GP32闹钟.doc

#include Includes.h /总头文件#define KEYP PTD#define KEYD DDRD#define KEYPEU PTDPUEunsigned char sec=0; /秒,分，小时unsigned char minit=0;unsigned char hour=0;unsigned char k=0,0,0,0,s=0,0,0,0;/Timer1Init:定时器初始化-*/功能：将定时器初始化为一秒钟一次溢出中断。/-*void Timer1Init(void) /不允许溢出中断、不启动计数、分频因子 64 T1SC=0b00100110; /计数器寄存器初值0x0000 T1CNTH=0x00; T1CNTL=0x00; /1秒产生1次溢出中断，预置寄存器1(2457600/64)=9600 T1MODH=0x96; T1MODL=0x00;void Timer1Over(void) /定时器溢出子程序 DisableMCUInt(); sec+; /秒加1 T1SC&= (17); /清除定时器溢出标志位 EnableMCUInt();void Delay(int times) int i; for(i=0;itimes;i+); void LEDshow(unsigned char a) unsigned char i;const unsigned char Table10=0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F; /显示码表 DDRB = 0xff; /数据口为输出 DDRC = 0xff; /位选口为输出 PTB = 0x0; /数据口输出全0，即全不亮 for (i=0;i4;i+) PTC = (0b00000001 i); /送位选信号 PTB = Tableai; /取显示码并送到LED数据线if ( (sec%2=0) &i=1)PTB= Tableai+0x80; Delay(100); unsigned char key_scan(void) /键盘扫描函数 int i; unsigned char line, row, k_value; static unsigned char lastkey=0xff; const unsigned char KBTable = 0xEE,7,0xDE,4,0xBE,1,0x7E,0, 0xED,8,0xDD,5,0xBD,2,0x7D,A, 0xEB,9,0xDB,6,0xBB,3,0x7B,B, 0xE7,C,0xD7,D,0xB7,E,0x77,F, 0x00,0xff ; /PTD0PTD3输出0 KEYD =0x0f; KEYPEU=0xf0; KEYP=KEYP & 0xF0; if (KEYP & 0xf0) = 0xf0) return 0xff; /无键按下 row = KEYP; /延时，消除抖动 for(i=0;i100;i+); if (row != KEYP) return 0xff; /判为抖动,无键按下 line=0xFE; for (i=0;i4;i+) KEYP = line; /输出扫描信号 row=KEYP; /读键盘口 if (row & 0xf0) != 0xf0) break; line=(line1)+1; if (i=4) return 0xff; k_value = (row & 0xf0) | (line & 0x0f) ; for (i=0; i32; i+=2) if (k_value = KBTablei) break; if(lastkey=KBTablei+1) return 0xff; lastkey=KBTablei+1; return KBTablei+1;void timeset() unsigned char j=0,m=0; unsigned char key; while(1) /设置当前时间 LEDshow(s); if (j=4) key=0xff; break; key=key_scan(); if (key=0xff) continue; key = key-0x30; sj=key; j+; void alarmset() unsigned char j=0,m=0; unsigned char key; while(1) /设置闹钟时间 LEDshow(k); if (m=4) break; key=key_scan(); if (key=0xff) continue; key = key - 0x30; km=key; m+; /主函数void main() unsigned char a=0,0,0,0; unsigned char kk; DisableMCUInt(); /禁止总中断 MCUInit(); /芯片初始化 Timer1Init(); /定时器1的初始化 T1SC|=(16); /令T1SC.6=1,开放Timer1溢出中断 T1SC &= (1=60) minit+; sec=0; if (minit=60) hour+;minit=0; a0 =s0+hour/10; a1 =s1+hour %10; a2 =s2+minit/10; a3