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利用TMS320F2812DSP芯片和汇编语言实现LCD的现实，利用该例程可方便的实现LCD的界面化显示
#include "DSP28_Device.h"
extern const Uint16 LIB32x33[];
extern const Uint16 LIB16x24[];
extern const Uint16 LIB24x24[];
extern const Uint16 LIB16x16[];
extern const Uint16 LIB8x16[];
extern const Uint16 LIB64[];
extern const Uint16 *WhiteList[];
extern const Uint16 *WordList0[];
extern const Uint16 *WordList1[];
extern const Uint16 *WordList2[];
extern const Uint16 *IconList[];
//LCD初始化
void lcd_init(void)
{
LCD_COM = 0x40;
LCD_DAT = 0x30;
LCD_DAT = 0x87;
LCD_DAT = 0x07;
LCD_DAT = 0x27;
LCD_DAT = 0x2B;
LCD_DAT = 0xEF;
LCD_DAT = 0x29;
LCD_DAT = 0x00;
LCD_COM = 0x44;
LCD_DAT = 0x00;
LCD_DAT = 0x00;
LCD_DAT = 0xF0;
LCD_DAT = 0x00;
LCD_DAT = 0x2A;
LCD_DAT = 0xF0;
LCD_DAT = 0x00;
LCD_DAT = 0x54;
LCD_DAT = 0x00;
LCD_DAT = 0x00;
LCD_COM = 0x5A;
LCD_DAT = 0x00;
LCD_COM = 0x5B;
LCD_DAT = 0x1C;
LCD_COM = 0x59;
LCD_DAT = 0x54;
}
//清除第一显示缓冲区
void clearscr1(void)
{
Uint16 i;
LCD_COM = 0x46;
LCD_DAT = 0x00;
LCD_DAT = 0x00;
LCD_COM = 0x4c;
LCD_COM = 0x42;
for (i=0;i<0x2A00;i++) LCD_DAT=0x00;
}
//清除第二显示缓冲区
void clearscr2(void)
{
Uint16 i;
LCD_COM = 0x46;
LCD_DAT = 0x00;
LCD_DAT = 0x2A;
LCD_COM = 0x4c;
LCD_COM = 0x42;
for (i=0x2A00;i<0x5400;i++) LCD_DAT=0x00;
}
//清除第三显示缓冲区
void clearscr3(void)
{
Uint16 i;
LCD_COM = 0x46;
LCD_DAT = 0x00;
LCD_DAT = 0x54;
LCD_COM = 0x4c;
LCD_COM = 0x42;
for (i=0x5400;i<0x8000;i++) LCD_DAT=0x00;
}
void clearline(Uint16 x1, Uint16 y1,Uint16 x2, Uint16 y2, Uint16 partition)
{
union
{
Uint16 total;
struct
{
Uint16 low:8;
Uint16 high:8;
}e;
}d;
Uint16 i,k;
if (x1>x2) {i=x1;x1=x2;x2=i;}
if (y1>y2) {i=y1;y1=y2;y2=i;}
k = x2-x1 ;
while(y1<y2)
{
d.total=x1+y1*41;
if (partition==2) d.total=d.total+0x2a00;
if (partition==3) d.total=d.total+0x5400;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x4c;
LCD_COM = 0x42;
for (i=0;i<k;i++) LCD_DAT = 0x00;
y1++;
}
}
//画点
void dot(Uint16 x, Uint16 y, Uint16 partition)
{
union
{
Uint16 total;
struct
{
Uint16 low:8;
Uint16 high:8;
}e;
}d;
Uint16 i,j,dot1;
d.total=(y-1)*41+(x-1)/8;
dot1=(x-1)%8;
if (partition==2) d.total=d.total+0x2a00;
if (partition==3) d.total=d.total+0x5400;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x43;
i = LCD_COM;
j = 0x8000;
j = j>>(dot1+8);
i = i|j;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x42;
LCD_DAT = i;
}
//消点
void NoDot(Uint16 x, Uint16 y, Uint16 partition)
{
union
{
Uint16 total;
struct
{
Uint16 low:8;
Uint16 high:8;
}e;
}d;
Uint16 i,j,dot1;
d.total=(y-1)*41+(x-1)/8;
dot1=(x-1)%8;
if (partition==2) d.total=d.total+0x2a00;
if (partition==3) d.total=d.total+0x5400;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x43;
i = LCD_COM;
j = 0x8000;
j = j>>(dot1+8);
i = i & ~j;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x42;
LCD_DAT = i;
}
//画横线（实线）
void drawabscissa(Uint16 y, Uint16 x1, Uint16 x2, Uint16 partition)
{
Uint16 i;
if (x1>x2) { i=x1; x1=x2; x2=i;}
if (x2>320) x2=320;
if (y>240) y=240;
for( i=x1;i<=x2;i++) dot(i,y,partition);
}
//画横线（虚线）
void drawabscissa1(Uint16 y,Uint16 x1, Uint16 x2, Uint16 space, Uint16 partition)
{
Uint16 i;
if (x1>x2) { i=x1; x1=x2; x2=i;}
if (x2>320) x2=320;
if (y>240) y=240;
for( i=x1;i<=x2;i+=space) dot(i,y,partition);
}
//画竖线（实线）
void drawordinate(Uint16 x, Uint16 y1, Uint16 y2, Uint16 partition)
{
Uint16 i;
if (y1>y2) { i=y1; y1=y2; y2=i;}
if (x>320) x=320;
if (y2>240) y2=240;
for(i=y1;i<=y2;i++) dot(x,i,partition);
}
//画竖线（虚线线）
void drawordinate1(Uint16 x, Uint16 y1, Uint16 y2, Uint16 space,Uint16 partition)
{
Uint16 i;
if (y1>y2) { i=y1; y1=y2; y2=i;}
if (x>320) x=320;
if (y2>240) y2=240;
for(i=y1;i<=y2;i+=space) dot(x,i,partition);
}
//画矩形
void drawarea(Uint16 x1, Uint16 y1, Uint16 x2, Uint16 y2, Uint16 partition)
{
drawabscissa(y1,x1,x2,partition);
drawordinate(x1,y1,y2,partition);
drawordinate(x2,y1,y2,partition);
drawabscissa(y2,x1,x2,partition);
}
//画曲线
void liner(Uint16 x1,Uint16 y1,Uint16 x2,Uint16 y2, Uint16 Dsp,Uint16 partition)
{
int dx,dy;
int t1,t2;
int e,i;
int x,y;
int sx,sy;
dx=abs(x2-x1);
dy=abs(y2-y1);
if (x2 > x1)
sx=1;
else
sx=-1;
if (y2 > y1)
sy=1;
else
sy=-1;
x=x1;
y=y1;
if (dx > dy) {
t1=2*dy;
t2=2*(dy-dx);
e=2*dy-dx;
for ( i=0;i<dx;i++)
{
if (Dsp) dot(x,y,partition);
else NoDot(x,y,partition);
x=x+sx;
if ( e>=0 )
{
y=y+sy;
e=e+t2;
}
else
e=e+t1;
}
}
else{
t1=2*dx;
t2=2*(dx-dy);
e=2*dx-dy;
for(i=0;i<dy;i++)
{
if (Dsp) dot(x,y,partition);
else NoDot(x,y,partition);
y=y+sy;
if (e>=0)
{
x=x+sx;
e=e+t2;
}
else { e=e+t1;}
}
}
}
//画条形图
void DrawBar(Uint16 x, Uint16 y,Uint16 high, Uint16 partition)
{
union{
Uint16 total;
struct{
Uint16 low:8;
Uint16 high:8;
}e;
}d;
Uint16 j;
d.total=x+(y-high)*41;
if (partition==2) d.total=d.total+0x2a00;
if (partition==3) d.total=d.total+0x5400;
LCD_COM = 0x4F;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x42;
for (j=0;j<high;j++) LCD_DAT=0x78;
}
//清条形图
void ClearBar(Uint16 x, Uint16 y, Uint16 high, Uint16 partition)
{
union{
Uint16 total;
struct{
Uint16 low:8;
Uint16 high:8;
}e;
}d;
Uint16 j;
d.total=x+(y-high)*41;
if (partition==2) d.total=d.total+0x2a00;
if (partition==3) d.total=d.total+0x5400;
LCD_COM = 0x4F;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x42;
for (j=0;j<high;j++) LCD_DAT=0x00;
}
//==============================================================================
//************************* PAGE 2 ********************************************
//==============================================================================
// 显示32x33点阵字
void display0(Uint16 dsp,Uint16 x, Uint16 y,Uint16 condition,Uint16 partition)
{
union
{
Uint16 total;
struct
{
Uint16 low:8;
Uint16 high:8;
}e;
}d;
Uint16 dspah;
Uint16 i,j,k;
const Uint16 *word;
if(dsp<500) k=2,word=LIB16x24,dspah=dsp*48;
else k=4,word=LIB32x33,dspah=(dsp-500)*132;
for(i=0;i<k;i++)
{
d.total=x+y*41+i;
if (partition==2) d.total=d.total+0x2a00;
if (partition==3) d.total=d.total+0x5400;
LCD_COM = 0x4F;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x42;
// temp = tempLow = tempHigh = 0x0000;
for (j=0;j<33;j++)
{
dsp=word[dspah+j*k+i];
if (condition==0) LCD_DAT = dsp;
else LCD_DAT = ~dsp;
}
}
}
// 显示16x16点阵字
void display1(Uint16 dsp,Uint16 x, Uint16 y,Uint16 condition,Uint16 partition)
{
union
{
Uint16 total;
struct
{
Uint16 low:8;
Uint16 high:8;
}e;
}d;
Uint16 dspah;
Uint16 i,j,k;
const Uint16 *word;
if(dsp<500) k=3,word=LIB24x24,dspah=dsp*72;
else k=2,word=LIB16x16,dspah=(dsp-500)*32;
for(i=0;i<k;i++)
{
d.total=x+y*41+i;
if (partition==2) d.total=d.total+0x2a00;
if (partition==3) d.total=d.total+0x5400;
LCD_COM = 0x4F;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x42;
for (j=0;j<16;j++)
{
dsp=word[dspah+j*k+i];
if (condition==0) LCD_DAT = dsp;
else LCD_DAT = ~dsp;
}
}
}
//显示8x16点汉字
void display2(Uint16 dsp,Uint16 x, Uint16 y,Uint16 condition,Uint16 partition) /*显示16x24点阵，24X24点阵*/
{
union
{
Uint16 total;
struct
{
Uint16 low:8;
Uint16 high:8;
}e;
}d;
Uint16 dspah;
Uint16 i,j,k;
const Uint16 *word;
if(dsp<500) k=2,word=LIB16x16,dspah=dsp*32;
else k=1,word=LIB8x16,dspah=(dsp-500)*16;
for(i=0;i<k;i++)
{
d.total=x+y*41+i;
if (partition==2) d.total=d.total+0x2a00;
if (partition==3) d.total=d.total+0x5400;
LCD_COM = 0x4F;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x42;
for (j=0;j<16;j++)
{
dsp=word[dspah+j*k+i];
if (condition==0) LCD_DAT = dsp;
else LCD_DAT = ~dsp;
}
}
}
void display64(Uint16 dsp,Uint16 x, Uint16 y,Uint16 condition,Uint16 partition)
{
union
{
Uint16 total;
struct
{
Uint16 low:8;
Uint16 high:8;
}e;
}d;
Uint16 dspah;
Uint16 i,j;
const Uint16 *word;
word=LIB64,dspah=dsp*512;
for(i=0;i<8;i++)
{
d.total=x+y*41+i;
if (partition==2) d.total=d.total+0x2a00;
if (partition==3) d.total=d.total+0x5400;
LCD_COM = 0x4F;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x42;
for (j=0;j<64;j++)
{
dsp=word[dspah+j*8+i];
if (condition==0) LCD_DAT = dsp;
else LCD_DAT = ~dsp;
}
}
}
void ShowWord(Uint16 menunum,Uint16 partition )
{
Uint16 a,b,m=0;
const Uint16 *mnum;
if(menunum<500) mnum=WordList1[menunum];
else mnum=WordList2[menunum-500];
while (mnum[m]!=last)
{
a=mnum[m],m++;
b=mnum[m],m++;
while (mnum[m]!= end)
{
if(menunum<500) display1(mnum[m],a,b,0,partition),a++;
else display2(mnum[m],a,b,0,partition);
if (mnum[m]>=500) a++;
m++;
}
m++;
}
}
void ShowIcon(Uint16 menunum,Uint16 partition )
{
Uint16 a,b,m=0;
const Uint16 *mnum;
mnum=IconList[menunum];
while (mnum[m]!=last)
{
a=mnum[m],m++;
b=mnum[m],m++;
while (mnum[m]!= end)
{
display64(mnum[m],a,b,0,partition),a++,a++,a++,a++;
m++;
}
m++;
}
}
void ShowChar(Uint16 menunum,Uint16 Num,Uint16 partition )
{
Uint16 a,b,m=0;
Uint16 TempNum=0;
const Uint16 *mnum;
if(menunum<500) mnum=WordList1[menunum];
else mnum=WordList2[menunum-500];
while (TempNum != Num)
{
while (mnum[m]!= end)
{
m++;
}
TempNum++;
m++;
if (mnum[m] == last) return;
}
a=mnum[m],m++;
b=mnum[m],m++;
while (mnum[m]!= end)
{
if(menunum<500) display1(mnum[m],a,b,0,partition),a++;
else display2(mnum[m],a,b,0,partition),a++;
if (mnum[m]>=500) a++;
m++;
}
m++;
}
//***********************************************************************
//======================================================================
//===================== PAGE 3 =========================================
//=======================================================================
//***********************************************************************
void WhiteNum(Uint16 num,Uint16 white,Uint16 partition)
{
union
{
Uint16 total;
struct
{
Uint16 low:8;
Uint16 high:8;
}e;
}d;
Uint16 i,j;
const Uint16 *mnum;
mnum=WhiteList[num];
white=4*white;
for (i=0;i<mnum[white+2];i++)
{
for(j=0;j<mnum[white+3];j++)
{
d.total=(i+mnum[white])+(mnum[white+1]+j)*41;/*字符在显存中的地址int型*/
if (partition==2) d.total=d.total+0x2a00;
if (partition==3) d.total=d.total+0x5400;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x43;
num = LCD_COM;
num=~num;
LCD_COM = 0x46;
LCD_DAT = d.e.low;
LCD_DAT = d.e.high;
LCD_COM = 0x42;
LCD_DAT = num;
}
}
}
//***********************************************************************
//======================================================================
//===================== PAGE 4 =======================================
//=======================================================================
//***********************************************************************
void Smenu(void)
{
drawarea(1,1,320,240,2);
drawarea(2,2,319,239,2);
drawabscissa(19,1,320,2);
drawabscissa(20,1,320,2);
drawabscissa(219,1,320,2);
drawabscissa(220,1,320,2);
ShowWord(0,2);
/*ShowIcon(0,2);*/
ShowWord(500,2);
}
//===============================================================
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