shizhong.rar_lcd 显示倒计时_lcd倒计时

/***************************************************************************** * led_main.c * * LED DEMO Main Entry * * SST89E58/SST89E516 Experimental BOARD * * Copyright(C) 2007, Finley ZHU, HUST * All rights reserved. * * History * 2007.11.18 ver 1.00 * *****************************************************************************/ #include "../pub/board.h" #include "../pub/led.h" #include "../pub/timer.h" #include "../pub/lcd.h" #include "../pub/key.h" #include "../pub/IAP.h" //IAP模块,保存温度值 extern char Timer_interr_flag ; char flag_ms = 1; //进位标志位 char flag_s = 1; char flag_m = 1; char flag_display = 1; //分段显示标识符 char flag_start = 0; //启动和设定标识符 char flag_set = 0; char flag_mo = 0; // 移动一次标志符 char flag_rst = 0; // 记录数据标志 char movex = 0; char time[16] = "00:00:000 Tiljc "; unsigned char timeold[16] = "0000000000000000"; unsigned char ledi_m=0; // 计数十进制表示 unsigned char ledi_s=0; unsigned char ledi_ms=0; /************************ 显存更新 ***********************/ void display_number() { time[0] = timeold[0]+48; //需要显示的显存单元 time[1] = timeold[1]+48; time[3] = timeold[3]+48; time[4] = timeold[4]+48; time[6] = timeold[6]+48; time[7] = timeold[7]+48; time[8] = timeold[8]+48; } /******************** 显示函数库 *********************/ void diaplay() { display_number(); if(flag_m == 0) { ledi_s=0; } if((flag_set == 0)&&(flag_start == 0)) { LCD_PutStr(0,0,time); LED_Digit(ledi_s); } if(flag_set == 1) { LCD_CurPos(movex,0); } if(flag_start == 1) //通过细分LCD段，达到刷新时间小于1ms效果，显示毫秒值 { if(flag_display == 0) { LCD_PutStr(0,0,time); LED_Digit(ledi_s); flag_display = 1; } else { LCD_PutStr(6,0,time); LED_Digit(ledi_s); } } } /************** 初始化 ******************/ void init() { Board_Init(); LCD_Init(); LCD_Clear(); LCD_PutStr(0,0," SST89E58 MCU "); LCD_PutStr(0,1," ljcwater "); Delay500Ms(); LED_Off(); P2 = 0x00; Delay100Ms(); Timer_Init(); timeold[0] = byte_verify(BLK1_DST_ADDR); //记录设定值 timeold[1] = byte_verify(BLK1_DST_ADDR1); timeold[3] = byte_verify(BLK1_DST_ADDR2); timeold[4] = byte_verify(BLK1_DST_ADDR3); timeold[6] = byte_verify(BLK1_DST_ADDR4); timeold[7] = byte_verify(BLK1_DST_ADDR5); timeold[8] = byte_verify(BLK1_DST_ADDR6); LCD_PutStr(0,1," 1 Set 2 Start "); //初始化显示屏 } /********************************* 记录设定值 ********************************/ void flash_get () { if(flag_rst == 1){ flash_main(BLK1_DST_ADDR); flash_main(BLK1_DST_ADDR1); flash_main(BLK1_DST_ADDR2); flash_main(BLK1_DST_ADDR3); flash_main(BLK1_DST_ADDR4); flash_main(BLK1_DST_ADDR5); flash_main(BLK1_DST_ADDR6); flag_rst = 0; } } /************************************************ 时间值加减的逻辑判断，处理递减过程中的进位问题 ************************************************/ void timeflow() { if(flag_start == 1){ if ((Timer_interr_flag==1) &&(flag_m == 1)){ Timer_interr_flag = 0; if(timeold[8] == 0){ if(timeold[7] == 0){ if(timeold[6] == 0){ timeold[6] =9; timeold[7] =9; timeold[8] =9; flag_ms = 0; flag_display = 0; } else{ timeold[6]--; timeold[7]=9; timeold[8]=9; } } else{ timeold[8]=9; timeold[7]--; } } else{ timeold[8]--; } } if (flag_ms == 0) { flag_ms = 1; if(timeold[3]==0) { if(timeold[4]==0){ timeold[3]=5; timeold[4]=9; flag_s = 0; } else{ timeold[4]--; } } else { if(timeold[4]==0){ timeold[4]=9; timeold[3]--; } else{ timeold[4]--; } } ledi_s=timeold[4]+timeold[3]*10; } if( flag_s == 0) { flag_s = 1; if(timeold[0]==0) { if(timeold[1]==0){ timeold[3]=0; //清零显存 timeold[4]=0; timeold[6]=0; timeold[7]=0; timeold[8]=0; flag_m = 0; } else{ timeold[1]--; } } else { if(timeold[1]==0){ timeold[1]=9; timeold[0]--; } else{ timeold[1]--; } } } } } void KEY1fucntion() { flag_mo = 1; if(flag_start==0) { LCD_PutStr(0,1,"1Mov 2Go 3+ 4- "); flag_set = 1; } else { Timer_Disable(); } if((flag_set == 1)&&(flag_mo == 1)) { if(movex==8){ movex=0; } else { movex++; } flag_mo = 0; } } void KEY2fucntion() { if(flag_set == 0){ flag_start = 1; } if((flag_start == 1)||(flag_set==1)){ flag_set = 0; } Timer_Enable(); LCD_PutStr(0,1,"1= 2Go 3Stp 4Rst "); } void KEY3fucntion() { if(flag_start == 1){ EA=0; timeold[0] = 0; timeold[1] = 1; timeold[3] = 0; timeold[4] = 0; timeold[7] = 0; timeold[8] = 0; } if(flag_set == 1) { if((movex==0)||(movex==3) ) { if(timeold[movex]==5) { timeold[movex] = 0; } else { timeold[movex]++; } } else { if(timeold[movex]==9) { timeold[movex] = 0; } else { timeold[movex]++; } } display_number(); //显存更行，不至于等到下一次 LCD_PutStr(0,0,time); } } void KEY4fucntion() { flag_rst = 1; // Timer_Disable(); if(flag_start == 1) { // init(); flag_m = 1; //进入数据处理的标志位应该也初始化，否则只能运行一次 LCD_PutStr(0,1," 1 Set 2 Start"); flag_start = 0; // flag_set = 0; flash_get(); } if(flag_set == 1) { if((movex==0)||(movex==3) ) { if(timeold[movex]==0) { timeold[movex] = 5; } else { timeold[movex]--; } } else { if(timeold[movex]==0) { timeold[movex] = 9; } else { timeold[movex]--; } } display_number(); //显存更新 LCD_PutStr(0,0,time); } } void main() { init(); while(1) { switch(QueryKeyPress()) { case KEY1: KEY1fucntion(); break; case KEY2: KEY2fucntion(); break; case KEY3: KEY3fucntion(); break; case KEY4: KEY4fucntion(); break; } timeflow(); diaplay(); } }