【TI 技术资料分享】+基于Launchpad的爱情万年历

void main (void)

{

CSL_init(); // 初始化单片机

lsd1602_init(); // 初始化LCD1602

ds1302_init(); //初始化DS1302

while(1)

{

_DINT(); //关闭中断

data_pro(); //从DS1302中读取并处理数据

_EINT();

if(month== 0x03 && date== 0x07)//3月7日是我们的纪念日

jww(); //如果是3月7号则显示不同的画面（jww是处理函数）

update_disbuf(); //更新LCD1602显示空间（在2553中开辟）

display(); //控制LCD1602显示时间

if(month== 0x03 && date== 0x07)//3月7日纪念日

__delay_cycles(1000000);

}

}

//设置P0作为输出连接LCD1602的数据端D0-D7，P2.3为SCLK，P2.4为SDA，P2.5为RST(都配置为输出)

//P2.0为rs,P2.1为rw，P2.2为e(都配置为输出)

//P2.67配置为输入,下降沿中断，中断处理函数 void key_pro(),P2。6接key1(控制光标)，P2.7接key2，控制调节（增加）

//grace配置中设置P2.345为输出，MCLK=1MHz，

//本程序将数据用ASCII表示，方便LCD1602显示

//在做DS1302的硬件时应该特别注意：数据线RST。SCLK、SDA一定上拉电阻，晶振添加负载电容，连接线尽量短

//date代表日，day代表星期几

#include <msp430.h>

#include <ti/mcu/msp430/csl/CSL.h>

//定义全局变量年月日时分秒

char year,month,date,hour,minute,second,n;//n代表周几

char love_years; //恋爱纪念年

char day[7][3]={"MON","TUE","WED","THI","FRI","SAT","SUN"};

char i=0; //用来记录key1按下的次数

char dis_buf1[16]; //lcd上排显示缓冲区

char dis_buf2[16]; //lcd下排显示缓冲区

char weiwei1[16]={"weiwei: I love u"};

char weiwei2[16]={"so much! by xuxu"};

char love1[16]={"We've been toget"};

char love2[16]={"her for years"};

//LCD1602控制位

#define rs_0 (P2OUT &= ~BIT0)

#define rs_1 (P2OUT |= BIT0)

#define rw_0 (P2OUT &= ~BIT1)

#define rw_1 (P2OUT |= BIT1)

#define e_0 (P2OUT &= ~BIT2)

#define e_1 (P2OUT |= BIT2)

//DS1302控制位

#define SCLK_0 (P2OUT &= ~BIT3)

#define SCLK_1 (P2OUT |= BIT3)

#define SDA_0 (P2OUT &= ~BIT4)

#define SDA_1 (P2OUT |= BIT4)

#define RST_0 (P2OUT &= ~BIT5)

#define RST_1 (P2OUT |= BIT5)

#define SDA (P2IN &= BIT4)

//宏定义DS1302数据地址

#define write_second 0x80

#define read_second 0x81

#define write_minute 0x82

#define read_minute 0x83

#define write_hour 0x84

#define read_hour 0x85

#define write_date 0x86

#define read_date 0x87

#define write_month 0x88

#define read_month 0x89

#define write_year 0x8c

#define read_year 0x8d

#define write_day 0x8a

#define read_day 0x8b

#define write_protect 0x8e

#define write_power 0x90

//*******************以下为LCD1602的子函数************************//

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

//查询是否忙碌（每次输入指令前都要判断液晶模块是否处于忙的状态）

char busy(void)

{

char busyc;

rs_0;

rw_1;

e_1;

__delay_cycles(1000);

P1DIR = 0x00; //P1口置为输入，读取LCD状态

busyc = P1IN & BIT7; //从P1输入是否忙碌（D7高电平表示忙碌）

P1DIR = 0xff;

e_0;

return busyc;

}

//向LCD1602写字节命令

void write_command(char command)

{

while(busy()); //判断LCD是否忙碌

rs_0;

rw_0;

P1OUT = command;

__delay_cycles(1); //时间间隔MIN=30nS

e_1;

__delay_cycles(1); //MIN=150nS

e_0;

}

//向LCD1602写数据命令

void write_data(char data)

{

while(busy()); //判断LCD是否忙碌

rs_1;

rw_0;

__delay_cycles(1);

e_1;

P1OUT=data;

__delay_cycles(1);

e_0;

}

//LCD1602初始化函数

void lsd1602_init()

{

e_0;

write_command(0x38);

__delay_cycles(15000);

write_command(0x0c);

write_command(0x06);

write_command(0x01);

}

void update_disbuf()

{

dis_buf1[0]='2';

dis_buf1[1]='0';

dis_buf1[2]=year/16 + 0x30;

dis_buf1[3]=year%16 + 0x30;

dis_buf1[4]='-';

dis_buf1[5]=month/16 + 0x30;

dis_buf1[6]=month%16 + 0x30;

dis_buf1[7]='-';

dis_buf1[8]=date/16 + 0x30;

dis_buf1[9]=date%16 + 0x30;

dis_buf1[10]=' ';

dis_buf1[11]=' ';

dis_buf1[12]=' ';

dis_buf1[13]=day[n-1][0];

dis_buf1[14]=day[n-1][1];

dis_buf1[15]=day[n-1][2];

dis_buf2[0]=' ';

dis_buf2[1]='j';

dis_buf2[2]='w';

dis_buf2[3]='w';

dis_buf2[4]='&';

dis_buf2[5]='z';

dis_buf2[6]='x';

dis_buf2[7]=' ';

dis_buf2[8]=hour/16 + 0x30;

dis_buf2[9]=hour%16 + 0x30;

dis_buf2[10]=':';

dis_buf2[11]=minute/16 + 0x30;

dis_buf2[12]=minute%16 + 0x30;

dis_buf2[13]=':';

dis_buf2[14]=second/16 + 0x30;

dis_buf2[15]=second%16 + 0x30;

}

void display()

{

char t;

write_command(0x80);

for (t=0;t<=15;t++)

{write_data(dis_buf1[t]);}

write_command(0xc0);

for (t=0;t<=15;t++)

{write_data(dis_buf2[t]);}

}

//********************以下为DS1302的子函数************************//

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

//向DS1302写一个字节的数据

void ds1302_Wbyte(char dat)

{

char s,temp;

temp = dat;

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

{if(temp & 0x01) //从低位开始传输数据

{SDA_1;}

else

SDA_0;

SCLK_1; //上升沿锁存数据

temp = temp>>1; //数据右移一位为下次输出做准备

SCLK_0; //为下一次做准备

}

}

//从DS1302读取8位数据

char ds1302_Rbyte()

{

char u,temp;

P2DIR &= ~BIT4;

for(u=8; u>0;u--)

{

temp=temp>>1;

temp += (P2IN&BIT4)<<3;

SCLK_1;

SCLK_0;

}

P2DIR |= BIT4;

return(temp);

}

//向DS1302写入地址然后读取数据

char ds1302_Read(char cmd)

{

char dat;

RST_0; //初始化RST为低

SCLK_0; //SLK=0

RST_1; //开始传输数据

ds1302_Wbyte(cmd); //传输命令字，写入要读取的时间、日期地址

dat = ds1302_Rbyte(); //读取八位数据

RST_0; //结束数据传输

SCLK_0; //拉高时钟线

return(dat);

}

//向DS1302写入地址后写入数据

void ds1302_Write(char cmd,char dat)

{

RST_0;

SCLK_0; //在RST的上升沿，SCLK必须为0

RST_1; //开始传输数据

ds1302_Wbyte(cmd); //写入要修改的地址

ds1302_Wbyte(dat); //写入数据

SCLK_1; //拉高时钟线

RST_0; //拉低RST

}

//初始化DS1302的程序

void ds1302_init(void)

{

ds1302_Write(write_protect,0x00);//关闭写保护

ds1302_Write(write_second,0x00); //初始化秒为00，不暂停时钟(BIT7)

ds1302_Write(write_minute,0x59); //初始化分为00

ds1302_Write(write_hour,0x23); //初始化时为23，设置为24小时制(BIT7)

ds1302_Write(write_date,0x01); //初始化日期为01

ds1302_Write(write_month,0x01); //初始化月为01

ds1302_Write(write_year,0x12); //初始化年为(20)12

ds1302_Write(write_day,0x07); //周日

ds1302_Write(write_power,0x0a5); //一个二极管压降，电阻4K

ds1302_Write(write_protect,0x80);//打开写保护

}

//DS1302数据处理函数，此函数将个位、十位分别用char表示，方便用数码管显示

void data_pro(void)

{

ds1302_Write(write_protect,0x00);//关闭写保护

date = ds1302_Read(read_date); //读取日

if(date>0x29 && month==0x02) //如果调时时2月超过29

{ds1302_Write(write_date,0x01);

date = ds1302_Read(read_date);

ds1302_Write(write_month,month + 1);

}

month = ds1302_Read(read_month);//读取月

year = ds1302_Read(read_year); //读取年

hour = ds1302_Read(read_hour); //读取时

hour = hour & 0x3f; //屏蔽掉前两位

minute = ds1302_Read(read_minute);//读取分

second = ds1302_Read(read_second);//读取秒

n = ds1302_Read(read_day);//读取星期

ds1302_Write(write_protect,0x80);//打开写保护

}

//按键中断处理程序(使用grace配置)

void key_pro(void)

{

char j; //用于复制自定义的显示计数（16个）

__delay_cycles(8000); //延时去抖动

if(!(P2IN & BIT6)) //判断是否有按键按下

{

i++;

switch(i)

{

case 1:

write_command(0x83); //显示光标到年

write_command(0x0f);

break;

case 2:

write_command(0x86); //显示光标到月

write_command(0x0f);

break;

case 3:

write_command(0x89); //显示光标到日

write_command(0x0f);

break;

case 4:

write_command(0x8f); //显示光标到周

write_command(0x0f);

break;

case 5:

write_command(0xc9); //显示光标到时

write_command(0x0f);

break;

case 6:

write_command(0xcc); //显示光标到分

write_command(0x0f);

break;

case 7:

write_command(0xcf); //显示光标到秒

write_command(0x0f);

break;

default: break;

}

}

if(i>7)

{

i=0;

write_command(0x0c); //关闭光标显示

}

P2IFG=0; //软件复位标志

while(!(P2IN & BIT6))

{

ds1302_Write(write_protect,0x00);//关闭写保护

while(!(P2IN & BIT7)) //如果按键2被按下

{

switch(i) //根据i的值来确定某变量进行加1

{case 0: //显示自定义的语句

for(j=0;j<16;j++)

{

dis_buf1[j] = weiwei1[j];

dis_buf2[j] = weiwei2[j];

display();

}

break;

case 1: //此事处理全局变量year

year++; //year加1

if(year>0x99) //如果year大于99则置0

year=0;

if((year & 0x0f)>0x09) //如果year低四位大于9（第四位BCD码表示个位），十位加1，个位置0

{year +=0x10;

year &=0xf0;

}

ds1302_Write(write_year,year);//将变化后的year写入DS1302

year = ds1302_Read(read_year);//读出来year显示（使调节year时同步变化，为了人性化）

update_disbuf(); //更新显示字符

while(!(P2IN & BIT7))

display();

break;

case 2: //此时处理全局变量month

month++;

if(month>0x12)

month=1;

if((month & 0x0f)>0x09)

{month +=0x10;

month &=0xf0;

}

ds1302_Write(write_month,month);

month = ds1302_Read(read_month);

update_disbuf(); //更新显示字符

while(!(P2IN & BIT7))

display();

break;

case 3: //此时处理全局变量date

date++;

if( (date>0x29 && month==0x02)

|| (month==0x04 || month==0x06 || month==0x09 || month==0x11)&& date>0x30

|| date>0x31 )

date=0x01;

if((date & 0x0f)>0x09)

{date +=0x10;

date &=0xf0;

}

ds1302_Write(write_date,date);

date = ds1302_Read(read_date);

update_disbuf(); //更新显示字符

while(!(P2IN & BIT7))

display();

break;

case 4: //此时处理全局变量day

n++;

if(n>0x07)

n=1;

ds1302_Write(write_day,n);

n = ds1302_Read(read_day);

update_disbuf(); //更新显示字符

while(!(P2IN & BIT7))

display();

break;

case 5: //此时处理全局变量hour

hour++;

if(hour>0x23)

hour=0;

if((hour & 0x0f)>0x09)

{hour +=0x10;

hour &=0xf0;

}

ds1302_Write(write_hour,hour);

hour = ds1302_Read(read_hour);

update_disbuf(); //更新显示字符

while(!(P2IN & BIT7))

display();

break;

case 6: //此时处理全局变量minute

minute++;

if(minute>0x59)

minute=0;

if((minute & 0x0f)>0x09)

{minute +=0x10;

minute &=0xf0;

}

ds1302_Write(write_minute,minute);

minute = ds1302_Read(read_minute);

update_disbuf(); //更新显示字符

while(!(P2IN & BIT7))

display();

break;

case 7: //此时处理全局变量second

second++;

if(second>0x59)

second=0;

if((second & 0x0f)>0x09)

{second +=0x10;

second &=0xf0;

}

ds1302_Write(write_second,second);

second = ds1302_Read(read_second);

update_disbuf(); //更新显示字符

while(!(P2IN & BIT7))

display();

break;

default: break;

}

}

ds1302_Write(write_protect,0x80);//打开写保护

}

}

//纪念日处理程序

void jww(void)

{char ww_xx;

for(ww_xx=0;ww_xx<16;ww_xx++)

{

dis_buf1[ww_xx] = love1[ww_xx];

dis_buf2[ww_xx] = love2[ww_xx];

}

love_years= year - 0x11; //减去2011年

dis_buf2[8]=love_years/16 + 0x30;

dis_buf2[9]=love_years%16 + 0x30;

display();

_DINT();

__delay_cycles(2000000); //延时显示出来

_EINT();

}

//主函数

void main (void)

{

CSL_init(); // 初始化单片机

lsd1602_init(); // 初始化LCD1602

ds1302_init(); //初始化DS1302

while(1)

{

_DINT();

data_pro(); //读取并处理数据

_EINT();

if(month== 0x03 && date== 0x07)//3月7日纪念日

jww();

update_disbuf(); //更新显示字符

display(); //显示时间

if(month== 0x03 && date== 0x07)//3月7日纪念日

__delay_cycles(1000000);

}

}