基于MSP430的多功能数字时钟C程序设计.doc

硬件连接图源程序如下：/主程序/*功能:1、KEY1循环选择设置时间模式和设置闹钟模式。 选择设置时间模式时P2.3口灯亮，选择设置闹 钟模式时P2.7口的灯亮。KEY2按下退出模式选 择，同时进入时间/闹钟设置，按KEY1小时位加 ，按KEY2分钟位加。 2、KEY3按下退出时间/闹钟设置，同时显示温度， 循环按KEY3可切换温度与时间的显示。 3、未进入设置模式状态时，KEY2可循环选择闹钟 的开启和关闭。注：在闹钟设置状态下，时钟并没有停止，是不停的走动的。且在时间走动显示过程中，小时和分钟之间的分隔符号每秒闪烁次。小时进制。*/#includemsp430x14x.h#includelcd1602.h/=DS18B20端口=#define OUT_DS18B20_0 P6OUT &=BIT7 /输出#define OUT_DS18B20_1 P6OUT |= BIT7 /输出#define DS18B20_IN P6DIR &=BIT7 /方向设置为输入#define DS18B20_OUT P6DIR |= BIT7 /方向设置为输出/=DS18B20寄存器指令=#define DS18B20_READ_ROM 0x33#define DS18B20_MATCH_ROM 0X55#define DS18B20_SKIP_ROM 0XCC#define DS18B20_SEARCH_ROM 0XF0#define DS18B20_ALARM_SEARCH_ROM 0XEC#define DS18B20_WRITE_RAM 0X40#define DS18B20_READ_RAM 0XBE#define DS18B20_COPY_RAM 0X48 #define DS18B20_CONVERT_TEM 0X44#define DS18B20_EECALL_EEPROM 0XB8#define DS18B20_READ_POWER_SUPPLY 0XB4/=DS18B20相关变量=char temp_data2=0x00,0x00;char dispaly32;/char p_key1=255;char n_key1=255;char p_key2=255;char n_key2=255;char p_key3=255;char n_key3=255;char count1=0;char count2=0;char mode=0;#define push_key1 1#define push_key2 2#define push_key3 3#define key1_in (P1IN&BIT0)#define key2_in (P1IN&BIT1)#define key3_in (P5IN&BIT0)#define key_buffsize 8char key_buffkey_buffsize;char key_indexW=0;char key_indexR=0;char key_count=0;void key_inbuff(char key);char getkey();void scan_io();void delay_ms(unsigned dly) int i,j; for(i=0;idly;i+) for(j=0;j1000;j+);/初始化#define led1_1 P2OUT |=BIT3;#define led1_0 P2OUT &=BIT3;#define led2_1 P2OUT |=BIT7;#define led2_0 P2OUT &=BIT7;#define led3_1 P6OUT |=BIT1;#define led3_0 P6OUT &=BIT1;#define led4_1 P6OUT |=BIT2;#define led4_0 P6OUT &=BIT2;#define Beep_0 P6OUT &=BIT3;#define Beep_1 P6OUT |=BIT3;char hour=0;char min=0;char sec=0;char CLKhour=0;char CLKmin=0;char clkmode=0;char dispmode=0;unsigned int time=0;void init_sysclk() unsigned char i; BCSCTL1 &=XT2OFF; do IFG1 &=OFIFG; for(i=0;i0xee;i+); while(IFG1&OFIFG); BCSCTL2 |=SELM_2;/MCLK 8M DS18B20的转换需要该时钟频率 BCSCTL2 |=SELS;/SMCLK 8Mvoid init_TB() TBCTL=TBCLR; TBCTL |=TBSSEL_2+MC_1+ID_3;/1M TBCCTL0=CCIE; TBCCR0=1000; /1 ms intvoid io_set() P6DIR |=BIT1+BIT2+BIT3; P2DIR |=BIT3+BIT7; P1DIR &=(BIT0+BIT1); P5DIR &=BIT0;void display() P4OUT=0X80; order(); if(hour=12) write_char(p); write_char(m); write_char( ); lcd1602_disp_byte(hour); if(count2=0) write_char(:); if(count2=1) write_char( ); lcd1602_disp_byte(min); lcd1602_disp_space();void displayCLK() P4OUT=0X80; order(); if(CLKhour=12) write_char(p); write_char(m); write_char( ); lcd1602_disp_byte(CLKhour); write_char(:); lcd1602_disp_byte(CLKmin); lcd1602_disp_space();/void key_inbuff(char key) /键盘部分程序 if(key_count=key_buffsize)return; _DINT(); key_count+; key_buffkey_indexW=key; if(+key_indexW=key_buffsize)key_indexW=0; _EINT();char getkey() char key; if(key_count=0)return(0); _DINT(); key_count-; key=key_buffkey_indexR; if(+key_indexR=key_buffsize)key_indexR=0; _EINT(); return(key);void scan_io() p_key1=n_key1; n_key1=key1_in; p_key2=n_key2; n_key2=key2_in; p_key3=n_key3; n_key3=key3_in; if(p_key1=0)&(n_key1!=0)key_inbuff(push_key1); if(p_key2=0)&(n_key2!=0)key_inbuff(push_key2); if(p_key3=0)&(n_key3!=0)key_inbuff(push_key3);#pragma vector=WDT_VECTOR_interrupt void WDT_ISR(void) scan_io();/=void DS18B20_IO_set(void) P6SEL&=0x7f; /=DS18B20延时= void DS1820_delay(int i)while(i-);/=长延时=void Delay(int s)unsigned int i,j;for(i=0; is; i+);for(j=0; js; j+);/=DS18B20复位=void ds18b20_reset(void) DS18B20_OUT; / OUT_DS18B20_1; OUT_DS18B20_0; DS1820_delay(3000); /500us OUT_DS18B20_1; DS18B20_IN; /设置为输入 DS1820_delay(40); while(P6IN&BIT7); DS18B20_OUT; OUT_DS18B20_1; DS1820_delay(300); /=DS18B20读操作函数=char ds18b20_read(void) char i; char temp=0; for(i=0;i=1; OUT_DS18B20_1; DS18B20_IN; if(P6IN&BIT7) temp|=0x80; DS1820_delay(4); DS18B20_OUT; DS1820_delay(50); return (temp);/=DS18B20写操作函数=void ds18b20_write(char Date) char i; DS18B20_OUT; for(i=0;i=1; DS1820_delay(8); /=DS18B20温度转换函数=void Ds18b20Convert(void) ds18b20_reset(); ds18b20_write(0xCC);/DS18B20_SKIP_ROM ds18b20_write(0x44);/DS18B20_CONVERT_TEM Delay(200); ds18b20_reset(); ds18b20_write(0xCC); /DS18B20_SKIP_ROM ds18b20_write(0xBE); /DS18B20_READ_RAM temp_data0=ds18b20_read();/先读转换结果的低八位 temp_data1=ds18b20_read();/读转换结果的高八位/=温度换算处理=void work_temp()char n=0; if(temp_data1127)temp_data1=(256-temp_data1);/负值temp_data0=(256-temp_data0);n=1;dispaly6=(temp_data0&0xf0)4)|(temp_data1&0x0f) 0; iq0-);/ 延时，等待XT2起振 while (IFG1 & OFIFG) != 0);/ 判断XT2是否起振 BCSCTL2 =SELM1+SELS; / MCLK,SMCLK时钟为XT2*/=void DS18B20_IO_set(void) P6SEL&=0x7f; /=DS18B20延时= void DS1820_delay(int i)while(i-);/=长延时=void Delay(int s)unsigned int i,j;for(i=0; is; i+);for(j=0; js; j+);/=DS18B20复位=void ds18b20_reset(void) DS18B20_OUT; / OUT_DS18B20_1; OUT_DS18B20_0; DS1820_delay(3000); /500us OUT_DS18B20_1; DS18B20_IN; /设置为输入 DS1820_delay(40); while(P6IN&BIT7); DS18B20_OUT; OUT_DS18B20_1; DS1820_delay(300); /=DS18B20读操作函数=char ds18b20_read(void) char i; char temp=0; for(i=0;i=1; OUT_DS18B20_1; DS18B20_IN; if(P6IN&BIT7) temp|=0x80; DS1820_delay(4); DS18B20_OUT; DS1820_delay(50); return (temp);/=DS18B20写操作函数=void ds18b20_write(char Date) char i; DS18B20_OUT; for(i=0;i=1; DS1820_delay(8); /=DS18B20温度转换函数=void Ds18b20Convert(void) ds18b20_reset(); ds18b20_write(0xCC);/DS18B20_SKIP_ROM ds18b20_write(0x44);/DS18B20_CONVERT_TEM Delay(200); ds18b20_reset(); ds18b20_write(0xCC); /DS18B20_SKIP_ROM ds18b20_write(0xBE); /DS18B20_READ_RAM temp_data0=ds18b20_read();/先读转换结果的低八位 temp_data1=ds18b20_read();/读转换结果的高八位/=温度换算处理=void work_temp()char n=0; if(temp_data1127)temp_data1=(256-temp_data1);/负值temp_data0=(256-temp_data0);n=1;dispaly6=(temp_data0&0xf0)4)|(temp_data1&0x0f)4);dispaly5=dispaly6/100;/百位dispaly4=dispaly6%100;/dispaly2=dispaly4/10;/十位dispaly1=dispaly4%10;/个位switch(temp_data0&0x0f)/小数位case 0x0f:dispaly0=9;break;case 0x0e:dispaly0=9;break;case 0x0d:dispaly0=8;break;case 0x0c:dispaly0=8;break;case 0x0b:dispaly0=7;break;case 0x0a:dispaly0=6;break;case 0x09:dispaly0=6;break;case 0x08:dispaly0=5;break;case 0x07:dispaly0=4;break;case 0x06:dispaly0=4;break;case 0x05:dispaly0=3;break;case 0x04:dispaly0=3;break;case 0x03:dispaly0=2;break;case 0x02:dispaly0=1;break;case 0x01:dispaly0=1;break;case 0x00:dispaly0=1;break;default:break; if(n)/负值时显示aa,正直显示dddispaly3=11;/ else dispaly3=10;/lcd1602.c#includemsp430x14x.h#define set(x) P6OUT |=x#define clr(x) P6OUT &=x#define rs BIT6#define rw BIT5#define e BIT4const char lcd_tab=0,1,2,3,4,5,6,7,8,9;void init_lcd1602();void lcd1602_disp_byte(unsigned char num);/可以显示void lcd1602_disp_space();void write_char(char ch);void order();void data();void delay();void init_lcd1602() P6DIR |=BIT4+BIT5+BIT6; P4DIR=0XFF; P4OUT=0X01; order(); P4OUT=0X38; order(); P4OUT=0X0C; order(); P4OUT=0X06; order(); /P4OUT=0X80; /order();void lcd1602_dispnum(char *ptr) char disp_buff4; char i,ch; for(i=0;i4;i+) disp_buffi=*ptr; ptr+; P4OUT=0X80; order(); ch=disp_buff3; if(ch=11)write_char(lcd_tabch); ch=disp_buff2; wr