feat(ui): extend set_clock_app to edit day/month/year, not just time

time_edit_field now cycles through 5 fields (hour/min/day/month/year)
via long-press CONFIRM. Up/down adjusts whichever field is focused,
with day clamped to Days_In_Month() when month/year changes, and
Clock_RecalcWeekday() called after every date edit so the weekday
label stays in sync. UI_UpdateSetTimeDigit() now also refreshes the
weekday abbreviation when editing day/month/year, since the computed
weekday can change independently of which digit was actually touched.
Save writes the full date+weekday via PCF8563_WriteDateTime(). Also
removes PCF8563_ReadTime()/WriteTime(), now unused since every caller
was updated to the DateTime variants directly.

App/app_set_clock.c

@@ -12,7 +12,7 @@ extern SystemState current_state;
 extern volatile u16 ms_tick;
 
 // 本应用私有的时间编辑状态
-static u8 time_edit_field = 1;    // 标识当前聚焦在哪一个参数上进行微调 (1:修改小时, 2:修改分钟)
+static u8 time_edit_field = 1;    // 当前聚焦调节的字段 (1:小时, 2:分钟, 3:日, 4:月, 5:年)
 static u8 time_edit_blink_on = 1; // 时钟修改时光标闪烁周期状态位
 
 // 声明本应用的生命周期回调函数
@@ -49,7 +49,7 @@ static void SetClockApp_OnStart(void)
     MOTOR = 0;
 
     // 渲染显示时间编辑界面，默认高亮编辑小时字段，消隐位开启
-    UI_ShowSetTimePage(current_hour, current_min, time_edit_field, 1);
+    UI_ShowSetTimePage(current_hour, current_min, current_day, current_month, current_year, current_weekday, time_edit_field, 1);
     XTELL_LOG("[SetClockApp] Started\r\n");
 }
 
@@ -63,8 +63,8 @@ static void SetClockApp_onRun(void)
     if (blink != time_edit_blink_on)
     {
         time_edit_blink_on = blink;
-        // 每次闪烁状态发生变化，只局部刷新正在调节的那个数字，不整屏重绘
+        // 每次闪烁状态发生变化，只局部刷新正在调节的那个字段，不整屏重绘
-        UI_UpdateSetTimeDigit(current_hour, current_min, time_edit_field, time_edit_blink_on);
+        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, time_edit_field, time_edit_blink_on);
     }
 }
 
@@ -84,49 +84,83 @@ static EventResult SetClockApp_onEvent(SystemEvent *evt)
 {
     if (evt->key_event == KEY_EVENT_UP_CLICK)
     {
-        // 短按 ▲ 键增加数值 (小时/分钟循环相加)
+        // 短按 ▲ 键增加当前聚焦字段的数值 (各字段独立循环)
-        if (time_edit_field == 1) {
+        switch (time_edit_field) {
-            current_hour = (current_hour + 1) % 24;
+            case 1: current_hour = (current_hour + 1) % 24; break;
-        } else {
+            case 2: current_min = (current_min + 1) % 60; break;
-            current_min = (current_min + 1) % 60;
+            case 3:
+                current_day = (current_day >= Days_In_Month(current_year, current_month)) ? 1 : (current_day + 1);
+                Clock_RecalcWeekday();
+                break;
+            case 4:
+                current_month = (current_month >= 12) ? 1 : (current_month + 1);
+                // 月份变化后，若当前日超出新月份的最大天数，截断到最大天数
+                if (current_day > Days_In_Month(current_year, current_month)) {
+                    current_day = Days_In_Month(current_year, current_month);
+                }
+                Clock_RecalcWeekday();
+                break;
+            default: // 5: 年
+                current_year = (current_year >= 99) ? 0 : (current_year + 1);
+                if (current_day > Days_In_Month(current_year, current_month)) {
+                    current_day = Days_In_Month(current_year, current_month);
+                }
+                Clock_RecalcWeekday();
+                break;
         }
         time_edit_blink_on = 1; // 调值后强制显示 (不处于消隐周期)
-        UI_UpdateSetTimeDigit(current_hour, current_min, time_edit_field, 1);
+        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, time_edit_field, 1);
         return EVENT_HANDLED;
     }
     if (evt->key_event == KEY_EVENT_DOWN_CLICK)
     {
-        // 短按 ▼ 键减小数值
+        // 短按 ▼ 键减小当前聚焦字段的数值 (各字段独立循环)
-        if (time_edit_field == 1) {
+        switch (time_edit_field) {
-            current_hour = (current_hour == 0) ? 23 : (current_hour - 1);
+            case 1: current_hour = (current_hour == 0) ? 23 : (current_hour - 1); break;
-        } else {
+            case 2: current_min = (current_min == 0) ? 59 : (current_min - 1); break;
-            current_min = (current_min == 0) ? 59 : (current_min - 1);
+            case 3:
+                current_day = (current_day <= 1) ? Days_In_Month(current_year, current_month) : (current_day - 1);
+                Clock_RecalcWeekday();
+                break;
+            case 4:
+                current_month = (current_month <= 1) ? 12 : (current_month - 1);
+                if (current_day > Days_In_Month(current_year, current_month)) {
+                    current_day = Days_In_Month(current_year, current_month);
+                }
+                Clock_RecalcWeekday();
+                break;
+            default: // 5: 年
+                current_year = (current_year == 0) ? 99 : (current_year - 1);
+                if (current_day > Days_In_Month(current_year, current_month)) {
+                    current_day = Days_In_Month(current_year, current_month);
+                }
+                Clock_RecalcWeekday();
+                break;
         }
         time_edit_blink_on = 1; // 调值后强制显示 (不处于消隐周期)
-        UI_UpdateSetTimeDigit(current_hour, current_min, time_edit_field, 1);
+        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, time_edit_field, 1);
         return EVENT_HANDLED;
     }
     if (evt->key_event == KEY_EVENT_CONFIRM_LONG)
     {
-        // 长按 ■ 确认键切换调节字段 (在修改小时与修改分钟间跳转)
+        // 长按 ■ 确认键切换调节字段 (小时 -> 分钟 -> 日 -> 月 -> 年 -> 循环回小时)
-        if (time_edit_field == 1) {
+        time_edit_field = (time_edit_field >= 5) ? 1 : (time_edit_field + 1);
-            time_edit_field = 2;
+        time_edit_blink_on = 1; // 切换焦点后所有字段都应处于可见状态
-        } else {
+        // 全部字段各局部刷新一次，避免切换前正处于消隐周期的那个字段停留在涂黑状态
-            time_edit_field = 1;
+        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, 1, 1);
-        }
+        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, 2, 1);
-        time_edit_blink_on = 1; // 切换焦点后两个字段都应处于可见状态
+        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, 3, 1);
-        // 两个数字区域都局部刷新一次，避免切换前正处于消隐周期的那个数字停留在涂黑状态
+        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, 4, 1);
-        UI_UpdateSetTimeDigit(current_hour, current_min, 1, 1);
+        UI_UpdateSetTimeDigit(current_hour, current_min, current_day, current_month, current_year, current_weekday, 5, 1);
-        UI_UpdateSetTimeDigit(current_hour, current_min, 2, 1);
         return EVENT_HANDLED;
     }
     if (evt->key_event == KEY_EVENT_CONFIRM_CLICK)
     {
-        // 短按 ■ 确认键保存最新时钟配置，退出到主菜单 (父 App)
+        // 短按 ■ 确认键保存最新时间与日期配置，退出到主菜单 (父 App)
         current_state = STATE_PAIR_MENU;
 
-        // 同步将最新时间 (hour, min, 0秒) 写入 PCF8563 芯片寄存器
+        // 同步将最新时间与日期 (含算好的星期) 一次性写入 PCF8563 芯片寄存器
-        PCF8563_WriteTime(current_hour, current_min, 0);
+        PCF8563_WriteDateTime(current_hour, current_min, 0, current_day, current_month, current_year, current_weekday);
 
         // 退出短振反馈
         MOTOR = 1; Delay_ms(50); MOTOR = 0;

App/ui.c

@@ -480,13 +480,14 @@ void UI_ShowSetTimePage(u8 hour, u8 min, u8 day, u8 month, u8 year, u8 weekday,
 
 /**
  * @brief 局部刷新时间设置界面里"正在调节的那一个"字段 (小时/分钟/日/月/年)
+ * @param weekday 根据当前日期算出的星期 (0=周日, ..., 6=周六)，调节日/月/年时顺带刷新星期缩写
  * @param selection 1:小时, 2:分钟, 3:日, 4:月, 5:年
  * @param blink_on 1:显示数值, 0:消隐(涂黑)，用于 500ms 周期闪烁效果
  * @details 小时/分钟用 32x32px 大字体区域；日/月/年用日期栏里对应的 16x16px 小字体区域，
  *          都只重画自己那一小块，不触碰锁头/电池/冒号/AM-PM/星期文字等其它内容，
  *          避免每次闪烁或调值都整屏 LCD_Clear() 造成全屏闪烁。
  */
-void UI_UpdateSetTimeDigit(u8 hour, u8 min, u8 day, u8 month, u8 year, u8 selection, u8 blink_on)
+void UI_UpdateSetTimeDigit(u8 hour, u8 min, u8 day, u8 month, u8 year, u8 weekday, u8 selection, u8 blink_on)
 {
     char buf[3];
     u16 x;
@@ -503,6 +504,12 @@ void UI_UpdateSetTimeDigit(u8 hour, u8 min, u8 day, u8 month, u8 year, u8 select
         default: x = DATE_BAR_YEAR_X; y = DATE_BAR_Y; w = DATE_BAR_FIELD_W; h = 16; value = year;  break;
     }
 
+    // 调节日/月/年时，星期缩写可能因为日期变化而改变，顺带刷新一下 (不参与闪烁，始终显示)
+    if (selection >= 3) {
+        LCD_FillRect(DATE_BAR_START_X, DATE_BAR_Y, 24, 16, COLOR_BLACK);
+        LCD_ShowString(DATE_BAR_START_X, DATE_BAR_Y, Lang_Get((StringID)(STR_WEEKDAY_SUN + weekday)), COLOR_GRAY, COLOR_BLACK);
+    }
+
     if (!blink_on) {
         // 灭周期：直接把这一小块涂黑，形成消隐效果
         LCD_FillRect(x, y, w, h, COLOR_BLACK);

App/ui.h

@@ -91,9 +91,10 @@ void UI_ShowSetTimePage(u8 hour, u8 min, u8 day, u8 month, u8 year, u8 weekday,
 
 /**
  * @brief 局部刷新时间设置界面里正在调节的那一个字段 (小时/分钟/日/月/年)，用于闪烁/调值时避免整屏重绘
+ * @param weekday 根据当前日期算出的星期 (0=周日, ..., 6=周六)，调节日/月/年时顺带刷新星期缩写
  * @param selection 1:小时, 2:分钟, 3:日, 4:月, 5:年
  * @param blink_on 1:显示数值, 0:消隐(涂黑)
  */
-void UI_UpdateSetTimeDigit(u8 hour, u8 min, u8 day, u8 month, u8 year, u8 selection, u8 blink_on);
+void UI_UpdateSetTimeDigit(u8 hour, u8 min, u8 day, u8 month, u8 year, u8 weekday, u8 selection, u8 blink_on);
 
 #endif // __UI_H__

Drivers/pcf8563.c

@@ -310,45 +310,6 @@ bit PCF8563_ReadDateTime(u8 *hour, u8 *min, u8 *sec, u8 *day, u8 *month, u8 *yea
     return 1;
 }
 
-/**
- * @brief 从 PCF8563 读取当前时间 (兼容旧接口，只取时分秒，丢弃日期部分)
- */
-bit PCF8563_ReadTime(u8 *hour, u8 *min, u8 *sec)
-{
-    u8 day, month, year;
-    return PCF8563_ReadDateTime(hour, min, sec, &day, &month, &year);
-}
-
-/**
- * @brief 将时间精准写入 PCF8563 RTC 芯片 (只写时分秒三个寄存器，不触碰日期寄存器)
- */
-bit PCF8563_WriteTime(u8 hour, u8 min, u8 sec)
-{
-    I2C_Start();
-    I2C_SendByte(PCF8563_ADDR_WRITE);
-    if (!I2C_WaitAck()) return 0;
-
-    // 定位写入起始寄存器 0x02
-    I2C_SendByte(REG_VL_SECONDS);
-    if (!I2C_WaitAck()) return 0;
-
-    // 写入秒
-    I2C_SendByte(DEC2BCD(sec & 0x7F));
-    if (!I2C_WaitAck()) return 0;
-
-    // 写入分
-    I2C_SendByte(DEC2BCD(min & 0x7F));
-    if (!I2C_WaitAck()) return 0;
-
-    // 写入时
-    I2C_SendByte(DEC2BCD(hour & 0x3F));
-    if (!I2C_WaitAck()) return 0;
-
-    I2C_Stop();
-
-    return 1;
-}
-
 /**
  * @brief 将时间与日期一次性连续写入 PCF8563 RTC 芯片 (寄存器 0x02~0x08 共 7 字节连续写入)
  */

Drivers/pcf8563.h

@@ -24,24 +24,6 @@
  */
 bit PCF8563_Init(void);
 
-/**
- * @brief 从 PCF8563 芯片读取当前时间 (时、分、秒)
- * @param hour 小时指针 (0~23)
- * @param min 分钟指针 (0~59)
- * @param sec 秒钟指针 (0~59)
- * @return bit 1: 读取成功, 0: 通讯失败
- */
-bit PCF8563_ReadTime(u8 *hour, u8 *min, u8 *sec);
-
-/**
- * @brief 将指定的时间 (时、分、秒) 写入 PCF8563 芯片
- * @param hour 小时 (0~23)
- * @param min 分钟 (0~59)
- * @param sec 秒钟 (0~59)
- * @return bit 1: 写入成功, 0: 通讯失败
- */
-bit PCF8563_WriteTime(u8 hour, u8 min, u8 sec);
-
 /**
  * @brief 从 PCF8563 芯片连续读取时间与日期 (时/分/秒/日/月/年)
  * @param hour 小时指针 (0~23)