atmega128a - led machine (+ driver)

전체 8개의 led 有 

sw0 누르면 두개씩 누적되어 켜진다 (ex. 2개, 4개, 6개, 8개) 

sw1 누르면 켜져있는 led 모두 꺼진다

 

1. main.c 

#define F_CPU 16000000UL
#include <avr/io.h>
#include <util/delay.h>
#include "driver/button/button.h"
#include "driver/led/led.h"
#include "driver/ap/ledMachine/ledMachine.h"



int main(void)
{
	ledMachine_init(); 
	
	while (1)
	{
		ledMachine_RUN();
		
		
		
	}
}

 

2. driver 

 1) button 

   - button.h

#ifndef BUTTON_H_
#define BUTTON_H_

#define F_CPU 16000000UL
#include <avr/io.h>
#include <util/delay.h>

typedef struct _button{
	volatile uint8_t *DDR;
	volatile uint8_t *PIN;
	uint8_t pinNum;
	uint8_t prevState;
}button_t;

enum {PUSHED, RELEASED};
enum {ACT_PUSHED, ACT_RELEASED, ACT_NONE};

uint8_t buttonGetState();
void Button_init(button_t *btn, volatile uint8_t *ddr, volatile uint8_t *pin, uint8_t pinNum);


#endif /* BUTTON_H_ */

 

  - button.c

#include "button.h"

void Button_init(button_t *btn, volatile uint8_t *ddr, volatile uint8_t *pin, uint8_t pinNum){
	btn->DDR = ddr;
	btn->PIN = pin;
	btn->pinNum = pinNum;
	btn->prevState = RELEASED;
	*btn->DDR &= ~(1<<btn->pinNum);
}

// PULL - UP type : 눌렸을때 입력되는 비트가 0
uint8_t buttonGetState(button_t *btn){
	static uint8_t prevState = 1;
	uint8_t curState = *btn->PIN & (1<<btn->pinNum);
	
	if ((curState == PUSHED) && (btn->prevState == RELEASED)){
		_delay_ms(10);
		btn->prevState = PUSHED;
		return ACT_PUSHED;
	}
	else if ((curState != PUSHED) && (btn->prevState == PUSHED)){
		_delay_ms(10);
		btn->prevState = RELEASED;
		return ACT_RELEASED;
	}
	return ACT_NONE;
}

 

 2) led 

  - led.h

/*
 * led.h
 *
 * Created: 2024-09-20 오전 11:26:30
 *  Author: kccistc
 */ 


#ifndef LED_H_
#define LED_H_

#define F_CPU 16000000UL
#include <avr/io.h>
#include <util/delay.h>

#define LED_DDR		DDRD	
#define LED_PORT	PORTD
#define LED_PIN		PIND 

typedef struct _led{
	volatile uint8_t *DDR;
	volatile uint8_t *PIN;
	uint8_t pinNum;
}led_t;

void led_init(); 
void led_writeData(uint8_t data);
void led_allOFF();
void led_allON();

 

  - led.c 

#include "led.h"

// led initializing 
void led_init(){
	LED_DDR = 0xff; 
}

// led lighting 
void led_writeData(uint8_t data){
	LED_PORT = data; 
}

void led_allOFF(){
	LED_PORT = 0x00; 
}

void led_allON(){
	LED_PORT = 0xff; 
}