我做了两块LM13232屏幕，为什么清屏时两块屏都清了? -

#include "LM13232A.h"
#include "LMFONT.h"
#define _CS2 PCout(2)
#define _CS1 PCout(0)
#define _RST PCout(1)
#define RS PCout(11)
#define SCLK PCout(10)
#define SID PCout(9)
extern unsigned char LIG1[2];
extern unsigned char LIG2[2];
uchar ContrastLevel;
extern unsigned char LM_CS;
void lm13232_GPIO_ITN(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
void SdCmd(uchar Command)
{
uchar j;
SCLK = 1;
RS = 0;
if(LM_CS==0)
_CS1 = 0;
else
_CS2 = 0;
for(j=0;j<8;j++)
{
if(Command&0x80) SID=1;
else SID=0;
SCLK=0;
SCLK=1;
Command=Command<<1;
}
_CS1=1;
_CS2=1;
}
void SdData(uchar DData)
{
uchar j;
SCLK = 1;
RS = 1;
if(LM_CS==0)
_CS1 = 0;
else
_CS2 = 0;
for(j=0;j<8;j++)
{
if(DData&0x80) SID=1;
else SID=0;
SCLK=0;
SCLK=1;
DData=DData<<1;
}
_CS1=1;
_CS2=1;
}
//void WriteScreen(uchar *DisplayData)
//{
// uchar TempData;
// uchar i, j;
// for(i=0;i<4;i++)
// {
// SdCmd(0xb0 | i); // select page
// SdCmd(0x10); // start form column 0¿aê¼
// SdCmd(0x00); // (2byte command)
// for(j=0;j<132;j++)
// {
// TempData=(*(DisplayData+(i*132)+j));
// SdData(TempData);
// }
// }
//}
void LM_Pos(uchar x,uchar y)
{
SdCmd(0xb0+y);
SdCmd(((x&0xf0)>>4)|0x10);
SdCmd((x&0x0f)|0x01);
}
void LM_Cler(void)
{
uchar i,n;
for(i=0;i<8;i++)
{
SdCmd(0xb0+i);
SdCmd(0x00);
SdCmd(0x10);
for(n=0;n<132;n++)SdData(0x00);
}
}
void LM_ShowChar(uchar x,uchar y,uchar chr)
{
uchar c=0,i=0;
c=chr-' ';
if(x>Max_Column-1){x=0;y=y+2;}
if(SIZE ==16)
{
LM_Pos(x,y);
for(i=0;i<8;i++)
SdData(F8X16[c*16+i]);
LM_Pos(x,y+1);
for(i=0;i<8;i++)
SdData(F8X16[c*16+i+8]);
}
else
{
LM_Pos(x,y+1);
for(i=0;i<6;i++)
SdData(F6x8[c][i]);
}
}
int LM_pow(uchar m,uchar n)
{
int result=1;
while(n--)result*=m;
return result;
}
void LM_ShowNum(uchar x,uchar y,int num,uchar len,uchar size)
{
uchar t,temp;
uchar enshow=0;
for(t=0;t<len;t++)
{
temp=(num/LM_pow(10,len-t-1))%10;
if(enshow==0&&t<(len-1))
{
if(temp==0)
{
LM_ShowChar(x+(size/2)*t,y,' ');
continue;
}else enshow=1;
}
LM_ShowChar(x+(size/2)*t,y,temp+'0');
}
}
//ÏÔê¾ò»¸ö×Ö·ûoÅ′®
void LM_ShowString(uchar x,uchar y,uchar *chr)
{
unsigned char j=0;
while (chr[j]!='\0')
{ LM_ShowChar(x,y,chr[j]);
x+=8;
if(x>120){x=0;y+=2;}
j++;
}
}
void LM_ShowCHinese(uchar x,uchar y,uchar no)
{
u8 t,adder=0;
LM_Pos(x,y);
for(t=0;t<16;t++)
{
SdData(Hzk[2*no][t]);
adder+=1;
}
LM_Pos(x,y+1);
for(t=0;t<16;t++)
{
SdData(Hzk[2*no+1][t]);
adder+=1;
}
}
void LM_ShowCHinese_32(uchar x,uchar y,uchar no)
{
u8 t,adder=0;
LM_Pos(x,y);
for(t=0;t<32;t++)
{
SdData(Hzk[8*no][t]);
adder+=1;
}
LM_Pos(x,y+1);
for(t=0;t<32;t++)
{
SdData(Hzk[8*no+1][t]);
adder+=1;
}
}
void LM_DrawBMP(unsigned char x0, unsigned char y0,unsigned char x1, unsigned char y1,unsigned char BMP[])
{
unsigned int j=0;
unsigned char x,y;
if(y1%8==0) y=y1/8;
else y=y1/8+1;
for(y=y0;y<y1;y++)
{
LM_Pos(x0,y);
for(x=x0;x<x1;x++)
{
SdData(BMP[j++]);
}
}
}
void initLCDM(void)
{
lm13232_GPIO_ITN();
_CS1 = 1;
_CS2 = 1;
_RST = 1;
RS = 1;
SCLK = 1;
SID = 1;
// _RST=1;
_RST=0;
delay_ms(1);
_RST=1;
delay_ms(100);
ContrastLevel=0x0f;
SdCmd(0xaf);
SdCmd(0x40);
SdCmd(0xa0);
SdCmd(0xa6);
SdCmd(0xa4);
SdCmd(0xa2);
SdCmd(0xc8);
SdCmd(0x2f);
SdCmd(0x23);
SdCmd(0xf8);SdCmd(0x00);// Booster Ratio Set= 2x,3x,4x (2byte command)
SdCmd(0x81); // E-Vol setting
SdCmd(ContrastLevel); // (2byte command)
}
//-----------------------------------
// Main Program
//-----------------------------------
//void LM13232A(void)
//{
// unsigned char UU[]="LIHUAAN";
// int aa = 1106495953;
// initLCDM();
// LM_Cler();
// while(1)
// {
// LM_ShowChar(90,0,':');
// LM_ShowString(1,2, UU);
// LM_ShowNum(0,0,aa,10,16);
// LM_ShowCHinese(60,2,0);
// delay_ms(500);//Ñóê±300ms
// LM_Cler();
// LM_DrawBMP(0,0,*bmp1);
// delay_ms(500);//Ñóê±300ms
//// }
//}

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