refactor: 重写黄灯故障指示 — 断开次数编码闪烁

- 无线圈上电: 黄灯快闪 (200ms)
- 线圈断开 N 次: N 短闪 (80ms亮/200ms灭 × N, 1.2s间隔)
- 不计入上电前未接线的情况
- 删除旧状态机 (g_led_loop_reconnect 等 4 个变量)
- 新增 g_disconnect_count/active + g_fault_phase/tick

utilities/at32f421_freertos_demo/inc/TaskLoop.h

@@ -115,13 +115,18 @@ extern uint32_t LC_Hold_CNT;              // 安全复位计数器
 extern uint16_t g_safe_max_cnt;           // 安全复位超时
 
 /*===========================================================================
- * 故障指示相关 (DLD154V4B 特有，M1H 无黄灯)
+ * 故障指示相关 — 黄灯 (LEDC, PA10)
+ *
+ * 行为：
+ *   - 无线圈上电：黄灯快闪（200ms 周期）
+ *   - 线圈断开 N 次（N≥1）：N 短闪（N×80ms 亮，间隔 200ms 灭，长灭 1.2s 重复）
+ *   - 线圈正常连接：黄灯灭
  *===========================================================================*/
-extern uint8_t  g_loop_power_up_state;    // 上电后线圈是否曾连接
+extern uint8_t  g_loop_power_up_state;    // 上电后线圈是否曾连接 (0=否, 1=是)
-extern uint8_t  g_led_loop_reconnect;     // 线圈重连状态 (0=正常, >0=故障闪烁)
+extern uint8_t  g_disconnect_count;       // 当前上电周期内线圈断开次数 (0~3)
-extern uint8_t  g_flag_faul_reconnect;    // 故障灯切相
+extern uint8_t  g_disconnect_active;      // 当前处于断开状态 (0=连接/从未连, 1=断开中)
-extern uint8_t  g_step_fault_led;         // 故障灯步骤
+extern uint8_t  g_fault_phase;            // 黄灯闪烁阶段
-extern uint16_t g_counter_fault_led;      // 故障灯计数器
+extern uint16_t g_fault_tick;             // 黄灯闪烁计时器 (每5ms+1)
 
 /*===========================================================================
  * 调试计数器

utilities/at32f421_freertos_demo/src/TaskLoop.c

@@ -81,13 +81,13 @@ uint32_t LC_Hold_CNT    = 0;
 uint16_t g_safe_max_cnt = LC_HOLD_TIME;
 
 /*===========================================================================
- * 故障指示相关 (DLD154V4B 特有黄灯)
+ * 故障指示相关 — 黄灯
  *===========================================================================*/
 uint8_t  g_loop_power_up_state = 0;
-uint8_t  g_led_loop_reconnect  = 0;
+uint8_t  g_disconnect_count    = 0;
-uint8_t  g_flag_faul_reconnect = 0;
+uint8_t  g_disconnect_active   = 0;
-uint8_t  g_step_fault_led      = 0;
+uint8_t  g_fault_phase         = 0;
-uint16_t g_counter_fault_led   = 0;
+uint16_t g_fault_tick          = 0;
 
 /*===========================================================================
  * 调试计数器
@@ -184,79 +184,72 @@ void LEDA_ON_OFF(void)
 }
 
 /*===========================================================================
- * 黄灯故障指示 (LEDC, PA10) — DLD154V4B 特有
+ * 黄灯故障指示 (LEDC, PA10)
- * 状态机由 TMR15 ISR 每 5ms 驱动
+ *
+ * 由 TMR15 ISR 每 5ms 驱动一次。
+ *
+ * 闪烁模式：
+ *   无线圈上电 (g_loop_power_up_state==0):
+ *     → 快闪 (200ms 亮 / 200ms 灭)
+ *   线圈断开过 N 次 (g_disconnect_count >= 1):
+ *     → N 短闪 (80ms 亮, 200ms 灭, 重复 N 次后长灭 1.2s)
+ *   线圈正常连接:
+ *     → 灭
  *===========================================================================*/
 void poll_yellow_led(void)
 {
-#define YELLOW_ON_SHORT     16      // 80ms
+#define FLT_ON_SHORT    16      // 80ms (16 × 5ms)
-#define YELLOW_OFF_MIDDLE    40      // 200ms
+#define FLT_GAP_SHORT   40      // 200ms
-#define YELLOW_OFF_LONG     290      // ~1.45s
+#define FLT_GAP_LONG    240     // 1.2s (240 × 5ms)
+#define FLT_FAST_HALF   40      // 200ms 快闪半周期
 
-    if (!g_loop_power_up_state) return;
+    uint8_t N = g_disconnect_count;
 
-    g_counter_fault_led++;
+    g_fault_tick++;
 
-    if (g_led_loop_reconnect == 0x01) {
+    if (!g_loop_power_up_state) {
-        // 线圈重连：长灭 + 短亮
+        /*--- 模式0: 无线圈上电 → 快闪 ---*/
-        if (g_flag_faul_reconnect) {
+        if (g_fault_tick >= FLT_FAST_HALF) {
-            if (g_counter_fault_led > YELLOW_ON_SHORT) {
+            g_fault_tick = 0;
-                g_counter_fault_led = 0;
+            LED_YELLOW_GPIO->odt ^= LED_YELLOW_PIN;     // toggle
-                g_flag_faul_reconnect = 0;
-                LED_YELLOW_OFF;
-            }
-        } else {
-            if (g_counter_fault_led > YELLOW_OFF_LONG) {
-                g_flag_faul_reconnect = 1;
-                g_counter_fault_led = 0;
-                LED_YELLOW_ON;
-            }
         }
-    } else if (g_led_loop_reconnect >= 0x02) {
+        return;
-        // 线圈断开：编码闪烁
+    }
-        if (g_step_fault_led == 0) {
-            if (g_counter_fault_led > YELLOW_ON_SHORT) {
-                LED_YELLOW_OFF;
-                g_step_fault_led = 1;
-                g_counter_fault_led = 0;
-            }
-        } else if (g_step_fault_led == 1) {
-            if (g_counter_fault_led > YELLOW_OFF_MIDDLE) {
-                LED_YELLOW_ON;
-                g_step_fault_led = 2;
-                g_counter_fault_led = 0;
-            }
-        } else if (g_step_fault_led == 2) {
-            if (g_counter_fault_led > YELLOW_ON_SHORT) {
-                LED_YELLOW_OFF;
-                g_step_fault_led = 3;
-                g_counter_fault_led = 0;
-            }
-        } else if (g_step_fault_led == 3) {
-            if (g_counter_fault_led > (g_led_loop_reconnect >= 0x03
-                                       ? YELLOW_OFF_MIDDLE
-                                       : YELLOW_OFF_LONG)) {
-                LED_YELLOW_ON;
-                g_step_fault_led = 0;
-                g_counter_fault_led = 0;
 
-                // 慢闪模式（低频故障）需要额外步骤
+    if (N == 0) {
-                if (g_led_loop_reconnect >= 0x03) {
+        /*--- 模式1: 无断开记录 → 灭 ---*/
-                    g_step_fault_led = 4;
+        LED_YELLOW_OFF;
-                }
+        g_fault_tick = 0;
-            }
+        g_fault_phase = 0;
-        } else if (g_step_fault_led == 4) {
+        return;
-            if (g_counter_fault_led > YELLOW_ON_SHORT) {
+    }
-                LED_YELLOW_OFF;
+
-                g_step_fault_led = 5;
+    /*--- 模式2: N 短闪 (N=1,2,3) ---*/
-                g_counter_fault_led = 0;
+    if (N > 3) N = 3;             // 最多 3 闪
-            }
+
-        } else if (g_step_fault_led == 5) {
+    uint8_t phases_total = N * 2; // N 个 ON_short + N 个 GAP_short
-            if (g_counter_fault_led > YELLOW_OFF_LONG) {
+    uint16_t duration;
-                LED_YELLOW_ON;
+
-                g_step_fault_led = 0;
+    if (g_fault_phase < phases_total) {
-                g_counter_fault_led = 0;
+        /* ON 或 GAP 阶段 */
-            }
+        duration = (g_fault_phase & 1) ? FLT_GAP_SHORT : FLT_ON_SHORT;
+
+        if (g_fault_phase & 1) {
+            LED_YELLOW_OFF;       // 奇数阶段: 灭
+        } else {
+            LED_YELLOW_ON;        // 偶数阶段: 亮
+        }
+    } else {
+        /* LONG 间隔阶段 */
+        duration = FLT_GAP_LONG;
+        LED_YELLOW_OFF;
+    }
+
+    if (g_fault_tick >= duration) {
+        g_fault_tick = 0;
+        g_fault_phase++;
+        if (g_fault_phase > phases_total) {
+            g_fault_phase = 0;    // 循环
         }
     }
 }
@@ -297,10 +290,10 @@ void INIT_VD(void)
     Hold_CNT       = 0;
 
     g_loop_power_up_state = 0;
-    g_led_loop_reconnect  = 0;
+    g_disconnect_count    = 0;
-    g_flag_faul_reconnect = 0;
+    g_disconnect_active   = 0;
-    g_step_fault_led      = 0;
+    g_fault_phase         = 0;
-    g_counter_fault_led   = 0;
+    g_fault_tick          = 0;
 
     /* 读取拨码初始状态 */
     sw0  = gpio_input_data_bit_read(SW5_BUTTON_PORT, SW5_BUTTON_PIN) << 4;
@@ -647,7 +640,7 @@ void loop_task_function(void *pvParameters)
 
     while (1) {
         if (loop1_LOOP_OK) {
-            /*--- 线圈重连检测 ---*/
+            /*--- 线圈重连 ---*/
             if (!loop1_LOOP_OK0) {
                 /* 线圈恢复：绿灯闪烁提示 */
                 int i;
@@ -658,25 +651,22 @@ void loop_task_function(void *pvParameters)
                     vTaskDelay(200);
                 }
                 loop1_LOOP_OK0 = 1;
+                g_disconnect_active = 0;     // 重连，清除断开标记
             }
 
             if (loop1_CAP_OK) {
                 loop1_CAP_OK = 0;
 
+                /* 首次成功测量 → 标记线圈已连接 */
+                if (!g_loop_power_up_state) {
+                    g_loop_power_up_state = 1;
+                }
+
                 /* 核心检测算法 */
                 vd1_task();
 
                 /* 拨码开关轮询 */
                 poll_sw_state();
-
-                /* 线圈重连故障指示 */
-                if (g_led_loop_reconnect) {
-                    g_led_loop_reconnect &= 0x0F;
-                    g_led_loop_reconnect++;
-                    if (g_led_loop_reconnect > 3) {
-                        g_led_loop_reconnect = 3;
-                    }
-                }
             }
         } else {
             /*--- 线圈断开 ---*/
@@ -685,11 +675,19 @@ void loop_task_function(void *pvParameters)
             RLY2_OFF;
             LEDB_OFF;
 
-            /* 首次检测到断开：标记故障 */
+            /*
-            if (!g_led_loop_reconnect) {
+             * 断开计数规则:
-                g_led_loop_reconnect = 0x02;
+             *   - 从未连接过上电 (g_loop_power_up_state == 0): 不计入
-                g_counter_fault_led  = 0;
+             *   - g_disconnect_active == 0: 新的断开 → 计数+1
-                g_step_fault_led     = 0;
+             *   - g_disconnect_active == 1: 同一次断开，不重复计数
+             */
+            if (g_loop_power_up_state && !g_disconnect_active) {
+                g_disconnect_active = 1;
+                if (g_disconnect_count < 3) {
+                    g_disconnect_count++;
+                }
+                g_fault_phase = 0;
+                g_fault_tick  = 0;
             }
 
             vTaskDelay(150);