Question

求一下单片机的程序编码总体作用和每一步的作用（4）

液晶初始化子程序
/*************初始化*************/
void T0_INT() interrupt 1
{
TH0=-50000/256;
TL0=-50000%256;
if(++tCount!=2)return;
tCount=0;
Format_DateTime(DateTime[6],LCD_DSY_BUFFER1+5);
Format_DateTime(DateTime[4],LCD_DSY_BUFFER1+8);
Format_DateTime(DateTime[3],LCD_DSY_BUFFER1+11);
strcpy(LCD_DSY_BUFFER1+13,WEEK[DateTime[5]-1]);

Format_DateTime(DateTime[2],LCD_DSY_BUFFER2+5);
Format_DateTime(DateTime[1],LCD_DSY_BUFFER2+8);
Format_DateTime(DateTime[0],LCD_DSY_BUFFER2+11);

Display_LCD_String(0x00,LCD_DSY_BUFFER1);
Display_LCD_String(0x40,LCD_DSY_BUFFER2);

}

Answer 1

void T0_INT() interrupt 1
{
TH0=-50000/256;//定时器重新赋初值
TL0=-50000%256;
if(++tCount!=2)return;//如果是两次定时器中断（应该是100ms）则执行下面的程序
tCount=0;//计数值清0
Format_DateTime(DateTime[6],LCD_DSY_BUFFER1+5);//此为函数应该是液晶对应位置显示更新，以下也是
Format_DateTime(DateTime[4],LCD_DSY_BUFFER1+8);
Format_DateTime(DateTime[3],LCD_DSY_BUFFER1+11);
strcpy(LCD_DSY_BUFFER1+13,WEEK[DateTime[5]-1]);

Format_DateTime(DateTime[2],LCD_DSY_BUFFER2+5);
Format_DateTime(DateTime[1],LCD_DSY_BUFFER2+8);
Format_DateTime(DateTime[0],LCD_DSY_BUFFER2+11);

Display_LCD_String(0x00,LCD_DSY_BUFFER1);
Display_LCD_String(0x40,LCD_DSY_BUFFER2);

}

Answer 2

void T0_INT() interrupt 1
{
TH0=-50000/256; //定时器0重赋值，12M晶振时为50毫秒中断一次
TL0=-50000%256;
if(++tCount!=2)return;100毫秒（2次中断）处理一次后面过程
tCount=0;
Format_DateTime(DateTime[6],LCD_DSY_BUFFER1+5); //以下格式化设置日期
Format_DateTime(DateTime[4],LCD_DSY_BUFFER1+8);
Format_DateTime(DateTime[3],LCD_DSY_BUFFER1+11);
strcpy(LCD_DSY_BUFFER1+13,WEEK[DateTime[5]-1]);

Format_DateTime(DateTime[2],LCD_DSY_BUFFER2+5); //以下格式化设置时间 Format_DateTime(DateTime[1],LCD_DSY_BUFFER2+8);
Format_DateTime(DateTime[0],LCD_DSY_BUFFER2+11);

Display_LCD_String(0x00,LCD_DSY_BUFFER1); //格式化显示日期
Display_LCD_String(0x40,LCD_DSY_BUFFER2); //格式化显示时间

}