SCM learning notes 1 -- data download and environment construction (based on Baiwen STM32F103 series tutorials)

The first 1 piece Data download 、 Environment building

Chapter one Baiwen video system and learning route

1.1 Course video changes

2011-2020： Baiwen recorded 10 Year of Linux video .
2021:
1、 For the first time Enter the field of SCM , Release single chip microcomputer courses ！
2、 Re recording Linux Course , New chips 、 New kernel , New route ！ Stand on a higher angle to achieve single chip microcomputer and Linux Of Unified ： Unity in learning ！

1.2 SCM learning route

For the study of SCM , Baiwen provides two routes . The first one is based on the information provided by the manufacturer HAL Library for development ; The second is to develop based on registers .

1.2.1 be based on HAL Library Development

HAL Kuo is ST At present, the main development mode of the company , The user calls the encapsulated function provided by the manufacturer , It can directly realize some functions , There is no need to have a deep understanding of the underlying principles , And all kinds of information 、 Lots of tutorials . Therefore, it can greatly save the program development cycle , At the same time, the portability of the program 、 It's also very stable , It is applicable to the rapid development of the project .
But because of HAL Ku helped you package everything , The user only needs to call , So development is easy to use , Low entry barrier , If you only do simple HAL Library Development , The upper limit is not high , The core competitiveness is not strong , It's not good for subsequent learning and improvement , So Baiwen focuses on the second learning route of single chip microcomputer —— Register based development .

1.2.2 Register based development

Develop single chip microcomputer , In essence, it is to configure various registers of the single chip microcomputer . Development through registers , You can have an in-depth understanding of some principles and details of the bottom layer of MCU , These are all RTOS At the heart of , It's also learning RTOS The necessary knowledge of . When you master this knowledge , You can learn all kinds of RTOS For example, Hongmeng 、rt-smart There are others RTOS, Even for u-boot Also need these basic knowledge . At present, for these systems , Baiwen has provided supporting development boards .

For the route 2 Related information 、 There are relatively few tutorials , After the tutorial is launched , Well received , Many old engineers with many years of work and development experience , Also studying this course .

1.3Linux Learning route

about Linux Innovation , Baiwen divides it into two steps , They are quick start series and various special series .

1.3.1 Quick start

For the quick start series , Learn first Linux Application basis , In learning driven development , Finally, start the project . After these three steps , You can make people right Linux The development of has a complete concept , Involving the bottom 、 The upper 、 And the overall project .

1.3.2 Various topics

When you get started , You can study various topics in depth , For example, in the drive topic , Baiwen will explain all kinds of drivers in depth .

1.4 How to choose a learning route

The course content of Baiwen is very rich , So how to choose a suitable learning route ？ Baiwen provides three learning routes , Most of the courses are free , At present, it is by Linux The driver is charged . You can go to the official website of Baiwen （www.100ask.net） View all tutorials .

Route 1： Study HAL Library Development .

Route 2： Learn the core of MCU , After mastering the core of these microcontrollers , You can learn all kinds of things according to your interests RTOS.

Route 3： If you don't want to get started with SCM , You can learn first Linux Fundamentals of application development , Learning driven , Finally, do the project . When you get started, you can learn various topics .

1.5 Course features

1.5.1 Learn SCM

Integrate the learning of SCM with Linux Learning from Unified get up .

Linux drive = Drive frame + Hardware programming

Ugly SCM program = Rough hardware programming

Excellent MCU program = software framework + Hardware programming , There will be an easily extensible framework .

Baiwen MCU program = Imitation Linux frame + Hardware programming

So Baiwen MCU program ≈ Linux drive , stay When learning SCM, you can also learn Linux At the heart of .

With LCD For example ：

stay Linux in , Divide the program into application layer and driver layer , In the driver , Two structures will be abstracted and stored separately LCD Resolution, video memory and other information .

In the single chip program , Modelled on the Linux, It also abstracts a structure similar to the above , such , When learning SCM , That's what I've learned Linux At the heart of .

So suppose you don't know SCM , When learning the single chip microcomputer course of Baiwen , Will also put Linux Some knowledge of driving has also been learned . At present, SCM courses support three development boards ：STM32F103,STM32MP157,IMX6ULL.

1.5.2 Study linux

If you already know SCM , You can learn Baiwen directly Linux Drive video , There are two development boards to support ：STM32MP157,IMX6ULL.

1、 Flexible choice

Linux drive = Drive frame + Hardware programming , So study Linux You can choose to learn driver framework or hardware programming ., You can according to your actual situation , Choose your learning direction flexibly .

If you are already familiar with hardware programming , You can learn QEMU video , It simplifies hardware operation , You can concentrate on learning the driving framework . If you want to get more practical experience , You can learn IMX6ULL、STM32MP157 video , Involving hardware programming .

2、 Exclusive services

Provide in class tests 、 Mock exam 、 Private class 、 Four services for homework after class . Baiwen will do some live broadcasts in the group from time to time according to everyone's needs , Help people learn .

Chapter two Data download

1、 For a single chip computer HAL Library Learning , You can choose whether to watch documents or videos .

Baiwen provides 100ASK_STM32F103 User manual for everyone to learn , There are some introductions of SCM and 26 A specific routine .

The video is still being recorded , Not all of them .

2、 For register learning , Baiwen has videos of the basic part （ The recording has been completed ）, Also about FreeRTOS、RT-Thread Explanation （ It has not been recorded yet ）.

2.1 Baiwen information download

For the first learning route （ be based on HAL library ） All information （ Except for the video ） All in Baidu online disk .

Download mode 1： Baidu cloud disk link ：https://pan.baidu.com/s/1Fe-SrqlFo1Xl4-1BTaWlpA password ：root

Download mode 2： Micro force synchronization The replication key is synchronized in Weili APP Use in ：B3AIVGI73TMGVTEV27EYWKMHTLCKIRU5NXTUYR35EWYI6PVNSUU47BO

For the second learning route （ Based on register ） All information （ Except for the video ） All in Git in . About Git Use , You can find it in the data download center of the official website Git A concise tutorial .

git clone https://e.coding.net/weidongshan/noos/doc_and_source_for_mcu_mpu.git

All relevant information can be found on the official website of Baiwen (www.100ask.net) Find .

1、 Enter official website , Select the data download at the top left .

2、 Select the corresponding development board

3、 Downloading data , It not only contains the materials of two learning routes , As well as GUI Of course materials .

HAL In the database , There is a development manual , There are both theoretical introduction and program explanation , You can learn according to the manual .

At present, Baiwen also launched GUI course , Use LVGL Wrote a set of GUI System , At present, relevant documents have been published , The video tutorial has not been released yet , You can learn by yourself according to the document .

Baiwen LVGL Series of tutorials ： http://download.100ask.org/gui/lvgl/100ask_lvgl.html

2.2ST Download official information

ST The information on the official website is huge , It involves many aspects and is all in English , How to quickly and accurately find the desired chip information , It's also a problem .

For one MUC for , There will be various manuals to introduce it , Among them, data manual and reference manual are particularly important , Must download . Other things like Cortex-M3/M4 Programming manual , Flash programming manual 、 Corrigendum 、 Official firmware package sample source code 、 Official firmware package user manual 、HAL Library user manual, etc , You can download according to your specific needs .

1、 Get into ST Official website , Enter the chip you want to find in the top search box .

2、 Click the found chip to enter the detailed interface .

3、 Click on documentation, Enter the document interface , There are various documentation manuals of the chip .

4、 Select the manual you want to download .

2.3 Video material

1、 Enter official website , Find the corresponding development board classification . Development board classification –>F103-PRO–>HAL Library Development –> be based on HAL Library Development .

2、 Select the corresponding video tutorial

2.4 Resource introduction of development version

100ASK_STM32F103 The resources of are shown in the figure below , Among them, the part marked in red is needed in the initial learning stage , Be sure to understand .

Here we will introduce the important red components .

1、DC The power interface ： Access 12V The power supply .

2、 Power indicator ： The power input of the development board is normal —— Light on , Input exception —— The light goes out .

3、 Power toggle switch ： Move down —— Turn off the power , Fluctuate upward —— Turn on the power .

5、 Start mode selector switch ： So called startup , Generally speaking, it means after a good program , When you restart the chip ,SYSCLK Of the 4 Rising edge ,BOOT The value of the pin will be locked . Users can use the Settings BOOT1 and BOOT0 Status of pins , To select the startup mode after the MCU is reset .

（ One ）boot0 = 0,boot1 = 0/1 when , Flash from user （flash） start-up , yes STM32 Built in Flash, Generally we use JTAG perhaps SWD When downloading program in mode , Just download it to this , After restart, start the program directly from here .

（ Two ）boot0 = 1,boot1 = 0 when , Boot from system memory , The program function started in this mode is set by the manufacturer .

（ 3、 ... and ）boot0 = 1,boot1 = 1 when , From the built-in SRAM start-up , Since it is SRAM, Naturally, there is no program storage capacity , This mode is generally used for program debugging .

13、 Tricolor LED The lamp ： According to different PWM The signal shows different colors .

19、 Development board main control chip ：STM32F103ZET6

32、JTAG Interface ： Connect the chip to the downloader , For downloading and debugging code .

36、USB To serial port interface ： Connect the computer to the development board , For debugging printing .

38、 Reset button ： When pressed , Chip generates reset .

The third chapter Environment building

3.1 Embedded software development steps

Embedded development is usually divided into six steps ： edit 、 Preprocessing 、 compile 、 assembly 、 link 、 Debug and download . Each link needs corresponding software implementation , If these software are integrated , It is called integrated development environment （Integrated Development Environment,IDE）.

edit ： In the text editor , Write code in a programming language , Save to source file , Generate .c file .

Preprocessing ： By pretreatment , take .c Preprocessing instructions in the source file , Get the preprocessing file .i file .

compile ： The compiler passes the preprocessed file through a series of syntax 、 Lexical analysis and optimization , Get compiled .s file .

assembly ： The assembler compiles the assembly code in the assembly file into a relocatable object file used by the machine .o file . One source file corresponds to one .o file , Multiple source files correspond to multiple .o file .

link ： The connector will be multiple .o Documents are linked one by one , Get an executable object file .elf file ..elf The file can be converted to a .bin file .

Debug and download ： The developer downloads the executable object file to the chip , Judge whether the program meets the requirements according to the phenomenon .

The editor 、 The preprocessor 、 Assembler 、 The linker 、 The debugger is integrated , Is the integrated development environment (lntegrated Development Environment.IDE)IDE, such as Keil or STM32CubeMX Such software .

3.2STM32CubeMX Download and install

3.2.1 install Java Running environment

because STM32CubeMX Software is based on JAVA The environment is running , So you need to install JRE Can be used .

Open the package and find \3_ Development software \4_ Initialize the code generator (STM32CubeMX)\jre-8u281-windows-x64, Click Install .

3.2.2STM32CubeMX install

STM32CubeMX yes ST A code initialization generation tool launched by the company , Support ST All active chips .

The official download :https://www.st.com/zh/development-tools/stm32cubemx.html

Package installation ：\3_ Development software \4_ Initialize the code generator (STM32CubeMX)\en.stm32cubemx_v6-0-1

Open the downloaded folder , double-click SetupSTM32CubeMX-6.0.1.

Be careful , If you choose the installation path, you'd better not have Chinese in the installation path , Otherwise, unexpected errors may occur .




installation is complete .

3.3Keil install

Keil-MDK（Keil ARM Microcontroller Development Kit） The previous life was Germany Keil company , After being ARM Acquisition , You can see
It is ARM Official integrated development environment .

Keil Download from the official website :https://www.keil.com/download/product/

In the information package provided by Baiwen, there are also Keil Installation package . The path is a \3_ Development software \2_ Integrated development environment IDE(Keil)

On the top is Keil Chips needed SDK package . Next is Keil Installation procedure , Double-click on the run MDK532.


Select installation path , Note that if you want to customize the path , It's best not to have Chinese in the path .

Fill in some information casually .

Wait for installation to complete .

installation is complete , Click on finish.

Open software , Click on ok.

install pack package , Double-click on the run Keil.STM32F1xx_DFP.2.3.0, Click on Next.

Waiting for the installation .

Click on finish, installation is complete .