求教怎样在1.8寸tftlcd上显示变量的数值 -

标题: 求教怎样在1.8寸tftlcd上显示变量的数值 [打印本页]

作者: 爱如少年 时间: 2020-2-25 21:54
标题: 求教怎样在1.8寸tftlcd上显示变量的数值
官方提供的数据

以下为guan'fang
u16 LCD_BGR2RGB(u16 c)
{
  u16  r,g,b,rgb;
  b=(c>>0)&0x1f;
  g=(c>>5)&0x3f;
  r=(c>>11)&0x1f;
  rgb=(b<<11)+(g<<5)+(r<<0);
  return(rgb);

}

void Gui_Circle(u16 X,u16 Y,u16 R,u16 fc)
{//BresenhamËã·¨
unsigned short  a,b;
int c;
a=0;
b=R;
c=3-2*R;
while (a<b)
{
      Gui_DrawPoint(X+a,Y+b,fc);    //       7
      Gui_DrawPoint(X-a,Y+b,fc);    //       6
      Gui_DrawPoint(X+a,Y-b,fc);    //       2
      Gui_DrawPoint(X-a,Y-b,fc);    //       3
      Gui_DrawPoint(X+b,Y+a,fc);    //       8
      Gui_DrawPoint(X-b,Y+a,fc);    //       5
      Gui_DrawPoint(X+b,Y-a,fc);    //       1
      Gui_DrawPoint(X-b,Y-a,fc);    //       4

      if(c<0) c=c+4*a+6;
      else
      {
         c=c+4*(a-b)+10;
         b-=1;
      }
   a+=1;
}
if (a==b)
{
      Gui_DrawPoint(X+a,Y+b,fc);
      Gui_DrawPoint(X+a,Y+b,fc);
      Gui_DrawPoint(X+a,Y-b,fc);
      Gui_DrawPoint(X-a,Y-b,fc);
      Gui_DrawPoint(X+b,Y+a,fc);
      Gui_DrawPoint(X-b,Y+a,fc);
      Gui_DrawPoint(X+b,Y-a,fc);
      Gui_DrawPoint(X-b,Y-a,fc);
}

}
//»-Ïßoˉêy￡¬ê1óÃBresenham »-ÏßËã·¨
void Gui_DrawLine(u16 x0, u16 y0,u16 x1, u16 y1,u16 Color)
{
int dx,          // difference in x's
dy,          // difference in y's
dx2,          // dx,dy * 2
dy2,
x_inc,       // amount in pixel space to move during drawing
y_inc,       // amount in pixel space to move during drawing
error,       // the discriminant i.e. error i.e. decision variable
index;       // used for looping

Lcd_SetXY(x0,y0);
dx = x1-x0;//¼ÆËãx¾ààë
dy = y1-y0;//¼ÆËãy¾ààë

if (dx>=0)
{
x_inc = 1;
}
else
{
x_inc = -1;
dx = -dx;
}

if (dy>=0)
{
y_inc = 1;
}
else
{
y_inc = -1;
dy = -dy;
}

dx2 = dx << 1;
dy2 = dy << 1;

if (dx > dy)//x¾ààë′óóúy¾ààë￡¬ÄÇÃ′Ã¿¸öxÖáéÏÖ»óDò»¸öμã￡¬Ã¿¸öyÖáéÏóDèô¸é¸öμã
{//ÇòÏßμÄμãêyμèóúx¾ààë￡¬òÔxÖáμYÔö»-μã
// initialize error term
error = dy2 - dx;

// draw the line
for (index=0; index <= dx; index++)//òa»-μÄμãêy2»»á3¬1yx¾ààë
{
//»-μã
Gui_DrawPoint(x0,y0,Color);

// test if error has overflowed
if (error >= 0) //êÇ·ñDèòaÔö¼óy×ø±êÖμ
{
error-=dx2;

// move to next line
y0+=y_inc;//Ôö¼óy×ø±êÖμ
} // end if error overflowed

// adjust the error term
error+=dy2;

// move to the next pixel
x0+=x_inc;//x×ø±êÖμÃ¿′Î»-μãoó¶¼μYÔö1
} // end for
} // end if |slope| <= 1
else//yÖá′óóúxÖá￡¬ÔòÃ¿¸öyÖáéÏÖ»óDò»¸öμã￡¬xÖáèô¸é¸öμã
{//òÔyÖáÎaμYÔö»-μã
// initialize error term
error = dx2 - dy;

// draw the line
for (index=0; index <= dy; index++)
{
// set the pixel
Gui_DrawPoint(x0,y0,Color);

// test if error overflowed
if (error >= 0)
{
error-=dy2;

// move to next line
x0+=x_inc;
} // end if error overflowed

// adjust the error term
error+=dx2;

// move to the next pixel
y0+=y_inc;
} // end for
} // end else |slope| > 1
}

void Gui_box(u16 x, u16 y, u16 w, u16 h,u16 bc)
{
Gui_DrawLine(x,y,x+w,y,0xEF7D);
Gui_DrawLine(x+w-1,y+1,x+w-1,y+1+h,0x2965);
Gui_DrawLine(x,y+h,x+w,y+h,0x2965);
Gui_DrawLine(x,y,x,y+h,0xEF7D);
Gui_DrawLine(x+1,y+1,x+1+w-2,y+1+h-2,bc);
}
void Gui_box2(u16 x,u16 y,u16 w,u16 h, u8 mode)
{
if (mode==0) {
Gui_DrawLine(x,y,x+w,y,0xEF7D);
Gui_DrawLine(x+w-1,y+1,x+w-1,y+1+h,0x2965);
Gui_DrawLine(x,y+h,x+w,y+h,0x2965);
Gui_DrawLine(x,y,x,y+h,0xEF7D);
}
if (mode==1) {
Gui_DrawLine(x,y,x+w,y,0x2965);
Gui_DrawLine(x+w-1,y+1,x+w-1,y+1+h,0xEF7D);
Gui_DrawLine(x,y+h,x+w,y+h,0xEF7D);
Gui_DrawLine(x,y,x,y+h,0x2965);
}
if (mode==2) {
Gui_DrawLine(x,y,x+w,y,0xffff);
Gui_DrawLine(x+w-1,y+1,x+w-1,y+1+h,0xffff);
Gui_DrawLine(x,y+h,x+w,y+h,0xffff);
Gui_DrawLine(x,y,x,y+h,0xffff);
}
}

/**************************************************************************************
1|ÄüÃèêö: ÔúÆáÄ»ÏÔê¾ò»í1ÆeμÄ°′Å￥¿ò
êä èë: u16 x1,y1,x2,y2 °′Å￥¿ò×óéÏ½ÇoíóòÏÂ½Ç×ø±ê
êä 3ö: ÎT
**************************************************************************************/
void DisplayButtonDown(u16 x1,u16 y1,u16 x2,u16 y2)
{
Gui_DrawLine(x1,  y1,  x2,y1, GRAY2);  //H
Gui_DrawLine(x1+1,y1+1,x2,y1+1, GRAY1);  //H
Gui_DrawLine(x1,  y1,  x1,y2, GRAY2);  //V
Gui_DrawLine(x1+1,y1+1,x1+1,y2, GRAY1);  //V
Gui_DrawLine(x1,  y2,  x2,y2, WHITE);  //H
Gui_DrawLine(x2,  y1,  x2,y2, WHITE);  //V
}

/**************************************************************************************
1|ÄüÃèêö: ÔúÆáÄ»ÏÔê¾ò»°¼ÏÂμÄ°′Å￥¿ò
êä èë: u16 x1,y1,x2,y2 °′Å￥¿ò×óéÏ½ÇoíóòÏÂ½Ç×ø±ê
êä 3ö: ÎT
**************************************************************************************/
void DisplayButtonUp(u16 x1,u16 y1,u16 x2,u16 y2)
{
Gui_DrawLine(x1,  y1,  x2,y1, WHITE); //H
Gui_DrawLine(x1,  y1,  x1,y2, WHITE); //V

Gui_DrawLine(x1+1,y2-1,x2,y2-1, GRAY1);  //H
Gui_DrawLine(x1,  y2,  x2,y2, GRAY2);  //H
Gui_DrawLine(x2-1,y1+1,x2-1,y2, GRAY1);  //V
Gui_DrawLine(x2  ,y1  ,x2,y2, GRAY2); //V
}

void Gui_DrawFont_GBK16(u16 x, u16 y, u16 fc, u16 bc, u8 *s)
{
unsigned char i,j;
unsigned short k,x0;
x0=x;

while(*s)
{
if((*s) < 128)
{
k=*s;
if (k==13)
{
x=x0;
y+=16;
}
else
{
if (k>32) k-=32; else k=0;

      for(i=0;i<16;i++)
for(j=0;j<8;j++)
{
        if(asc16[k*16+i]&(0x80>>j)) Gui_DrawPoint(x+j,y+i,fc);
else
{
if (fc!=bc) Gui_DrawPoint(x+j,y+i,bc);
}
}
x+=8;
}
s++;
}

else
{

for (k=0;k<hz16_num;k++)
{
   if ((hz16[k].Index[0]==*(s))&&(hz16[k].Index[1]==*(s+1)))
   {
      for(i=0;i<16;i++)
      {
for(j=0;j<8;j++)
{
        if(hz16[k].Msk[i*2]&(0x80>>j)) Gui_DrawPoint(x+j,y+i,fc);
else {
if (fc!=bc) Gui_DrawPoint(x+j,y+i,bc);
}
}
for(j=0;j<8;j++)
{
        if(hz16[k].Msk[i*2+1]&(0x80>>j)) Gui_DrawPoint(x+j+8,y+i,fc);
else
{
if (fc!=bc) Gui_DrawPoint(x+j+8,y+i,bc);
}
}
      }
}
   }
s+=2;x+=16;
}

}
}

作者: man1234567 时间: 2020-2-26 07:56
你贴的程序里用Gui_DrawFont_GBK16()函数。

作者: hantu 时间: 2020-2-26 09:01
void Gui_DrawFont_GBK16(u16 x, u16 y, u16 fc, u16 bc, u8 *s)

这个应该就是显示函数，是在x,y坐标开始，以fc为前景色、bc为背景色，显示字符串s。
你可以根据你的屏幕最长能显示多少字符来设置一个字符串，然后用sprintf生成其内容，并用上面这个函数来显示，可以中英文混合并试验，比如：
u8 str[80];
u16 num=666;
sprintf(str,"这是一个数字：%d",num);
Gui_DrawFont_GBK16(0,0,0x00, 0xff, str);

作者: 探路 时间: 2020-2-26 09:39
建议你参考原子的液晶屏例程，他的库函数有函数接口

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