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:
	  1. LED group1 does pattern show
	  2. There are four patterns, which pattern in operation is controlled by SW4 and SW5
	  3. The left three LEDs of LED group2 blinks and the others light consistently
	  4. Segment plus dot of 4x7-segment displays lights in sequence
*/
 

#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);
   }
}