main1.c

adc 3208 上面实现图片旋转的实例

//UART1_REC INT couldn't work when using mouse
//So I use timer1 int for every 8.3ms. During timer int, I check the UART1_REC

typedef unsigned int    dword;
typedef unsigned short  word;
typedef unsigned char   byte;


extern byte *regb;
#define  regw *(word*)&regb
#define  regl *(int *)&regb

//#define SW_KEY	*(volatile unsigned short int*)(0x0120000a) //VG2
#define SW_KEY	*(volatile unsigned short int*)(0x0150000a) //AMA

unsigned int _TIMER_VAR=0;
unsigned char timer_tick=0;

short light_pen_x;
short light_pen_y;

short key_left_press =0;
short key_right_press =0;

unsigned char mouse_databuf[3];
short mouse_rec_number;
unsigned char c0,c1,c2;
int mouse_sn=0;

short x_position =100;
short y_position =100;

#define MOUSE_RATIO 1
char x_count;
char y_count;

short Mouse_change = 0;
short Key_pressed = 0;
short Key_released =0;

void ReceiveCmd(void);

/////////////////////////////////////////
void UartConfig1(void)
{
	regw[0x1020]=0x111;	 // uclk,8bit data
	regw[0x1030]=95; // 1843200/((16*(95+1)) = 1200
}

short RxFul1(void)
{ 

 	if((regw[0x1024]) & 0x0010)
 		 return 1;
  	else
  		 return 0;
}

char Rx1(void)
{
  	return regb[0x102c];
}


void RX1_int_enable(void)
{
  regb[0x0c05]=1; //interrupt vector high 3bit 

  asm("set 12 ; "); //set_vectored 
  asm("set 13 ; "); //int enable
  regl[0x0c08] |= 0x00020000; //release mask
}


#define MOUSE_X_MAX 790  /*610  790*/
#define MOUSE_Y_MAX 505  /*450  505*/


//#pragma interrupt
void TIMER1()
{
	timer_tick++; //global time
	if(timer_tick>=12)
	{ //  8.3ms* 12 = 0.1S
		_TIMER_VAR ++;
		timer_tick=0;
	}
	
	if((0 == mouse_sn )&& RxFul1())
	{
		c0 = (regb[0x102c]) &0x7f; 
		if(c0 & 0x40)
		{
			mouse_sn = 1;
		}
	}

	if((1 == mouse_sn )&& RxFul1())
	{
		c1 = (regb[0x102c]) &0x7f; 
		if(0 == (c1 & 0x40))
		{
			mouse_sn = 2;
		}
		else
		{
			mouse_sn = 1;
			c0 = c1;
		}
	}

	if((2 == mouse_sn )&& RxFul1())
	{
		c2 = (regb[0x102c]) &0x7f;
		if(0 == (c2 & 0x40))
		{
			mouse_sn = 3;
		}
		else
		{
			mouse_sn = 1;
			c0 = c2;
		}
	}
	
	if(3 == mouse_sn)
	{
	//do some process
		key_left_press = c0 &0x20;
        key_right_press = c0 &0x10;
        
        if(key_left_press)
        {
        	Key_pressed = 1;
       // 	if(Key_released)
       // 		Key_released = 0;
        }
        else if(Key_pressed)
        	{
        	  Key_released =1;
            }
            else
            {
              Key_released =0;
            }
        	
        	
        
        x_count = ( (c0 & 0x03)<<6) | ((c1 & 0x3f));
        y_count = ( (c0 & 0x0c)<<4) | ((c2 & 0x3f));
        
		x_position = x_position + ((short) x_count) * MOUSE_RATIO;		
		y_position = y_position + ((short) y_count) * MOUSE_RATIO;
	
		if(x_position<0)
			x_position = 0;
		else if(x_position>(MOUSE_X_MAX))
				x_position = (MOUSE_X_MAX);
		
		if(y_position<0)
			y_position = 0;
		else if(y_position>MOUSE_Y_MAX)
				y_position = MOUSE_Y_MAX;
		
				
		Mouse_change = 1;
    	mouse_sn = 0; //reset
    }
  
    regb[0x0c04]=1;
}

/*
#pragma interrupt
void VSP()
{
	timer_tick++; //global time
	if(timer_tick>=12)
	{ //  8.3ms* 12 = 0.1S
		_TIMER_VAR ++;
		timer_tick=0;
	}
	
	if((0 == mouse_sn )&& RxFul1())
	{
		c0 = (regb[0x102c]) &0x7f; 
		if(c0 & 0x40)
		{
			mouse_sn = 1;
		}
	}

	if((1 == mouse_sn )&& RxFul1())
	{
		c1 = (regb[0x102c]) &0x7f; 
		if(0 == (c1 & 0x40))
		{
			mouse_sn = 2;
		}
		else
		{
			mouse_sn = 1;
			c0 = c1;
		}
	}

	if((2 == mouse_sn )&& RxFul1())
	{
		c2 = (regb[0x102c]) &0x7f;
		if(0 == (c2 & 0x40))
		{
			mouse_sn = 3;
		}
		else
		{
			mouse_sn = 1;
			c0 = c2;
		}
	}
	
	if(3 == mouse_sn)
	{
	//do some process
		key_left_press = c0 &0x20;
        key_right_press = c0 &0x10;
        
        if(key_left_press)
        {
        	Key_pressed = 1;
       // 	if(Key_released)
       // 		Key_released = 0;
        }
        else if(Key_pressed)
        	{
        	  Key_released =1;
            }
            else
            {
              Key_released =0;
            }
        
        x_count = ( (c0 & 0x03)<<6) | ((c1 & 0x3f));
        y_count = ( (c0 & 0x0c)<<4) | ((c2 & 0x3f));
        
		x_position = x_position + ((short) x_count) * MOUSE_RATIO;		
		y_position = y_position + ((short) y_count) * MOUSE_RATIO;
	
		if(x_position<0)
			x_position = 0;
		else if(x_position>(MOUSE_X_MAX))
				x_position = (MOUSE_X_MAX);
		
		if(y_position<0)
			y_position = 0;
		else if(y_position>MOUSE_Y_MAX)
				y_position = MOUSE_Y_MAX;
				
		Mouse_change = 1;
    	mouse_sn = 0; //reset
    }
    regb[0x0c04]=24;
}
*/

void timer_int_enable(void) //only timer test
{
  regb[0x0c05]=1; //interrupt vector high 3bit 
//  regw[0x0c00]= 0x0DFDF; //eirq5 low level trigger//0xffff; //eirq mode = rise edge  
//  regw[0x1400]=0xff03; regw[0x1404]=0x2fde; //timer0 => clk_div=0xff, periodic, run, compare=0x2fde, 1/12s@37.5Mhz
//timer1 => clk_div=0xff, periodic, run, compare=0x57d,for 8.3ms@43M, =0x65B @50M
  regw[0x1408]=0xff03; regw[0x140c]=0x057D; 
  //regw[0x1410]=0xff03; regw[0x1414]=0x0344; //timer2 => clk_div=0xff, periodic, run, compare=0xffff 
  //regw[0x1418]=0xff03; regw[0x141c]=0x0488; //timer3 => clk_div=0xff, periodic, run, compare=0xffff 
  asm("set 12 ; "); //set_vectored 
  asm("set 13 ; "); //int enable
  //asm("clr 14 ; ");
  //regl[0x0c08]=0x01000000; //enable VSP     
  regl[0x0c08]=0x00000002; //       T1 interrupt and EXT_int5
}