keyboard4.c - develop - AVLGU/STM32F072_Programming

keyboard4.c
186 строк4 KB
AVLGU
working
26 ноя 2025, 12:40
26 ноя 2025, 12:40f30743e
#include "keyboard4.h"

#define BOUNCE_TIME 5

static void CheckButtons12 (void);
static void CheckButtons15 (void);


void InitKeyboard (void)
{
	RCC->AHBENR |= RCC_AHBENR_GPIOAEN;
	RCC->AHBENR |= RCC_AHBENR_GPIOCEN;

	//PA4, PA5 - PD INPUT
	GPIOA->MODER &= ~(GPIO_MODER_MODER4 | GPIO_MODER_MODER5); // reset on leg 4,5
	GPIOA->PUPDR &= ~(GPIO_PUPDR_PUPDR4 | GPIO_PUPDR_PUPDR5); // reset PUPDR on leg 0
	GPIOA->PUPDR |= (GPIO_PUPDR_PUPDR4_1 | GPIO_PUPDR_PUPDR5_1); //  PDR on leg 0

	// PC12, PA15 - OUTPUT
	GPIOC->MODER &= ~(GPIO_MODER_MODER12); // reset on legs 12,15
	GPIOC->MODER |= (GPIO_MODER_MODER12_0); // 1 on 0st bit on legs 12,15
	GPIOA->MODER &= ~(GPIO_MODER_MODER15); // reset on legs 12,15
	GPIOA->MODER |= (GPIO_MODER_MODER15_0); // 1 on 0st bit on legs 12,15
	
}

/*static volatile uint8_t led0=0;
static volatile uint8_t led1=0;
static volatile uint8_t led2=0;
static volatile uint8_t led3=0;*/

static volatile uint8_t bounce_counter[4] = {0};
static volatile uint8_t led_state[4] = {0,0,0,0};
static volatile uint8_t button_state[4] = {0};	
//volatile uint8_t button_steady_state[4] = {0};	
 
//static volatile uint8_t button_time[4] = {0};	


static volatile uint8_t key_num=0;
void Debouncing (void)
{
	for (key_num = 0; key_num < 4; key_num++)
	{
		if (button_state[key_num]/*&&(bounce_counter[key_num]<=BOUNCE_TIME)*/)
		{
			bounce_counter[key_num]++;
		}
		else bounce_counter[key_num]=0;
		
		
		//prev_button_state[key_num] = button_state[key_num];
		
		if (bounce_counter[key_num] == BOUNCE_TIME)
		{
			button_steady_state[key_num] = 1;//!button_steady_state[key_num];	

			led_state[key_num] = !led_state[key_num];
		}
		else
		{			
			button_steady_state[key_num] = 0;
			//bounce_counter[key_num]=0;
		}
	}
}

void CheckButtons(void)
{
	CheckButtons12();
	//__NOP();
	__NOP();
	
	CheckButtons15();
}

void CheckButtons12 (void)
{
	GPIOC->BSRR = GPIO_BSRR_BS_12;
	button_state[0] = (GPIOA->IDR)&GPIO_IDR_5;
	button_state[2] = (GPIOA->IDR)&GPIO_IDR_4;
	GPIOC->BSRR = GPIO_BSRR_BR_12;
}

void CheckButtons15 (void)
{
	GPIOA->BSRR = GPIO_BSRR_BS_15;
	button_state[1] = (GPIOA->IDR)&GPIO_IDR_4;
	button_state[3] = (GPIOA->IDR)&GPIO_IDR_5;
	GPIOA->BSRR = GPIO_BSRR_BR_15;
}

void LightLeds (void)
{
	/*
	for (led_num = 0; led_num < 4; led_num++)
	{
		if (button_steady_state[led_num])
		{
			led_state[led_num] = !led_state[led_num];
		}
	}*/
	GPIOC->BSRR = led_state[0] ? GPIO_BSRR_BS_8 : GPIO_BSRR_BR_8;
	GPIOC->BSRR = led_state[1] ? GPIO_BSRR_BS_6 : GPIO_BSRR_BR_6;
	GPIOC->BSRR = led_state[2] ? GPIO_BSRR_BS_9 : GPIO_BSRR_BR_9;
	GPIOC->BSRR = led_state[3] ? GPIO_BSRR_BS_7 : GPIO_BSRR_BR_7;
}
	
/*
void OLD__CheckButtons (void)
{
	//GPIOC->ODR &= ~(GPIO_ODR_6 | GPIO_ODR_7 | GPIO_ODR_8 | GPIO_ODR_9);//light off
	
	GPIOC->ODR |= GPIO_ODR_12;
	if ((GPIOA->IDR)&GPIO_IDR_5)// 1 button
	{
		if(led0) led0 =0;
		else led0 =1;
		//counter = 0;
		//GPIOC->ODR |= GPIO_ODR_8; //REWRITE WITH BSRR
	}
	if ((GPIOA->IDR)&GPIO_IDR_4)// 2 button
	{
		if(led2) led2 =0;
		else led2 =1;
		//counter = 2;
		//GPIOC->ODR |= GPIO_ODR_9; 
	}
	GPIOC->ODR &= ~GPIO_ODR_12;

	// add SLEEP
	
	GPIOA->ODR |= GPIO_ODR_15;
	if ((GPIOA->IDR)&GPIO_IDR_4)// 3 button
	{
		if(led1) led1 =0;
		else led1 =1;
		//counter = 1;
		//GPIOC->ODR |= GPIO_ODR_6; 
	}
	if ((GPIOA->IDR)&GPIO_IDR_5)// 4 button
	{
		if(led3) led3 =0;
		else led3 =1;
		//counter = 3;
		//GPIOC->ODR |= GPIO_ODR_7; 
	}
	GPIOA->ODR &= ~GPIO_ODR_15;
}

void  OLD__SpinLights (void)
{
	if (led1) GPIOC->BSRR = GPIO_BSRR_BS_6;
	else GPIOC->BSRR = GPIO_BSRR_BR_6;
	
	if (led2) GPIOC->BSRR = GPIO_BSRR_BS_9;
	else GPIOC->BSRR = GPIO_BSRR_BR_9;
	
	if (led3) GPIOC->BSRR = GPIO_BSRR_BS_7;
	else GPIOC->BSRR = GPIO_BSRR_BR_7;
	
	if (led0) GPIOC->BSRR = GPIO_BSRR_BS_8;
	else GPIOC->BSRR = GPIO_BSRR_BR_8;
	
	// 
	if (counter==1)
	{
		GPIOC->BSRR = GPIO_BSRR_BS_6;
		//GPIOC->ODR |= GPIO_ODR_6; //LIGHT ON LEG 6 red -1
	}
	else if(counter==2)
	{
		GPIOC->BSRR = GPIO_BSRR_BS_9;
		//GPIOC->ODR |= GPIO_ODR_9; //LIGHT ON LEG 9 green - 2
	}
	else if(counter==3)
	{
		GPIOC->BSRR = GPIO_BSRR_BS_7;
		//GPIOC->ODR |= GPIO_ODR_7; //LIGHT ON LEG 7 blue -3
	}
	else if(counter==0)
	{
		GPIOC->BSRR = GPIO_BSRR_BS_8;
		//GPIOC->ODR |= GPIO_ODR_8; //LIGHT ON LEG 8 orange  -4
	}//
}*/