From 9eb3879aab6d8b9776fcdc02c0c3b9414177cf74 Mon Sep 17 00:00:00 2001
From: CaoWangrenbo <cao.wangrenbo@yandex.com>
Date: Wed, 19 Feb 2025 16:09:44 +0800
Subject: [PATCH] initial commit

---
 .gitignore            | 290 ++++++++++++++++++++++++++++++++++++++++++
 .vscode/settings.json |  10 ++
 CMakeLists.txt        |  29 +++++
 hx_ringbuffer.c       | 123 ++++++++++++++++++
 hx_ringbuffer.h       |  46 +++++++
 jpeg_corrupt_test.py  |  81 ++++++++++++
 recv_test             | Bin 0 -> 16800 bytes
 recv_test.c           | 141 ++++++++++++++++++++
 serial_data.txt       |   1 +
 serial_module.c       | 262 ++++++++++++++++++++++++++++++++++++++
 serial_module.so      | Bin 0 -> 37160 bytes
 serial_module_bk.c    | 269 +++++++++++++++++++++++++++++++++++++++
 test_recv.jpg         | Bin 0 -> 10573 bytes
 test_recv.py          |  21 +++
 test_send.jpg         | Bin 0 -> 6920 bytes
 test_send.py          |  43 +++++++
 tool_capserial        | Bin 0 -> 16544 bytes
 tool_capserial.c      |  77 +++++++++++
 tool_ckframe.py       |  33 +++++
 19 files changed, 1426 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 .vscode/settings.json
 create mode 100644 CMakeLists.txt
 create mode 100644 hx_ringbuffer.c
 create mode 100644 hx_ringbuffer.h
 create mode 100644 jpeg_corrupt_test.py
 create mode 100755 recv_test
 create mode 100644 recv_test.c
 create mode 100644 serial_data.txt
 create mode 100644 serial_module.c
 create mode 100755 serial_module.so
 create mode 100644 serial_module_bk.c
 create mode 100644 test_recv.jpg
 create mode 100644 test_recv.py
 create mode 100644 test_send.jpg
 create mode 100644 test_send.py
 create mode 100755 tool_capserial
 create mode 100644 tool_capserial.c
 create mode 100644 tool_ckframe.py

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a3585c6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,290 @@
+# Created by https://www.toptal.com/developers/gitignore/api/c,c++,visualstudiocode,python,cmake
+# Edit at https://www.toptal.com/developers/gitignore?templates=c,c++,visualstudiocode,python,cmake
+
+### C ###
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf
+
+### C++ ###
+# Prerequisites
+
+# Compiled Object files
+*.slo
+
+# Precompiled Headers
+
+# Compiled Dynamic libraries
+
+# Fortran module files
+*.mod
+*.smod
+
+# Compiled Static libraries
+*.lai
+
+# Executables
+
+### CMake ###
+CMakeLists.txt.user
+CMakeCache.txt
+CMakeFiles
+CMakeScripts
+Testing
+Makefile
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake
+_deps
+
+### CMake Patch ###
+CMakeUserPresets.json
+
+# External projects
+*-prefix/
+
+### Python ###
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/
+
+### Python Patch ###
+# Poetry local configuration file - https://python-poetry.org/docs/configuration/#local-configuration
+poetry.toml
+
+# ruff
+.ruff_cache/
+
+# LSP config files
+pyrightconfig.json
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+!.vscode/*.code-snippets
+
+# Local History for Visual Studio Code
+.history/
+
+# Built Visual Studio Code Extensions
+*.vsix
+
+### VisualStudioCode Patch ###
+# Ignore all local history of files
+.history
+.ionide
+
+# End of https://www.toptal.com/developers/gitignore/api/c,c++,visualstudiocode,python,cmake
+
+# 排除生成产物
+!serial_module.so
+
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..325b0a1
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,10 @@
+{
+    "files.associations": {
+        "hx_serial.h": "c",
+        "stdlib.h": "c",
+        "fec.h": "c",
+        "unistd.h": "c",
+        "hx_ringbuffer.h": "c",
+        "zlib.h": "c"
+    }
+}
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..b78a879
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,29 @@
+cmake_minimum_required(VERSION 3.10)
+project(serial_module)
+
+# 查找 Python 开发包
+set(Python3_ROOT_DIR ~/miniconda3/envs/videomea_deploy)
+find_package(Python3 REQUIRED COMPONENTS Development)
+
+# 添加 Python 头文件路径
+include_directories(${Python3_INCLUDE_DIRS})
+
+# 添加系统头文件路径（如果 hx_serial.h 在默认位置，可以省略）
+# include_directories(/usr/include /usr/local/include)
+
+# 添加源文件
+set(SOURCES serial_module.c hx_ringbuffer.c)
+
+# 创建 Python 模块
+Python3_add_library(serial_module MODULE ${SOURCES})
+
+find_package(ZLIB REQUIRED)
+
+target_link_libraries(serial_module PRIVATE hx-serial fec ${ZLIB_LIBRARIES})
+
+# 设置输出目录和文件名
+set_target_properties(serial_module PROPERTIES
+    LIBRARY_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}
+    PREFIX ""
+    SUFFIX ".so"
+)
\ No newline at end of file
diff --git a/hx_ringbuffer.c b/hx_ringbuffer.c
new file mode 100644
index 0000000..572df63
--- /dev/null
+++ b/hx_ringbuffer.c
@@ -0,0 +1,123 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "hx_ringbuffer.h"
+
+int by_ringbuf_init(by_ringbuf_t *rb, int size) {
+#ifdef BY_RINGBUF_STATIC_ALLOC
+    // 使用预先分配的内存
+    static uint8_t static_buffer[BY_RINGBUF_STATIC_BUFFER_SIZE]; 
+    
+    if (size > sizeof(static_buffer)) {
+        return -1; // 预先分配的内存不足
+    }
+    rb->buffer = static_buffer;
+#else
+    // 使用 malloc 动态分配内存
+    rb->buffer = (uint8_t *)malloc(size);
+    if (rb->buffer == NULL) {
+        return -1; // 分配内存失败
+    }
+#endif
+
+    rb->size = size;
+    rb->head = 0;
+    rb->tail = 0;
+    rb->is_full = false;
+    return 0;
+}
+
+void by_ringbuf_free(by_ringbuf_t *rb) {
+#ifndef BY_RINGBUF_STATIC_ALLOC
+    // 只有使用 malloc 分配的内存才需要释放
+    if (rb->buffer) {
+        free(rb->buffer);
+        rb->buffer = NULL;
+    }
+#endif
+
+    rb->size = 0;
+    rb->head = 0;
+    rb->tail = 0;
+    rb->is_full = false;
+}
+
+int by_ringbuf_append(by_ringbuf_t *rb, const uint8_t *data, int len) {
+    if (len > by_ringbuf_available_space(rb)) {
+        return -1; // 缓冲区空间不足
+    }
+
+    for (int i = 0; i < len; i++) {
+        rb->buffer[rb->head] = data[i];
+        rb->head = (rb->head + 1) % rb->size;
+        if (rb->head == rb->tail) {
+            rb->is_full = true;
+        }
+    }
+
+    return len;
+}
+
+int by_ringbuf_pop(by_ringbuf_t *rb, uint8_t *data, int len) {
+    if (len > by_ringbuf_available_data(rb)) {
+        return -1; // 数据不足
+    }
+
+    for (int i = 0; i < len; i++) {
+        data[i] = rb->buffer[rb->tail];
+        rb->tail = (rb->tail + 1) % rb->size;
+        rb->is_full = false;
+    }
+
+    return len;
+}
+
+int by_ringbuf_find(by_ringbuf_t *rb, const uint8_t *pattern, int pattern_len) {
+    int available_data = by_ringbuf_available_data(rb);
+    if (pattern_len > available_data) {
+        return -1; // 数据不足，无法查找
+    }
+
+    for (int i = 0; i <= available_data - pattern_len; i++) {
+        int match = 1;
+        for (int j = 0; j < pattern_len; j++) {
+            int index = (rb->tail + i + j) % rb->size;
+            if (rb->buffer[index] != pattern[j]) {
+                match = 0;
+                break;
+            }
+        }
+        if (match) {
+            return i; // 返回匹配的起始位置
+        }
+    }
+
+    return -1; // 未找到匹配
+}
+
+int by_ringbuf_available_data(by_ringbuf_t *rb) {
+    if (rb->is_full) {
+        return rb->size;
+    }
+    return (rb->head - rb->tail + rb->size) % rb->size;
+}
+
+int by_ringbuf_available_space(by_ringbuf_t *rb) {
+    return rb->size - by_ringbuf_available_data(rb);
+}
+
+// 调试函数：打印环形缓冲区中的数据及其序号
+void by_ringbuf_debug_print(by_ringbuf_t *rb) {
+    int available_data = by_ringbuf_available_data(rb);
+    if (available_data == 0) {
+        printf("Ring buffer is empty.\n");
+        return;
+    }
+
+    printf("Ring buffer content (size: %d, available data: %d):\n", rb->size, available_data);
+    for (int i = 0; i < available_data; i++) {
+        int index = (rb->tail + i) % rb->size;
+        printf("[%04d] 0x%02X\n", i, rb->buffer[index]);
+    }
+}
\ No newline at end of file
diff --git a/hx_ringbuffer.h b/hx_ringbuffer.h
new file mode 100644
index 0000000..8577a35
--- /dev/null
+++ b/hx_ringbuffer.h
@@ -0,0 +1,46 @@
+#ifndef _BY_RINGBUF_H__
+#define _BY_RINGBUF_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+
+// 定义宏来选择内存分配方式
+// 如果定义了 BY_RINGBUF_STATIC_ALLOC，则使用预先分配的内存
+// 否则使用 malloc 动态分配内存
+// #define BY_RINGBUF_STATIC_ALLOC
+
+#define BY_RINGBUF_STATIC_BUFFER_SIZE (8192)
+
+typedef struct {
+    uint8_t *buffer;    // 缓冲区指针
+    int size;           // 缓冲区大小
+    int head;           // 写指针
+    int tail;           // 读指针
+    bool is_full;       // 缓冲区是否已满
+} by_ringbuf_t;
+
+// 初始化环形缓冲区
+extern int by_ringbuf_init(by_ringbuf_t *rb, int size);
+
+// 释放环形缓冲区
+extern void by_ringbuf_free(by_ringbuf_t *rb);
+
+// 向缓冲区追加数据
+extern int by_ringbuf_append(by_ringbuf_t *rb, const uint8_t *data, int len);
+
+// 从缓冲区弹出数据
+extern int by_ringbuf_pop(by_ringbuf_t *rb, uint8_t *data, int len);
+
+// 查找缓冲区中是否包含特定数据
+extern int by_ringbuf_find(by_ringbuf_t *rb, const uint8_t *pattern, int pattern_len);
+
+// 获取缓冲区中可用数据的大小
+extern int by_ringbuf_available_data(by_ringbuf_t *rb);
+
+// 获取缓冲区中空闲空间的大小
+extern int by_ringbuf_available_space(by_ringbuf_t *rb);
+
+// 调试函数：打印环形缓冲区中的数据及其序号
+extern void by_ringbuf_debug_print(by_ringbuf_t *rb);
+
+#endif // _BY_RINGBUF_H__
\ No newline at end of file
diff --git a/jpeg_corrupt_test.py b/jpeg_corrupt_test.py
new file mode 100644
index 0000000..602eb94
--- /dev/null
+++ b/jpeg_corrupt_test.py
@@ -0,0 +1,81 @@
+import cv2
+import numpy as np
+
+def corrupt_data(data, corruption_type='modify', severity=1):
+    """
+    对二进制数据进行损坏
+    :param data: 原始二进制数据
+    :param corruption_type: 损坏类型 ('modify', 'shift', 'loss')
+    :param severity: 损坏严重程度 (1-10)
+    :return: 损坏后的二进制数据
+    """
+    data = bytearray(data)  # 转换为可变的 bytearray
+    length = len(data)
+    
+    if corruption_type == 'modify':
+        # 修改部分数据
+        for i in range(severity * 5):
+            idx = np.random.randint(0, length)
+            data[idx] = np.random.randint(0, 256)
+    
+    elif corruption_type == 'shift':
+        # 数据移位
+        shift = severity * 10
+        data = data[shift:] + data[:shift]
+    
+    elif corruption_type == 'loss':
+        # 数据丢失
+        loss_start = np.random.randint(0, length - severity * 10)
+        data[loss_start:loss_start + severity * 10] = b'\x00' * (severity * 10)
+    
+    return bytes(data)
+
+def main():
+    # 打开摄像头
+    cap = cv2.VideoCapture(0)
+    
+    if not cap.isOpened():
+        print("无法打开摄像头")
+        return
+    
+    while True:
+        # 读取一帧图像
+        ret, frame = cap.read()
+        if not ret:
+            print("无法读取图像")
+            break
+        
+        frame = cv2.resize(frame, (224, 224))
+
+        # 显示原始图像
+        cv2.imshow('Original Image', frame)
+        
+        # 将图像编码为 JPEG 格式的二进制数据
+        ret, jpeg_data = cv2.imencode('.jpg', frame)
+        if not ret:
+            print("图像编码失败")
+            break
+        
+        # 对二进制数据进行损坏
+        corrupted_data = corrupt_data(jpeg_data, corruption_type='modify', severity=2)
+        
+        # 解码损坏后的二进制数据
+        corrupted_image = cv2.imdecode(np.frombuffer(corrupted_data, dtype=np.uint8), cv2.IMREAD_COLOR)
+        
+        if corrupted_image is None:
+            print("损坏后的数据无法解码")
+        else:
+            # 显示损坏后的图像
+            cv2.imshow('Corrupted Image', corrupted_image)
+        
+        # 等待用户按键
+        key = cv2.waitKey(0)
+        if key == ord('q'):  # 按下 'q' 键退出
+            break
+    
+    # 释放摄像头并关闭所有窗口
+    cap.release()
+    cv2.destroyAllWindows()
+
+if __name__ == "__main__":
+    main()
\ No newline at end of file
diff --git a/recv_test b/recv_test
new file mode 100755
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literal 0
HcmV?d00001

diff --git a/recv_test.c b/recv_test.c
new file mode 100644
index 0000000..0900bdc
--- /dev/null
+++ b/recv_test.c
@@ -0,0 +1,141 @@
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include "hx_serial.h"
+#include "hx_ringbuffer.h"
+
+#define FRAME_HEADER_1 0x55
+#define FRAME_HEADER_2 0xAA
+#define MAX_DATA_LEN 232
+#define CRC32_LEN 4
+#define FRAME_HEADER_LEN 2
+#define FRAME_SEQ_LEN 1
+#define DATA_LEN_LEN 1
+#define FRAME_OVERHEAD (FRAME_HEADER_LEN + FRAME_SEQ_LEN + DATA_LEN_LEN + CRC32_LEN)
+#define MAX_FRAME_LEN (FRAME_OVERHEAD + MAX_DATA_LEN)
+
+// CRC32 校验函数（假设已经实现）
+uint32_t crc32(const uint8_t *data, int len);
+
+// 解析一帧数据
+int parse_frame(by_ringbuf_t *ringbuf, uint8_t *output_data, int *output_len) {
+    uint8_t frame[MAX_FRAME_LEN];
+    int available_data = by_ringbuf_available_data(ringbuf);
+    // printf("Available data: %d\n", available_data);
+    // 检查是否有足够的数据解析一帧
+    if (available_data < FRAME_OVERHEAD) {
+        return -1; // 数据不足，无法解析
+    }else{
+        // by_ringbuf_debug_print(ringbuf);
+    }
+
+    // 查找帧头
+    uint8_t header[2] = {FRAME_HEADER_1, FRAME_HEADER_2};
+    int header_pos = by_ringbuf_find(ringbuf, header, 2);
+    printf("Header pos: %d\n", header_pos);
+    if (header_pos < 0) {
+        return -1; // 没有找到帧头
+    }
+
+    // 弹出帧头之前的数据
+    by_ringbuf_pop(ringbuf, frame, header_pos);
+
+    // 检查是否有足够的数据解析一帧
+    if (by_ringbuf_available_data(ringbuf) < MAX_FRAME_LEN) {
+        return -1; // 数据不足，无法解析
+    }
+
+    // 读取帧数据
+    by_ringbuf_pop(ringbuf, frame, MAX_FRAME_LEN);
+
+    // 解析帧序号、有效数据长度、数据段和 CRC32
+    uint8_t seq = frame[FRAME_HEADER_LEN];
+    uint8_t valid_data_len = frame[FRAME_HEADER_LEN + FRAME_SEQ_LEN];
+    uint8_t *data_segment = &frame[FRAME_HEADER_LEN + FRAME_SEQ_LEN + DATA_LEN_LEN];
+    uint32_t received_crc = *(uint32_t *)&frame[FRAME_HEADER_LEN + FRAME_SEQ_LEN + DATA_LEN_LEN + MAX_DATA_LEN];
+
+    printf("Received frame: %d, valid_data_len: %d, received_crc: %08X\n", seq, valid_data_len, received_crc);
+
+    // // 计算 CRC32 校验
+    // uint32_t calculated_crc = crc32(data_segment, valid_data_len);
+    // if (received_crc != calculated_crc) {
+    //     return -1; // CRC 校验失败，丢弃该帧
+    // }
+
+    // 将有效数据拼接到输出缓冲区
+    memcpy(&output_data[*output_len], data_segment, valid_data_len);
+    *output_len += valid_data_len;
+
+    // for(int i = 0; i < valid_data_len; i++){
+    //     printf("0x%02X ", data_segment[i]);
+    // }
+
+    // 判断是否为最后一帧
+    if (valid_data_len < MAX_DATA_LEN) {
+        return 1; // 最后一帧，解析完成
+    }
+
+    return 0; // 成功解析一帧，但可能还有更多帧
+}
+
+// 边读取边解析串口数据
+int parse_serial_data(by_serial_t *serial_port, by_ringbuf_t *ringbuf, uint8_t *output_data, int *output_len) {
+    uint8_t buffer[MAX_FRAME_LEN];
+    int ret;
+
+    // 从串口读取数据到环形缓冲区
+    ret = by_serial_read(serial_port, buffer, MAX_FRAME_LEN);
+    if (ret > 0) {
+        by_ringbuf_append(ringbuf, buffer, ret);
+    }
+
+    // 尝试解析环形缓冲区中的数据
+    while (1) {
+        int parse_result = parse_frame(ringbuf, output_data, output_len);
+        if (parse_result == 1) {
+            // printf("Parsed data length: %d\n", *output_len);
+            return 0; // 解析完成
+        } else if (parse_result == -1) {
+            // printf("Failed to parse frame\n");
+            break; // 数据不足或解析失败，退出循环
+        }
+    }
+
+    return -1; // 未找到完整帧
+}
+
+// 示例 CRC32 校验函数（需要根据实际情况实现）
+uint32_t crc32(const uint8_t *data, int len) {
+    // 这里实现 CRC32 校验算法
+    // 例如使用查表法或其他方法计算 CRC32
+    return 0; // 返回计算出的 CRC32 值
+}
+
+int main() {
+    by_serial_t serial_port;
+    by_ringbuf_t ringbuf;
+    uint8_t output_data[4096];
+    int output_len = 0;
+
+    // 初始化串口和环形缓冲区
+    by_serial_init(&serial_port, "/dev/ttyUSB1");
+    by_ringbuf_init(&ringbuf, 4096);
+
+    // 边读取边解析串口数据
+    while (1) {
+        if (parse_serial_data(&serial_port, &ringbuf, output_data, &output_len) == 0) {
+            printf("Parsed data length: %d\n", output_len);
+            // 处理解析后的数据
+            break; // 解析完成，退出循环
+        } else {
+            // printf("Waiting for more data...\n");
+        }
+
+        usleep(1000);
+    }
+
+    // 释放资源
+    by_ringbuf_free(&ringbuf);
+    return 0;
+}
\ No newline at end of file
diff --git a/serial_data.txt b/serial_data.txt
new file mode 100644
index 0000000..a9513cf
--- /dev/null
+++ b/serial_data.txt
@@ -0,0 +1 @@
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\ No newline at end of file
diff --git a/serial_module.c b/serial_module.c
new file mode 100644
index 0000000..eb92914
--- /dev/null
+++ b/serial_module.c
@@ -0,0 +1,262 @@
+#define PY_SSIZE_T_CLEAN
+#include <Python.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <zlib.h> // 引入 zlib 库
+#include <fec.h>  // 引入 libfec 库
+#include "hx_serial.h"
+#include "hx_ringbuffer.h"
+#include <pthread.h> // 引入 pthread 库
+
+// 宏定义
+#define USE_FEC
+#ifdef USE_FEC
+#define FEC_SIZE 32 // 前向纠错冗余数据大小
+#else
+#define FEC_SIZE 0 // 前向纠错冗余数据大小
+#endif
+#define FRAME_HEADER 0xAA55                                             // 帧头
+#define FRAME_SIZE (240)                                                // 每帧大小
+#define HEADER_SIZE (4)                                                 // 帧头 + 帧序号 + 数据长度
+#define CHECKSUM_SIZE (4)                                               // CRC32 校验和大小（4 字节）
+#define DATA_SIZE (FRAME_SIZE - HEADER_SIZE - CHECKSUM_SIZE - FEC_SIZE) // 数据段大小
+#define RING_BUFFER_SIZE (1024 * 10)                                    // 环形缓冲区大小 - default 10KB
+#define QUEUE_MAX_SIZE 1024                                             // 队列最大容量
+
+// 全局变量
+static by_serial_t serial_port;
+static by_ringbuf_t ring_buffer;
+static uint8_t send_buffer[FRAME_SIZE];
+static uint8_t frame_counter = 0;
+static uint8_t data_len = 0;
+
+// 定义队列结构体
+typedef struct {
+    uint8_t *data;
+    int length;
+} FrameData;
+
+// 队列相关定义
+static FrameData frame_queue[QUEUE_MAX_SIZE]; // 存储接收到的数据帧
+static int queue_head = 0;                   // 队列头指针
+static int queue_tail = 0;                   // 队列尾指针
+static pthread_mutex_t queue_mutex = PTHREAD_MUTEX_INITIALIZER; // 保护队列的互斥锁
+static bool stop_receiving = false;          // 控制接收线程停止的标志
+
+// 前向声明
+void *receive_thread_func(void *arg);
+
+// 计算 CRC32 校验和
+uint32_t calculate_crc32(const uint8_t *data, size_t length) {
+    return crc32(0, data, length);
+}
+
+// 解析一帧数据
+int parse_frame(by_ringbuf_t *ringbuf, uint8_t *output_data, int *output_len) {
+    uint8_t frame[FRAME_SIZE];
+    int available_data = by_ringbuf_available_data(ringbuf);
+
+    // 检查是否有足够的数据解析一帧
+    if (available_data < HEADER_SIZE + CHECKSUM_SIZE + FEC_SIZE) {
+        return -1; // 数据不足，无法解析
+    }
+
+    // 查找帧头
+    uint16_t header = FRAME_HEADER;
+    int header_pos = by_ringbuf_find(ringbuf, (uint8_t *)&header, 2);
+    if (header_pos < 0) {
+        return -1; // 没有找到帧头
+    }
+
+    // 弹出帧头之前的数据
+    by_ringbuf_pop(ringbuf, frame, header_pos);
+
+    // 检查是否有足够的数据解析一帧
+    if (by_ringbuf_available_data(ringbuf) < FRAME_SIZE) {
+        return -1; // 数据不足，无法解析
+    }
+
+    // 读取帧数据
+    by_ringbuf_pop(ringbuf, frame, FRAME_SIZE);
+
+    // 解析帧序号、有效数据长度、数据段和 CRC32
+    uint8_t seq = frame[2];
+    uint8_t valid_data_len = frame[2 + 1];
+    uint8_t *data_segment = &frame[2 + 1 + 1];
+    uint32_t received_crc = *(uint32_t *)&frame[2 + 1 + 1 + DATA_SIZE];
+
+    // 计算 CRC32 校验
+    uint32_t calculated_crc = calculate_crc32(frame, HEADER_SIZE + DATA_SIZE + FEC_SIZE);
+    if (received_crc != calculated_crc) {
+        printf("CRC mismatch! Expected: %08X, Received: %08X\n", calculated_crc, received_crc);
+        return -1; // CRC 校验失败，丢弃该帧
+    }
+
+    // 将有效数据拼接到输出缓冲区
+    memcpy(&output_data[*output_len], data_segment, valid_data_len);
+    *output_len += valid_data_len;
+
+    // 判断是否为最后一帧
+    if (valid_data_len < DATA_SIZE) {
+        printf("Received last frame!\n");
+        return 1; // 最后一帧，解析完成
+    }
+    return 0; // 成功解析一帧，但可能还有更多帧
+}
+
+// 接收线程函数
+void *receive_thread_func(void *arg) {
+    while (!stop_receiving) {
+        uint8_t output_data[8192];
+        int output_len = 0;
+
+        // 从串口读取数据到环形缓冲区
+        uint8_t buffer[FRAME_SIZE];
+        int ret = by_serial_read(&serial_port, buffer, FRAME_SIZE);
+        if (ret > 0) {
+            by_ringbuf_append(&ring_buffer, buffer, ret);
+        }
+
+        // 尝试解析环形缓冲区中的数据
+        while (1) {
+            int parse_result = parse_frame(&ring_buffer, output_data, &output_len);
+            if (parse_result == 1) {
+                // 将解析后的数据放入队列
+                pthread_mutex_lock(&queue_mutex);
+                if ((queue_tail + 1) % QUEUE_MAX_SIZE != queue_head) { // 队列未满
+                    frame_queue[queue_tail].data = malloc(output_len);
+                    memcpy(frame_queue[queue_tail].data, output_data, output_len);
+                    frame_queue[queue_tail].length = output_len;
+                    queue_tail = (queue_tail + 1) % QUEUE_MAX_SIZE;
+                } else {
+                    printf("Queue is full, dropping frame!\n");
+                }
+                pthread_mutex_unlock(&queue_mutex);
+                break;
+            } else if (parse_result == -1) {
+                break; // 数据不足或解析失败，退出循环
+            }
+        }
+
+        usleep(1000); // 避免占用过多 CPU
+    }
+    return NULL;
+}
+
+// 初始化串口
+static PyObject *serial_init(PyObject *self, PyObject *args) {
+    const char *dev_name;
+    if (!PyArg_ParseTuple(args, "s", &dev_name)) {
+        return NULL;
+    }
+
+    if (by_serial_init(&serial_port, dev_name) != 0) {
+        PyErr_SetString(PyExc_IOError, "Failed to initialize serial port");
+        return NULL;
+    }
+
+    // 初始化环形缓冲区
+    if (by_ringbuf_init(&ring_buffer, RING_BUFFER_SIZE) != 0) {
+        PyErr_SetString(PyExc_IOError, "Failed to initialize ring buffer");
+        return NULL;
+    }
+
+    // 启动接收线程
+    pthread_t receive_thread;
+    stop_receiving = false;
+    if (pthread_create(&receive_thread, NULL, receive_thread_func, NULL) != 0) {
+        PyErr_SetString(PyExc_RuntimeError, "Failed to start receive thread");
+        return NULL;
+    }
+
+    Py_RETURN_NONE;
+}
+
+// 发送数据
+static PyObject *serial_send(PyObject *self, PyObject *args) {
+    const char *data;
+    Py_ssize_t length;
+    if (!PyArg_ParseTuple(args, "s#", &data, &length)) {
+        return NULL;
+    }
+
+    size_t offset = 0;
+    while (offset < length) {
+        memset(send_buffer, 0, FRAME_SIZE);
+
+        // 构造帧头
+        uint16_t header = FRAME_HEADER;
+        memcpy(send_buffer, &header, 2);
+
+        // 构造帧序号和数据长度
+        memcpy(send_buffer + 2, &frame_counter, 1);
+        if (length - offset > DATA_SIZE) {
+            data_len = DATA_SIZE;
+        } else {
+            data_len = length - offset;
+        }
+        memcpy(send_buffer + 3, &data_len, 1);
+
+        // 拷贝该帧对应数据段
+        memcpy(send_buffer + HEADER_SIZE, data + offset, data_len);
+
+        // 计算 CRC32 校验和
+        uint32_t crc = calculate_crc32(send_buffer, HEADER_SIZE + DATA_SIZE + FEC_SIZE);
+        memcpy(send_buffer + HEADER_SIZE + DATA_SIZE + FEC_SIZE, &crc, CHECKSUM_SIZE);
+
+        // 发送帧
+        if (by_serial_write(&serial_port, (const char *)send_buffer, FRAME_SIZE) != 0) {
+            PyErr_SetString(PyExc_IOError, "Failed to send data over serial port");
+            return NULL;
+        }
+
+        offset += DATA_SIZE;
+        frame_counter++;
+        usleep(80000);
+    }
+
+    frame_counter = 0;
+    Py_RETURN_NONE;
+}
+
+// 接收数据
+static PyObject *serial_receive(PyObject *self, PyObject *args) {
+    pthread_mutex_lock(&queue_mutex);
+    if (queue_head == queue_tail) {
+        pthread_mutex_unlock(&queue_mutex);
+        PyErr_SetString(PyExc_IOError, "No data available in the queue");
+        return NULL;
+    }
+
+    // 获取队列中最早的数据包
+    FrameData frame = frame_queue[queue_head];
+    queue_head = (queue_head + 1) % QUEUE_MAX_SIZE;
+    pthread_mutex_unlock(&queue_mutex);
+
+    // 返回解析后的数据
+    PyObject *result = Py_BuildValue("y#", frame.data, frame.length);
+    free(frame.data); // 释放内存
+    return result;
+}
+
+// 模块方法表
+static PyMethodDef SerialMethods[] = {
+    {"init", serial_init, METH_VARARGS, "Initialize serial port"},
+    {"send", serial_send, METH_VARARGS, "Send data over serial port"},
+    {"receive", serial_receive, METH_VARARGS, "Receive data from serial port"},
+    {NULL, NULL, 0, NULL}};
+
+// 模块定义
+static struct PyModuleDef serialmodule = {
+    PyModuleDef_HEAD_INIT,
+    "serial_module",
+    NULL,
+    -1,
+    SerialMethods};
+
+// 模块初始化函数
+PyMODINIT_FUNC PyInit_serial_module(void) {
+    return PyModule_Create(&serialmodule);
+}
\ No newline at end of file
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diff --git a/serial_module_bk.c b/serial_module_bk.c
new file mode 100644
index 0000000..39e749e
--- /dev/null
+++ b/serial_module_bk.c
@@ -0,0 +1,269 @@
+#define PY_SSIZE_T_CLEAN
+#include <Python.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <zlib.h> // 引入 zlib 库
+#include <fec.h>  // 引入 libfec 库
+#include "hx_serial.h"
+#include "hx_ringbuffer.h"
+
+// #define USE_FEC
+
+#ifdef USE_FEC
+#define FEC_SIZE 32 // 前向纠错冗余数据大小
+#else
+#define FEC_SIZE 0 // 前向纠错冗余数据大小
+#endif
+#define FRAME_HEADER 0xAA55                                             // 帧头
+#define FRAME_SIZE (240)                                                // 每帧大小
+#define HEADER_SIZE (4)                                                 // 帧头 + 帧序号 + 数据长度
+#define CHECKSUM_SIZE (4)                                               // CRC32 校验和大小（4 字节）
+#define DATA_SIZE (FRAME_SIZE - HEADER_SIZE - CHECKSUM_SIZE - FEC_SIZE) // 数据段大小
+#define RING_BUFFER_SIZE (1024 * 10)                                    // 环形缓冲区大小 - default 10KB
+
+// 全局变量：串口设备和发送缓冲区
+static by_serial_t serial_port;
+static by_ringbuf_t ring_buffer;
+static uint8_t send_buffer[FRAME_SIZE];
+static uint8_t send_buffer_test[FRAME_SIZE];
+static uint8_t frame_counter = 0;
+static uint8_t data_len = 0;
+
+// 计算 CRC32 校验和
+uint32_t calculate_crc32(const uint8_t *data, size_t length) {
+    return crc32(0, data, length);
+}
+
+// 前向纠错编码
+void fec_encode(uint8_t *data, size_t data_length, uint8_t *fec_data) {
+    encode_rs_8(data, fec_data, 0);
+}
+
+// 前向纠错解码
+int fec_decode(uint8_t *data, size_t data_length, uint8_t *fec_data) {
+    return decode_rs_8(data, (int *)fec_data, 0, 0);
+}
+
+// 解析一帧数据
+int parse_frame(by_ringbuf_t *ringbuf, uint8_t *output_data, int *output_len) {
+    uint8_t frame[FRAME_SIZE];
+    int available_data = by_ringbuf_available_data(ringbuf);
+
+    // 检查是否有足够的数据解析一帧
+    if (available_data < HEADER_SIZE + CHECKSUM_SIZE + FEC_SIZE) {
+        return -1; // 数据不足，无法解析
+    }
+
+    // 查找帧头
+    uint16_t header = FRAME_HEADER;
+    int header_pos = by_ringbuf_find(ringbuf, (uint8_t *)&header, 2);
+    if (header_pos < 0) {
+        return -1; // 没有找到帧头
+    }
+
+    // 弹出帧头之前的数据
+    by_ringbuf_pop(ringbuf, frame, header_pos);
+
+    // 检查是否有足够的数据解析一帧
+    if (by_ringbuf_available_data(ringbuf) < FRAME_SIZE) {
+        return -1; // 数据不足，无法解析
+    }
+
+    // 读取帧数据
+    by_ringbuf_pop(ringbuf, frame, FRAME_SIZE);
+
+    // 解析帧序号、有效数据长度、数据段和 CRC32
+    uint8_t seq = frame[2];
+    uint8_t valid_data_len = frame[2 + 1];
+    uint8_t *data_segment = &frame[2 + 1 + 1];
+    uint32_t received_crc = *(uint32_t *)&frame[2 + 1 + 1 + DATA_SIZE];
+
+    printf("Received frame: %d, valid_data_len: %d, received_crc: %08X\n", seq, valid_data_len, received_crc);
+
+    for(uint8_t i = 0; i < FRAME_SIZE; i++) {
+        printf("%02X ", frame[i]);
+    }
+
+    printf("\n");
+
+    // 计算 CRC32 校验
+    // uint32_t calculated_crc = calculate_crc32(data_segment, valid_data_len);
+    uint32_t calculated_crc = calculate_crc32(frame, HEADER_SIZE + DATA_SIZE + FEC_SIZE);
+    if (received_crc != calculated_crc) {
+        printf("CRC mismatch! Expected: %08X, Received: %08X\n", calculated_crc, received_crc);
+        return -1; // CRC 校验失败，丢弃该帧
+    }
+
+    // 将有效数据拼接到输出缓冲区
+    memcpy(&output_data[*output_len], data_segment, valid_data_len);
+    *output_len += valid_data_len;
+
+    // 判断是否为最后一帧
+    if (valid_data_len < DATA_SIZE) {
+        printf("Received last frame!\n");
+        return 1; // 最后一帧，解析完成
+    }
+
+    return 0; // 成功解析一帧，但可能还有更多帧
+}
+
+// 边读取边解析串口数据
+int parse_serial_data(by_serial_t *serial_port, by_ringbuf_t *ringbuf, uint8_t *output_data, int *output_len) {
+    uint8_t buffer[FRAME_SIZE];
+    int ret;
+
+    // 从串口读取数据到环形缓冲区
+    ret = by_serial_read(serial_port, buffer, FRAME_SIZE);
+    if (ret > 0) {
+        by_ringbuf_append(ringbuf, buffer, ret);
+    }
+
+    // 尝试解析环形缓冲区中的数据
+    while (1) {
+        int parse_result = parse_frame(ringbuf, output_data, output_len);
+        if (parse_result == 1) {
+            return 0; // 解析完成
+        } else if (parse_result == -1) {
+            break; // 数据不足或解析失败，退出循环
+        }
+    }
+
+    return -1; // 未找到完整帧
+}
+
+// 初始化串口
+static PyObject *serial_init(PyObject *self, PyObject *args) {
+    const char *dev_name;
+
+    if (!PyArg_ParseTuple(args, "s", &dev_name)) {
+        return NULL;
+    }
+
+    if (by_serial_init(&serial_port, dev_name) != 0) {
+        PyErr_SetString(PyExc_IOError, "Failed to initialize serial port");
+        return NULL;
+    }
+
+    // 初始化环形缓冲区
+    if (by_ringbuf_init(&ring_buffer, RING_BUFFER_SIZE) != 0) {
+        PyErr_SetString(PyExc_IOError, "Failed to initialize ring buffer");
+        return NULL;
+    }
+
+    frame_counter = 0; // 重置帧计数器
+    Py_RETURN_NONE;
+}
+
+// 发送数据
+static PyObject *serial_send(PyObject *self, PyObject *args) {
+    const char *data;
+    Py_ssize_t length;
+
+    if (!PyArg_ParseTuple(args, "s#", &data, &length)) {
+        return NULL;
+    }
+
+    printf("Send data len = %ld\n", length);
+
+    size_t offset = 0;
+    uint8_t idx = 0;
+    while (offset < length) {
+        memset(send_buffer, 0, FRAME_SIZE);
+
+        // 构造帧头
+        uint16_t header = FRAME_HEADER;
+        memcpy(send_buffer, &header, 2);
+
+        // 构造帧序号
+        memcpy(send_buffer + 2, &frame_counter, 1);
+
+        // 构造数据长度
+        if (length - offset > DATA_SIZE) {
+            data_len = DATA_SIZE;
+        } else {
+            data_len = length - offset;
+        }
+        memcpy(send_buffer + 3, &data_len, 1);
+
+        // 拷贝该帧对应数据段
+        memcpy(send_buffer + HEADER_SIZE, data + offset, data_len);
+
+#ifdef USE_FEC
+        // 将 FEC 数据附加到帧中
+        memcpy(send_buffer + HEADER_SIZE + DATA_SIZE, fec_data, 32);
+#endif
+
+        // 计算 CRC32 校验和
+        uint32_t crc = calculate_crc32(send_buffer, HEADER_SIZE + DATA_SIZE + FEC_SIZE);
+        memcpy(send_buffer + HEADER_SIZE + DATA_SIZE + FEC_SIZE, &crc, CHECKSUM_SIZE);
+
+        for(uint8_t i = 0; i < FRAME_SIZE; i++) {
+            printf("%02x ", send_buffer[i]);
+        }
+
+        // 发送帧
+        if (by_serial_write(&serial_port, (const char *)send_buffer, FRAME_SIZE) != 0) {
+            PyErr_SetString(PyExc_IOError, "Failed to send data over serial port");
+            return NULL;
+        }
+
+        offset += DATA_SIZE;
+        frame_counter++;
+
+        printf("* frame [%d]\n", frame_counter);
+
+        // usleep(50000);
+        usleep(80000);
+    }
+
+    frame_counter = 0;
+
+    printf("****************\n");
+
+    Py_RETURN_NONE;
+}
+
+// 接收数据
+static PyObject *serial_receive(PyObject *self, PyObject *args) {
+    uint8_t output_data[8192];
+    int output_len = 0;
+    int timeout = 5000; // 超时时间，单位为毫秒
+    int elapsed_time = 0;
+
+    // TODO 增加当接收新帧时的处理
+    while (elapsed_time < timeout) {
+        if (parse_serial_data(&serial_port, &ring_buffer, output_data, &output_len) == 0) {
+            // 返回解析后的数据
+            printf("Parsed data length: %d\n", output_len);
+            return Py_BuildValue("y#", output_data, output_len);
+        }
+        usleep(1000); // 等待 1 毫秒
+        elapsed_time += 1;
+    }
+
+    // 超时未接收到完整帧
+    PyErr_SetString(PyExc_TimeoutError, "Timeout while waiting for data");
+    return NULL;
+}
+
+// 模块方法表
+static PyMethodDef SerialMethods[] = {
+    {"init", serial_init, METH_VARARGS, "Initialize serial port"},
+    {"send", serial_send, METH_VARARGS, "Send data over serial port"},
+    {"receive", serial_receive, METH_VARARGS, "Receive data from serial port"},
+    {NULL, NULL, 0, NULL}};
+
+// 模块定义
+static struct PyModuleDef serialmodule = {
+    PyModuleDef_HEAD_INIT,
+    "serial_module",
+    NULL,
+    -1,
+    SerialMethods};
+
+// 模块初始化函数
+PyMODINIT_FUNC PyInit_serial_module(void) {
+    return PyModule_Create(&serialmodule);
+}
\ No newline at end of file
diff --git a/test_recv.jpg b/test_recv.jpg
new file mode 100644
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HcmV?d00001

diff --git a/test_recv.py b/test_recv.py
new file mode 100644
index 0000000..6ef147c
--- /dev/null
+++ b/test_recv.py
@@ -0,0 +1,21 @@
+import serial_module
+import cv2
+import numpy as np
+
+serial_module.init("/dev/ttyUSB1")
+while True:
+    try:
+        data = serial_module.receive()
+        # print("Received data:", data)
+        if data:
+            frame = np.frombuffer(data, np.uint8)
+            # 将数据转换为图像
+            image = cv2.imdecode(frame, cv2.IMREAD_COLOR)
+            # 显示图像
+            cv2.imshow('Received Image', image)
+            cv2.imwrite('test_recv.jpg', image)
+            # 等待按键输入
+            if cv2.waitKey(1) & 0xFF == ord('q'):
+                break
+    except Exception as e:
+        print("Error:", e)
\ No newline at end of file
diff --git a/test_send.jpg b/test_send.jpg
new file mode 100644
index 0000000000000000000000000000000000000000..469e20876937ee695c673f619d39c63f1eca3bb5
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diff --git a/test_send.py b/test_send.py
new file mode 100644
index 0000000..3eddd33
--- /dev/null
+++ b/test_send.py
@@ -0,0 +1,43 @@
+import serial_module
+import cv2
+import time
+
+# 初始化串口
+serial_module.init("/dev/ttyUSB0")
+
+cap = cv2.VideoCapture(0)
+
+# while True:
+for _ in range(100):
+    time_via = time.time()
+    ret, frame = cap.read()
+    frame = cv2.resize(frame, (224,224))
+    cv2.imshow('frame',frame)
+    frame_jpg = cv2.imencode('.jpg', frame, [int(cv2.IMWRITE_JPEG_QUALITY), 50])[1].tobytes()
+    print(len(frame_jpg))
+    serial_module.send(frame_jpg)
+    cv2.imwrite('test_send.jpg', frame)
+    # # 创建一个大小为 3.5K 的二进制数据
+    # file_size = int(3.5 * 1024)
+    # empty_binary_data = bytearray(file_size)
+    # empty_binary_data = bytes(empty_binary_data)
+
+    # # 发送数据
+    # serial_module.send(empty_binary_data)
+
+    print(time.time() - time_via)
+    time.sleep(4)
+    if cv2.waitKey(1) & 0xFF == ord('q'):
+        break
+
+# # 发送数据
+# data = b"Your binary data here"  # 替换为你的二进制数据
+# serial_module.send(data)
+
+# # 接收数据
+# result = serial_module.receive()
+# if result:
+#     frame_number, pdu, rssi = result
+#     print(f"Frame Number: {frame_number}")
+#     print(f"PDU: {pdu}")
+#     print(f"RSSI: {rssi}")
\ No newline at end of file
diff --git a/tool_capserial b/tool_capserial
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diff --git a/tool_capserial.c b/tool_capserial.c
new file mode 100644
index 0000000..e42bfd0
--- /dev/null
+++ b/tool_capserial.c
@@ -0,0 +1,77 @@
+#include "hx_serial.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define BUFFER_SIZE 1024
+#define OUTPUT_FILE "serial_data.txt"
+
+int main() {
+    by_serial_t serial_port;
+    char buffer[BUFFER_SIZE];
+    int bytes_read;
+    int total_bytes_read = 0;
+    FILE *output_file;
+
+    // 初始化串口
+    if (by_serial_init(&serial_port, "/dev/ttyUSB1") != 0) {
+        fprintf(stderr, "Failed to initialize serial port\n");
+        return -1;
+    }
+
+    by_serial_set_baudrate(&serial_port, 115200);
+    by_serial_set_parity(&serial_port, 8, 1, 'N');
+
+    // 打开输出文件
+    output_file = fopen(OUTPUT_FILE, "wb");
+    if (output_file == NULL) {
+        fprintf(stderr, "Failed to open output file\n");
+        close(serial_port.fd);
+        return -1;
+    }
+
+    printf("Reading from serial port. Press ENTER to stop...\n");
+
+    // 循环读取串口数据
+    while (1) {
+        // // 检查用户输入
+        // if (fgetc(stdin) == '\n') {
+        //     break;
+        // }
+
+        // 检查缓冲区中是否有数据
+        int used_len = by_serial_get_used_buffer_len(&serial_port);
+        if (used_len <= 0) {
+            usleep(100000); // 等待 100ms
+            // printf("no data\n");
+            continue;
+        }else{
+            printf("used_len = %d; ", used_len);
+        }
+
+        // 读取数据
+        bytes_read = by_serial_read(&serial_port, buffer, BUFFER_SIZE);
+        if (bytes_read < 0) {
+            fprintf(stderr, "Error reading from serial port\n");
+            break;
+        }
+
+        total_bytes_read += bytes_read;
+        printf("Total bytes read: %d\n", total_bytes_read);
+
+        // 将数据以 ASCII 格式写入文件
+        // fwrite(buffer, 1, bytes_read, output_file);
+        for (int i = 0; i < bytes_read; i++) {
+            fprintf(output_file, "%02X ", (unsigned char)buffer[i]);
+        }
+        fprintf(stderr, "Wrote %d bytes to file\n", bytes_read);
+    }
+
+    // 关闭文件和串口
+    fclose(output_file);
+    close(serial_port.fd);
+
+    printf("Data capture stopped. Data saved to %s\n", OUTPUT_FILE);
+    return 0;
+}
\ No newline at end of file
diff --git a/tool_ckframe.py b/tool_ckframe.py
new file mode 100644
index 0000000..566d446
--- /dev/null
+++ b/tool_ckframe.py
@@ -0,0 +1,33 @@
+def calculate_frame_lengths(file_content):
+    # 将文件内容转换为十六进制字节列表
+    hex_data = file_content.split()
+    
+    frame_lengths = []
+    frame_start = 0
+    
+    # 遍历字节列表，查找帧头
+    for i in range(len(hex_data) - 1):
+        if hex_data[i] == '55' and hex_data[i + 1] == 'AA':
+            # 找到帧头，计算当前帧的长度
+            if frame_start != 0:
+                frame_length = i - frame_start
+                frame_lengths.append(frame_length)
+            frame_start = i
+    
+    # 处理最后一帧
+    if frame_start != 0:
+        frame_length = len(hex_data) - frame_start
+        frame_lengths.append(frame_length)
+    
+    return frame_lengths
+
+# 读取文件内容
+with open('serial_data.txt', 'r') as file:
+    file_content = file.read()
+
+# 计算每一帧的长度
+frame_lengths = calculate_frame_lengths(file_content)
+
+# 输出每一帧的长度
+for i, length in enumerate(frame_lengths):
+    print(f"Frame {i + 1}: Length = {length} bytes")
\ No newline at end of file