我想通过键盘来切换lcd的显示界面(共四个界面),我觉得思路没问题,可是就是实现不了,下面是代码
void main()
{
LcdInit();
while(1)
{
//key_return=Keyscan();
Operation(Keyscan());
Show(interface);
}
}
void T0Init()
{
}
/*void T0() interrupt 1
{
}*/
void Operation(uchar key)//界面切换
{
switch(interface)
{
case 1:if(key==10)
interface=2;
//运行界面,启动定时器,同时切换界面
if(key==12)
interface=3;//设置界面
if(key==16)
interface=1;
break;
case 2:if(key==13)
{
interface=4;//查询界面
}
else if(key==11)
{
//TR0=0;
interface=1;
}
else if(key==12)
{
//TR0=0;
interface=3;
}
break;
case 3:if(key==10)
{
//TR0=1;
interface=2;
}
else if(key==11)
{
//TR0=0;
interface=1;
}
break;
case 4:if(key==11)
{
interface=2;
}
}
}
void Show(uchar n)
{
switch(n)
{
case 1:Interface_start();
break;
case 2:Interface_run();
break;
case 3:Interface_set();
break;
case 4:Interface_find();
break;
}
}
void refresh_date(uchar address,uchar date)
{
Write_cmd(0x80+address);
Write_data(date);
}
void Interface_start()//打开电源显示界面
{
//Write_cmd(0x01);
Write_cmd(0x80);
for(num=0;num<16;num++)
{
Write_data(table[num]);
delay(20);
}
Write_cmd(0x80+0x40);//第二行显示
for(num=0;num<16;num++)
{
Write_data(table1[num]);
delay(20);
}
Write_cmd(0x80+0x50);
Write_cmd(0x0c);//开显示,不显示光标,不闪烁
}
void Interface_run()//运行界面
{
LcdInit();
for(num=0;num<16;num++)
{
Write_data(table3[num]);
delay(20);
}
Write_cmd(0x80+0x40);//第二行显示
for(num=0;num<16;num++)
{
Write_data(table2[num]);
delay(20);
}
}
void Interface_set()//设置界面
{
Write_cmd(0x80+5);
Write_cmd(0x0f);
}
void Interface_find()//查询界面
{
refresh_date(0x40+5,table2[5]);
refresh_date(0x40+6,table2[6]);
refresh_date(0x40+7,table2[7]);
refresh_date(0x40+8,table2[8]);
refresh_date(0x40+9,table2[9]);
refresh_date(0x40+10,table2[10]);
refresh_date(0x40+11,table2[11]);
}
void LcdInit()
{
wela=0;//lcd和数码管共用P0
dula=0;//防止数码管干扰
lcd_en=0;
Write_cmd(0x38);//设置16*2显示,5*7点阵,8位数据口
Write_cmd(0x0f);//开显示,显示光标,光标闪烁
Write_cmd(0x06);
Write_cmd(0x01);//清除数据,防止出现错误
Write_cmd(0x80);
}
void Write_cmd(uchar cmd)
{
rs=0;//数据/命令选择段(h/l)
P0=cmd;
delay(5);
lcd_en=1;//使能信号,高脉冲
delay(5);
lcd_en=0;
}
void Write_data(uchar data_)
{
rs=1;
P0=data_;
delay(5);
lcd_en=1;
delay(5);
lcd_en=0;
}
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