单片机电子时钟设计报告 - 图文

u8DigShow2 = 15; u8DigShow3 = 15; u8DigShow4 = 15; u8DigShow5 = 15; u8DigShow6 = 15; u8DigShow7 = 15; u8DigShow8 = 15; tim_flag = 0; shi = 0; fen = 0; miao = 0;

__g_window = 1; __g_winsta = 1; part = 0;

ES=1;

delay_ms(1000); }

void delay_ms(u16 cnt) {

u16 x;

for( ; cnt>0; cnt--) {

for(x=110; x>0; x--); } }

void delay_us(u16 cnt) {

while(cnt--); }

void DisDri(void) {

static u8 u8DisStep = 1;

DIG_SEG = 0x00; switch(u8DisStep) {

case 1: {

u8DigShowTemp=u8DigTab[u8DigShow1];

DIG_SEG = u8DigShowTemp;

DIG_PLA = 0xfe; }

break;

case 2: {

u8DigShowTemp=u8DigTab[u8DigShow2];

DIG_SEG = u8DigShowTemp; DIG_PLA = 0xfd; }

break; case 3: {

u8DigShowTemp=u8DigTab[u8DigShow3];

DIG_SEG = u8DigShowTemp; DIG_PLA = 0xfb; }

break; case 4: {

u8DigShowTemp=u8DigTab[u8DigShow4];

DIG_SEG = u8DigShowTemp; DIG_PLA = 0xf7; }

break; case 5: {

u8DigShowTemp=u8DigTab[u8DigShow5];

DIG_SEG = u8DigShowTemp; DIG_PLA = 0xef; }

break; case 6: {

u8DigShowTemp=u8DigTab[u8DigShow6];

DIG_SEG = u8DigShowTemp; DIG_PLA = 0xdf; }

break; }

u8DisStep++;

if(u8DisStep>6) {

u8DisStep=1; } }

void time_init(void) {

TMOD |= 0x01; TH0 = 0xf8;

TL0 = 0x2f;//???????(65535-63535) TR0 = 1;//????? ET0 = 1;//??? EA = 1; }

void time0_interrupt() interrupt 1 {

static u16 base_2ms_buff; static u16 bas_tim;

TF0 = 0;//???? TR0 = 0;

if (tim_flag == 1) {

if (++bas_tim>2500) {

tim_flag = 0; } }

base_2ms_buff++;

if(500==base_2ms_buff) { miao++; base_2ms_buff=0;

if(miao==60) { fen++; miao=0;

if(fen==60) { shi++; fen=0;

if(shi==24) { shi=0; fen=0; miao=0; } } } }

DisDri();

TH0 = 0xf8;

TL0 = 0x2f;//????(65535-63535) TR0 = 1; }