tft_240_320.c

并口触摸屏例程,还是很有用的资料,基于AT91SAM7s256

//====================================================================================
#include <string.h>
#include <at91sam7s256.h>
//#include "HzLib_65k.h"
#include "lpc213x_user.h"

//====================================================================================
void Delay(uint k)
{
    uint i;
    ulong j;
    for(i = k;i > 0;i--)
        for(j = 200000;j > 0;j--);  
}

//====================================================================================
void DelayMs( int k)
{
    uint i;
    ulong j;
    for(i = k;i > 0;i--)
        for(j = 1000;j > 0;j--);    
}

//====================================================================================
void WriData(uint ch)
{
    LCD_DATA(ch);
	LCD_RS_1;
    LCD_WR_1;
    LCD_CS_0;


    LCD_WR_0;

    LCD_CS_1;
}
//====================================================================================
void WriCom(uint ch)
{
    LCD_DATA(ch);
	LCD_RS_0;
    LCD_WR_1;
    LCD_CS_0;

    
    LCD_WR_0;

    LCD_CS_1;
}
//====================================================================================
void write_com(uint address,uint num)
{
    WriCom(address);
    WriData(num);
}
//====================================================================================
void TftInit(void)
{
	LCD_RESET_0;      //低电平复位
    DelayMs(10);
    LCD_RESET_1;
    write_com(0x0000,0x0001);    DelayMs(10);  //打开晶振
    write_com(0x0003,0xA8A4);    DelayMs(10);   //0xA8A4
    write_com(0x000C,0x0000);    DelayMs(10);   
    write_com(0x000D,0x080C);    DelayMs(10);   
    write_com(0x000E,0x2B00);    DelayMs(10);   
    write_com(0x001E,0x00B0);    DelayMs(10);   
    write_com(0x0001,0x2B3F);    DelayMs(10);   //驱动输出控制320*240  0x6B3F(左上角点）  2B3F（右上角0点）
    write_com(0x0002,0x0600);    DelayMs(10);
    write_com(0x0010,0x0000);    DelayMs(10);
    write_com(0x0011,0x6070);    DelayMs(10);        //0x4030  0x6070         //定义数据格式  16位色 
    write_com(0x0005,0x0000);    DelayMs(10);
    write_com(0x0006,0x0000);    DelayMs(10);
    write_com(0x0016,0xEF1C);    DelayMs(10);
    write_com(0x0017,0x0003);    DelayMs(10);
    write_com(0x0007,0x0233);    DelayMs(10);        //0x0233       
    write_com(0x000B,0x0000);    DelayMs(10);
    write_com(0x000F,0x0000);    DelayMs(10);        //扫描开始地址
    write_com(0x0041,0x0000);    DelayMs(10);
    write_com(0x0042,0x0000);    DelayMs(10);
    write_com(0x0048,0x0000);    DelayMs(10);
    write_com(0x0049,0x013F);    DelayMs(10);
    write_com(0x004A,0x0000);    DelayMs(10);
    write_com(0x004B,0x0000);    DelayMs(10);
    write_com(0x0044,0xEF00);    DelayMs(10);
    write_com(0x0045,0x0000);    DelayMs(10);
    write_com(0x0046,0x013F);    DelayMs(10);
    write_com(0x0030,0x0707);    DelayMs(10);
    write_com(0x0031,0x0204);    DelayMs(10);
    write_com(0x0032,0x0204);    DelayMs(10);
    write_com(0x0033,0x0502);    DelayMs(10);
    write_com(0x0034,0x0507);    DelayMs(10);
    write_com(0x0035,0x0204);    DelayMs(10);
    write_com(0x0036,0x0204);    DelayMs(10);
    write_com(0x0037,0x0502);    DelayMs(10);
    write_com(0x003A,0x0302);    DelayMs(10);
    write_com(0x003B,0x0302);    DelayMs(10);
    write_com(0x0023,0x0000);    DelayMs(10);
    write_com(0x0024,0x0000);    DelayMs(10);
    write_com(0x0025,0x8000);    DelayMs(10);
    write_com(0x004f,0);        //行首址0
    write_com(0x004e,0);        //列首址0
}


//====================================================================================
void DispOneColor(int Color)
{
    int i,j;

    write_com(0x004f,0);        //行首址0
    write_com(0x004e,0);        //列首址0
    WriCom(0x22);
    for(j=0;j<320;j++)
        for(i=0;i<240;i++)  
            WriData(Color);
}
//====================================================================================
void DispClear(void)
{
    DispOneColor(BLACK);
}
//==============================================
void Set_ramaddr(uint x,uint y)
{
    write_com(0x004f,y);        //行首址
    write_com(0x004e,x);        //列首址
}
//====================================================================================
void DrawPixel(uint x, uint y, int Color)
{
	Set_ramaddr(x,y);
    WriCom(0x22); 
    WriData(Color);
}
//====================================================================================
void DispPic240_320(const unsigned char *str)
{
    int i;
	Set_ramaddr(0,0);
    WriCom(0x22); 
    for (i = 0; i < 240 * 320; i++)
    {
        WriData(*(unsigned short *)(&str[ 2 * i]));
    }
}
//====================================================================================
void DispSmallPic(uint x, uint y, uint w, uint h, const uchar *str)
{
    uint i,j,temp;
    
	for(j=0;j<h;j++)
    {
        Set_ramaddr(x,y+j);
        WriCom(0x22); 
        for(i=0;i<w;i++)
        {   //send_data(*(unsigned short *)(&str[(j*w+i)*2]));       //高位在前
            temp=str[(j*w+i)*2+1]<<8;     //低位在前
            temp|=str[(j*w+i)*2];
            WriData(temp);
        }
    }
}
//====================================================================================
/*
void DrawSingleHz(uint x, uint y, uchar *pHz, uint LineColor,uint FillColor, uchar Mod)
{
    uchar Ch1,Ch2;
    uchar i, k;
    uint str;
    uint OffSet;

    Ch1 = *pHz;
    Ch2 = *(pHz + 1);
    OffSet = ((Ch1 - 0xb0)*94 + (Ch2 - 0xa1))*32;

       for (i=0;i<16;i++)
        {
            Set_ramaddr(x,y+i);
            WriCom(0x22);
			str = *(HzLib + OffSet + i*2)<<8|*(HzLib + OffSet + i*2+1);
            for (k=0;k<16;k++)
            {
                if ( str & (0x8000>>k) )     //0x8000>>k
                {
                    WriData((uint)(LineColor&0xffff));
                }
                else
                {
                    if (NORMAL == Mod) 
                        WriData((uint)(FillColor&0xffff));
                    else
                    {
                        Set_ramaddr(x+k+1,y+i);
                        WriCom(0x22);  
                    }
                }               
            } 
        }
}
//====================================================================================
void DrawSingleAscii(uint x, uint y, uchar *pAscii, uint LineColor,uint FillColor, uchar Mod)
{
    uchar i, j;
    uchar str;
    uint OffSet;

    OffSet = (*pAscii - 32)*16;

    for (i=0;i<16;i++)
    {
        Set_ramaddr(x,y+i);
        WriCom(0x22);
        str = *(AsciiLib + OffSet + i);  
        for (j=0;j<8;j++)
        {
            if ( str & (0x80>>j) )     //0x80>>j
            {
                WriData((uint)(LineColor&0xffff));
            }
            else
            {
                if (NORMAL == Mod) 
                    WriData((uint)(FillColor&0xffff));
                else
                {
                    Set_ramaddr(x+j+1,y+i);
                    WriCom(0x22);  
                }
            }               
        } 
    }
}
//====================================================================================
void DrawString(uint x, uint y, uchar *pStr, uint LineColor,uint FillColor, uchar Mod)
{

    while(1)
    {
        if (*pStr == 0)	{return;}
        if (*pStr > 0x80)           //汉字
        {
            DrawSingleHz(x, y, pStr, LineColor, FillColor, Mod);
            x += 16;
            pStr += 2;              
        }
        else                        //英文字符
        {
            DrawSingleAscii(x, y, pStr, LineColor, FillColor, Mod);
            x += 8;
            pStr += 1;              
        }
    }   
}
 */