Author: Mike Johnston

Field Programmable Gate Arrays (FPGAs) based on ARM Cortex-M processor cores, also known as Cortex-MO FPGAs, are reconfigurable integrated circuits that combine the flexibility of an FPGA with the processing power and ecosystem of the ARM architecture. Cortex-MO allows developers to integrate custom hardware accelerators while leveraging the efficiency, toolchain and software investments of Cortex-M.

The ARM Cortex-M4 and Raspberry Pi are two very different devices that serve different purposes. The Cortex-M4 is a 32-bit ARM processor core designed for embedded applications like IoT and wearables. The Raspberry Pi is a small single-board computer designed for hobbyists and educational use. While both utilize ARM architecture, the Cortex-M4 offers real-time performance

The Raspberry Pi uses an ARM-based system-on-a-chip rather than an x86 processor. All models of the Raspberry Pi, from the earliest Raspberry Pi Model B to the latest Raspberry Pi 4 Model B, have used ARM processors. The ARM architecture is very different from x86, offering advantages like reduced power consumption that make it popular

The Arm Cortex M4 and ESP32 are two popular 32-bit microcontroller units (MCUs) used in a variety of embedded systems and Internet of Things (IoT) applications. Both offer powerful capabilities but have key differences that engineers should consider when selecting a microcontroller for their project. The main factors to compare are architecture, performance, features, development

The short answer is yes, ARM does assume that all Cortex-M microcontrollers are little-endian by default. However, Cortex-M CPUs do have configuration options to enable big-endian data accesses if required by the system design. Introduction to Endianness Endianness refers to the byte ordering used to represent data in memory and during data transfers. There are

The hard fault exception in ARM Cortex-M processors is designed to handle catastrophic software errors and hardware faults. It acts as a catch-all exception handler when no other fault handler is able to process the error. The hard fault handler allows the system to recover gracefully or at least safely halt execution when unrecoverable errors

The key differences between the ARM Cortex-M0 and M3 microcontrollers lie in their instruction set architecture, memory protection unit, operating frequency, and debugging capabilities. The Cortex-M0 is more basic while the M3 offers more advanced features and performance. Instruction Set Architecture The Cortex-M0 uses a reduced Thumb instruction set based on the Thumb-2 technology in

The main differences between the ARM Cortex-M0+ and Cortex-M4 microcontrollers lie in their architectural design, performance capabilities, supported features, and intended use cases. The Cortex-M0+ is a more basic, lower power ARM core aimed at simple embedded applications, while the Cortex-M4 has greater performance and supports more advanced features for more demanding embedded and IoT

The MMU (Memory Management Unit) is a key component of the ARM processor architecture that handles virtual-to-physical memory address translations. The MMU allows the processor to implement a virtual memory system, providing features like memory protection, demand paging, and memory isolation between processes. Overview of the ARM MMU The ARM MMU is a hardware unit

The short answer is yes, the Cortex-M series of ARM processor cores do have an MMU (Memory Management Unit). The MMU allows Cortex-M cores to support memory protection, virtual memory, and other advanced memory management features. Overview of the Cortex-M Series The Cortex-M series is ARM’s family of 32-bit RISC processor cores designed for embedded