diff --git a/V1.5/STM32F103_App1/HardWare/FEED_SCALE/feed_scale.c b/V1.5/STM32F103_App1/HardWare/FEED_SCALE/feed_scale.c
index 3dc6f4c..8fd2725 100644
--- a/V1.5/STM32F103_App1/HardWare/FEED_SCALE/feed_scale.c
+++ b/V1.5/STM32F103_App1/HardWare/FEED_SCALE/feed_scale.c
@@ -80,6 +80,23 @@ static int feed_scale_parse_weight(const uint8_t *buf, uint16_t len, uint16_t *w
 {
     feed_scale_dump_frame(buf, len);
 
+    /* 定位应答帧头（站号+03+字节数04）：485 回声或前导垃圾可能混在帧头前面 */
+    int hdr = -1;
+    for (int i = 0; i + 8 < len; i++) {
+        if (buf[i] == RS485_WEIGHT_CMD[0] && buf[i+1] == 0x03 && buf[i+2] == 0x04) {
+            hdr = i;
+            break;
+        }
+    }
+    if (hdr > 0) {
+        log_info("> FEED: 跳过前导 %d 字节（回声/干扰）", hdr);
+        buf += hdr;
+        len -= hdr;
+    } else if (hdr < 0 && len >= 9) {
+        log_warn("> FEED: 解析失败-找不到帧头 01 03 04");
+        return -6;
+    }
+
     if (len < 9) {
         log_warn("> FEED: 解析失败-帧长度过短(%d<9),可能波特率不对或线路干扰", (int)len);
         return -1;
@@ -126,6 +143,8 @@ static void feed_scale_send_query(void)
 {
     USART2_ForceRxReset();   /* 清缓冲+重挂接收，防止前次残留状态吞掉本次应答 */
     HAL_UART_Transmit(&huart2, (uint8_t *)RS485_WEIGHT_CMD, sizeof(RS485_WEIGHT_CMD), 100);
+    HAL_Delay(5);            /* 等 485 回声（自己 TX 被 RX 听到）收尾 */
+    USART2_ForceRxReset();   /* 清掉回声，应答帧从干净状态开始 */
 }
 
 /* 读取 485 返回帧 */
diff --git a/V1.5/鐗堟湰璇存槑.md b/V1.5/鐗堟湰璇存槑.md
index b22a06e..57eded1 100644
--- a/V1.5/鐗堟湰璇存槑.md
+++ b/V1.5/鐗堟湰璇存槑.md
@@ -182,3 +182,5 @@
 - 鍘绘帀 OLED 闃茬儳灞忓乏鍙冲亸绉伙紙鏂數宸插叧灞忥紝鍋忕Щ鎰忎箟涓嶅ぇ锛�
 - 淇 485 棣栨搴旂瓟涓㈠け锛歎SART2 鎺ユ敹鍙兘鍥� ORE 娈嬬暀鐘舵�佸崱姝伙紙鑷剤閲嶆寕鍥� RxState 闈� READY 闈欓粯澶辫触锛夛紝
   鐜版瘡娆℃煡璇㈠墠 USART2_ForceRxReset() 寮哄埗澶嶄綅鎺ユ敹锛堟竻閿欒/缂撳啿+閲嶆寕涓柇锛夛紝棣栧寘涓嶅啀涓�
+- 淇 485 鍥炲０鍚冨簲绛斿抚澶达細鏌ヨ TX 鍚庣瓑 5ms 娓呭洖澹扮紦鍐诧紱瑙ｆ瀽鏃舵敼涓哄湪甯у唴瀹氫綅 01 03 04 甯уご锛�
+  鎶楀洖澹�/鍓嶅鍨冨溇锛堝揩閫熷簲绛斾笉鍐嶈鍚炲墠鍑犱釜瀛楄妭锛�