【我的DIY设计】+基于stm32f3的TFT的汉字显示

1万 · 2013-1-5 23:19

这个是用的一个240*320的彩屏，
采用的是并口数据接入。
下面的是刷屏的程序分别显示三种不同的颜色

下面开始进入整体显示一个感谢21ic 感谢st 的字符

void init_Gpio()//初始化 GPIO口使用的是AE 两个口
{
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOE, ENABLE);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_Init(GPIOE, &GPIO_InitStructure);

  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);


GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 |GPIO_Pin_4 |GPIO_Pin_3 |GPIO_Pin_2 |GPIO_Pin_1 |GPIO_Pin_0;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
  GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

}

#define uint unsigned int
#define uchar unsigned char

采用的宏定义的方法来实现程序函数的
#define LCD_RD0 GPIO_ResetBits(GPIOA,GPIO_Pin_0)
#define LCD_WR0 GPIO_ResetBits(GPIOA,GPIO_Pin_1)
#define LCD_RS0 GPIO_ResetBits(GPIOA,GPIO_Pin_2)
#define LCD_CS0 GPIO_ResetBits(GPIOA,GPIO_Pin_3)
#define LCD_REST0 GPIO_ResetBits(GPIOA,GPIO_Pin_4)

#define LCD_RD1 GPIO_SetBits(GPIOA,GPIO_Pin_0)
#define LCD_WR1 GPIO_SetBits(GPIOA,GPIO_Pin_1)
#define LCD_RS1 GPIO_SetBits(GPIOA,GPIO_Pin_2)
#define LCD_CS1 GPIO_SetBits(GPIOA,GPIO_Pin_3)
#define LCD_REST1 GPIO_SetBits(GPIOA,GPIO_Pin_4)

void delayms(int count)  // /* X1ms */
{
      int i,j;
      for(i=0;i<count;i++)
      for(j=0;j<100;j++);
}

void LCD_Writ_Bus(char VH,char VL) //????????
{
int temp;
temp=0;
GPIO_Write(GPIOE,temp |( VH<<8));
  LCD_WR0;
LCD_WR1;
temp=0;
GPIO_Write(GPIOE,temp |( VL<<8) );
LCD_WR0;
LCD_WR1;
}

void LCD_Write_COM(char VH,char VL)    //????
{
  LCD_RS0;
LCD_Writ_Bus(VH,VL);
}

void LCD_Write_DATA(char VH,char VL) //????
{
  LCD_RS1;
LCD_Writ_Bus(VH,VL);
}
这里是用来设置一个写入方框的
void Address_set(unsigned int x1,unsigned int y1,unsigned int x2,unsigned int y2)
{
LCD_Write_COM(0x00,0x20);LCD_Write_DATA(x1>>8,x1);    //??X????
  LCD_Write_COM(0x00,0x21);LCD_Write_DATA(y1>>8,y1); //??Y????
  LCD_Write_COM(0x00,0x50);LCD_Write_DATA(x1>>8,x1); //??X
LCD_Write_COM(0x00,0x52);LCD_Write_DATA(y1>>8,y1);    //??Y
  LCD_Write_COM(0x00,0x51);LCD_Write_DATA(x2>>8,x2); //??X
LCD_Write_COM(0x00,0x53);LCD_Write_DATA(y2>>8,y2); //??Y
  LCD_Write_COM(0x00,0x22);
}
LCD的初始化移植的函数自己写比较麻烦的
void LCD_Init(void)
{
  LCD_REST1;
  delayms(5);
LCD_REST0;
delayms(5);
LCD_REST1;
LCD_CS1;
LCD_RD1;
LCD_WR1;
delayms(5);

LCD_CS0;  //??????
//************* Start Initial Sequence **********//
LCD_Write_COM(0x00,0xE5); LCD_Write_DATA(0x78,0xF0); // set SRAM internal timing
LCD_Write_COM(0x00,0x01); LCD_Write_DATA(0x01,0x00); // set SS and SM bit
LCD_Write_COM(0x00,0x02); LCD_Write_DATA(0x07,0x00); // set 1 line inversion
LCD_Write_COM(0x00,0x03); LCD_Write_DATA(0x10,0x30); // set GRAM write direction and BGR=1.
LCD_Write_COM(0x00,0x04); LCD_Write_DATA(0x00,0x00); // Resize register
LCD_Write_COM(0x00,0x08); LCD_Write_DATA(0x02,0x07); // set the back porch and front porch
LCD_Write_COM(0x00,0x09); LCD_Write_DATA(0x00,0x00); // set non-display area refresh cycle ISC[3:0]
LCD_Write_COM(0x00,0x0A); LCD_Write_DATA(0x00,0x00); // FMARK function
LCD_Write_COM(0x00,0x0C); LCD_Write_DATA(0x00,0x00); // RGB interface setting
LCD_Write_COM(0x00,0x0D); LCD_Write_DATA(0x00,0x00); // Frame marker Position
LCD_Write_COM(0x00,0x0F); LCD_Write_DATA(0x00,0x00); // RGB interface polarity
//*************Power On sequence ****************//
LCD_Write_COM(0x00,0x10); LCD_Write_DATA(0x00,0x00); // SAP, BT[3:0], AP, DSTB, SLP, STB
LCD_Write_COM(0x00,0x11); LCD_Write_DATA(0x00,0x07); // DC1[2:0], DC0[2:0], VC[2:0]
LCD_Write_COM(0x00,0x12); LCD_Write_DATA(0x00,0x00); // VREG1OUT voltage
LCD_Write_COM(0x00,0x13); LCD_Write_DATA(0x00,0x00); // VDV[4:0] for VCOM amplitude
LCD_Write_COM(0x00,0x07); LCD_Write_DATA(0x00,0x01);
delayms(50); // Dis-charge capacitor power voltage
LCD_Write_COM(0x00,0x10); LCD_Write_DATA(0x10,0x90); // 1490//SAP, BT[3:0], AP, DSTB, SLP, STB
LCD_Write_COM(0x00,0x11); LCD_Write_DATA(0x02,0x27); // DC1[2:0], DC0[2:0], VC[2:0]
delayms(50); // Delay 50ms
LCD_Write_COM(0x00,0x12); LCD_Write_DATA(0x00,0x1F); //001C// Internal reference voltage= Vci;
delayms(50); // Delay 50ms
LCD_Write_COM(0x00,0x13); LCD_Write_DATA(0x15,0x00); //0x1000//1400 Set VDV[4:0] for VCOM amplitude  1A00
LCD_Write_COM(0x00,0x29); LCD_Write_DATA(0x00,0x27); //0x0012 //001a  Set VCM[5:0] for VCOMH  //0x0025  0034
LCD_Write_COM(0x00,0x2B); LCD_Write_DATA(0x00,0x0D); // Set Frame Rate 000C
delayms(50); // Delay 50ms
LCD_Write_COM(0x00,0x20); LCD_Write_DATA(0x00,0x00); // GRAM horizontal Address
LCD_Write_COM(0x00,0x21); LCD_Write_DATA(0x00,0x00); // GRAM Vertical Address
// ----------- Adjust the Gamma Curve ----------//
LCD_Write_COM(0x00,0x30); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x31); LCD_Write_DATA(0x07,0x07);
LCD_Write_COM(0x00,0x32); LCD_Write_DATA(0x03,0x07);
LCD_Write_COM(0x00,0x35); LCD_Write_DATA(0x02,0x00);
LCD_Write_COM(0x00,0x36); LCD_Write_DATA(0x00,0x08);//0207
LCD_Write_COM(0x00,0x37); LCD_Write_DATA(0x00,0x04);//0306
LCD_Write_COM(0x00,0x38); LCD_Write_DATA(0x00,0x00);//0102
LCD_Write_COM(0x00,0x39); LCD_Write_DATA(0x07,0x07);//0707
LCD_Write_COM(0x00,0x3C); LCD_Write_DATA(0x00,0x02);//0702
LCD_Write_COM(0x00,0x3D); LCD_Write_DATA(0x1D,0x04);//1604

//------------------ Set GRAM area ---------------//
LCD_Write_COM(0x00,0x50); LCD_Write_DATA(0x00,0x00); // Horizontal GRAM Start Address
LCD_Write_COM(0x00,0x51); LCD_Write_DATA(0x00,0xEF); // Horizontal GRAM End Address
LCD_Write_COM(0x00,0x52); LCD_Write_DATA(0x00,0x00); // Vertical GRAM Start Address
LCD_Write_COM(0x00,0x53); LCD_Write_DATA(0x01,0x3F); // Vertical GRAM Start Address
LCD_Write_COM(0x00,0x60); LCD_Write_DATA(0xA7,0x00); // Gate Scan Line
LCD_Write_COM(0x00,0x61); LCD_Write_DATA(0x00,0x01); // NDL,VLE, REV
LCD_Write_COM(0x00,0x6A); LCD_Write_DATA(0x00,0x00); // set scrolling line
//-------------- Partial Display Control ---------//
LCD_Write_COM(0x00,0x80); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x81); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x82); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x83); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x84); LCD_Write_DATA(0x00,0x00);
LCD_Write_COM(0x00,0x85); LCD_Write_DATA(0x00,0x00);
//-------------- Panel Control -------------------//
LCD_Write_COM(0x00,0x90); LCD_Write_DATA(0x00,0x10);
LCD_Write_COM(0x00,0x92); LCD_Write_DATA(0x06,0x00);
LCD_Write_COM(0x00,0x07); LCD_Write_DATA(0x01,0x33); // 262K color and display ON
LCD_CS1;  //??????

}
刷屏使用的函数
void Pant(char VH,char VL)
{
int i,j;
LCD_CS0;  //??????
Address_set(0,0,240,320);
for(i=0;i<320;i++)
   {
   for (j=0;j<240;j++)
         {
         LCD_Write_DATA(VH,VL);
      }
   }
   LCD_CS1;  //??????
}
void printf_char(uchar x, uint y,uchar c, uint color,uint b_color)
{
uchar  s_x ,s_y, temp ;
   uint j;
   c -= 32;
   for( s_y=0 ; s_y < 16 ; s_y++ )
{
      if(s_y+y<320)
   {
         j=c;
         j=j*16+s_y;
         temp=font16x8[j];
         for( s_x=0 ; s_x<8 ; s_x++ )
      {
            if(x+s_x<240)
            {
                  if((temp&(0x80>>(s_x))) == (0x80>>(s_x))  )
               {
                        dot(x+s_x, y+s_y,color) ;
               }
                  else
               {
                     dot(x+s_x, y+s_y,b_color) ;
               }
            }
         }
   }
}
}
void printf_string(uchar y, uint x,char  *s, uint color,uint b_color)
{
for(;*s!='\0';s++)
{
      printf_char(x, y,*s, color,b_color);
      x=x+8;
}

}
  用来写汉字的不过需要自己建立汉字库的因为有限所以汉字数组略去

void hanzi32_32(uint y,uint x,uchar *value,uint dcolor,uint bgcolor)
{
uint i,j;
  Address_set(x,y,x+31,y+31); //????
for(j=0;j<128;j++)
{
      for(i=0;i<8;i++)
      {
         if((*value&(1<<i))!=0)
         {
            LCD_Write_DATA(dcolor>>8,dcolor); //?????
         }
         else
         {
            LCD_Write_DATA(bgcolor>>8,bgcolor); //?????
         }
      }
      value++;
   }
}

void zf32_32(uint y,uint x,uchar *value,uint dcolor,uint bgcolor)
{
uint i,j;
  Address_set(x,y,x+15,y+31); //????
for(j=0;j<64;j++)
{
      for(i=0;i<8;i++)
      {
         if((*value&(1<<i))!=0)
         {
            LCD_Write_DATA(dcolor>>8,dcolor); //?????
         }
         else
         {
            LCD_Write_DATA(bgcolor>>8,bgcolor); //?????
         }
      }
      value++;
   }
}
这是主函数了
int main()
{

init_Gpio();
LCD_Init();       //TFT???
   Pant(0xff,0xff);    //TFT??
LCD_CS0;

hanzi32_32(40,10,gan,0x00,0xffff);
hanzi32_32(40,50,xie,0x00,0xffff);
zf32_32(40,90,m1,0x00,0xffff);
zf32_32(40,110,m2,0x00,0xffff);
zf32_32(40,130,m3,0x00,0xffff);
zf32_32(40,150,m4,0x00,0xffff);

hanzi32_32(80,10,gan,0x00,0xffff);
hanzi32_32(80,50,xie,0x00,0xffff);
zf32_32(80,90,m5,0x00,0xffff);
zf32_32(80,110,m6,0x00,0xffff);
printf_string(150,10,"Welcome to our BBS of 21IC",0x00,0xffff);
printf_string(180,30,"Welcome to use STMCU",0x00,0xffff);
while(1);
}