Introduction to RT thread env tool (learning notes)

In this paper, the reference 《RT-Thread Document center ——Env User's Manual 》

Env brief introduction

Env yes RT-Thread Development aids launched , For based on RT-Thread Project engineering of operating system , Provides a compilation build environment 、 Graphical system configuration and software package management function .

It's built in menuconfig Provides an easy-to-use configuration clipping tool , But for the kernel 、 Free tailoring of components and software packages , Make the system build in the way of building blocks .

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download Env

Env The tool contains RT-Thread Source code development and compilation environment and software package management system . Download address ：https://www.rt-thread.org/page/download.html

【 Be careful 】

• Env The software package management function of requires Git Support for ,Git Download address ：https://git-scm.com/downloads, At the same time Git Add to environment variable .
• In the pathname in the tool environment , Chinese characters or spaces cannot appear .

Env Start of

There are two ways to start Env, One is to open it directly env.exe, If the opening fails, you can try to use env.bat（ At this time, the working path is Env Software Directory ）; The other is to open through the right-click menu , But you need to first Env Add to right-click menu , For specific operations, please refer to the following figure ：

picture source ：《RT-Thread Document center ——Env User's Manual 》

Use Env compile BSP

scons yes RT-Thread Compilation and construction tools used , have access to scons Relevant commands to compile RT-Thread .

Enter one at random RT-Thread BSP engineering , Input scons command , At this time Env The default... Will be used ARM_GCC Tool chain compilation bsp：

Compile successfully , The last step in compiling is to use arm-none-eabi-bojcopy take .elf The file is converted to .bin file （ Binary executable ）.

If using mdk/iar project , You can compile with the following command .

scons --target=iar
scons --target=mdk4
scons --target=mdk5

The figure below shows the use of scons --target=mdk5 The result of compilation , After the project link is completed , Used fromeelf take .elf The file is converted to .bin file .

and fromelf It is Keil The format conversion tool used by the software ：

Use Env To configure BSP

menuconfig It's a graphical configuration tool ,RT-Thread Use it to configure the whole system 、 tailoring .

stay bsp root directory （ Need to have Kconfig file ） Input menuconfig Command to open the graphical configuration tool ：

The functions supported by the image menu include ：RT-Thread Kernel configuration （ modify rtconfig.h）、RT-Thread Component management 、RT-Thread Online software package 、 Hardware driver configuration and external library .

Kernel configuration

One RT-Thread All kernel configurations of the project are placed in rtconfig.h in , By modifying the RT-Thread Kernel Configuration of , Can realize the modification rtconfig.h Purpose .

Component management

RT-Thread There are many tailorable components , Like the command line （msh）、 The Internet 、 Device drivers .

Package management

RT-Thread Provide a software package management platform , There are software packages provided by the official or developers . The platform provides developers with many choices of reusable software packages , This is also RT-Thread An important part of Ecology .

software package Git Warehouse ：https://github.com/RT-Thread-packages, At present （ When writing an article ） The warehouse has 128 Software package .

Can be in Env Command line input pkgs Manage package updates （menuconfig Package configuration modified in , Still need to be in Env Input pkgs --update To synchronize to the project ）.

If the local software package is not updated for a long time , The local software package may not be synchronized with the server . At this time, we can pass through Env Command line input pkgs --upgrade To solve this problem . And it's also good for Env upgrade .

Drive configuration

Here you can manage bsp Opening and closing of related drives ,

Here are the options in the on-chip peripheral driver ：

External library

In the external library, you can choose whether to use some libraries under some project directories , The following are the Pandora development board of punctual atom bsp External libraries in .

Env Tool configuration

The new version of the Env The tool includes automatic updating of software packages and automatic generation mdk/iar Project options , Not on by default . have access to menuconfig -s/–setting Command to configure .

Here is the default configuration ：

Here is the second function —— Automatically create mdk/iar engineering

When modifying menuconfig After the configuration , Must input scons --target=xxx To regenerate the project . Turn on this function , Will be quitting menuconfig when , Automatically regenerate the project , No more manual input scons Command to regenerate the project .