1.数据类型（u8、u16、u32）

在编写程序时，尤其要注意温度数值与255的关系，设置的边界值能不能有效地超过255！

2.EEPROM存储16位、32位数据方法

假设一个16位的数据需要存储——360

最佳方法，将360/100、360/10%10、360%10分别存入0x01、0x02、0x03地址内。

切记，不可右移八位操作，不知道为啥，这样很容易出问题。

当然，在存储前后关开总线是基本操作。

注意，小要点：

在开机上电读取时，你需要的读出的数值，你要好好想想你读出的值与数码管显示值的关系，比如我一开始脑瘫，读出了jiange_xianshi_ctrl的值，却没有想到数码管显示的是jiange_xianshi的值。。。

3.EEPROM_Write（）的延时

10ms!

记忆口诀修改：从一五一十到一十一鸟

其他暂无。。。。。王者荣耀，黄忠，人性游戏，不要相信队友，猥琐发育才是真，才舒服

#include "system.h"
#include <STC15F2K60S2.H>
u8 disp_state = 1;//1-2-3
u16 jiange_xianshi = 1;//1s-5s-30s-60s
u16 jiange_xianshi_ctrl=1;
bit wendu_OFF_ON = 0;
u8 store_index;
u16 count_2000ms;
bit count_2000ms_OFF_ON;//LED
bit LED1_flag = 0;
u8 count_200ms;
u8 led_state = 0xff;
void Led_Process()
{if((LED1_flag == 1)&&(disp_state == 3)){count_200ms = count_200ms%200 + 1;if(count_200ms<100) led_state &= ~0x01;else if(count_200ms<200) led_state |= 0x01;else if(count_200ms>=200) count_200ms = 0;}else{count_200ms = 0;led_state |= 0x01;}Device_Ctrl(0x80,led_state);
}
//时间
bit start_OFF_ON = 0;
u8 hour_xianshi;
u8 minute_xianshi;
u8 second_xianshi;
u8 hour_xianshi_ctrl;
u8 minute_xianshi_ctrl;
u8 second_xianshi_ctrl;
u8 count_time;
void RTC_Pro()
{hour_xianshi = BCDToDec(Read_Ds1302_Byte(0x85));minute_xianshi = BCDToDec(Read_Ds1302_Byte(0x83));second_xianshi = BCDToDec(Read_Ds1302_Byte(0x81));}//温度
u32 count_wendu;
xdata u16 wendu_value;
u8 wendu_xianshi;
u8 wendu_store[10];
void Wendu_Pro()
{if((wendu_OFF_ON == 1)&&(disp_state == 2)){static u8 j = 0;if(count_wendu >= (u32)(jiange_xianshi_ctrl*1000)){count_wendu = 0;wendu_value = (u16)(Read_Wendu()*10);wendu_xianshi = (u8)(wendu_value/10);wendu_store[j] = wendu_xianshi;j++;if(j == 10){j = 0;LED1_flag = 1;disp_state = 3;}else{disp_state = 2;LED1_flag = 0;}}}else{
//        disp_state = 2;}
}void System_Init()
{Device_Ctrl(0x00,0x00);Device_Ctrl(0xa0,0x00);Device_Ctrl(0x80,0xff);Device_Ctrl(0xc0,0x00);Device_Ctrl(0xe0,0xff);Device_Ctrl(0xc0,0xff);
}
//LEDu8 count_led;
bit test = 0;
void Led_Pro()
{if(test == 1)led_state &= ~0x01;elseled_state |= 0x01;
}
//KEY
u8 count_key;
u8 Key_Value,Key_Down,Key_Old;
void Key_Pro()
{if(count_key>=10){count_key = 0;Key_Value = Key_Read();Key_Down = Key_Value&(Key_Old ^ Key_Value);Key_Old = Key_Value;switch(Key_Down){case 4:{if(disp_state ==1){if(jiange_xianshi == 1) jiange_xianshi = 5;else if(jiange_xianshi == 5) jiange_xianshi = 30;else if(jiange_xianshi == 30) jiange_xianshi = 360;else if(jiange_xianshi == 360) jiange_xianshi = 1;}}break;case 5:if(disp_state == 1){disp_state = 2;if(start_OFF_ON == 0){Set_Clock(23,59,50);start_OFF_ON = 1;}else{
//                        start_OFF_ON = 1;hour_xianshi_ctrl = hour_xianshi;minute_xianshi_ctrl = minute_xianshi;second_xianshi_ctrl = second_xianshi;Set_Clock(hour_xianshi_ctrl,minute_xianshi_ctrl,second_xianshi_ctrl);}jiange_xianshi_ctrl = jiange_xianshi;EA = 0;Write_EEPROM(0x01,(u8)(jiange_xianshi_ctrl/100));EA = 1;EA = 0;Write_EEPROM(0x02,(u8)(jiange_xianshi_ctrl/10%10));EA = 1;EA = 0;Write_EEPROM(0x03,(u8)(jiange_xianshi_ctrl%10));EA = 1;EA = 0;Write_EEPROM(0x04,(u8)(jiange_xianshi_ctrl));EA = 1;EA = 0;Write_EEPROM(0x05,99);EA = 1;wendu_OFF_ON = 1;}else{wendu_OFF_ON = 0;}break;case 6:if(disp_state == 3){LED1_flag = 0;store_index++;if(store_index == 10) {store_index = 0;                        }}break;case 7:if(disp_state == 3){disp_state = 1;}break;}}
}
//SMG
u8 code smg_code[10] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};
xdata u16 count_smg = 0;
void SMG_Pro()
{if(disp_state == 1){count_2000ms_OFF_ON = 0;wendu_OFF_ON = 0;smg_buf[0] = 0xff;smg_buf[1] = 0xff;smg_buf[2] = 0xff;smg_buf[3] = 0xff;smg_buf[4] = 0xbf;smg_buf[5] = ((jiange_xianshi>=100)?(smg_code[jiange_xianshi/100]):(0xff));smg_buf[6] = ((jiange_xianshi>=100)?(smg_code[jiange_xianshi/10%10]):((jiange_xianshi>=10)?(smg_code[jiange_xianshi/10]):(0xff)));smg_buf[7] = (jiange_xianshi>=100)?(smg_code[jiange_xianshi%10]):smg_code[jiange_xianshi%10];}else if(disp_state == 2){count_2000ms_OFF_ON = 1;wendu_OFF_ON = 1;smg_buf[0] = smg_code[hour_xianshi/10];smg_buf[1] = smg_code[hour_xianshi%10];smg_buf[2] = ((count_2000ms<1000)?(0xbf):(0xff));smg_buf[3] = smg_code[minute_xianshi/10];smg_buf[4] = smg_code[minute_xianshi%10];smg_buf[5] = ((count_2000ms<1000)?(0xbf):(0xff));smg_buf[6] = smg_code[second_xianshi/10];smg_buf[7] = smg_code[second_xianshi%10];}else if(disp_state == 3){count_2000ms_OFF_ON = 0;wendu_OFF_ON = 0;smg_buf[0] = 0xbf;smg_buf[1] = smg_code[store_index/10];smg_buf[2] = smg_code[store_index%10];smg_buf[3] = 0xff;smg_buf[4] = 0xff;smg_buf[5] = 0xbf;smg_buf[6] = smg_code[wendu_store[store_index]/10];smg_buf[7] = smg_code[wendu_store[store_index]%10];}}
void tm2_isr() interrupt 12
{count_key++;count_led++;if(wendu_OFF_ON == 1){count_wendu++;}else{count_wendu = 0;    }count_smg++;count_time++;if(count_2000ms_OFF_ON == 1){count_2000ms++;if(count_2000ms >= 2000){count_2000ms = 0;}}else{count_2000ms_OFF_ON = 0;}SMG_Disp();Led_Process();//Device_Ctrl(0x80,led_state);
}
u8 ceshi;
void main()
{doRead_Wendu();while(Read_Wendu() == 85);System_Init();
//    Set_Clock(23,59,50);ceshi = Read_EEPROM(0x05);if(ceshi == 99){jiange_xianshi = (Read_EEPROM(0x01)*100)+(Read_EEPROM(0x02)*10)+(Read_EEPROM(0x03));}else{jiange_xianshi = jiange_xianshi_ctrl;}Timer2Init();while(1){Key_Pro();Wendu_Pro();SMG_Pro();RTC_Pro();}
}