still wip

User/lib/rtc/rtc.c

@@ -48,6 +48,43 @@ uint8_t Is_Leap_Year (u16 year) {
         return 0;
 }
 
+static uint8_t month_from_str(const char *m) {
+    static const char months[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
+    for (uint8_t i = 0; i < 12; i++) {
+        if (m[0] == months[i*3] &&
+            m[1] == months[i*3 + 1] &&
+            m[2] == months[i*3 + 2])
+            return i + 1; // 1¨C12
+    }
+    return 0; // should never happen
+}
+
+void RTC_Set_From_BuildTime(void) {
+    const char *date = __DATE__;
+    const char *time = __TIME__;
+
+    uint16_t year =
+        (date[7] - '0') * 1000 +
+        (date[8] - '0') * 100 +
+        (date[9] - '0') * 10 +
+        (date[10] - '0');
+
+    uint8_t month = month_from_str(date);
+    uint8_t day =
+        (date[4] == ' ' ? 0 : (date[4] - '0') * 10) +
+        (date[5] - '0');
+
+    uint8_t hour =
+        (time[0] - '0') * 10 + (time[1] - '0');
+    uint8_t min =
+        (time[3] - '0') * 10 + (time[4] - '0');
+    uint8_t sec =
+        (time[6] - '0') * 10 + (time[7] - '0');
+
+    RTC_Set(year, month, day, hour, min, sec);
+}
+
+
 /*********************************************************************
  * @fn      RTC_Set
  *
@@ -244,7 +281,8 @@ uint8_t RTC_Init (void) {
     RTC_EnterConfigMode();
     RTC_SetPrescaler (32767);
     RTC_WaitForLastTask();
-    RTC_Set (2025, 9, 7, 11, 33, 30); /* Setup Time */
+    //RTC_Set (2025, 9, 7, 11, 33, 30); /* Setup Time */
+    RTC_Set_From_BuildTime();
     RTC_ExitConfigMode();
     BKP_WriteBackupRegister (BKP_DR1, 0XA1A1);