From c0a19251506591ba366e8a9fd62b2082305d9d6c Mon Sep 17 00:00:00 2001
From: huang <1724659546@qq.com>
Date: Mon, 13 Oct 2025 16:20:50 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AEbug?=
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---
 app/lora/lora_mesh_uart_passthrough_manager.py | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/app/lora/lora_mesh_uart_passthrough_manager.py b/app/lora/lora_mesh_uart_passthrough_manager.py
index 7387b96..f2f79e4 100644
--- a/app/lora/lora_mesh_uart_passthrough_manager.py
+++ b/app/lora/lora_mesh_uart_passthrough_manager.py
@@ -136,9 +136,8 @@ class LoRaMeshUartPassthroughManager:
 
             # 2.3 检查包是否完整
             payload_len = self._rx_buffer[1]
-            # 这里的 total_packet_len 计算方式存疑，它假设 payload_len 是 length 字段之后所有数据的长度。
-            # 这与 send_packet 中的 length 计算方式可能不一致。
-            total_packet_len = 1 + 1 + payload_len
+            # 物理层在末尾又加了2字节的源地址，所以完整包长需要+2。
+            total_packet_len = 1 + 1 + payload_len + 2
             log(f"LoRa: 帧头正确(ED)。声明的后续包长(payload_len): {payload_len}。计算出的总包长: {total_packet_len}。")
 
             if len(self._rx_buffer) < total_packet_len: