main.c

ADS1.2开发环境下的S3C2410的LCD测试程序

/****************************************************************************
【文  件  名  称】Main.c
【功  能  描  述】LCD显示程序
【程  序  版  本】01
【创建及创建日期】jxlin
【修改及修改日期】2008-10-31
****************************************************************************/
//头文件定义

//#include <string.h>
#include "2410addr.h"
//#include "2410lib.h"
//#include "2410lib.c"
#include "def.h"
#include "bmp.h"


//-------------------------------------------

#define LCD_XSIZE     (320) //LCD 水平像素
#define LCD_YSIZE     (240) //LCD 垂直像素
#define SCR_LCD_XSIZE (320) //虚拟水平窗口
#define SCR_LCD_YSIZE (240) //虚拟垂直窗口

//-- LCDCON1 --
#define CLKVAL    (3) // FCLK = 200MHz, HCLK = 100MHz // VCLK = HCLK / [(CLKVAL+1) * 2]  (CLKVAL >= 0)
#define MMODE     (0) // VM信号 0 : Each Frame                                   
#define LCDtype   (3) // 显示模式：TFT类型
#define LCDbbp    (12)// 16BPP
#define LCDon     (1) // diplsy on
#define LCDoff    (0) // 1disply off

//--- LCDCON2 --
#define VBPD      (14)  //垂直同步信号的后肩
#define VFPD      (11)  //垂直同步信号的前肩
#define VSPW      (2)   //垂直同步信号的脉宽
#define LINEVAL     (LCD_YSIZE - 1) //垂直点阵数

//-- LCDCON3 --
#define HBPD      (37)  //水平同步信号的后肩
#define HFPD      (19)  //水平同步信号的前肩
#define HOZVAL    (LCD_XSIZE - 1) //水平点阵数

//-- LCDCON4 --
#define MVAL      (13) //VM信号翻转。只有MMODE = 1时，才有效。 
#define HSPW      (18) //水平同步信号的脉宽

//-- LCDCON5 --
#define BSWP      (0)  // Byte swap control
#define HWSWP     (1)  // Half word swap control

//-- LCDSADDR1 --
//#define LCD_BUFER_BASE    (0x34000000 + 0x00000000)    //帧的缓冲起始地址

#define M5D(n)       ((n) & 0x1fffff)     // get lower 21bits


volatile static unsigned short LCD_BUFER_BASE[SCR_LCD_YSIZE][SCR_LCD_XSIZE];


//--------------------------------------------

#define	time 100   //100ms

void Delay(unsigned int tt);
void LEDtest(void);

void Lcd_Port_Init( void );
void Lcd_Init(void);
static void Lcd_Pwren_Init_On_Off( unsigned char m );
void Lcd_EnvidOnOff(int onoff);
static void Lcd_Lpc3600Enable(void);
static void Lcd_Black_Light_On_Off( unsigned char m );
static void Lcd_PowerEnable(int invpwren, int pwren);
void Display_Pic(const U8* pt);
void Lcd_Power (void);
static void Display_Pixel(U32 x,U32 y,U16 c);
void Display_Color(U16 color);
void Show_frame(void);

 
/***************************************************************************
Function name: Main
Parameter    : void
Description  : 初始化系统，串口，并调用跑马灯显示实验函数
Return	     : void
Argument     : 
Autor & date :
****************************************************************************/
void Main()
{
	
							
 	LEDtest(); 	/*不断的循环，D14将不停的闪烁*/ 		
	
     //   Uart_Printf("Lcd_Driver ");
        Lcd_Port_Init( );
        Lcd_Init( );
        Lcd_Power ();       
               
        while(1)
        {
      
         Display_Pic(gImage_bmp); //显示图片
         Display_Color(0xf800); //显示红色
         Display_Color(0x07e0); //显示绿色
         Display_Color(0x001f); //显示蓝色
         Display_Color(0xffff); //显示白色
         Show_frame(); //显示外框
         
       //  Display_Pixel(20,20,0xffff); //显示单个像素
        }

}




void Delay(unsigned int tt)
{
 unsigned int i=0;
 
 while(tt--)
 for(i=0;i<1600;i++);
}


void LEDtest(void)
{

     rGPFCON=0x5500;		/*设置I/O口GPF7为输出属性*/
	 rGPFUP=0xffff;			/*禁止GPF端口的上拉*/
	 rGPFDAT=0xffff;


     	rGPFDAT = 0xff;
		Delay(time);
		rGPFDAT = 0x00;
		Delay(time);
}


//----------------------------------------------------------------------
//-----------------------------------------------------------------------
void Lcd_Init()
{
 rLCDCON1 = (CLKVAL<<8) | (MMODE<<7) | (LCDtype<<5) | (LCDbbp<<1) | (LCDoff);

 rLCDCON2 = (VBPD<<24) | (LINEVAL<<14) | (VFPD<<6) | (VSPW);

 rLCDCON3 = (HBPD<<19) | (HOZVAL<<8) | (HFPD);

 rLCDCON4 = (MVAL<<8) | (HSPW);

 rLCDCON5 =   (1<<12) // BPP24BL    : MSB valid 
 	        | (1<<11) // RGB565     : 5:6:5 Format                                            
            | (1<<10) // INVVCLK    : VCLK        上升沿有效                
	        | (1<<9)  // INVVLINE   : Vline/HSYNC 极性反转 
            | (1<<8)  // INVVFRAME  : Vframe/VSYNC 极性反转
            | (0<<7)  // INVVD      : VD显 示数据正常                           
            | (0<<6)  // INVVDEN    : VDEN 极性正常                           
            | (1<<3)  // PWREN      : PWREN 信号无效                    
            | (BSWP<<1) //BSWP      : 字节交换
            | (HWSWP);  //HWSWP     : 半字节交换
            
 // rLCDCON5 &=-0x01;          
            

 //实际显示首地址 LCDBASEU = M5D((U32)LCD_BUFER_BASE>>1)
 rLCDSADDR1 = (((U32)LCD_BUFER_BASE>>22)<<21) | M5D((U32)LCD_BUFER_BASE>>1);

 //实际显示结束地址 LCDBASEL = LCDBASEU + （水平虚拟地址 X LCD_YSIZE）
 rLCDSADDR2 = M5D( ((U32)LCD_BUFER_BASE
               +(SCR_LCD_XSIZE*LCD_YSIZE*2))>>1 );

 //虚拟地址设置OFFSIZE = （(SCR_LCD_XSIZE-LCD_XSIZE)/1; PAGEWIDTH = (LCD_XSIZE)
 rLCDSADDR3 = (((SCR_LCD_XSIZE-LCD_XSIZE)/1)<<11)
                |(LCD_XSIZE/1);


 rLCDINTMSK |= (3);    // MASK LCD Sub Interrupt LCD中断源屏蔽
 rLPCSEL &= (~7) ;     // Disable LPC3480
 rTPAL = 0 ;           // Disable Temp Palette
}



//------ LCD 端口初始化 -----
void Lcd_Port_Init( void )
{
    rGPCUP  = 0xffffffff; // Disable Pull-up register
  //  rGPCUP  = 0x00000000;
    
   // rGPCCON = 0xaaaa56a9; //Initialize VD[7:0],LCDVF[2:0],VM,VFRAME,VLINE,VCLK,LEND
   // rGPCCON = 0xaaaa02a9;  //qjy: for avr config lcd!!!    
    rGPCCON = 0xaaaaaaaa;
    
    rGPDUP  = 0xffffffff; // Disable Pull-up register
   // rGPDUP  = 0x00000000;
    
    rGPDCON = 0xaaaaaaaa; //Initialize VD[15:8]
    
   // Lcd_Pwren_Init_On_Off( TRUE ) ;
}


//----------------------------------------------------------------
void Lcd_Power ()
{

/*   Lcd_Black_Light_On_Off( FALSE ); //背光打开 
   Lcd_PowerEnable(0, 0); //使能LCD_PWREN有效
   Lcd_Lpc3600Enable();   //启动LPC3600
   Lcd_Pwren_Init_On_Off( TRUE ) ;//LCD_PWREN电源打开   
   Lcd_EnvidOnOff(TRUE);  //开启视频
  // Lcd_EnvidOnOff(FALSE);  //关闭视频 
*/
  
   Lcd_PowerEnable(0, 1);
    Lcd_EnvidOnOff(1);   //开启视频
}


/*-----------------------------------------------------------------------------
 *  LCD PWREN端口初始化, no use
 */
static void Lcd_Pwren_Init_On_Off( unsigned char m )
{
    rGPGCON = rGPGCON | (3<<8) ;      //LCD POWER CONTROLL
    rGPGUP = rGPGUP & ( ~(1<<4) ) ;  //Enable Pull-up register
    if( m == TRUE )
        rGPGDAT = rGPGDAT | (1<<4) ; //LCD Power ON
    else
        rGPGDAT = rGPGDAT & ( ~(1<<4) ); //LCD power off
}


/*-----------------------------------------------------------------------------
 *  LCD视频和控制信号输出或者停止，1开启视频输出
 */
void Lcd_EnvidOnOff(int onoff)
{
    if(onoff == 1)
        rLCDCON1 |= 1;         // ENVID=ON
    else
        rLCDCON1 &= 0x3fffe;   // ENVID Off
}

/*-----------------------------------------------------------------------------
 *  LPC3600 is a timing control logic unit for LTS350Q1-PD1 or LTS350Q1-PD2
 *  no use
 */
static void Lcd_Lpc3600Enable(void)
{
    rLPCSEL &= ~(7);
    rLPCSEL |= (7);    // 320240, Enable LPC3480
}    

/*-----------------------------------------------------------------------------
 *  320 x 240 16Bpp TFT LCD 背光控制使能
 */
static void Lcd_Black_Light_On_Off( unsigned char m )
{
    rGPBCON = rGPBCON & (~(3<<10)) | (1<<10) ;    //GPB5 is output
    rGPBUP  = rGPBUP & (~(1<<5)) ;                 //GPB5 pull-up is enable
    
    if ( m > 0 ) rGPBDAT |= (1<<5) ;      //GPB5 output HIGH
    else rGPBDAT &= (~(1<<5));            //GPB5 output LOW
}    

/*-----------------------------------------------------------------------------
 *  320 x 240 16Bpp TFT LCD 电源控制引脚使能, no use
 */
static void Lcd_PowerEnable(int invpwren, int pwren)
{
    //GPG4 is setted as LCD_PWREN
    rGPGUP = rGPGUP | (1<<4);         // Pull-up disable
    rGPGCON = rGPGCON | (3<<8);       //GPG4=LCD_PWREN
    
    //Enable LCD POWER ENABLE Function
    rLCDCON5 = rLCDCON5 & (~(1<<3)) | (pwren<<3);      // PWREN
    rLCDCON5 = rLCDCON5 & (~(1<<5)) | (invpwren<<5);   // INVPWREN
}

//------- 显示外框 --------------------------------

 void Show_frame()
 {
  U16 k1,k2,x,y;
 // U16 xx,yy;

   k1=LCD_XSIZE-1;
   k2=LCD_YSIZE-1;
   // addr();

  y=0;x=0;
  for(x=0;x<LCD_XSIZE;x++)
     { LCD_BUFER_BASE[y][x] = 0xffff;}

  
  for(y=1;y<k2;y++)
  {
    x=0;
    LCD_BUFER_BASE[y][x] =0xf800;
    
     
     for(x=1;x<k1;x++)
       {LCD_BUFER_BASE[y][x] =0x0000; }
      
     LCD_BUFER_BASE[y][x] =0x001f;
   }

    for(x=0;x<LCD_XSIZE;x++)
      {LCD_BUFER_BASE[y][x] = 0xffff;}
      
      Delay(5000);

 }
 
//------------ 显示全屏单色----------------------
void Display_Color(U16 color)
{
  U16 x,y;


    for(y=0; y<SCR_LCD_YSIZE; y++)
    {
       for(x=0; x<SCR_LCD_XSIZE; x++)            
      
       LCD_BUFER_BASE[y][x] = color;     
      
    }
    
    Delay(1000);
}

//------- 显示一幅图片度--------
void Display_Pic(const U8* pt)
{
  U16 x,y,c=0;
 // int p = 0; 

     for(y=0; y<SCR_LCD_YSIZE; y++)
    {
       for(x=0; x<SCR_LCD_XSIZE; x++)
       {
         c = *pt++ ;   //高8位数据
         c = (c<<8)&0xff00| (*pt++); //高8位+低8位  
          
         // c = gImage_bmp[p+1] | (gImage_bmp[p]<<8) ; 
         LCD_BUFER_BASE[y][x] = c; //显示内存
         //p = p + 2 ; 
       }
      
    }
    
    Delay(3000);
}



/*

static void Display_Pixel(U32 x,U32 y,U16 c)
{
    if(x<SCR_LCD_XSIZE && y<SCR_LCD_YSIZE)
        LCD_BUFER[(y)][(x)] = c;
}*/