This guide demonstrates how to emulate a Modbus RTU sensor on an STM32 microcontroller, enabling the device to behave as a compliant Modbus slave over a serial interface such as RS-485 or UART. The objective is to provide a clear, practical...
READ MOREPart 2 focuses on receiving data over an RS-485 bus, where correct timing and bus state management are critical for reliable communication. For demonstration purposes only, the system behavior is to echo back the received data, allowing reception...
READ MOREPart 1 introduces RS-485 as a robust, differential serial communication standard widely used in industrial and embedded systems for its noise immunity and long-distance capability.In this part, we focus on STM32 HAL configuration and the...
READ MOREIn this second part of the guide, we move from configuration to implementation by developing the ST7789V2 driver header and source files for STM32. We will initialize the LCD controller and implement a basic draw-pixel function, using it to...
READ MOREThis guide explains how to configure and use TIM1 on STM32F4 to generate precise PWM and complementary PWMN signals with configurable dead-time insertion. It covers the principles of dead-time generation, complementary waveform synchronization...
READ MORETIM1 is an advanced-control timer on STM32 microcontrollers designed for high-performance applications that require precise timing, complementary PWM generation, and robust safety features. This guide explains the key capabilities of TIM1 and...
READ MOREThis guide provides a concise introduction to getting started with the dual-core STM32H747 MCU, focusing on project creation, core-specific GPIO configuration, and firmware flashing. It explains the fundamental steps required to correctly assign...
READ MOREIn this guide, we shall see how to receive data using UART in LIN configuration. In this guide, we shall cover the following: 1. STM32CubeMX Setup: We shall pickup from the previous guide from here. Open LIN_Bus project from STM32CubeMX. Once the...
READ MOREIn this guide, the installation of the IDE is presented. In this guide, we shall cover the following: Note: This guide for STM32F411. However, the method will apply to most of STM32 families. 1. Installing the IDE: Head to main STM32CubeIDE...
READ MOREIn this multiple-part guide series on LIN (Local Interconnect Network) bus for STM32F4, I will cover its fundamentals and implementation. In this guide, we shall cover the following: What is LIN Bus: Introduction to LIN Bus: LIN was...
READ MOREDifferential mode in the STM32 ADC allows measurements based on the voltage difference between two input pins rather than a single-ended signal referenced to ground. This approach greatly improves noise immunity, increases measurement accuracy...
READ MORECascading two 16-bit timers on the STM32 allows you to build a fully synchronized 32-bit extended timer, overcoming the counting limitations of a single 16-bit peripheral. By configuring one timer as the master and the other as its...
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