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标题: 学习第9节双按键触发哪个地方出错了，为什么过不去呢 [打印本页]

作者: trm999 时间: 2014-9-25 23:54
标题: 学习第9节双按键触发哪个地方出错了，为什么过不去呢
本人是个初学，学到老师第9节双击按键触发，双击可以实现，可是按键1时间大于间隔时间会重新计数，按键2时间间隔无论多久都可以形成双击键，不是应该间隔时间大于设定应该重新来吗？程序贴上来大家帮忙找找，谢谢！

#include "reg52.h"

#define const_voice_short 40

#define const_key_time1 20
#define const_key_time2 20

#define const_interval_time1 200
#define const_interval_time2 200

void initial_myself();
void initial_peripheral();
void delay_long(unsigned int uiDelaylong);
void T0_time();
void key_service();
void key_scan();

sbit key_sr1=P3^3;
sbit key_sr2=P3^2;
sbit key_gnd_dr=P3^4;

sbit beep_dr=P2^0;

unsigned char ucKeySec=0;

unsigned int uiKeyTimeCnt1=0;
unsigned char ucKeyLock1=0;
unsigned char ucKeyTouchCnt1=0;
unsigned int uiKeyIntervalCnt1=0;

unsigned int uiKeyTimeCnt2=0;
unsigned char ucKeyLock2=0;
unsigned char ucKeyTouchCnt2=0;
unsigned int uiKeyIntervalCnt2=0;

unsigned int uiVoiceCnt=0;

char code dx516[3] _at_ 0x003b;

void main()
{
initial_myself();
delay_long(100);
initial_peripheral();
while(1)
{
key_service();
}
}

void key_scan()
{
if(key_sr1==1)
{
ucKeyLock1=0;
uiKeyTimeCnt1=0;
if(ucKeyTouchCnt1>0)
{
uiKeyIntervalCnt1++;
if(uiKeyIntervalCnt1>const_interval_time1)
{
uiKeyIntervalCnt1=0;
ucKeyTouchCnt1=0;
}
}
}
else if(ucKeyLock1==0)
{
uiKeyTimeCnt1++;
if(uiKeyTimeCnt1>const_key_time1)
{
uiKeyTimeCnt1=0;
ucKeyLock1=1;
uiKeyIntervalCnt1=0;

ucKeyTouchCnt1++;
if(ucKeyTouchCnt1>1)
{
ucKeyTouchCnt1=0;
ucKeySec=1;
}
}
}
if(key_sr2==1)
{
ucKeyLock2=0;
uiKeyTimeCnt2=0;
if(ucKeyTouchCnt2>0)
{
uiKeyIntervalCnt2++;
if(ucKeyTouchCnt2>const_interval_time2)
{
uiKeyIntervalCnt2=0;
ucKeyTouchCnt2=0;
}
}
}
else if(ucKeyLock2==0)
{
uiKeyTimeCnt2++;
if(uiKeyTimeCnt2>const_key_time2)
{
uiKeyTimeCnt2=0;
ucKeyLock2=1;
uiKeyIntervalCnt2=0;

ucKeyTouchCnt2++;
if(ucKeyTouchCnt2>1)
{
ucKeyTouchCnt2=0;
ucKeySec=2;
}
}
}
}

void key_service()
{
switch(ucKeySec)
{
case 1:
uiVoiceCnt=const_voice_short;
ucKeySec=0;
break;
case 2:
uiVoiceCnt=const_voice_short;
ucKeySec=0;
break;
}
}

void T0_time() interrupt 1
{
TF0=0;
TR0=0;

key_scan();

if(uiVoiceCnt!=0)
{
uiVoiceCnt--;
beep_dr=0;
}
else
{
;
beep_dr=1;
}

TH0=0xf8;
TL0=0x2f;
TR0=1;
}

void delay_long(unsigned int uiDelaylong)
{
unsigned int i;
unsigned int j;
for(i=0;i<uiDelaylong;i++)
{
for(j=0;j<500;j++)
{
;
}
}
}

void initial_myself()
{
key_gnd_dr=0;
beep_dr=1;

TMOD=0x01;
TH0=0xf8;
TL0=0x2f;
}

void initial_peripheral()
{
EA=1;
ET0=1;
TR0=1;
}

作者: trm999 时间: 2014-9-26 00:16
重新写了一遍就好了，这是什么问题？？？？没看出来有什么区别呀？

作者: jianhong_wu 时间: 2014-9-26 10:19

trm999 发表于 2014-9-26 00:16
重新写了一遍就好了，这是什么问题？？？？没看出来有什么区别呀？

问题解决了吧？解决了就好。

作者: trm999 时间: 2014-9-26 11:56

jianhong_wu 发表于 2014-9-26 10:19
问题解决了吧？解决了就好。

谢谢鸿哥关注

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