led-16sm._c

大量ATMEGA16实例, 都可以运行,包括驱动LCD1602, 上位机显示等多功能

/*
Title:	LED-16sm.c
Connection:
	  Factory fixed setting:
	  PORTA:
	  		PA0-PA2 LCD control
			PA3-PA7 4x7-segment display control
			Drive LED group2 (the right group of LED)
	  PORTB:
	  		Shared by LCD and 4x7-segment displays
	  		output 8-bit data to LCD or 8-bit data to 4x7-segment displays
	  PORTC:
	        shared by 8-bit dipswitch and 4 x touch switches + 4 buttons
			receive inputs from dipswitch, touch switches and buttons 				
	  PORTD: 
	  		Drive LED group1 (the left group of LED) 
Attention:
	  1. J12 should be capped (connectted)
	  2. J5 is the Jump for LCD back light power 	  

Operation:
	  See the User Mannual, which is included in CD
*/
 

#include <iom16v.h>
#include <macros.h>

unsigned char pattern1[]= {0x01, 0x03, 0x07, 0x0F, 0x1f, 0x3f, 0x7f, 0xff, 0x7f,
						  0x3f, 0x1f, 0x0f, 0x07, 0x03, 0x01};
unsigned char pattern2[]= {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x40,
						  0x20, 0x10, 0x08, 0x04, 0x02, 0x01};
unsigned char pattern3[]= {0x01, 0x80, 0x02, 0x40, 0x04, 0x20, 0x08, 0x10, 0x10,
						  0x08, 0x20, 0x04, 0x40, 0x02, 0x80};
unsigned char pattern4[]= {0x11, 0x22, 0x44, 0x88, 0x44, 0x22, 0x11, 0x22, 0x44,
						  0x88, 0x44, 0x22, 0x11, 0x00, 0x00};
unsigned char pattern5[]= {0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f};						  
const char dig0 = 0x40, dig1 = 0x80, dig2=0x10, dig3=0x08, dot=0x20;
char segconv[]={0x3f, 0x06, 0x5b, 0x4f, 0x66, 0x6d, 0x7d, 0x07, 0x7f, 0x6f};
unsigned char BCD0, BCD1, BCD2, BCD3;
int count;

void port_init(void)
{
 DDRA  = 0xFF;		//set PortA output
 DDRB  = 0xff;		//set PORTB output
 DDRC  = 0x00;		//set PORTC output
 PORTC = 0xff;
 DDRD  = 0xFF;		//set PORTD output
}

void delay(int count)
{
 int i, j;
 for(i=count; i>0; i--)
    for(j=10; j>0; j--)
	   ;
} 

//*****************************************************************

void main(void)
{
 unsigned char outa=0x00, outb=0x00, outc=0x00, outd=0x00;
 int swin, swin2, led_index=0;  
 int j, count=0;
 
 port_init();
 PORTA=0xff;
 while(1)
   {
    WDR();				  //Watchdog reset
	if(++count>30)
	  {
	  	count=0;
		PORTA^=0x07;
		PORTB=pattern5[j++];
    	if(j>=8)
      	j=0;
	  }
	  
	//PORTA=swin;
	swin=PINC&0x30;
	swin=swin>>4;
	swin2=~PINC&0x0f;
	
	if(swin==0)
	  {
	  PORTD=pattern1[led_index];	  
	  }
	else if(swin==0x01)
	  {
	  PORTD=pattern2[led_index];	  
	  }
	else if(swin==0x02)
	  {
	  PORTD=pattern3[led_index];	  
	  }
	else
	  {
	  PORTD=pattern4[led_index];	  
	  }
	  
	led_index++;
	if(led_index>14)
		led_index=0;			
	
    delay(2000+800*swin2);
   }
}