From 9215d91eb5471e4bdfe296d23440be11c5270ca4 Mon Sep 17 00:00:00 2001
From: bmy <2583236812@qq.com>
Date: Wed, 20 Mar 2024 01:05:48 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E6=AD=A3=E5=B8=A7=E8=A7=A3?=
 =?UTF-8?q?=E6=9E=90=E8=BF=9B=E5=85=A5=E6=9D=A1=E4=BB=B6?=
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---
 app/by_frame.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/app/by_frame.c b/app/by_frame.c
index 15b748f..bed8a72 100644
--- a/app/by_frame.c
+++ b/app/by_frame.c
@@ -44,8 +44,9 @@ void by_frame_parse(uint8_t data_num, uint32_t *data_array)
     uint8_t frame_buffer[4 + 8]       = {0};
     uint8_t buf[sizeof(frame_buffer)] = {0};
 
-    if (len < 4 + 4 * data_num) {
-        // 缓冲区内长度小于帧长度，直接返回
+    if (len < 2 * (4 + 4 * data_num)) {
+        // 当前要求缓冲区满
+        // (x) 缓冲区内长度小于帧长度，直接返回
         // 要是每次读的时候缓冲区内就只有前一帧的尾部和后一帧的头部，岂不是很尴尬
         // 是不是应该正确解析之后再把过的部分清空？但是是异步操作，实际上缓冲区内已经是新数据了
         // 可是直接读取 fifo 的话也是异步操作