STM32F103C8T6 Microcontroller

The STM32F103C8T6 is a high-performance, 32-bit ARM Cortex-M3 microcontroller from STMicroelectronics.
It is part of the STM32 family and is widely used in embedded systems, IoT devices, and various industrial applications due to its powerful features and flexibility.

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[!TIP]
If you're looking to better understand how to navigate and use my GitHub repositories — including exploring their structure, downloading or cloning projects, submitting issues, and asking questions,
everything you need is clearly explained in this video:
aKaReZa 95 - Programming, Git - PART B
Make sure to check it out!

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Learn how to choose your specialization, follow curated playlists, and engage effectively with the community—ideal for learners seeking a scalable, goal-driven path into embedded engineering.
aKaReZa 124 – Embedded Systems Roadmap
Watch it now to kickstart your journey!

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[!CAUTION] It is absolutely critical that you carefully read every single word of this document, line by line, to ensure you don't miss any details. Nothing can be overlooked.

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Key Features

• Core: ARM Cortex-M3 32-bit RISC core.
• Clock Speed: Up to 72 MHz.
• Flash Memory: 64 KB of flash memory for program storage.
• SRAM: 20 KB of static RAM.
• GPIO Pins: 37 general-purpose I/O pins.
• Communication Interfaces:
  • USART: Up to 3 universal synchronous/asynchronous receivers/transmitters.
  • SPI: Up to 2 Serial Peripheral Interfaces.
  • I2C: Up to 2 Inter-Integrated Circuit interfaces.
  • USB: Full-speed USB 2.0 interface.
• Timers:
  • Advanced-control Timers: 1 x 16-bit.
  • General-purpose Timers: 3 x 16-bit.
  • SysTick Timer: 24-bit down counter.
• ADC: 2 x 12-bit Analog-to-Digital Converters with up to 10 channels.
• DAC: 2 x 12-bit Digital-to-Analog Converters.
• DMA: 7-channel Direct Memory Access controller.
• Operating Voltage: 2.0V to 3.6V.
• Power Consumption: Low-power modes for energy-efficient applications.

Capabilities

• High Performance: ARM Cortex-M3 core delivers high efficiency and performance.
• Rich Peripherals: Integrated peripherals like USB, ADC, DAC, and timers make it suitable for complex applications.
• Flexibility: Supports a wide range of applications, from simple control systems to advanced IoT devices.
• Ease of Development: Extensive support from STM32CubeMX, HAL libraries, and third-party tools like ST-Link.
• Community Support: Large community and extensive documentation available.

Applications

• Embedded Systems: Used in various embedded applications due to its robustness and flexibility.
• IoT Devices: Ideal for IoT applications with its low power consumption and communication interfaces.
• Industrial Automation: Suitable for industrial control systems and automation.
• Consumer Electronics: Found in various consumer electronic devices.
• Robotics: Commonly used in robotics for motor control and sensor interfacing.

Development Tools

• IDEs: Keil MDK.
• Programmers: STLINK-V3MINIE.
• Debuggers: STLINK-V3MINIE, Serial debugging via UART, print (using SWO).

🔗 Resources

Here you'll find a collection of useful links and documents related to the STM32 microcontroller and its applications.
These resources include datasheets, tutorials, and essential tools to get you started and guide you through.

[!TIP] The resources are detailed in the sections below.
To access any of them, simply click on the corresponding blue link.

• Video PlayList

  All educational videos related to this topic are available at this link.

• Minimun Hardware

  This document explains the minimal required hardware setup to power up and properly boot the STM32 microcontroller.

• STM32 Packages

  This section offers download links for STM32Cube MCU Firmware Packages and Keil DFU (Device Firmware Update) packages.
  These packages include essential libraries, drivers, and middleware to enhance and expedite the development, programming, and debugging of STM32 microcontrollers.

• eBoard STM32F103C8

  A complete design, assembly, and testing project for an educational header board based on the STM32F103C8 microcontroller, fully compatible with the Arduino UNO form factor. Ideal for learning, prototyping, and experimenting with STM32 peripherals.

• STM32 RawProject

  A lightweight and structured STM32F103C8 project template using STM32CubeMX and HAL, tailored for Keil uVision. Includes essential setup files to quickly start new embedded projects with a solid foundation.

• Compiler Optimization Analysis

  A comprehensive analysis and comparison of compiler optimization levels (-O0, -O1, -O2, -O3, -Os, -Oz, -Ofast, -Omax). This report includes detailed Flash and SRAM memory usage metrics, visual comparisons, optimization techniques explanation, and practical recommendations for selecting the optimal compiler settings based on your project requirements.

💻 How to Use Git and GitHub

To access the repository files and save them on your computer, there are two methods available:

1. Using Git Bash and Cloning the Repository

   • This method is more suitable for advanced users and those familiar with command-line tools.
   • By using this method, you can easily receive updates for the repository.

2. Downloading the Repository as a ZIP file

   • This method is simpler and suitable for users who are not comfortable with command-line tools.
   • Note that with this method, you will not automatically receive updates for the repository and will need to manually download any new updates.

Clone using the URL.

First, open Git Bash :

• Open the folder in File Explorer where you want the library to be stored.
• Right-click inside the folder and select the option "Open Git Bash here" to open Git Bash in that directory.

[!NOTE] If you do not see the "Open Git Bash here" option, it means that Git is not installed on your system.
You can download and install Git from this link.
For a tutorial on how to install and use Git, check out this video.

• Once Git Bash is open, run the following command to clone the repository:

git clone https://github.com/aKaReZa75/STM32

• You can copy the above command by either:
• Clicking on the Copy button on the right of the command.
• Or select the command text manually and press Ctrl + C to copy.
• To paste the command into your Git Bash terminal, use Shift + Insert.

• Then, press Enter to start the cloning operation and wait for the success message to appear.

[!IMPORTANT] Please keep in mind that the numbers displayed in the image might vary when you perform the same actions.
This is because repositories are continuously being updated and expanded. Nevertheless, the overall process remains unchanged.

[!NOTE] Advantage of Cloning the Repository:

• Receiving Updates: By cloning the repository, you can easily and automatically receive new updates.
• Version Control: Using Git allows you to track changes and revert to previous versions.
• Team Collaboration: If you are working on a project with a team, you can easily sync changes from team members and collaborate more efficiently.

Download Zip

If you prefer not to use Git Bash or the command line, you can download the repository directly from GitHub as a ZIP file.
Follow these steps:

1. Navigate to the GitHub repository page and Locate the Code button:

   • On the main page of the repository, you will see a green Code button near the top right corner.

2. Download the repository:

   • Click the Code button to open a dropdown menu.
   • Select Download ZIP from the menu.

3. Save the ZIP file:

   • Choose a location on your computer to save the ZIP file and click Save.

4. Extract the ZIP file:

   • Navigate to the folder where you saved the ZIP file.
   • Right-click on the ZIP file and select Extract All... (Windows) or use your preferred extraction tool.
   • Choose a destination folder and extract the contents.

5. Access the repository:

   • Once extracted, you can access the repository files in the destination folder.

[!IMPORTANT]

• No Updates: Keep in mind that downloading the repository as a ZIP file does not allow you to receive updates.
  If the repository is updated, you will need to download it again manua