STM32 LED OUTPUT(PRATIKUM 1)

Summary

This video provides a hands-on tutorial for programming STM32 microcontrollers using STM32CubeMX and Keil Microvision. It covers the setup of the development environment, including software installation and configuration of the STM32 trainer board. The tutorial focuses on controlling LEDs through GPIO pins, with step-by-step instructions on writing, compiling, and uploading the code. The video also includes demonstrations of toggling LED states, adding delays, and debugging, with additional tasks for students to explore controlling multiple LEDs and interfacing with other components like LDRs and potentiometers.

Takeaways

• 😀 The practical session focuses on programming with STM32 microcontrollers.
• 😀 Essential software tools include STM32CubeMX for project setup and Keil MicroVision for C programming.
• 😀 ST-Link is required to transfer data from the PC to the STM32 hardware trainer.
• 😀 The STM32 trainer setup includes components such as buttons, buzzers, LEDs, LDR, potentiometer, 7-segment display, and LCD 16x2.
• 😀 The first practical task is to control LEDs using the STM32 microcontroller.
• 😀 STM32CubeMX is used to configure the MCU and project settings, such as selecting the microcontroller (STM32F103C8).
• 😀 Serial Wire Debug (SWD) is chosen for communication with the ST-Link, and high-speed clock settings are configured.
• 😀 The LEDs on pins PB6 and PB5 are configured as GPIO output pins in the STM32CubeMX software.
• 😀 In Keil MicroVision, the project file is opened, and the necessary program structure and variable declarations are made.
• 😀 A sample code is written to control the state of the LEDs (turning them on/off) by writing to the GPIO pins (PB6, PB5).
• 😀 The program is compiled and transferred to the STM32 hardware. The LEDs can be toggled on/off, and the program can include delays to blink LEDs periodically.

Q & A

What software is required to facilitate programming for the STM32 microcontroller?

The software required is STM32CubeMX, which helps in generating the initial configuration for the STM32 microcontroller.

Why is the use of Keil MicroVision necessary in this practical session?

Keil MicroVision is necessary as it is the Integrated Development Environment (IDE) where you write, compile, and debug the C code for the STM32 microcontroller.

What is the role of ST-Link in the programming process?

ST-Link is used to transfer the program data from the PC to the STM32 trainer hardware. It acts as the downloader for the code.

What are the key components on the STM32 trainer used in this practice session?

The key components on the STM32 trainer are four push buttons, one buzzer, four LEDs, one LDR (Light Dependent Resistor), a potentiometer, a 7-segment display, and a 16x2 LCD.

Which MCU is selected for this practical session, and how is it chosen in STM32CubeMX?

The MCU selected for this session is the STM32F103C8. It is chosen by selecting 'Access to MCU Selector' in STM32CubeMX and then choosing the correct MCU model.

How is the communication between STM32CubeMX and the hardware established?

The communication is established using Serial Wire (SWD), which is configured in STM32CubeMX to link the software with the hardware through the ST-Link.

What is the purpose of the RCC configuration in STM32CubeMX?

The RCC (Reset and Clock Control) configuration is used to set the clock source for the microcontroller. In this session, high-speed clocking with a ceramic resonator is used.

How are the LEDs configured in STM32CubeMX?

The LEDs are configured by setting the GPIO pins (e.g., PB6, PB5) as output. These pins are connected to the LEDs on the STM32 trainer, and their behavior (ON/OFF) is controlled in the program.

What is the function of the 'gpio' command in the C code to control the LEDs?

The 'gpio' command is used to access and control the GPIO pins on the STM32. It is used to either set the LED pins high or low, turning the LEDs ON or OFF.

How do you make an LED blink in this practical session?

To make an LED blink, a delay of 1 second (1000 ms) is added in the code, where the LED is turned ON, then OFF after the delay, creating a blinking effect.