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📄 main.c

📁 DSP应用程序
💻 C
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/******************************************************************************/
/*main.c                                                   		              */
/*                                                                            */
/* This is proprietary information, not to be published -- DIGIPRO DATA   	  */
/* Copyright (C) 2002, DigiPro Information Co.,Ltd.  All Rights Reserved.     */
/*                                                                            */
/* Author: Wu DingMing & Li Fayue                                             */
/* Date: August 12-28, 2002                                                      */
/******************************************************************************/
#include <stdio.h>
#include "mmdrv.h"
#include "mcbsp.h"
#include "cpu_reg.h"    
#include "lcd_86.h"

/*led_traf state*/
#define BLANK	0x00
#define RED	    0x01
#define GREEN	0x02
#define YELLOW	0x03
/*led_traf bit*/
#define EAST	0x00
#define NORTH   0x01
#define WEST	0x02
#define SOUTH	0x03

ioport unsigned portefff;	
#define 	IO_374	 portefff

//unsigned int exint1_flag= 0xffff; 
void init_exint1_interrupt();
void init_GPIO(void);   
 
unsigned int flag=0 ;
 

void main(void)
{
unsigned int i ;
 
 	SWWSR = 0x7fff;
    SWCR = 0x0001;
    BSCR = 0x8006;	  
    CLKMD = PLL_DIV_INIT;
    waitloop( 0x0400 );
    CLKMD = PLL_LOCK_INIT_X(9);	
    waitloop( 0x0400 );        
	PMST = 0x0168;
	init_exint1_interrupt();
	init_GPIO();   
    init_lcd();
  	LCD_clear(0);
	cur_row=3;        
	cur_col=8;        
    LCD_pr_chars("I/O_INTERRUPT TEST",18);
	cur_row=4;        
	cur_col=1;        
    LCD_pr_chars("=======================",23);

	IO_374=0xffff;		//374 enable
 
    Close_LED_Traf();
	Close_LED_sign();
	Close_LED_Data();
    waitloop( 0x0400 );        
  	while(1)
	{
/*e w=red,n s=green 1 */
		flag=1;
		Disp_LED_Traf(RED,EAST);		
 		Disp_LED_Traf(RED,WEST);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		Disp_LED_Traf(GREEN,NORTH); 
 		Disp_LED_Traf(GREEN,SOUTH);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
    waitloop( 0x4000000L ); 
/*e w=red,n s=green flicker*/
	for(i=0;i<4;i++)
	 {
		flag=2;
		Disp_LED_Traf(RED,EAST);
 		Disp_LED_Traf(RED,WEST);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		Disp_LED_Traf(BLANK,NORTH); 
 		Disp_LED_Traf(BLANK,SOUTH);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
    waitloop( 0x00200000L ); 

		Disp_LED_Traf(RED,EAST);
 		Disp_LED_Traf(RED,WEST);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		Disp_LED_Traf(GREEN,NORTH); 
 		Disp_LED_Traf(GREEN,SOUTH);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
    waitloop( 0x00200000L ); 
     }

/*e w=red,n s=yellow 2 */
		flag=3;
		Disp_LED_Traf(RED,EAST);
 		Disp_LED_Traf(RED,WEST);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		Disp_LED_Traf(YELLOW,NORTH); 
 		Disp_LED_Traf(YELLOW,SOUTH);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
    waitloop( 0x00800000L ); 

/*e w=red,n s=red */
		flag=4;
		Disp_LED_Traf(RED,EAST);
 		Disp_LED_Traf(RED,WEST);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		Disp_LED_Traf(RED,NORTH); 
 		Disp_LED_Traf(RED,SOUTH);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
    waitloop( 0x00800000L ); 

/*e w=green, n s=red 3 */
		flag=5;
    	Disp_LED_Traf(GREEN,EAST);
 		Disp_LED_Traf(GREEN,WEST);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		Disp_LED_Traf(RED,NORTH); 
 		Disp_LED_Traf(RED,SOUTH);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");       
    waitloop( 0x4000000L ); 
/* */		 
/*n s=red,e w=green flicker*/
	for(i=0;i<4;i++)
	 {
		flag=6;
		Disp_LED_Traf(BLANK,EAST);
 		Disp_LED_Traf(BLANK,WEST);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		Disp_LED_Traf(RED,NORTH); 
 		Disp_LED_Traf(RED,SOUTH);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
    waitloop( 0x00200000L ); 

		Disp_LED_Traf(GREEN,EAST);
 		Disp_LED_Traf(GREEN,WEST);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		Disp_LED_Traf(RED,NORTH); 
 		Disp_LED_Traf(RED,SOUTH);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
    waitloop( 0x00200000L ); 
     }

/*n s=red,e w=yellow 4*/
		flag=7;
		Disp_LED_Traf(YELLOW,EAST);
 		Disp_LED_Traf(YELLOW,WEST);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		Disp_LED_Traf(RED,NORTH); 
 		Disp_LED_Traf(RED,SOUTH);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
    waitloop( 0x00800000L ); 

/*n s=red,e w=red */
		Disp_LED_Traf(RED,EAST);
 		Disp_LED_Traf(RED,WEST);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		Disp_LED_Traf(RED,NORTH); 
 		Disp_LED_Traf(RED,SOUTH);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
    waitloop( 0x00800000L ); 

    }  
}
 
interrupt void EXINT1_isr()
{
	//exint1_flag=~exint1_flag;
  	IMR =0x0000;		//close EXINT1=IMR.1		
	cur_row=5;        
	cur_col=15;        
    LCD_pr_chars("car is arriving...",18);
/*e w=red,n s=red */
		Disp_LED_Traf(RED,EAST);		
 		Disp_LED_Traf(RED,WEST);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		Disp_LED_Traf(RED,NORTH); 
 		Disp_LED_Traf(RED,SOUTH);
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
 
   		while(!(GPIOSR&0x01))
		 {
				asm("\tnop");
				asm("\tnop");
		 }

 		while((GPIOSR&0x01))
		 {
				asm("\tnop");
				asm("\tnop");
 		 }	
        while(!(GPIOSR&0x01))
         {
		   	    asm("\tnop");
				asm("\tnop");
         }
       
	    switch(flag)
  	     {
           default: 
    	    break;
           case 1:
			Disp_LED_Traf(RED,EAST);		
	 		Disp_LED_Traf(RED,WEST);
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			Disp_LED_Traf(GREEN,NORTH); 
			Disp_LED_Traf(GREEN,SOUTH);
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
      		break;
           case 3:
			Disp_LED_Traf(RED,EAST);
 			Disp_LED_Traf(RED,WEST);
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			Disp_LED_Traf(YELLOW,NORTH); 
 			Disp_LED_Traf(YELLOW,SOUTH);
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			break;
           case 5:
	    	Disp_LED_Traf(GREEN,EAST);
 			Disp_LED_Traf(GREEN,WEST);
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			Disp_LED_Traf(RED,NORTH); 
 			Disp_LED_Traf(RED,SOUTH);
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");       
			break;
		   case 7:	 
			Disp_LED_Traf(YELLOW,EAST);
 			Disp_LED_Traf(YELLOW,WEST);
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			Disp_LED_Traf(RED,NORTH); 
 			Disp_LED_Traf(RED,SOUTH);
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
			asm("\tnop");
            break;
	     }

	cur_row=5;        
	cur_col=15;        
    LCD_pr_chars("car has left......",18);	
	IFR =0xffff;
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
		asm("\tnop");
 	IMR =0x0002;		//turn on EXINT1=IMR.1		


}

void init_exint1_interrupt()   
{
	IFR =0xffff;
 	IMR =0x0002;		//EXINT1=IMR.1		
	asm("\trsbx\tintm ");

}    

void init_GPIO(void)   
{
	GPIOCR =0xfffe;   //EXINT1=GPIO.0=input=0,nand_cs=GPIO.6=output=1
 	GPIOSR =0x0040;	  //GPIO.6=output=1			
}

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