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pixshark's Introduction

PixShark V1.0 开发固件


1.前言

本项目采用cmake + make + arm-none-eabi-gcc 交叉编译工具链开发,下载程序到单片机使用openocd 请事先下载好对应环境
Linux环境安装
sudo apt-get install arm-none-eabi-gcc
sudo apt-get install openocd

apt下载的openocd可能版本会比较旧,无法下载H7系列,建议进入openocd官网下载最新版本源码编译

接着安装stlink驱动:

#安装依赖库
sudo apt-get install git make cmake libusb-1.0-0-dev
sudo apt-get install gcc build-essential
#下载编译
git clone https://github.com/stlink-org/stlink
cd stlink
cmake
make
#添加环境
cd bin
sudo cp st-* /usr/local/bin
cd ../lib
sudo cp *.so* /lib32
sudo cp stlink/config/udev/rules.d/49-stlinkv* /etc/udev/rules.d/

输入st-info --probe查看时候识别到stlink

Win环境安装
交叉编译器:进入ARM官网下载下载链接
openocd:下载链接
整个windows环境下工具链开发可以参考文章:参考文章

win的同学自行安装stlink驱动

项目使用make,所以需要安装mingw,无需安装Ninja作为构建工具

2.食用

win环境下需要安装Git

git clone [email protected]:Hao-Lion-ZJU/PixShark.git
mkdir build -p && cd build
#windows环境下可能需要指定构建工具,否则win下cmake会自动帮你选择nmake
#然而这不是我们期望的,所以需要 -G "Unix Makefiles"指定,Linux环境下不需要
cmake -G "Unix Makefiles" ..
#根据你CPU的最大核心数决定
make -j8
#返回主目录
cd  ..
#连接仿真器下载,项目使用STLINK,如果更换,请修改openocd.cfg中的配置
openocd -f ./openocd.cfg -c download

3.简介

设备 PixShark系列开发板

硬件 型号 参数
主控芯片 STM32H743VGT6 480MHZ,1MB Flash,1MB RAM

软件环境

  • Toolchain/IDE : cmake + make + arm-none-eabi-gcc / VSCode
  • STM32CubeMx:6.8.0
  • package version: STM32Cube FW_H7 V1.11.0
  • FreeRTOS version: 10.3.1
  • LWIP version: 2.1.2
  • CMSIS-RTOS version: 1.02

编程规范

  • APP层和设备驱动代码使用C++11进行重构,引入很多高级语言特性,同时底层部分用C混编,不影响代码性能
  • 对硬件依赖完全解耦了,可以方便以后移植到其他平台的MCU,去除了冗余代码代码也结构化逻辑更加清晰
  • 变量和函数命名方式遵循 Unix/Linux 风格
  • 不需要精确计时的任务,采用自行实现的软件定时器实现,定时精度受任务调度影响

与干端通信

  • PixSharkV1.0采用MQTT通讯协议,c++封装了LWIP自带的MQTT接口,使用更加方便
  • 具体各个设备互传数据采用JSON格式,详见doc文档

4.整体框架

文件树

PixShark/
├── bsp					(板级支持包)
├── components
│   ├──algorithm (存放常用数学算法)
│   ├── controller(存放控制器实现)
│   └── devices(存放水下机器人上设备的驱动文件)
│   ├── support(存放一些插件)
├── Core
    ├── Inc		(CUBEMX生成外设头文件)
    ├── Src		(CUBEMX生成外设源文件)
    └── Startup	(启动文件)
├── doc	(详细说明文件和记录)
├── Drivers	(CUBEMX生成HAL库驱动)
├── LWIP	(CUBEMX生成LWIP用户接口)
├── Middlewares(CUBEMX生成LWIP、FREERTOS等三方库)
├── Robot
│   ├── *_task.cpp/hpp(各个任务的处理函数文件)
├── Drivers	(CUBEMX生成HAL库驱动)
├── USB_DEVICE	(CUBEMX生成USB用户接口)
├── UserAPP	    (用户二次开发水下机器人接口)
├── openocd.cfg	(openocd配置文件,指定仿真器类型,端口等等)
├── pixshark.ioc(CUBEMX工程)
├── STM32H743VGTX_FLASH.ld(链接脚本)
└── STM32H743x.svd(CPU对应的外设地址映射表,供DEBUG查看寄存器状态时使用)
#其余文件与项目无关

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