELAY

MOV P1,#0FFH

CALL DELAY

MOV P1,#00H

CALL DELAY

AJMP MAIN

DELAY:

MOV R3,#1000

BC: MOV R2,#995

DEC R2

DJNZ R2,$

DJNZ R3,BC

RET

END

;说明：该程序采用P1口作为发光二极管的控制，阳极接P1口，阴极接地即可

单片机c语言下lcd多级菜单的一种实现方法可通过“向上”、“向下”、“回退”、“确认”4 个键或遥控器来实现对菜单的选择。具体功能:“向上”键:在本层菜单的项目中向上移动进行选择;“向下”键:在本层菜单的项目中向下移动进行选择;“回退”键:取消本层的菜单设置,返回上层菜单;“确认”键:确认本层的菜单设置,进入下级菜单。可根据用户在菜单中的选择项对测点进行某些设置,或者进行某些特殊的显示,例如对某个测点的实时曲线显示等。程序设计根据需求,首先建立一个结构,并定义一个结构变量kbdtabst ruct 。结构变量就是把多个不同类型的变量结合在一起形成的一个组合型变量,构成一个结构的各个变量称为结构元素。该结构中共有6 个结构元素,分别是5 个字符型和1 个指针变量,5 个字符型变量分别为当前及各个按键的索引号,也就是作的状态号,最后1 个指针变量指向需执行函数。这样就可以做一个结构数组,在结构数组里为每一个菜单项编制一个单独的函数,并根据菜单的嵌套顺序排好本菜单项的索引号,以及本级菜单项的上、下卷动的索引号和上、下级菜单的索引号。具体程序如下所述:typedef st ruct{　ucharkeystateindex ; / / 当前状态索引号　ucharkeydnstate ; / / 按下“向下”键时转向的状态索引号　ucharkeyupstate ; / / 按下“向上”键时转向的状态索引号　ucharkeycrstate ; / / 按下“回车”键时转向的状态索引号　ucharkeybackstate ; / / 按下“退回”键时转向的状态索引号　void( 3 currentoperate) ( ) ; / / 当前状态应该执行的功能作}kbdtabst ruct ;# define size - of keybd - menu 55 / / 菜单总长度kbdtabst ruct code keytab[ size - of - keybd - menu ] ={　{0 ,0 ,0 ,1 ,0 , ( 3 mainjob1) } ,　{1 ,7 ,2 ,8 ,0 , ( 3 dsp point) } , / / 第一层　{2 ,1 ,3 ,8 ,0 , ( 3 dspcurve) ) , / / 第一层</p><p>　{3 ,2 ,4 ,36 ,0 , ( 3 dsp kout) } , / / 第一层　{4 ,3 ,5 ,50 ,0 , ( 3 disclosedown) } , / / 第一层程序设计根据需求,首先建立一个结构,并定义一个结构变量kbdtabst ruct 。结构变量就是把多个不同类型的变量结合在一起形成的一个组合型变量,构成一个结构的各个变量称为结构元素。该结构中共有6 个结构元素,分别是5 个字符型和1 个指针变量,5 个字符型变量分别为当前及各个按键的索引号,也就是作的状态号,最后1 个指针变量指向需执行函数。这样就可以做一个结构数组,在结构数组里为每一个菜单项编制一个单独的函数,并根据菜单的嵌套顺序排好本菜单项的索引号,以及本级菜单项的上、下卷动的索引号和上、下级菜单的索引号。具体程序如下所述:typedef st ruct{　ucharkeystateindex ; / / 当前状态索引号　ucharkeydnstate ; / / 按下“向下”键时转向的状态索引号　ucharkeyupstate ; / / 按下“向上”键时转向的状态索引号　ucharkeycrstate ; / / 按下“回车”键时转向的状态索引号　ucharkeybackstate ; / / 按下“退回”键时转向的状态索引号　void( 3 currentoperate) ( ) ; / / 当前状态应该执行的功能作}kbdtabst ruct ;# define size - of keybd - menu 55 / / 菜单总长度kbdtabst ruct code keytab[ size - of - keybd - menu ] ={　{0 ,0 ,0 ,1 ,0 , ( 3 mainjob1) } ,　{1 ,7 ,2 ,8 ,0 , ( 3 dsp point) } , / / 第一层　{2 ,1 ,3 ,8 ,0 , ( 3 dspcurve) ) , / / 第一层</p><p>　{3 ,2 ,4 ,36 ,0 , ( 3 dsp kout) } , / / 第一层　{4 ,3 ,5 ,50 ,0 , ( 3 disclosedown) } , / / 第一层下面是一个具体的例子：unsigned char tempin,tempout,temprun;unsigned char Key_Value();unsigned char Change_Value(unsigned char);void Delay_1(unsigned int m);void Run_Satus();char MainMenuTitle = "主菜单";const char MainMenuItems[] = {"1室内温度调整","2室外温度调整","3运行时间调整","4ESC退出",};TMenu MainMenu;void OnSelectMainMenu(int index){if (index < 0 || index >= sizeof(MainMenuItems) / sizeof(char )) return;ClearScreen();switch (index) {case 0:TextOut(0, 1, "室内调整开始 ");tempin=Change_Value(tempin);TextOut(0, 1, "室内调整完毕");Delay_1(300000);break;case 1:TextOut(0, 1, "室外调整开始 ");tempout=Change_Value(tempout);TextOut(0, 1, "室外调整完毕");Delay_1(300000);break;case 2:TextOut(0, 1, "运行时间调整开始");tempout=Change_Value(temprun);TextOut(0, 1, "运行时间完毕");Delay_1(300000);break;case 3:break;}ClearScreen();}UINT OnMainMenuOk(void arg){TMenu pMenu = (TMenu )arg;if (pMenu) OnSelectMainMenu(pMenu->Current);return 0;}UINT OnMainMenuCancel(void arg){TMenu pMenu = (TMenu )arg;if (pMenu) {CloseMenu(pMenu);}return 0;}UINT OnMainMenuOtherKey(void arg){TMenu pMenu = (TMenu )arg;char key;if (pMenu) {key = pMenu->EventArg;OnSelectMainMenu(key - '1');DrawMenu(pMenu);}return 0;}void InitMenu(){InitializeMenu(&MainMenu, MainMenuTitle, MainMenuItems, sizeof(MainMenuItems) / sizeof(char ));MainMenuOnOk = OnMainMenuOk;MainMenuOnOtherKey = OnMainMenuOtherKey;MainMenuOnCancel = OnMainMenuCancel;}unsigned char Key_Value(){unsigned char KeyTemp;KeyTemp=GetKey();switch(KeyTemp){case(VK_ESCAPE):return(0);break;case(VK_ENTER):return(1);break;case(VK_UP):return(2);break;case(VK_DOWN):return(3);break;}}unsigned char Change_Value(unsigned char temp2){unsigned char temp3;temp3=temp2;while((Key_Value()!=0)&&(Key_Value()!=1)){if(Key_Value()==2)temp3++;else if(Key_Value()==3)temp3--;ClearLine(1);TextOut(0, 1, "调整状态%d", temp3);}if(Key_Value()==1)return(temp3);else if(Key_Value()==0) return(temp2);}void Delay_1(unsigned int m){while(m--);}void Run_Satus(){ClearScreen();TextOut(0, 0, "室内温度%d",tempin);TextOut(0, 1, "室外温度%d",tempout);TextOut(0, 2, "运行时间%d",temprun);TextOut(0, 3, "ENTER 进入调整");}void tmain(){tempin=30;tempout=30;temprun=30;unsigned char key;InitMenu();while(1){Run_Satus();key=GetKey();if(key==VK_ENTER)ShowMenu(&MainMenu);}}

//C51写的公历转农历和星期

#define uchar unsigned char

#define uint unsigned int

#include <intrinsh>

/

公历年对应的农历数据,每年三字节,

格式第一字节BIT7-4 位表示闰月月份,值为0 为无闰月,BIT3-0 对应农历第1-4 月的大小

第二字节BIT7-0 对应农历第5-12 月大小,第三字节BIT7 表示农历第13 个月大小

月份对应的位为1 表示本农历月大(30 天),为0 表示小(29 天)

第三字节BIT6-5 表示春节的公历月份,BIT4-0 表示春节的公历日期

/

code uchar year_code[597] = {

0x04,0xAe,0x53, //1901 0

0x0A,0x57,0x48, //1902 3

0x55,0x26,0xBd, //1903 6

0x0d,0x26,0x50, //1904 9

0x0d,0x95,0x44, //1905 12

0x46,0xAA,0xB9, //1906 15

0x05,0x6A,0x4d, //1907 18

0x09,0xAd,0x42, //1908 21

0x24,0xAe,0xB6, //1909

0x04,0xAe,0x4A, //1910

0x6A,0x4d,0xBe, //1911

0x0A,0x4d,0x52, //1912

0x0d,0x25,0x46, //1913

0x5d,0x52,0xBA, //1914

0x0B,0x54,0x4e, //1915

0x0d,0x6A,0x43, //1916

0x29,0x6d,0x37, //1917

0x09,0x5B,0x4B, //1918

0x74,0x9B,0xC1, //1919

0x04,0x97,0x54, //1920

0x0A,0x4B,0x48, //1921

0x5B,0x25,0xBC, //1922

0x06,0xA5,0x50, //1923

0x06,0xd4,0x45, //1924

0x4A,0xdA,0xB8, //1925

0x02,0xB6,0x4d, //1926

0x09,0x57,0x42, //1927

0x24,0x97,0xB7, //1928

0x04,0x97,0x4A, //1929

0x66,0x4B,0x3e, //1930

0x0d,0x4A,0x51, //1931

0x0e,0xA5,0x46, //1932

0x56,0xd4,0xBA, //1933

0x05,0xAd,0x4e, //1934

0x02,0xB6,0x44, //1935

0x39,0x37,0x38, //1936

0x09,0x2e,0x4B, //1937

0x7C,0x96,0xBf, //1938

0x0C,0x95,0x53, //1939

0x0d,0x4A,0x48, //1940

0x6d,0xA5,0x3B, //1941

0x0B,0x55,0x4f, //1942

0x05,0x6A,0x45, //1943

0x4A,0xAd,0xB9, //1944

0x02,0x5d,0x4d, //1945

0x09,0x2d,0x42, //1946

0x2C,0x95,0xB6, //1947

0x0A,0x95,0x4A, //1948

0x7B,0x4A,0xBd, //1949

0x06,0xCA,0x51, //1950

0x0B,0x55,0x46, //1951

0x55,0x5A,0xBB, //1952

0x04,0xdA,0x4e, //1953

0x0A,0x5B,0x43, //1954

0x35,0x2B,0xB8, //1955

0x05,0x2B,0x4C, //1956

0x8A,0x95,0x3f, //1957

0x0e,0x95,0x52, //1958

0x06,0xAA,0x48, //1959

0x7A,0xd5,0x3C, //1960

0x0A,0xB5,0x4f, //1961

0x04,0xB6,0x45, //1962

0x4A,0x57,0x39, //1963

0x0A,0x57,0x4d, //1964

0x05,0x26,0x42, //1965

0x3e,0x93,0x35, //1966

0x0d,0x95,0x49, //1967

0x75,0xAA,0xBe, //1968

0x05,0x6A,0x51, //1969

0x09,0x6d,0x46, //1970

0x54,0xAe,0xBB, //1971

0x04,0xAd,0x4f, //1972

0x0A,0x4d,0x43, //1973

0x4d,0x26,0xB7, //1974

0x0d,0x25,0x4B, //1975

0x8d,0x52,0xBf, //1976

0x0B,0x54,0x52, //1977

0x0B,0x6A,0x47, //1978

0x69,0x6d,0x3C, //1979

0x09,0x5B,0x50, //1980

0x04,0x9B,0x45, //1981

0x4A,0x4B,0xB9, //1982

0x0A,0x4B,0x4d, //1983

0xAB,0x25,0xC2, //1984

0x06,0xA5,0x54, //1985

0x06,0xd4,0x49, //1986

0x6A,0xdA,0x3d, //1987

0x0A,0xB6,0x51, //1988

0x09,0x37,0x46, //1989

0x54,0x97,0xBB, //1990

0x04,0x97,0x4f, //1991

0x06,0x4B,0x44, //1992

0x36,0xA5,0x37, //1993

0x0e,0xA5,0x4A, //1994

0x86,0xB2,0xBf, //1995

0x05,0xAC,0x53, //1996

0x0A,0xB6,0x47, //1997

0x59,0x36,0xBC, //1998

0x09,0x2e,0x50, //1999 294

0x0C,0x96,0x45, //2000 297

0x4d,0x4A,0xB8, //2001

0x0d,0x4A,0x4C, //2002

0x0d,0xA5,0x41, //2003

0x25,0xAA,0xB6, //2004

0x05,0x6A,0x49, //2005

0x7A,0xAd,0xBd, //2006

0x02,0x5d,0x52, //2007

0x09,0x2d,0x47, //2008

0x5C,0x95,0xBA, //2009

0x0A,0x95,0x4e, //2010

0x0B,0x4A,0x43, //2011

0x4B,0x55,0x37, //2012

0x0A,0xd5,0x4A, //2013

0x95,0x5A,0xBf, //2014

0x04,0xBA,0x53, //2015

0x0A,0x5B,0x48, //2016

0x65,0x2B,0xBC, //2017

0x05,0x2B,0x50, //2018

0x0A,0x93,0x45, //2019

0x47,0x4A,0xB9, //2020

0x06,0xAA,0x4C, //2021

0x0A,0xd5,0x41, //2022

0x24,0xdA,0xB6, //2023

0x04,0xB6,0x4A, //2024

0x69,0x57,0x3d, //2025

0x0A,0x4e,0x51, //2026

0x0d,0x26,0x46, //2027

0x5e,0x93,0x3A, //2028

0x0d,0x53,0x4d, //2029

0x05,0xAA,0x43, //2030

0x36,0xB5,0x37, //2031

0x09,0x6d,0x4B, //2032

0xB4,0xAe,0xBf, //2033

0x04,0xAd,0x53, //2034

0x0A,0x4d,0x48, //2035

0x6d,0x25,0xBC, //2036

0x0d,0x25,0x4f, //2037

0x0d,0x52,0x44, //2038

0x5d,0xAA,0x38, //2039

0x0B,0x5A,0x4C, //2040

0x05,0x6d,0x41, //2041

0x24,0xAd,0xB6, //2042

0x04,0x9B,0x4A, //2043

0x7A,0x4B,0xBe, //2044

0x0A,0x4B,0x51, //2045

0x0A,0xA5,0x46, //2046

0x5B,0x52,0xBA, //2047

0x06,0xd2,0x4e, //2048

0x0A,0xdA,0x42, //2049

0x35,0x5B,0x37, //2050

0x09,0x37,0x4B, //2051

0x84,0x97,0xC1, //2052

0x04,0x97,0x53, //2053

0x06,0x4B,0x48, //2054

0x66,0xA5,0x3C, //2055

0x0e,0xA5,0x4f, //2056

0x06,0xB2,0x44, //2057

0x4A,0xB6,0x38, //2058

0x0A,0xAe,0x4C, //2059

0x09,0x2e,0x42, //2060

0x3C,0x97,0x35, //2061

0x0C,0x96,0x49, //2062

0x7d,0x4A,0xBd, //2063

0x0d,0x4A,0x51, //2064

0x0d,0xA5,0x45, //2065

0x55,0xAA,0xBA, //2066

0x05,0x6A,0x4e, //2067

0x0A,0x6d,0x43, //2068

0x45,0x2e,0xB7, //2069

0x05,0x2d,0x4B, //2070

0x8A,0x95,0xBf, //2071

0x0A,0x95,0x53, //2072

0x0B,0x4A,0x47, //2073

0x6B,0x55,0x3B, //2074

0x0A,0xd5,0x4f, //2075

0x05,0x5A,0x45, //2076

0x4A,0x5d,0x38, //2077

0x0A,0x5B,0x4C, //2078

0x05,0x2B,0x42, //2079

0x3A,0x93,0xB6, //2080

0x06,0x93,0x49, //2081

0x77,0x29,0xBd, //2082

0x06,0xAA,0x51, //2083

0x0A,0xd5,0x46, //2084

0x54,0xdA,0xBA, //2085

0x04,0xB6,0x4e, //2086

0x0A,0x57,0x43, //2087

0x45,0x27,0x38, //2088

0x0d,0x26,0x4A, //2089

0x8e,0x93,0x3e, //2090

0x0d,0x52,0x52, //2091

0x0d,0xAA,0x47, //2092

0x66,0xB5,0x3B, //2093

0x05,0x6d,0x4f, //2094

0x04,0xAe,0x45, //2095

0x4A,0x4e,0xB9, //2096

0x0A,0x4d,0x4C, //2097

0x0d,0x15,0x41, //2098

0x2d,0x92,0xB5, //2099

};

///月份数据表

code uchar day_code1[9]={0x0,0x1f,0x3b,0x5a,0x78,0x97,0xb5,0xd4,0xf3};

code uint day_code2[3]={0x111,0x130,0x14e};

/

函数功能:输入BCD阳历数据,输出BCD阴历数据(只允许1901-2099年)

调用函数示例:Conversion(c_sun,year_sun,month_sun,day_sun)

如:计算2004年10月16日Conversion(0,0x4,0x10,0x16);

c_sun,year_sun,month_sun,day_sun均为BCD数据,c_sun为世纪标志位,c_sun=0为21世

纪,c_sun=1为19世纪

调用函数后,原有数据不变,读c_moon,year_moon,month_moon,day_moon得出阴历BCD数据

/

bit c_moon;

data uchar year_moon,month_moon,day_moon,week;

/子函数,用于读取数据表中农历月的大月或小月,如果该月为大返回1,为小返回0/

bit get_moon_day(uchar month_p,uint table_addr)

{

uchar temp;

switch (month_p)

{

case 1:{temp=year_code[table_addr]&0x08;

if (temp==0)return(0);else return(1);}

case 2:{temp=year_code[table_addr]&0x04;

if (temp==0)return(0);else return(1);}

case 3:{temp=year_code[table_addr]&0x02;

if (temp==0)return(0);else return(1);}

case 4:{temp=year_code[table_addr]&0x01;

if (temp==0)return(0);else return(1);}

case 5:{temp=year_code[table_addr+1]&0x80;

if (temp==0) return(0);else return(1);}

case 6:{temp=year_code[table_addr+1]&0x40;

if (temp==0)return(0);else return(1);}

case 7:{temp=year_code[table_addr+1]&0x20;

if (temp==0)return(0);else return(1);}

case 8:{temp=year_code[table_addr+1]&0x10;

if (temp==0)return(0);else return(1);}

case 9:{temp=year_code[table_addr+1]&0x08;

if (temp==0)return(0);else return(1);}

case 10:{temp=year_code[table_addr+1]&0x04;

if (temp==0)return(0);else return(1);}

case 11:{temp=year_code[table_addr+1]&0x02;

if (temp==0)return(0);else return(1);}

case 12:{temp=year_code[table_addr+1]&0x01;

if (temp==0)return(0);else return(1);}

case 13:{temp=year_code[table_addr+2]&0x80;

if (temp==0)return(0);else return(1);}

}

}

/

函数功能:输入BCD阳历数据,输出BCD阴历数据(只允许1901-2099年)

调用函数示例:Conversion(c_sun,year_sun,month_sun,day_sun)

如:计算2004年10月16日Conversion(0,0x4,0x10,0x16);

c_sun,year_sun,month_sun,day_sun均为BCD数据,c_sun为世纪标志位,c_sun=0为21世

纪,c_sun=1为19世纪

调用函数后,原有数据不变,读c_moon,year_moon,month_moon,day_moon得出阴历BCD数据

/

void Conversion(bit c,uchar year,uchar month,uchar day)

{ //c=0 为21世纪,c=1 为19世纪 输入输出数据均为BCD数据

uchar temp1,temp2,temp3,month_p;

uint temp4,table_addr;

bit flag2,flag_y;

temp1=year/16; //BCD->hex 先把数据转换为十六进制

temp2=year%16;

year=temp110+temp2;

temp1=month/16;

temp2=month%16;

month=temp110+temp2;

temp1=day/16;

temp2=day%16;

day=temp110+temp2;

//定位数据表地址

if(c==0)

{

table_addr=(year+0x64-1)0x3;

}

else

{

table_addr=(year-1)0x3;

}

//定位数据表地址完成

//取当年春节所在的公历月份

temp1=year_code[table_addr+2]&0x60;

temp1=_cror_(temp1,5);

//取当年春节所在的公历月份完成

//取当年春节所在的公历日

temp2=year_code[table_addr+2]&0x1f;

//取当年春节所在的公历日完成

// 计算当年春年离当年元旦的天数,春节只会在公历1月或2月

if(temp1==0x1)

{

temp3=temp2-1;

}

else

{

temp3=temp2+0x1f-1;

}

// 计算当年春年离当年元旦的天数完成

//计算公历日离当年元旦的天数,为了减少运算,用了两个表

//day_code1[9],day_code2[3]

//如果公历月在九月或前,天数会少于0xff,用表day_code1[9],

//在九月后,天数大于0xff,用表day_code2[3]

//如输入公历日为8月10日,则公历日离元旦天数为day_code1[8-1]+10-1

//如输入公历日为11月10日,则公历日离元旦天数为day_code2[11-10]+10-1

if (month<10)

{

temp4=day_code1[month-1]+day-1;

}

else

{

temp4=day_code2[month-10]+day-1;

}

if ((month>0x2)&&(year%0x4==0))

{ //如果公历月大于2月并且该年的2月为闰月,天数加1

temp4+=1;

}

//计算公历日离当年元旦的天数完成

//判断公历日在春节前还是春节后

if (temp4>=temp3)

{ //公历日在春节后或就是春节当日使用下面代码进行运算

temp4-=temp3;

month=0x1;

month_p=0x1; //month_p为月份指向,公历日在春节前或就是春节当日month_p指向首月

flag2=get_moon_day(month_p,table_addr);

//检查该农历月为大小还是小月,大月返回1,小月返回0

flag_y=0;

if(flag2==0)temp1=0x1d; //小月29天

else temp1=0x1e; //大小30天

temp2=year_code[table_addr]&0xf0;

temp2=_cror_(temp2,4); //从数据表中取该年的闰月月份,如为0则该年无闰月

while(temp4>=temp1)

{

temp4-=temp1;

month_p+=1;

if(month==temp2)

{

flag_y=~flag_y;

if(flag_y==0)

month+=1;

}

else month+=1;

flag2=get_moon_day(month_p,table_addr);

if(flag2==0)temp1=0x1d;

else temp1=0x1e;

}

day=temp4+1;

}

else

{ //公历日在春节前使用下面代码进行运算

temp3-=temp4;

if (year==0x0)

{

year=0x63;c=1;

}

else year-=1;

table_addr-=0x3;

month=0xc;

temp2=year_code[table_addr]&0xf0;

temp2=_cror_(temp2,4);

if (temp2==0)

month_p=0xc;

else

month_p=0xd; //

/month_p为月份指向,如果当年有闰月,一年有十三个月,月指向13,无闰月指向12/

flag_y=0;

flag2=get_moon_day(month_p,table_addr);

if(flag2==0)temp1=0x1d;

else temp1=0x1e;

while(temp3>temp1)

{

temp3-=temp1;

month_p-=1;

if(flag_y==0)month-=1;

if(month==temp2)flag_y=~flag_y;

flag2=get_moon_day(month_p,table_addr);

if(flag2==0)temp1=0x1d;

else temp1=0x1e;

}

day=temp1-temp3+1;

}

c_moon=c; //HEX->BCD ,运算结束后,把数据转换为BCD数据

temp1=year/10;

temp1=_crol_(temp1,4);

temp2=year%10;

year_moon=temp1|temp2;

temp1=month/10;

temp1=_crol_(temp1,4);

temp2=month%10;

month_moon=temp1|temp2;

temp1=day/10;

temp1=_crol_(temp1,4);

temp2=day%10;

day_moon=temp1|temp2;

}

/函数功能:输入BCD阳历数据,输出BCD星期数据(只允许1901-2099年)

调用函数示例:Conver_week(c_sun,year_sun,month_sun,day_sun)

如:计算2004年10月16日Conversion(0,0x4,0x10,0x16);

c_sun,year_sun,month_sun,day_sun均为BCD数据,c_sun为世纪标志位,c_sun=0为21世

纪,c_sun=1为19世纪

调用函数后,原有数据不变,读week得出阴历BCD数据

/

code uchar table_week[12]={0,3,3,6,1,4,6,2,5,0,3,5}; //月修正数据表

/

算法:日期+年份+所过闰年数+月较正数之和除7 的余数就是星期但如果是在

闰年又不到3 月份上述之和要减一天再除7

星期数为0

/

void Conver_week(bit c,uchar year,uchar month,uchar day)

{//c=0 为21世纪,c=1 为19世纪 输入输出数据均为BCD数据

uchar temp1,temp2;

temp1=year/16; //BCD->hex 先把数据转换为十六进制

temp2=year%16;

year=temp110+temp2;

temp1=month/16;

temp2=month%16;

month=temp110+temp2;

temp1=day/16;

temp2=day%16;

day=temp110+temp2;

if (c==0){year+=0x64;} //如果为21世纪,年份数加100

temp1=year/0x4; //所过闰年数只算1900年之后的

temp2=year+temp1;

temp2=temp2%0x7; //为节省资源,先进行一次取余,避免数大于0xff,避免使用整型数据

temp2=temp2+day+table_week[month-1];

if (year%0x4==0&&month<3)temp2-=1;

week=temp2%0x7;

}

//test

uchar c_sun,year_sun,month_sun,day_sun;

void main()

{

c_sun=1;

year_sun=0x2;

month_sun=0x11;

day_sun=0x3;

Conver_week(c_sun,year_sun,month_sun,day_sun);

Conversion(c_sun,year_sun,month_sun,day_sun);

while(1);

}

500HZ方波周期是2ms,只需定时器1ms,将管脚状态取反一次就其可，若按下按键，改为定时500us即可，程序如下：

#include <reg51h>

sbit key=P1^0;

void main()

{

unsigned int n=1000;

TMOD=0X01;//定时器0工作方式1

TH0=(65536-N)/256;//定时器初值，先是定时1000US

TL0=(65536-N)%256;

ET0=1;//开定时器0中断

EA=1;//开总中断

TR0=1;//启动定时器0

while(1)

{

if(key==0)//判断按键是否按下

{

delay_ms(20);//延时消抖动

if(key==0)n=500;

}

}

}

中断程序如下：

void timer0() interrupt 1

{

TH0=(65536-N)/256;

TL0=(65536-N)%256;

P2^0=~P2^0;//P20输出方波

}

延时子程序略

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