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README
Apache-2.0

VSF -- Versaloon Software Framework

GitHub

windows-build cmake-native-build cmake-arm-cross-build

vsf.linux windows build cmake-arm-cross-build cmake-native-build

English |

VSF全称是Versaloon Software Framework,是一个基于Apache2.0协议的开源嵌入式软件平台框架。包含了从底层硬件的hal驱动、抢占式多任务内核、各种服务和组件。全部代码使用C语言,以及面向对象的方式实现。

整体框架

目录

目录名 描述
document 文档
doxygen doxygen配置
example 示例代码
hardware VSF开发板硬件资料
patch 一些补丁(第三方库补丁等等)
script 一些工具脚本
 cmake cmake工具脚本
source VSF源代码
 component 组件(文件系统、协议栈、UI、外部芯片驱动)
 hal 硬件抽象层(芯片arch支持、芯片驱动)
 kernel 内核
 osa_service 依赖内核的软件服务组件
 service 软件服务组件
 shell “皮肤”
 utilities 基础软件工具(一些预处理功能、编译器支持、列表等等)

内核

基于事件驱动的抢占式多任务内核,支持51、8bit MCU、32/64 bit arm、riscv、x86等等各种构架的芯片。

  • 事件驱动,有事件运行,没事件休眠
  • 抢占模式下,任务切换由硬件实现,任务优先级就是硬件swi(software interrupt)的优先级
  • 不同优先级抢占,同一优先级协作
  • 可以运行在其他系统或者RTOS中,也可以运行在一个或者几个SWI中断中(和其他RTOS并存)。
  • 多种任务形式
    • 事件处理任务 -- 最小资源占用,最简配置下占用20字节ram,常用配置下占用40字节ram
    • pt任务 -- 接近独立堆栈任务开发方式的共享堆栈任务
    • 独立堆栈任务 -- 依赖libc中的setjmp库
    • fsm状态机任务
    • “皮肤”中的其他任务封装形式,比如pthread
  • 信号量、互斥量、触发器、队列等等常用IPC工具

组件

  • 合理的框架设计,软件高度可以复用
  • 尽可能提供申明式的开发方式
  • 标准化接口,第三方软件一次性移植,全平台适配
  • 软件组件/框架
    • distbus -- 分布式总线框架
    • fifo
    • heap
    • json
    • pool -- 内存池
    • stream -- 流接口
    • trace
  • 组件
    • fs -- 文件系统,支持VFS(可使用第三方的文件系统)
    • input -- 输入系统
    • mal -- 块设备
    • scsi -- SCSI设备
    • tcpip -- TCPIP协议栈以及netdrv网络设备(可使用第三方的TCPIP协议栈)
    • ui -- UI以及显示设备(可使用第三方的GUI)
    • usb -- USB主从机协议栈
    • bt -- 蓝牙协议栈(使用第三方的btstack)

硬件抽象层

  • 标准hal接口,统一API -- 比如:vsf_spi_init可以用于所有VSF中支持的SPI,包括芯片自带SPI、GPIO模拟的SPI、通过USB外扩的SPI,通过分布式总线访问的远端SPI
  • 简化开发的IP核驱动 -- 移植仅需要实现时钟、复位、中断等等IP核心之外的功能
  • 各种接口封装模板
  • 接口
    • PM
    • GPIO
    • SPI
    • I2C
    • PWM
    • ADC
    • SWI
    • USART
    • FLASH
    • USB
    • ethernet

“皮肤”

“皮肤”可以把VSF“伪装”成其他系统,使得可以直接使用基于其他系统的应用代码。

  • SDL -- 可以直接使用一些基于SDL的应用层代码
  • linux -- 可以直接使用一些基于linux的应用层代码
    • posix
    • devfs
    • socket
    • console
    • 一些lib库的实现
      • libusb
      • libgen

第三方

名字 路径 许可 链接
btstack source/component/3rd-party/btstack/raw Other https://github.com/bluekitchen/btstack
coremark source/component/3rd-party/coremark/raw Apache https://github.com/eembc/coremark
freetype source/component/3rd-party/freetype/raw FreeType https://freetype.org/
zlib source/component/3rd-party/zlib/raw zlib http://zlib.net/
nuklear source/component/3rd-party/nuklear/raw MTI https://github.com/Immediate-Mode-UI/Nuklear
nnom source/component/3rd-party/nnom/raw Apache 2.0 https://github.com/majianjia/nnom
lua source/component/3rd-party/lua/raw MIT https://www.lua.org/
lwip source/component/3rd-party/lwip/raw BSD https://savannah.nongnu.org/projects/lwip/
libpng source/component/3rd-party/libpng/raw PNG2 https://libpng.sf.net
libjpeg-turbo source/component/3rd-party/libjpeg-turbo/raw BSD https://libjpeg-turbo.org/
SDL_ttf source/shell/media/sdl2/3rd-party/SDL_ttf zlib https://hg.libsdl.org/SDL_ttf/
SDL_image source/shell/media/sdl2/3rd-party/SDL_image zlib https://hg.libsdl.org/SDL_image/
lvgl source/component/3rd-party/lvgl/raw/lvgl MIT https://lvgl.io/
lv_lib_freetype source/component/3rd-party/lvgl/extension/lv_lib_freetype/raw MIT https://lvgl.io/
CMSIS source/utilities/compiler/arm/3rd-party/CMSIS Apache 2.0 https://github.com/ARM-software/CMSIS_5
evm source/component/3rd-party/evm/raw Apache 2.0 https://github.com/scriptiot/evm
LingLongGUI source/component/3rd-party/LingLongGUI/raw Apache 2.0 https://gitee.com/gzbkey/LingLongGUI
PLOOC source/utilities/3rd-party/PLOOC/raw Apache 2.0 https://github.com/GorgonMeducer/PLOOC
mbedtls source/component/3rd-party/mbedtls/raw Apache 2.0 https://tls.mbed.org/
GuiLite source/component/3rd-party/GuiLite/raw Apache 2.0 https://github.com/idea4good/GuiLite
Segger_RTT source/component/3rd-party/segger/raw/RTT segger https://wiki.segger.com/RTT
Segger_SystemView source/component/3rd-party/segger/raw/SystemView segger https://wiki.segger.com/SystemView
nuconsole source/component/3rd-party/nuconsole/raw nuvoton https://www.nuvoton.com.cn/
AIC8800M_SDK source/hal/driver/AIC/AIC8800/vendor aic http://www.aicsemi.com/
awtk LGPL 2.1 https://www.zlg.cn/index/pub/awtk.html
littlefs source/component/3rd-party/littlefs/raw BSD https://github.com/littlefs-project/littlefs
getopt_long source/shell/sys/linux/lib/3rd-party/getopt OpenBSD https://github.com/openbsd/src
regex source/shell/sys/linux/lib/3rd-party/regex OpenBSD https://github.com/openbsd/src
fnmatch source/shell/sys/linux/lib/3rd-party/fnmatch BSD http://www.jbox.dk/sanos/source/lib/fnmatch.c.html
glob source/shell/sys/linux/lib/3rd-party/glob BSD https://github.com/cloudius-systems/musl
setjmp source/hal/arch/x86/win BSD
libtuv source/shell/sys/linux/lib/3rd-party/libtuv/raw Apache 2.0 https://github.com/Samsung/libtuv

文档

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简介

VSF全称是Versaloon Software Framework,是一个基于Apache2.0协议的开源嵌入式软件平台框架。包含了从底层硬件的hal驱动、抢占式多任务内核、各种服务和组件。全部代码使用C语言,以及面向对象的方式实现。 展开 收起
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