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Enable software-based LED brightness configuration

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This commit is contained in:
Bartłomiej Przemysław Pluta
2020-11-17 17:35:34 +01:00
parent f991e0dc83
commit d01fbdd411
4 changed files with 49 additions and 75 deletions
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13
firmware/keyboard.c
View File

@@ -4,7 +4,7 @@
#include "rtc.h"
#include "led.h"
uint8_t k_inc_hour, k_inc_minute, k_inc_second;
uint8_t k_inc_hour, k_inc_minute, k_inc_second, k_inc_brightness;
void inc_hour(void)
{
@@ -24,10 +24,16 @@ void inc_second(void)
rtc_set_time(SECOND, led_second);
}
void inc_brightness(void)
{
led_brightness <<= 1;
if(!led_brightness) led_brightness = 1;
}
void keyboard_init(void)
{
KEYBOARD_DIR &= ~(KEY_INC_HOUR | KEY_INC_MINUTE | KEY_INC_SECOND);
PORTB |= KEY_INC_HOUR | KEY_INC_MINUTE | KEY_INC_SECOND;
KEYBOARD_DIR &= ~(KEY_INC_HOUR | KEY_INC_MINUTE | KEY_INC_SECOND | KEY_INC_BRIGHTNESS);
PORTB |= KEY_INC_HOUR | KEY_INC_MINUTE | KEY_INC_SECOND | KEY_INC_BRIGHTNESS;
}
void keyboard_handle_input(void)
@@ -35,4 +41,5 @@ void keyboard_handle_input(void)
SuperDebounce(&k_inc_hour, &KEYBOARD_PIN, KEY_INC_HOUR, 20, 500, &inc_hour, &inc_hour);
SuperDebounce(&k_inc_minute, &KEYBOARD_PIN, KEY_INC_MINUTE, 20, 500, &inc_minute, &inc_minute);
SuperDebounce(&k_inc_second, &KEYBOARD_PIN, KEY_INC_SECOND, 20, 500, &inc_second, &inc_second);
SuperDebounce(&k_inc_brightness, &KEYBOARD_PIN, KEY_INC_BRIGHTNESS, 20, 500, &inc_brightness, &inc_brightness);
}

1
firmware/keyboard.h
View File

@@ -7,6 +7,7 @@
#define KEY_INC_HOUR (1<<PB0)
#define KEY_INC_MINUTE (1<<PB1)
#define KEY_INC_SECOND (1<<PB2)
#define KEY_INC_BRIGHTNESS (1<<PB3)
void keyboard_init(void);
void keyboard_handle_input(void);

73
firmware/led.c
View File

@@ -2,8 +2,7 @@
#include <avr/interrupt.h>
#include "led.h"
#define SET_LED(PORT, IDX, NUM) PORT = ((PORT & ~(1<<(IDX))) | (~(NUM) & 1<<(IDX)))
volatile uint8_t led_brightness = 1;
volatile uint8_t led_hour;
volatile uint8_t led_minute;
volatile uint8_t led_second;
@@ -12,66 +11,48 @@ void led_init(void)
{
// Set outputs
ANODES_DIR |= HOUR_ANODE | MINUTE_ANODE | SECOND_ANODE;
LED0_DIR |= LED0;
LED1_DIR |= LED1;
LED2_DIR |= LED2;
LED3_DIR |= LED3;
LED4_DIR |= LED4;
LED5_DIR |= LED5;
LED_DIR |= 0x3F; // 0b00111111
// Clear LEDs
ANODES_PORT = HOUR_ANODE | MINUTE_ANODE | SECOND_ANODE;
LED0_PORT |= LED0;
LED1_PORT |= LED1;
LED2_PORT |= LED2;
LED3_PORT |= LED3;
LED4_PORT |= LED4;
LED5_PORT |= LED5;
LED_PORT |= 0x3F; // 0b00111111
TCCR0 |= (1<<WGM01); // CTC Mode
TCCR0 |= (1<<CS02) | (1<<CS00); // Prescaler 1024
OCR0 = 38; // 200Hz
TIMSK |= (1<<OCIE0); // Enable CTC interruptions
TCCR0 |= (1<<CS00);
TIMSK |= (1<<TOIE0);
}
ISR(TIMER0_COMP_vect)
// ISR(TIMER0_COMP_vect)
ISR(TIMER0_OVF_vect)
{
static uint8_t counter = 1;
static uint8_t pwm_counter = 0;
static uint8_t counter = 0;
static uint8_t curr_anode = 1;
switch(counter) {
switch(curr_anode)
{
case 1:
ANODES_PORT = ~HOUR_ANODE;
SET_LED(LED0_PORT, 0, led_hour);
SET_LED(LED1_PORT, 1, led_hour);
SET_LED(LED2_PORT, 2, led_hour);
SET_LED(LED3_PORT, 3, led_hour);
SET_LED(LED4_PORT, 4, led_hour);
SET_LED(LED5_PORT, 5, led_hour);
LED_PORT = ~led_hour;
ANODES_PORT = led_brightness >= pwm_counter ? ~HOUR_ANODE : 0xFF;
break;
case 2:
ANODES_PORT = ~MINUTE_ANODE;
SET_LED(LED0_PORT, 0, led_minute);
SET_LED(LED1_PORT, 1, led_minute);
SET_LED(LED2_PORT, 2, led_minute);
SET_LED(LED3_PORT, 3, led_minute);
SET_LED(LED4_PORT, 4, led_minute);
SET_LED(LED5_PORT, 5, led_minute);
LED_PORT = ~led_minute;
ANODES_PORT = led_brightness >= pwm_counter ? ~MINUTE_ANODE : 0xFF;
break;
case 4:
ANODES_PORT = ~SECOND_ANODE;
SET_LED(LED0_PORT, 0, led_second);
SET_LED(LED1_PORT, 1, led_second);
SET_LED(LED2_PORT, 2, led_second);
SET_LED(LED3_PORT, 3, led_second);
SET_LED(LED4_PORT, 4, led_second);
SET_LED(LED5_PORT, 5, led_second);
LED_PORT = ~led_second;
ANODES_PORT = led_brightness >= pwm_counter ? ~SECOND_ANODE : 0xFF;
break;
}
counter <<= 1;
if(counter > 4)
if(!counter)
{
counter = 1;
curr_anode <<= 1;
if(curr_anode > 4) curr_anode = 1;
counter = 250;
}
--counter;
++pwm_counter;
}

21
firmware/led.h
View File

@@ -1,24 +1,8 @@
#ifndef __LED_H__
#define __LED_H__
#define LED0_PORT PORTA
#define LED0_DIR DDRA
#define LED0 (1<<0)
#define LED1_PORT PORTA
#define LED1_DIR DDRA
#define LED1 (1<<1)
#define LED2_PORT PORTA
#define LED2_DIR DDRA
#define LED2 (1<<2)
#define LED3_PORT PORTA
#define LED3_DIR DDRA
#define LED3 (1<<3)
#define LED4_PORT PORTA
#define LED4_DIR DDRA
#define LED4 (1<<4)
#define LED5_PORT PORTA
#define LED5_DIR DDRA
#define LED5 (1<<5)
#define LED_PORT PORTA
#define LED_DIR DDRA
#define ANODES_PORT PORTD
#define ANODES_DIR DDRD
@@ -26,6 +10,7 @@
#define MINUTE_ANODE (1<<PD6)
#define SECOND_ANODE (1<<PD7)
extern volatile uint8_t led_brightness;
extern volatile uint8_t led_hour;
extern volatile uint8_t led_minute;
extern volatile uint8_t led_second;