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LED 직접 제어 모듈 추가(BSP 대체)

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- 전원 ON/OFF, 블루투스 스캐닝 초록 LED 적용 완료
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jhChun
2026-03-30 18:00:38 +09:00
parent 11a0b3f11a
commit a150d1da96
5 changed files with 520 additions and 152 deletions
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292
project/ble_peripheral/ble_app_bladder_patch/led_control.c Normal file
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/*******************************************************************************
* @file led_control.c
* @brief LED 직접 제어 드라이버 (BSP 미사용)
* @date 2026-03-30
*
* app_timer 1개로 2색 LED(녹색/주황)의 복합 blink 패턴 구현
* 단순 on/off 상태는 타이머 없이 즉시 GPIO 제어
* 복합 패턴(에러 등)은 phase 기반 state machine으로 처리
******************************************************************************/
#include "led_control.h"
#include "nrf_gpio.h"
#include "app_timer.h"
/*==============================================================================
* 내부 상수
*============================================================================*/
#define MS_TO_TICKS(ms) APP_TIMER_TICKS(ms)
/*==============================================================================
* 색상
*============================================================================*/
#define COLOR_NONE 0
#define COLOR_GREEN 1
#define COLOR_ORANGE 2
/*==============================================================================
* 에러 패턴 상수 (No.7)
* 3Hz 깜빡 3회 = 166ms on + 166ms off × 3 = ~1초, 이후 꺼짐 1초
*============================================================================*/
#define ERROR_BLINK_ON_MS 166
#define ERROR_BLINK_OFF_MS 166
#define ERROR_BLINK_COUNT 3
#define ERROR_PAUSE_MS 1000
/*==============================================================================
* 패턴 테이블 (단순 blink 용)
*============================================================================*/
typedef struct
{
uint32_t on_ms; /* LED 켜짐 시간 (ms) */
uint32_t off_ms; /* LED 꺼짐 시간 (ms) */
uint8_t color; /* COLOR_GREEN 또는 COLOR_ORANGE */
bool repeat; /* true: 무한 반복, false: 1회 후 OFF */
} led_pattern_t;
static const led_pattern_t m_patterns[LED_STATE_COUNT] =
{
[LED_STATE_OFF] = { 0, 0, COLOR_NONE, false },
[LED_STATE_POWER_ON] = { 2000, 0, COLOR_GREEN, false }, /* 초록 점등 2초 → 유지 */
[LED_STATE_POWER_OFF] = { 2000, 0, COLOR_GREEN, false }, /* 초록 점등 2초 → OFF */
[LED_STATE_ADVERTISING] = { 1000, 1000, COLOR_GREEN, true }, /* 초록 점멸 1초 */
[LED_STATE_DETACH_WARNING] = { 1000, 3000, COLOR_GREEN, true }, /* 초록 1초 on / 3초 off */
[LED_STATE_ALIGN_SEARCHING] = { 1000, 1000, COLOR_ORANGE, true }, /* 주황 점멸 1초 */
[LED_STATE_ALIGN_COMPLETE] = { 3000, 1000, COLOR_GREEN, true }, /* 초록 3초 on / 1초 off */
[LED_STATE_ERROR] = { 0, 0, COLOR_ORANGE, true } /* 별도 state machine */
};
/*==============================================================================
* 모듈 변수
*============================================================================*/
APP_TIMER_DEF(m_led_timer);
static led_state_t m_current_state = LED_STATE_OFF;
static bool m_phase_on; /* true: LED 켜진 구간, false: 꺼진 구간 */
/* 에러 패턴 전용 */
static uint8_t m_error_blink_cnt; /* 현재까지 깜빡인 횟수 */
static uint8_t m_error_phase; /* 0: blink-on, 1: blink-off, 2: pause */
/*==============================================================================
* GPIO 헬퍼
*============================================================================*/
static inline void led_green_on(void)
{
#if LED_ACTIVE_LOW
nrf_gpio_pin_clear(LED_PIN_GREEN);
#else
nrf_gpio_pin_set(LED_PIN_GREEN);
#endif
}
static inline void led_green_off(void)
{
#if LED_ACTIVE_LOW
nrf_gpio_pin_set(LED_PIN_GREEN);
#else
nrf_gpio_pin_clear(LED_PIN_GREEN);
#endif
}
static inline void led_orange_on(void)
{
#if LED_ACTIVE_LOW
nrf_gpio_pin_clear(LED_PIN_ORANGE);
#else
nrf_gpio_pin_set(LED_PIN_ORANGE);
#endif
}
static inline void led_orange_off(void)
{
#if LED_ACTIVE_LOW
nrf_gpio_pin_set(LED_PIN_ORANGE);
#else
nrf_gpio_pin_clear(LED_PIN_ORANGE);
#endif
}
static void led_all_off(void)
{
led_green_off();
led_orange_off();
}
static void led_color_on(uint8_t color)
{
led_all_off();
if (color == COLOR_GREEN) led_green_on();
else if (color == COLOR_ORANGE) led_orange_on();
}
/*==============================================================================
* 타이머 시작 헬퍼
*============================================================================*/
static void timer_start_ms(uint32_t ms)
{
if (ms == 0) return;
app_timer_start(m_led_timer, MS_TO_TICKS(ms), NULL);
}
/*==============================================================================
* 에러 패턴 state machine (No.7)
* phase 0: LED ON (166ms) → phase 1
* phase 1: LED OFF (166ms) → cnt++ → cnt<3 ? phase 0 : phase 2
* phase 2: PAUSE (1000ms) → cnt=0, phase 0
*============================================================================*/
static void error_pattern_start(void)
{
m_error_blink_cnt = 0;
m_error_phase = 0;
led_color_on(COLOR_ORANGE);
timer_start_ms(ERROR_BLINK_ON_MS);
}
static void error_pattern_tick(void)
{
switch (m_error_phase)
{
case 0: /* ON 구간 끝 → OFF */
led_all_off();
m_error_phase = 1;
timer_start_ms(ERROR_BLINK_OFF_MS);
break;
case 1: /* OFF 구간 끝 */
m_error_blink_cnt++;
if (m_error_blink_cnt < ERROR_BLINK_COUNT)
{
/* 다시 ON */
m_error_phase = 0;
led_color_on(COLOR_ORANGE);
timer_start_ms(ERROR_BLINK_ON_MS);
}
else
{
/* 3회 완료 → pause */
m_error_phase = 2;
timer_start_ms(ERROR_PAUSE_MS);
}
break;
case 2: /* pause 끝 → 처음부터 */
m_error_blink_cnt = 0;
m_error_phase = 0;
led_color_on(COLOR_ORANGE);
timer_start_ms(ERROR_BLINK_ON_MS);
break;
default:
break;
}
}
/*==============================================================================
* 타이머 콜백
*============================================================================*/
static void led_timer_handler(void * p_context)
{
(void)p_context;
/* 에러 상태는 별도 처리 */
if (m_current_state == LED_STATE_ERROR)
{
error_pattern_tick();
return;
}
const led_pattern_t * p = &m_patterns[m_current_state];
if (m_phase_on)
{
/* ON→OFF 전환 */
led_all_off();
m_phase_on = false;
if (p->off_ms > 0)
{
timer_start_ms(p->off_ms);
}
else if (!p->repeat)
{
/* 1회성: off_ms == 0 이면 그냥 유지 (POWER_ON) 또는 끄기 (POWER_OFF) */
if (m_current_state == LED_STATE_POWER_OFF)
{
led_all_off();
m_current_state = LED_STATE_OFF;
}
/* POWER_ON: 점등 유지 상태 → 타이머 x */
}
}
else
{
/* OFF → ON 전환 */
if (p->repeat)
{
led_color_on(p->color);
m_phase_on = true;
timer_start_ms(p->on_ms);
}
/* repeat == false && off_ms > 0 인 경우는 현재 없음 */
}
}
/*==============================================================================
* 공개 함수
*============================================================================*/
void led_init(void)
{
/* GPIO 출력 설정 */
nrf_gpio_cfg_output(LED_PIN_GREEN);
nrf_gpio_cfg_output(LED_PIN_ORANGE);
led_all_off();
/* 타이머 생성 (single-shot) */
app_timer_create(&m_led_timer, APP_TIMER_MODE_SINGLE_SHOT, led_timer_handler);
m_current_state = LED_STATE_OFF;
}
void led_set_state(led_state_t state)
{
if (state >= LED_STATE_COUNT) return;
/* 이전 패턴 중단 */
app_timer_stop(m_led_timer);
led_all_off();
m_current_state = state;
m_phase_on = false;
const led_pattern_t * p = &m_patterns[state];
switch (state)
{
case LED_STATE_OFF:
/* 이미 all off */
break;
/* 에러 패턴: 별도 state machine */
case LED_STATE_ERROR:
error_pattern_start();
break;
/* 그 외: on 구간부터 시작 */
default:
led_color_on(p->color);
m_phase_on = true;
if (p->on_ms > 0)
{
timer_start_ms(p->on_ms);
}
break;
}
}
led_state_t led_get_state(void)
{
return m_current_state;
}