void TIM3_IRQHandler(void)
{
if(TIM_GetITStatus(TIM3,TIM_IT_Update)==SET)
{
key=KEY_Scan(0);
if(key==1)
{
if(counter==0)
{
LCD_ShowString(60,160,210,16,24,"FIRST");
LCD_ShowxNum(175,160,count,2,24,0);
LCD_ShowxNum(135,160,second,2,24,0);
LCD_ShowString(160,160,210,16,24,":");
}
else
{
LCD_ShowString(60,190,210,16,24,"SECOND");
LCD_ShowxNum(175,190,count,2,24,0);
LCD_ShowxNum(135,190,second,2,24,0);
LCD_ShowString(160,190,210,16,24,":");
}
counter++;
if(counter>=2)
{
counter=0;
}
while(1)
{
key=KEY_Scan(0);
if(key==1)
break;
{
GPIO_ResetBits(GPIOA,GPIO_Pin_7);
delay_ms(50);
GPIO_SetBits(GPIOA,GPIO_Pin_7);
delay_ms(50);
}
}
}
else
count++;
if(count>=100)
{
count= 0;
second++;
}
if(second>=60)
second=0;
}