51单片机开发板的LCD9648菜单程序无法正常显示 -

#include <reg52.h>
#include <intrins.h>
sbit CS0 = P0^0; //????
sbit RST = P0^1; //?′??
sbit RS = P2^7; //êy?Y?üá???????
sbit SCL = P2^6; //SPIê±?ó??
sbit SDA = P2^5; //SPIêy?Y??
sbit KEY_ADD=P3^3; //按键
sbit KEY_DEC=P3^4;
unsigned char curr,currold;//全局变量，当前箭头位置
unsigned char code user16x16[]={
0x00,0x00,0x20,0x00,0x30,0x00,0x38,0x00,0x3C,0x00,0x3E,0x00,0x3F,0x00,0x3F,0x80,
0x3F,0xC0,0x3F,0x80,0x3F,0x00,0x3E,0x00,0x3C,0x00,0x38,0x00,0x30,0x00,0x20,0x00,
};
unsigned char code *MainMenu[]=
{
{" 1.设置1"},
{" 2.设置2"},
{" 3.设置3"},
{" 4.设置4"},
{" 5.设置5"},
{" 6.设置6"},
{" 7.设置7"},
{" 8.设置8"},
{" 9.设置9"},
{" 0.设置0"},
};
void Delay10ms(unsigned int c) //?ó2? 0us
{
unsigned char a,b;
for(;c>0;c--)
for(b=38;b>0;b--)
for(a=130;a>0;a--);
}
void SendDataSPI(unsigned char dat)
{
unsigned char i;
for(i=0; i<8; i++)
{
if( (dat&0x80)!=0 ) SDA = 1;
else SDA = 0;
dat <<= 1;
SCL = 0;
SCL = 1;
}
}
void WriteComm(unsigned int i)
{
CS0 = 0;
RS = 0;
SendDataSPI(i);
CS0 = 1;
}
void WriteData(unsigned char i)
{
CS0 = 0;
RS = 1;
SendDataSPI(i);
CS0 = 1;
}
void LCD_Init(void)
{
unsigned int i;
//CS0=0;
RST=1;
for(i = 0; i < 1000; i++);
RST=0;
for(i = 0; i < 1000; i++);
RST=1;
for(i = 0; i < 1000; i++);
WriteComm(0xe2); //èí?t?′??
WriteComm(0xc8); //0xC8??í¨·??ò????????·′?ò￡?0xC0?a?y3￡·??ò
WriteComm(0xa0); //0xA0??·??ò?????y3￡·??ò￡¨0xA1?a·′·??ò
WriteComm(0x2f);
WriteComm(0x26);
WriteComm(0x81); //±3?°1a??±è?è
WriteComm(0x10);
WriteComm(0xaf); //?a????ê?
}
void Clear()
{
unsigned char i,j;
for(i=0; i < 9; i++)
{
WriteComm(0x40);
WriteComm(0xb0+i);
WriteComm(0x10);
WriteComm(0x00);
for(j = 0; j < 96; j++)
{
WriteData(0x00);
}
}
}
/***********************************************
用户自定义字符
***********************************************/
void CGRAM()
{
int i;
// WriteComm(0x30);
WriteComm(0x40);
for(i=0;i<16;i++)
{
WriteData(user16x16[i*2]);
WriteData(user16x16[i*2+1]);
}
}
/***********************************************
显示用户自定义字符
***********************************************/
void DisplayCGRAM(unsigned char x,unsigned char y)
{
switch(y)
{
case 1: WriteComm(0xb0+x);break;
case 2: WriteComm(0xb1+x);break;
case 3: WriteComm(0xb2+x);break;
// case 4: WriteComm(0x98+x);break;
default:break;
}
WriteData(00);
WriteData(00);
}
/***********************************************
显示字符串
x:横坐标值，范围0~8
y:纵坐标值，范围1~4
***********************************************/
void LCD_PutString(unsigned char x,unsigned char y,unsigned char code *s)
{
switch(y)
{
case 1: WriteComm(0xb0+x);break;
case 2: WriteComm(0xb1+x);break;
case 3: WriteComm(0xb2+x);break;
// case 4: WriteComm(0x98+x);break;
default:break;
}
while(*s>0)
{
WriteData(*s);
s++;
Delay10ms(50);
}
}
/***********************************************
清屏
***********************************************/
void ClrScreen()
{
WriteComm(0x01);
Delay10ms(15);
}
/***********************************************
调用显示更新
***********************************************/
void DisplayUpdata(void)
{
unsigned char num;
ClrScreen();
num=sizeof(MainMenu)/sizeof(MainMenu[0]);//判断数组中数值个数
if((0+(curr/4)*4)<num)
LCD_PutString(0,1,MainMenu[0+(curr/4)*4]);
else //如果超出数组最大元素，则写空信息，不判断此信息可能会出现乱码
LCD_PutString(0,1,"");
if((1+(curr/4)*4)<num)
LCD_PutString(0,2,MainMenu[1+(curr/4)*4]);
else
LCD_PutString(0,2,"");
if((2+(curr/4)*4)<num)
LCD_PutString(0,3,MainMenu[2+(curr/4)*4]);
else
LCD_PutString(0,3,"");
if((3+(curr/4)*4)<num)
LCD_PutString(0,4,MainMenu[3+(curr/4)*4]);
else
LCD_PutString(0,4,"");
DisplayCGRAM(0,curr%4+1);
}
/***********************************************
MAIN
***********************************************/
void main()
{
LCD_Init();
CGRAM(); //写入自定义字符
DisplayUpdata();
while(1)
{
if(curr!=currold) //光标位置变化，则更新显示
{
DisplayUpdata();
currold=curr;
}
if(!KEY_ADD)
{
Delay10ms(10);
if(!KEY_ADD)
{
while(!KEY_ADD);
{
if(curr<sizeof(MainMenu)/sizeof(MainMenu[0])-1)
//判断数组中数值个数
{ curr++; }
}
}
}
if(!KEY_DEC)
{
Delay10ms(10);
if(!KEY_DEC)
{
while(!KEY_DEC);
{
if(curr>0)
{ curr--; }
}
}
}
}
}

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