TFT畫線程序

所以從一定意義上來講，玩轉TFT的難度要比你玩轉四位數碼管的難度小！！確實如此！其中的樂趣只有自己去做才能體會！

#include
#defineuint unsigned int
#define uchar unsigned char
#defineTYPE_LCD_DATA1
#defineTYPE_LCD_COMMAND0
#defineLCD_SIZE_X128
#defineLCD_SIZE_Y160
#defineDATAP0

sbit LCD_RST= P2^7;//RST 引腳定義
sbit LCD_RD= P3^2;//RD引腳定義
sbit LCD_WR= P3^3;//WR引腳定義
sbit LCD_RS= P2^5;//RS引腳定義
sbit LCD_CS= P2^6;//CS引腳定義

//想玩轉任何一種外圍設備都必須首先了解他的引腳的作用，才能隨心所欲的移植代碼，按自己的要求去操作！！

//以下函數大多部分都是TFT的驅動函數，都有自己的功能注解，了解功能后就可使用！！
uint colors[]=
{
0xf800,0x07e0,0x001f,0xffe0,0x0000,0x07ff,0xf81f,0xffff
};

void delay_ms(uint ms)
{
unsigned char k;

while (ms--)
{
for (k = 0; k < 228; k++)
;
}
}

void LCD_Write(uchar type, uint value)
{
LCD_CS = 0;
LCD_RS = type;// 0: command1: data

LCD_WR= 0;
DATA = (uchar)value;;
LCD_WR = 1;
LCD_CS = 1;
}

void LCD_Wirte_Data16(uint value)// color data
{
LCD_CS = 0;
LCD_RS = 1;
LCD_WR= 0;
DATA = (uchar)value;
LCD_WR= 1;
LCD_WR= 0;
DATA = (uchar)(value>>8);
LCD_WR = 1;
LCD_CS = 1;
}

void Reg_Write(uint reg,uint value)
{
LCD_Write(TYPE_LCD_COMMAND,reg);
LCD_Write(TYPE_LCD_DATA,value);
}

void LCD_SetRamAddr(uint xStart, uint xEnd, uint yStart, uint yEnd)
{
Reg_Write(0x09, xStart);
Reg_Write(0x10, yStart);
Reg_Write(0x11, xEnd);
Reg_Write(0x12, yEnd);
Reg_Write(0x18, xStart);
Reg_Write(0x19, yStart);
LCD_Write(TYPE_LCD_COMMAND,0x22);// 0x22
}

void LCD_init(void)
{
uint num;
Reg_Write(0x0001,0x0002); //MODE_SEL1
Reg_Write(0x0002,0x0012);//MODE_SEL2
Reg_Write(0x0003,0x0000);//MODE_SEL3
Reg_Write(0x0004,0x0010);//MODE_SEL3
LCD_SetRamAddr(0,127, 0,159);
for(num=20480;num>0;num--)
LCD_Wirte_Data16(0xffff);

Reg_Write(0x0005,0x0008);//VCO_MODE
Reg_Write(0x0007,0x007f);//VCOMHT_CTRL
Reg_Write(0x0008,0x0017);//VCOMLT_CTRL
Reg_Write(0x0009,0x0000);//write SRAM window start X point
Reg_Write(0x0010,0x0000);//write SRAM window start y point
Reg_Write(0x0011,0x0083);//write SRAM window end x point
Reg_Write(0x0012,0x009f);//write SRAM window end y point
Reg_Write(0x0017,0x0000);//SRAM contrl
Reg_Write(0x0018,0x0000);//SRAM x position
Reg_Write(0x0019,0x0000);//SRAM y position
Reg_Write(0x0006,0x00c5);//DAC_OP_CTRL2
delay_ms(10); //延時

}

voidLCD_clear(uchar n)
{
uint num;

LCD_SetRamAddr(0,127, 0,159);

for(num=20480;num>0;num--)//160*128=20480
{
LCD_Wirte_Data16(colors[n]);
}
}
//===============================================================
//設定當前顯示坐標
//入口參數: x,y為當前顯示坐標。
//出口參數: 無
//說明：本函數實際上是LCD_setwindow函數的一個特例，顯示窗口為最小，僅是一個像素點。
void LCD_setxy(unsigned char x,unsigned int y)
{
LCD_SetRamAddr(x,y,x,y);
}

void GUI_Point(uchar x, uint y, uint n)
{
LCD_setxy(x,y);
LCD_Wirte_Data16(colors[n]);
}
void main()
{
uint num;
P2 = 0xff;
P0 = 0xff;
LCD_init();
while(1)
{
LCD_SetRamAddr(50,100, 50,50);
for(num=2500;num>0;num--)//160*128=20480
{
LCD_Wirte_Data16(colors[2]);//比如此函數只需知道是用來設置點的顏色即可，以及其參數是colors[]
}
}
}