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#define _MAIN_C
#include "config.h"
#include "Lcd1602.h"
#include "keyboard.h"
#include "DS1302.h"
#include "DS18B20.h"
#include "Time.h"
#include "main.h"
bit flag2s = 0; //2s定時標志位
bit flag200ms = 0; //200ms定時標志
uint8 T0RH = 0; //T0重載值的高字節
uint8 T0RL = 0; //T0重載值的低字節
enum eStaSystem staSystem = E_NORMAL; //系統運行狀態
uint8 code table[]={0x00,0x00,0x00,0x1F,0x00,0x00,0x00,0x00,
0x00,0x00,0x0E,0x00,0x00,0x1F,0x00,0x00,
0x00,0x00,0x0E,0x00,0x0E,0x00,0x1F,0x00,
0x00,0x1F,0x15,0x15,0x1B,0x11,0x1F,0x00,
0x00,0x1E,0x08,0x1E,0x0A,0x0A,0x0A,0x1F,
0x00,0x04,0x00,0x1F,0x0A,0x11,0x11,0x00,
0x00,0x1F,0x11,0x11,0x1F,0x11,0x11,0x1F,
0x00,0x04,0x0E,0x0E,0x0E,0x1F,0x00,0x0E };
void main()
{
uint8 ledsj=0;
EA = 1; //開總中斷
ConfigTimer0(1); //配置T0定時1ms
InitDS1302(); //初始化實時時鐘模塊
InitLcd1602(); //初始化液晶模塊
LED=0;
WriteROM();
Start18B20(); //啟動首次溫度轉換
LcdShowStr(2, 0,"Zhao Wen jie");
LcdShowStr(0, 1,"Qichuangnaozhong");
while (!flag2s); //上電后延時2秒
flag2s = 0;
LcdClearScreen(); //液晶清屏
RefreshDate(1); //立即刷新日期顯示
RefreshTemp(1); //立即刷新溫度顯示
RefreshTime(); //刷新當前時間
while (1) //進入主循環
{
KeyDriver(); //執行按鍵驅動
if (flag200ms) //每隔200ms執行以下分支
{
flag200ms = 0;
if (staSystem == E_NORMAL) //正常運行時刷新日期顯示
{
AlarmMonitor(); //監控鬧鐘
if(key==0)
{
if(bakekey==0)
{
LcdClearScreen(); //液晶清
RefreshDate(1); //立即刷新日期顯示
RefreshTemp(1); //立即刷新溫度顯示
bakekey=1;
}
if(bakekey==1)
{
RefreshTime(); //刷新當前時間
RefreshDate(0); //立即刷新日期
}
else
{
;;
}
}
else
{
LcdClearScreen(); //液晶清屏
RefreshAlarm();
}
}
}
if (flag2s) //每隔2s執行以下分支
{
flag2s = 0;
if (staSystem == E_NORMAL) //正常運行時刷新日期顯示
{
ledsj++;
if(ledsj>=30)
{
ledsj=0;
LED=1;
}
RefreshTemp(0);
}
}
}
}
/* 溫度刷新函數，讀取當前溫度并根據需要刷新液晶顯示，
** ops-刷新選項：為0時只當溫度變化才刷新，非0則立即刷新 */
void RefreshTemp(uint8 ops)
{
int16 temp;
uint8 pdata str[8];
static int16 backup = 0;
Get18B20Temp(&temp); //獲取當前溫度值16bit
Start18B20(); //啟動下一次轉換
temp >>= 4; //舍棄4bit小數位
if ((backup!=temp) || (ops!=0)) //按需要刷新液晶顯示
{
if((temp>>7)&0x1f)
{
LcdShowChar(12, 1, '-');
temp=(uint8)temp<<5;
temp=~(temp)+1;
}
str[0] = (temp/10) + '0'; //十位轉為ASCII碼
str[1] = (temp%10) + '0'; //個位轉為ASCII碼
str[2] = 'C';
str[3] = '\0'; //字符串結束符
LcdShowStr(13, 1, str); //顯示到液晶上
backup = temp; //刷新上次溫度值
}
}
/* 配置并啟動T0，ms-T0定時時間 */
void ConfigTimer0(uint16 ms)
{
uint32 tmp;
tmp = (SYS_MCLK*ms)/1000; //計算所需的計數值
tmp = 65536 - tmp; //計算定時器重載值
tmp = tmp + 33; //補償中斷響應延時造成的誤差
T0RH = (uint8)(tmp>>8); //定時器重載值拆分為高低字節
T0RL = (uint8)tmp;
TMOD &= 0xF0; //清零T0的控制位
TMOD |= 0x01; //配置T0為模式1
TH0 = T0RH; //加載T0重載值
TL0 = T0RL;
ET0 = 1; //使能T0中斷
TR0 = 1; //啟動T0
}
/* T0中斷服務函數，實現系統定時和按鍵掃描 */
void InterruptTimer0() interrupt 1
{
static uint8 tmr2s = 0;
static uint8 tmr200ms = 0;
TH0 = T0RH; //重新加載重載值
TL0 = T0RL;
tmr200ms++; //定時200ms
if (tmr200ms >= 200)
{
tmr200ms = 0;
flag200ms = 1;
tmr2s++; //定時2s
if (tmr2s >= 10)
{
tmr2s = 0;
flag2s = 1;
}
}
KeyScan(); //執行按鍵掃描
}
void WriteROM()
{
uint8 i=0;
LcdWriteCmd(0x40);
for(i=0;i<64;i++)
{
LcdWriteDat(table[i]);
}
}
其他子程序在附件中。

復制代碼

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