STM32F103 Development Tutorial337

The STM32F103 is a powerful microcontroller from STMicroelectronics. It is based on the ARM Cortex-M3 core and has a wide range of features, including:
Up to 128 KB of flash memory
Up to 20 KB of RAM
Two 12-bit ADCs
Two 12-bit DACs
Several communication interfaces, including UART, SPI, and I2C

The STM32F103 is a popular choice for a wide range of applications, including:
Industrial control
Medical devices
Consumer electronics

In this tutorial, we will show you how to get started with the STM32F103. We will cover the following topics:
Setting up your development environment
Creating a new project
Writing your first program
Debugging your program

Setting up your development environment

The first step is to set up your development environment. You will need the following software:
An IDE, such as the STM32CubeIDE
A compiler, such as the ARM Compiler 6
A debugger, such as the ST-Link

Once you have installed the necessary software, you can create a new project.

Creating a new project

To create a new project, open your IDE and select the "File" -> "New" -> "Project" menu option. In the "New Project" dialog box, select the "STM32" template and click on the "Next" button.

In the "Project settings" dialog box, enter the following information:
Project name: Enter a name for your project.
Device: Select the STM32F103 device that you are using.
Toolchain: Select the compiler that you want to use.

Click on the "Finish" button to create your new project.

Writing your first program

Now that you have created a new project, you can start writing your first program. To do this, open the "main.c" file in your project directory.

The following is a simple program that blinks an LED:```c
#include "stm32f103x6.h"
int main() {
// Enable the GPIO clock
RCC->APB2ENR |= RCC_APB2ENR_IOPAEN;
// Set the GPIO pin as output
GPIOA->CRH &= ~GPIO_CRH_MODE13;
GPIOA->CRH |= GPIO_CRH_MODE13_0;
// Loop forever
while (1) {
// Set the GPIO pin high
GPIOA->BSRR |= GPIO_BSRR_BS13;
// Delay for 500 milliseconds
for (int i = 0; i < 500000; i++) {
__asm__("nop");
}
// Set the GPIO pin low
GPIOA->BSRR |= GPIO_BSRR_BR13;
// Delay for 500 milliseconds
for (int i = 0; i < 500000; i++) {
__asm__("nop");
}
}
}
```

To compile and run your program, click on the "Build" button in your IDE. If there are no errors, your program will be compiled and run on the STM32F103 device.

Debugging your program

If your program does not work as expected, you can use the debugger to help you find the problem. To do this, click on the "Debug" button in your IDE. The debugger will start and you will be able to step through your program line by line.

The debugger will also allow you to set breakpoints and examine the values of variables. This can be very helpful when trying to find the cause of a problem.

Conclusion

In this tutorial, we have shown you how to get started with the STM32F103 microcontroller. We have covered the following topics:
Setting up your development environment
Creating a new project
Writing your first program
Debugging your program

We encourage you to experiment with the STM32F103 and explore its many features. With its powerful processor and wide range of peripherals, the STM32F103 is a great choice for a wide range of applications.

2025-02-15

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