init работает

Core/Clock/clock_manager.c

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+#include "clock_manager.h"
+#include "segment.h"
+#include "rtc.h"
+
+static uint8_t dutyValue = 5;
+static time_t currentTime;
+RTC_TimeTypeDef rtc_time;
+
+// Яркость в RTC Backup Register (используем BKP_DR1)
+static void SaveDuty(void) {
+    HAL_RTCEx_BKUPWrite(&hrtc, RTC_BKP_DR1, dutyValue);
+}
+
+static void LoadDuty(void) {
+    uint32_t val = HAL_RTCEx_BKUPRead(&hrtc, RTC_BKP_DR1);
+    dutyValue = (val <= 10 && val > 0) ? (uint8_t)val : 5;
+}
+
+void ClockManager_Init(void) {
+    LoadDuty();
+    Segment_SetBrightness(dutyValue * 10);
+    
+    // Если RTC не инициализирован - сброс времени
+    if (HAL_RTC_GetTime(&hrtc, &rtc_time, RTC_FORMAT_BIN) != HAL_OK) {
+        ClockManager_ResetTime();
+    }
+}
+
+time_t ClockManager_GetTime(void) {
+    HAL_RTC_GetTime(&hrtc, &rtc_time, RTC_FORMAT_BIN);
+    currentTime.hour = rtc_time.Hours;
+    currentTime.min = rtc_time.Minutes;
+    currentTime.sec = rtc_time.Seconds;
+    return currentTime;
+}
+
+void ClockManager_SetTime(uint8_t hour, uint8_t min, uint8_t sec) {
+    RTC_TimeTypeDef rtc_time;
+    rtc_time.Hours = hour;
+    rtc_time.Minutes = min;
+    rtc_time.Seconds = sec;
+//    rtc_time.TimeFormat = RTC_HOURFORMAT_24;
+//    rtc_time.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;
+//    rtc_time.StoreOperation = RTC_STOREOPERATION_RESET;
+    HAL_RTC_SetTime(&hrtc, &rtc_time, RTC_FORMAT_BIN);
+}
+
+uint8_t ClockManager_GetDuty(void) {
+    return dutyValue;
+}
+
+void ClockManager_SetDuty(uint8_t value) {
+    if (value > 10) value = 10;
+    dutyValue = value;
+    Segment_SetBrightness(dutyValue * 10);
+    SaveDuty();
+}
+
+void ClockManager_ResetTime(void) {
+    ClockManager_SetTime(0, 0, 0);
+}