Andy0613
476 lines
10 KiB
C
476 lines
10 KiB
C
#include<reg51.h>
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#include<intrins.h>
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#include"lcd.h"
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#include"ds1302.h"
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#include"ds18b20.h"
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/* 端口定义 */
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sbit K1=P3^1; /* 模式/确认键 */
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sbit K2=P3^0; /* 切换/返回键 */
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sbit K3=P3^2; /* 加/开始暂停 */
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sbit K4=P3^3; /* 减/复位清0 */
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/* 全局变量 */
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unsigned char mode = 0; /* 模式: 0=时钟, 2=秒表 */
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unsigned char last_mode = 0xFF; /* 上一模式，用于检测模式切换 */
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int temperature = 0; /* 温度值(10倍) */
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unsigned char temp_cnt = 0; /* 温度采集计数 */
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unsigned char alarm_hour=6, alarm_min=0, alarm_on=0; /* 闹钟参数 */
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/* 秒表变量 */
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unsigned int sw_sec = 0; /* 秒表秒数 */
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unsigned char sw_csec = 0; /* 秒表百分秒 */
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bit sw_running = 0; /* 秒表运行状态 */
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/* 宏定义 */
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#define BCD2DEC(bcd) (((bcd)>>4)*10 + ((bcd)&0x0f))
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#define DEC2BCD(dec) (((dec)/10<<4) | ((dec)%10))
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/* 函数声明 */
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void Delay10ms(void);
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void DelayMs(unsigned int ms);
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void Timer1Init(void);
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void TempPros(void);
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void AlarmJudge(void);
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void AlarmBuzPro(void);
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void SetAlarm(void);
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void SetTime(void);
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void LcdFramework(void);
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void LcdUpdate(void);
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void KeyScan(void);
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/* K1按键检测：去抖 + 确认释放后返回1 */
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bit K1_Pressed(void)
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{
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if(K1) return 0;
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Delay10ms();
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if(K1) return 0;
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while(!K1);
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return 1;
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}
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/* K2按键检测：去抖 + 确认释放后返回1 */
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bit K2_Pressed(void)
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{
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if(K2) return 0;
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Delay10ms();
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if(K2) return 0;
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while(!K2);
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return 1;
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}
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/* K3按键检测：去抖 + 确认释放后返回1 */
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bit K3_Pressed(void)
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{
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if(K3) return 0;
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Delay10ms();
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if(K3) return 0;
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while(!K3);
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return 1;
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}
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/* K4按键检测：去抖 + 确认释放后返回1 */
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bit K4_Pressed(void)
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{
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if(K4) return 0;
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Delay10ms();
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if(K4) return 0;
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while(!K4);
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return 1;
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}
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/* LCD写字符串 */
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void LcdWriteStr(unsigned char code *str)
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{
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while(*str) LcdWriteData(*str++);
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}
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/* LCD定位 + 2位十进制数显示 */
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void LcdShowNumAt(unsigned char addr, unsigned char num)
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{
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LcdWriteCom(addr);
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LcdWriteData('0' + num / 10);
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LcdWriteData('0' + num % 10);
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}
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/* 通用参数调整函数：循环检测K3/K4加减，K1确认退出 */
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void AdjustValue(unsigned char *val, unsigned char maxVal,
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unsigned char dispAddr, unsigned char cursorAddr)
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{
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LcdWriteCom(cursorAddr); LcdWriteCom(0x0f);
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while(1)
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{
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if(K3_Pressed())
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{
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if(*val < maxVal) (*val)++; else *val = 0;
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LcdShowNumAt(dispAddr, *val);
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LcdWriteCom(cursorAddr); LcdWriteCom(0x0f);
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}
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if(K4_Pressed())
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{
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if(*val > 0) (*val)--; else *val = maxVal;
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LcdShowNumAt(dispAddr, *val);
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LcdWriteCom(cursorAddr); LcdWriteCom(0x0f);
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}
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if(K1_Pressed()) { LcdWriteCom(0x0c); return; }
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}
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}
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/* 主函数 */
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void main()
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{
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Timer1Init(); /* 初始化定时器1 */
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LcdInit(); /* 初始化LCD1602 */
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Ds1302Init(); /* 初始化DS1302 */
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DS18B20_SetResolution(0x3F); /* 设置DS18B20分辨率10位 */
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DS18B20_StartConvert(); /* 开始温度转换 */
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/* 从DS1302 RAM读取闹钟参数 */
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alarm_hour = Ds1302Read(0xC1);
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if(alarm_hour > 23) alarm_hour = 6;
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alarm_min = Ds1302Read(0xC3);
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if(alarm_min > 59) alarm_min = 0;
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alarm_on = Ds1302Read(0xC5);
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if(alarm_on > 1) alarm_on = 0;
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/* 主循环 */
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while(1)
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{
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Ds1302ReadTime(); /* 读取DS1302时间 */
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/* 每5次循环采集一次温度 */
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temp_cnt++;
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if(temp_cnt >= 5)
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{
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temp_cnt = 0;
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TempPros();
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}
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/* 模式切换时刷新LCD框架 */
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if(mode != last_mode)
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{
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LcdFramework();
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last_mode = mode;
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}
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AlarmJudge(); /* 闹钟判断 */
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AlarmBuzPro(); /* 闹钟蜂鸣器处理 */
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KeyScan(); /* 按键扫描 */
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LcdUpdate(); /* LCD显示更新 */
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}
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}
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/* LCD写2位十进制数(当前位置) */
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void ShowLcdNum(unsigned char num)
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{
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LcdWriteData('0' + num / 10);
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LcdWriteData('0' + num % 10);
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}
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/* LCD显示星期写入 */
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void ShowLcdWeek(unsigned char week)
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{
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switch(week)
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{
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case 1: LcdWriteData('S'); LcdWriteData('u'); LcdWriteData('n'); break; /* Sunday */
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case 2: LcdWriteData('M'); LcdWriteData('o'); LcdWriteData('n'); break; /* Monday */
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case 3: LcdWriteData('T'); LcdWriteData('u'); LcdWriteData('e'); break; /* Tuesday */
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case 4: LcdWriteData('W'); LcdWriteData('e'); LcdWriteData('d'); break; /* Wednesday */
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case 5: LcdWriteData('T'); LcdWriteData('h'); LcdWriteData('u'); break; /* Thursday */
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case 6: LcdWriteData('F'); LcdWriteData('r'); LcdWriteData('i'); break; /* Friday */
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case 7: LcdWriteData('S'); LcdWriteData('a'); LcdWriteData('t'); break; /* Saturday */
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}
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}
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/* LCD框架：刷新静态结构(按模式) */
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void LcdFramework()
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{
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LcdWriteCom(0x0c); /* 关闭显示光标 */
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if(mode == 0) /* 时钟模式框架 */
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{
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LcdWriteCom(0x80);
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LcdWriteStr("20 - - ");
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LcdWriteCom(0xC0);
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LcdWriteStr(" : : ");
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}
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else if(mode == 2) /* 秒表模式框架 */
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{
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LcdWriteCom(0x80);
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LcdWriteStr(" Stop Watch ");
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LcdWriteCom(0xC0);
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LcdWriteStr(" : : . ");
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}
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}
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/* LCD：刷新动态数据 */
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void LcdUpdate()
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{
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int temp_disp;
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if(mode == 0) /* 时钟模式 */
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{
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LcdShowNumAt(0x82, BCD2DEC(TIME[6])); /* 年 */
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LcdShowNumAt(0x85, BCD2DEC(TIME[4])); /* 月 */
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LcdShowNumAt(0x88, BCD2DEC(TIME[3])); /* 日 */
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LcdWriteCom(0x8C);
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ShowLcdWeek(TIME[5] & 0x07); /* 星期 */
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LcdShowNumAt(0xC0, BCD2DEC(TIME[2])); /* 时 */
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LcdShowNumAt(0xC3, BCD2DEC(TIME[1])); /* 分 */
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LcdShowNumAt(0xC6, BCD2DEC(TIME[0])); /* 秒 */
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/* 显示温度：-12.3C */
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LcdWriteCom(0xC9);
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temp_disp = temperature;
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if(temp_disp < 0) { LcdWriteData('-'); temp_disp = -temp_disp; }
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else { LcdWriteData(' '); }
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LcdWriteData('0' + temp_disp / 100);
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LcdWriteData('0' + (temp_disp / 10) % 10);
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LcdWriteData('.');
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LcdWriteData('0' + temp_disp % 10);
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LcdWriteData('C');
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}
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else if(mode == 2) /* 秒表模式 */
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{
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LcdShowNumAt(0xC0, sw_sec / 3600); /* 时 */
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LcdShowNumAt(0xC3, (sw_sec % 3600) / 60); /* 分 */
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LcdShowNumAt(0xC6, sw_sec % 60); /* 秒 */
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LcdShowNumAt(0xC9, sw_csec); /* 百分秒 */
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}
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}
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/* 按键扫描 */
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void KeyScan()
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{
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if(mode == 0) /* 时钟模式按键 */
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{
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if(K1_Pressed())
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{
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SetTime();
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last_mode = 0xFF; /* 强制刷新显示 */
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}
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if(K2_Pressed())
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{
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mode = 2;
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sw_running = 0;
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sw_sec = 0;
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sw_csec = 0;
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LcdFramework();
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last_mode = mode;
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LcdUpdate();
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}
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}
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else if(mode == 2) /* 秒表模式按键 */
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{
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if(K3_Pressed())
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{
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sw_running = !sw_running; /* 切换运行状态 */
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TR1 = sw_running; /* 控制定时器启停 */
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}
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if(K4_Pressed())
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{
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if(!sw_running) { sw_sec = 0; sw_csec = 0; } /* 停止时清零 */
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}
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if(K2_Pressed())
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{
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mode = 0;
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TR1 = 0;
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sw_running = 0;
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sw_sec = 0;
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sw_csec = 0;
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LcdFramework();
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last_mode = mode;
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LcdUpdate();
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}
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}
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}
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/* 时间设置：K1切换字段，K3/K4加/减，最后一个字段后自动写入DS1302 */
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void SetTime()
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{
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unsigned char y,mo,d,w,h,mi,s;
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/* BCD转十进制 */
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y = BCD2DEC(TIME[6]);
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mo = BCD2DEC(TIME[4]);
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d = BCD2DEC(TIME[3]);
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w = TIME[5] & 0x07;
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h = BCD2DEC(TIME[2]);
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mi = BCD2DEC(TIME[1]);
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s = BCD2DEC(TIME[0]);
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/* 清除显示 */
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LcdWriteCom(0x80);
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LcdWriteStr("20 - - ");
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LcdWriteCom(0xC0);
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LcdWriteStr(" : : ");
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/* 显示当前时间 */
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LcdShowNumAt(0x82, y);
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LcdShowNumAt(0x85, mo);
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LcdShowNumAt(0x88, d);
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LcdWriteCom(0x8C); ShowLcdWeek(w);
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LcdShowNumAt(0xC0, h);
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LcdShowNumAt(0xC3, mi);
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LcdShowNumAt(0xC6, s);
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/* 日期调节 */
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AdjustValue(&y, 99, 0x82, 0x82);
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AdjustValue(&mo, 12, 0x85, 0x85);
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AdjustValue(&d, 31, 0x88, 0x88);
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AdjustValue(&h, 23, 0xC0, 0xC0);
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AdjustValue(&mi, 59, 0xC3, 0xC3);
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AdjustValue(&s, 59, 0xC6, 0xC6);
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/* 星期调节(手动) */
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LcdWriteCom(0x8C); LcdWriteCom(0x0f);
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while(1)
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{
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if(K3_Pressed()) { if(w<7) w++; else w=1; LcdWriteCom(0x8C); ShowLcdWeek(w); LcdWriteCom(0x8C); LcdWriteCom(0x0f); }
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if(K4_Pressed()) { if(w>1) w--; else w=7; LcdWriteCom(0x8C); ShowLcdWeek(w); LcdWriteCom(0x8C); LcdWriteCom(0x0f); }
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if(K1_Pressed()) { break; }
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}
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/* 转换为BCD存入TIME数组 */
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TIME[6] = DEC2BCD(y);
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TIME[4] = DEC2BCD(mo);
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TIME[3] = DEC2BCD(d);
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TIME[5] = w;
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TIME[2] = DEC2BCD(h);
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TIME[1] = DEC2BCD(mi);
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TIME[0] = DEC2BCD(s);
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/* 写入DS1302 */
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Ds1302Write(0x8E, 0x00);
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Ds1302Write(0x80, TIME[0]);
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Ds1302Write(0x82, TIME[1]);
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Ds1302Write(0x84, TIME[2]);
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Ds1302Write(0x86, TIME[3]);
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Ds1302Write(0x88, TIME[4]);
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Ds1302Write(0x8a, TIME[5]);
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Ds1302Write(0x8c, TIME[6]);
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Ds1302Write(0x8E, 0x80);
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/* 恢复显示 */
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LcdWriteCom(0x0c);
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last_mode = 0xFF;
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}
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/* 闹钟设置：使用AdjustValue重复利用代码 */
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void SetAlarm()
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{
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LcdWriteCom(0x80);
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LcdWriteStr("Alarm Clock Set ");
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LcdWriteCom(0xC0);
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LcdWriteStr(" : ");
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LcdShowNumAt(0xC3, alarm_hour);
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LcdShowNumAt(0xC6, alarm_min);
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LcdWriteCom(0xCA);
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LcdWriteStr(alarm_on ? " ON" : "OFF");
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AdjustValue(&alarm_hour, 23, 0xC3, 0xC4); /* 调整小时 */
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AdjustValue(&alarm_min, 59, 0xC6, 0xC7); /* 调整分钟 */
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LcdWriteCom(0xCC); LcdWriteCom(0x0f);
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while(1) /* 闹钟开关 */
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{
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if(K3_Pressed()) { alarm_on = 1; LcdWriteCom(0xCA); LcdWriteStr(" ON"); LcdWriteCom(0xCC); LcdWriteCom(0x0f); }
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if(K4_Pressed()) { alarm_on = 0; LcdWriteCom(0xCA); LcdWriteStr("OFF"); LcdWriteCom(0xCC); LcdWriteCom(0x0f); }
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if(K1_Pressed()) { break; }
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}
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/* 保存闹钟参数到DS1302 RAM */
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LcdWriteCom(0x0c); /* 关闭光标 */
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Ds1302Write(0x8E, 0x00); /* 允许写DS1302 */
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Ds1302Write(0xC0, alarm_hour); /* 存小时到RAM */
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Ds1302Write(0xC2, alarm_min); /* 存分钟到RAM */
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Ds1302Write(0xC4, alarm_on); /* 存开关状态到RAM */
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Ds1302Write(0x8E, 0x80); /* 禁止写DS1302 */
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}
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/* 定时器1初始化(供秒表计时) */
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void Timer1Init()
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{
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TMOD &= 0x0F; /* 清T1位 */
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TMOD |= 0x10; /* 设置T1为模式1(16位定时器) */
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ET1 = 1; /* 使能T1中断 */
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EA = 1; /* 总中断使能 */
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}
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/* 定时器1中断服务(约10ms中断一次) */
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void Timer1() interrupt 3
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{
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TH1 = 0xD8; /* 装载初值 */
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TL1 = 0xF0;
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if(sw_running) /* 秒表运行时 */
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{
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sw_csec++;
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if(sw_csec >= 100) /* 百分秒满100进1秒 */
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{
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sw_csec = 0;
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sw_sec++;
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}
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}
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}
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/* 温度处理：读取DS18B20并转换为10倍温度值 */
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void TempPros()
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{
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int raw;
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unsigned char sign = 0;
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if(!DS18B20_GetTemp(&raw)) /* 获取原始温度 */
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return;
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if(raw & 0x8000) /* 负温度处理 */
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{
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raw = ~raw + 1;
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sign = 1;
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}
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temperature = raw * 10 / 16; /* 转换为10倍温度值 */
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if(sign)
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temperature = -temperature;
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DS18B20_StartConvert(); /* 启动下一次温度转换 */
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}
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/* 闹钟判断(空函数) */
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void AlarmJudge(void)
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{
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}
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/* 闹钟蜂鸣器处理(蜂鸣器已坏) */
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void AlarmBuzPro(void)
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{
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}
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/* 毫秒延时 @12MHz */
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void DelayMs(unsigned int ms)
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{
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unsigned int i, j;
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for(i=0; i<ms; i++)
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for(j=0; j<112; j++);
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}
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/* 10ms延时 @12MHz */
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void Delay10ms(void)
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{
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unsigned char a,b,c;
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for(c=1;c>0;c--)
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for(b=38;b>0;b--)
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for(a=130;a>0;a--);
|
|
} |