Porting FreeMODBUS to AT32 MCU

Guide to Modbus overview and porting FreeMODBUS to AT32F435 with hardware setup, Modbus Poll testing, RTU/ASCII and RS485 implementation.

RL78 Interrupt Nesting Configuration

Enable RL78 interrupt nesting, set priorities, handle shared vectors and fixed addresses for bootloader-safe interrupt management.

Open-source Framework Zorb for Bare-Metal Microcontrollers

Introduction to the open-source Zorb framework for bare-metal microcontrollers: a lightweight, event-driven embedded framework (zf_time, zf_buffer, zf_fsm) and STM32 debug setup.

What Is an MCU? Types and Overview

MCU explained: architecture, types and why automotive-grade microcontrollers power electric vehicles - BMS, VCU, motor control, ADAS.

DIP Switches and MCU Interfaces: Basic Principles

Learn how to wire DIP and rotary switches to microcontrollers: avoid floating inputs, use internal pulls, multiplexing tips and rotary codes.

Reasons an MCU Won't Start on Power-Up

Troubleshoot MCUs that won't start after firmware download: check BOOT pin, NRST, VDD/VDDA, oscillator, correct chip variant and debug startup.

Programming Languages Used for Microcontroller Development

Overview of microcontroller development languages—Assembly, C, C++, MicroPython and others—with examples and hardware trade-offs for embedded developers.

MCU Internal Clock Circuit Principles

Discover the vital role of an MCU's clock circuit. Learn how this "heartbeat" provides the timing signal for performance, data synchronization, and stability.

Simulating a Serial Port with MCU GPIOs

Running out of hardware serial ports on your MCU? Learn how to simulate a serial port using GPIO pins with this guide to bit-banging communication.

Why Use for(;;) for MCU Infinite Loops?

for(;;) vs. while(1): Which is the best infinite loop for microcontrollers? We compare performance, assembly output, and what coding standards recommend.