📄 smg19264a_m_exsample_c51.c
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//-------------------------------------------------------------------------------
//子程序名称:void putstr(unsigned char code *s).
//功能:写字符串点阵,若*s=0 表示字符串结束.
//修改日期:2009.8.18
//修改人:chujianjun@sunman.cn,tanchao@sunman.cn
//-------------------------------------------------------------------------------
void putstr(unsigned char code *s) //显示字符串子程序,字符码为0时退出
{ unsigned int c;
while(1)
{ c=*s;
s++;
if(c==0) break;
if(c<128)
putchar(c);
else
{ putchar(c*256+*s);
s++;
}
}
}
//-------------------------------------------------------------------------------
//子程序名称:unsigned char code *getchinesecodepos(unsigned char ac).
//功能:根据当前中文字符码查表后计算得到当前中文字符码的字库点阵位置.
//修改日期:2009.8.18
//修改人:chujianjun@sunman.cn,tanchao@sunman.cn
//-------------------------------------------------------------------------------
unsigned char code *getchinesecodepos(unsigned int ac)
{ unsigned int min,max,mid,midc;
min=0;
max=CHINESECHARNUMBER-1;
while(1)
{ if(max-min<2)
{ if(ChineseCode[min]==ac)
mid=min;
else if(ChineseCode[max]==ac)
mid=max;
else
mid=0;
break;
}
mid=(max+min)/2;
midc=ChineseCode[mid];
if(midc==ac)
break;
else if(midc>ac)
max=mid-1;
else
min=mid+1;
}
return ChineseCharDot+mid*CHINESECHARDOTSIZE;
}
//-------------------------------------------------------------------------------
//子程序名称:unsigned char code *getenglishcodepos(unsigned char ac).
//功能:根据当前ASCII字符码查表后计算得到当前ASCII字符码的字库点阵位置.
//修改日期:2009.8.18
//修改人:chujianjun@sunman.cn,tanchao@sunman.cn
//-------------------------------------------------------------------------------
unsigned char code *getenglishcodepos(unsigned char ac)
{ unsigned char min,max,mid,midc;
min=0;
max=ENGLISHCHARNUMBER-1;
while(1)
{ if(max-min<2)
{ if(EnglishCode[min]==ac)
mid=min;
else if(EnglishCode[max]==ac)
mid=max;
else
mid=0;
break;
}
mid=(max+min)/2;
midc=EnglishCode[mid];
if(midc==ac)
break;
else if(midc>ac)
max=mid-1;
else
min=mid+1;
}
return EnglishCharDot+mid*ENGLISHCHARDOTSIZE;
}
//-------------------------------------------------------------------------------
//以下putsizeimage为图形对象的基本子程序,putimage为图形对象的扩充子程序
//-------------------------------------------------------------------------------
//子程序名称:void putsizeimage(unsigned char XSIZE,unsigned YSIZE,
// unsigned char code *s)
//功能:在(XPOS,YPOS)位置绘制XSIZE列及YISZE行点阵的图形*S.
//修改日期:2009.8.31
//修改人:chujianjun@sunman.cn,tanchao@sunman.cn
//-------------------------------------------------------------------------------
void putsizeimage(unsigned char XSIZE,unsigned char YSIZE,unsigned char code *s)
{ unsigned char k,lx,ly,a1,a2,y,Lcd_Mask;
k=YPOS&0x7;
YSIZE+=k;
y=YPOS;
s--;
for(lx=0;lx<XSIZE;lx++,XPOS++)
{ for(YPOS=y,ly=k;ly<YSIZE;)
{ unsigned char p;
a1=*s;
s++;
a2=*s;
if(CharImageReverse)
{ a1=~a1;
a2=~a2;
}
for(p=0;p<k;p++)
{ a2>>=1;
if((a1&0x1)==1)
a2+=0x80;
a1>>=1;
}
if((k==0) && (YSIZE<ly+8))
{ lcdpos();
ly+=8;
YPOS+=8;
}
else
{ lcdpos();
a1=lcdrd();
lcdpos();
ly+=8;
YPOS+=8;
Lcd_Mask=0xff;
p=YSIZE&0x7;
while(p>0)
{ Lcd_Mask>>=1;
YPOS--;
p--;
}
p=0xff;
while(YSIZE<ly)
{ ly--;
YPOS--;
p<<=1;
}
Lcd_Mask&=p;
a2&=Lcd_Mask;
a2|=a1&(~Lcd_Mask);
}
lcdwd(a2);
}
if((k!=0) && (YSIZE&0x7 != 0) && (k >= YSIZE&0x7)) s--;
}
YPOS=y;
}
//-------------------------------------------------------------------------------
//子程序名称:void putimage(unsigned char code *s).
//功能:在(XPOS,YPOS)位置绘制XSIZE[*s]列及YISZE[*(s+1)]行点阵的图形[*(s+2)].
//修改日期:2009.8.18
//修改人:chujianjun@sunman.cn,tanchao@sunman.cn
//-------------------------------------------------------------------------------
void putimage(unsigned char code *s) //显示图形子程序
{ unsigned char XSIZE,YSIZE;
XSIZE=*s;
s++;
YSIZE=*s;
s++;
putsizeimage(XSIZE,YSIZE,s);
}
//-------------------------------------------------------------------------------
//以下point为绘图操作的基本子程序,line,lineto,rect为绘图操作的扩充子程序.
//-------------------------------------------------------------------------------
//子程序名称:void point(bit b).
//功能:按b的数据在(XPOS,YPOS)位置绘制点.
//修改日期:2009.8.18
//修改人:chujianjun@sunman.cn,tanchao@sunman.cn
//-------------------------------------------------------------------------------
void point(bit b)
{ unsigned char i,Lcd_Mask,j;
Lcd_Mask=0x01;
i=YPOS&0x7;
while(i>0)
{ Lcd_Mask<<=1;
i--;
}
lcdpos();
j=lcdrd();
lcdpos();
if(b)
lcdwd(j|Lcd_Mask);
else
lcdwd(j&(~Lcd_Mask));
}
//-------------------------------------------------------------------------------
//子程序名称:void line(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,bit b)
//功能:按b的数据绘制(x0,y0)-(x1,y1)的直线
//修改日期:2009.8.18
//修改人:chujianjun@sunman.cn,tanchao@sunman.cn
//-------------------------------------------------------------------------------
void line(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,bit b)
{ unsigned char dx,dy;
unsigned int dk;
XPOS=x0;
YPOS=y0;
point(b);
dx=(x1>=x0)?x1-x0:x0-x1;
dy=(y1>=y0)?y1-y0:y0-y1;
if(dx==dy)
{ while(XPOS!=x1)
{ if(x1>x0) XPOS++;else XPOS--;
if(y1>y0) YPOS++;else YPOS--;
point(b);
}
}
else if (dx>dy)
{ dk=dy;
dy=0;
while(XPOS!=x1)
{ if(x1>x0) XPOS++;else XPOS--;
dy++;
if(y1>y0) YPOS=y0+(dk*dy+dx/2)/dx;else YPOS=y0-(dk*dy+dx/2)/dx;
point(b);
}
}
else
{ dk=dx;
dx=0;
while(YPOS!=y1)
{ if(y1>y0) YPOS++;else YPOS--;
dx++;
if(x1>x0) XPOS=x0+(dk*dx+dy/2)/dy;else XPOS=x0-(dk*dx+dy/2)/dy;
point(b);
}
}
}
//-------------------------------------------------------------------------------
//子程序名称:void lineto(unsigned char x1,unsigned char y1,bit b)
//功能:按b的数据绘制(XPOS,YPOS)-(x1,y1)的直线
//修改日期:2009.8.18
//修改人:chujianjun@sunman.cn,tanchao@sunman.cn
//-------------------------------------------------------------------------------
void lineto(unsigned char x1,unsigned char y1,bit b)//绘制(XPOS,YPOS)-(X1,Y1)的直线
{ line(XPOS,YPOS,x1,y1,b);
}
//-------------------------------------------------------------------------------
//子程序名称:void rect(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,bit b)
//功能:按b的数据绘制(x0,y0)-(x1,y1)的矩形
//修改日期:2009.8.18
//修改人:chujianjun@sunman.cn,tanchao@sunman.cn
//-------------------------------------------------------------------------------
void rect(unsigned char x0,unsigned char y0,unsigned char x1,unsigned char y1,bit b)
{ line(x0,y0,x1,y0,b);
line(x1,y0,x1,y1,b);
line(x1,y1,x0,y1,b);
line(x0,y1,x0,y0,b);
}
//-------------------------------------------------------------------------------
//以下lcdfill,lcdpos,lcdreset为KS0108B型硬件接口的19264液晶显示模块的基本子程序
//-------------------------------------------------------------------------------
//子程序名称:void lcdfill(unsigned char d).
//功能:整屏显示d表示的字节数据.
//修改日期:2009.08.31
//修改人:chujianjun@sunman.cn,tanchao@sunman.cn
//-------------------------------------------------------------------------------
void lcdfill(unsigned char d) //整屏显示d代表的字节数据子程序
{ unsigned char j;
for(YPOS=0;YPOS<64;YPOS+=8) //8页
{ XPOS=0;
lcdpos();
for(j=0;j<64;j++) //64列
lcdwd1(d); //送图形数据
XPOS=64;
lcdpos();
for(j=0;j<64;j++) //64列
lcdwd2(d); //送图形数据
XPOS=128;
lcdpos();
for(j=0;j<64;j++) //64列
lcdwd3(d); //送图形数据
}
XPOS=0;
YPOS=0;
}
//-------------------------------------------------------------------------------
//子程序名称:void lcdpos(void).
//功能:设置坐标点(XPOS,YPOS)位置对应的内部RAM地址.
//修改日期:2009.11.04
//修改人:chujianjun@sunman.cn,tanchao@sunman.cn
//-------------------------------------------------------------------------------
void lcdpos(void) //设置坐标点(XPOS,YPOS)内部RAM地址的子程序
{
if(XPOS<64)
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