Author: Andrew Irwin

The ARM Cortex-M3 is a 32-bit processor core designed for embedded applications requiring high performance and low power consumption. Some key fundamentals and features of the Cortex-M3 architecture include: 32-bit Architecture The Cortex-M3 utilizes a 32-bit architecture which enables it to work with 32-bit data and addresses directly. This provides higher performance and larger memory

The ARM Cortex-M3 processor implements atomic bit manipulation via exclusive access instructions that allow read-modify-write operations on single bits to execute atomically. This ensures thread safety for multithreaded programs accessing the same variables and prevents race conditions that could lead to corrupted data. Overview of Atomic Operations An atomic operation in computer science refers to

The Thumb instruction set used in ARM processors has a reduced number of addressing modes compared to ARM mode. This is done to compress the size of instructions when in Thumb state. The main addressing modes supported in Thumb state are: Register Addressing This is the most basic addressing mode where the operands are registers

The Arm Cortex-M3 is a 32-bit processor core licensed by Arm Holdings. It is part of the Cortex-M series of microcontroller cores, and is designed for embedded applications requiring high performance and low power consumption. The Cortex-M3 core is widely used in a variety of products including automotive engine control units, industrial automation controllers, IoT

Seeing “Invalid ROM Table” errors when trying to debug Cortex-M1 chips using a ULINK2 debugger can be incredibly frustrating. This article will dive into the technical details behind these errors to help you understand why they occur and how to resolve them. What Causes Invalid ROM Table Errors? The Cortex-M1 processor contains a ROM table

Porting the Cortex-M1 DesignStart project to a new hardware platform can be challenging, with many potential issues arising during the debugging process. This article provides an overview of common debugging problems and solutions when porting the DesignStart project. Issues with JTAG/SWD connectivity One of the first issues that may arise is not being able to

The ARM Cortex-M1 processor provides a simple and efficient way to access peripheral registers through memory mapped I/O. This allows developers to read and write to peripherals as if they were normal memory locations. The key advantage of this approach is that standard load and store instructions can be used without any special peripheral access

When developing applications for Arm Cortex-M based microcontrollers, properly estimating the stack memory requirements is crucial for optimizing memory usage and avoiding stack overflows. This article provides a comprehensive guide on techniques and best practices for calculating your Cortex-M application’s stack needs. What is the Stack? The stack is a region of memory used to

Debugging ARM Cortex-M1 cores implemented in Altera FPGAs can be challenging, but with the right tools and setup, it can be done efficiently. This guide will walk through the key steps involved in setting up debugging for ARM Cortex-M1 cores in Altera FPGAs using the ARM Debug Interface v5 (ADIv5) and a JTAG debugger like

Debugging embedded systems like Cortex-M1 on Arty board without a debug adaptor or DAPLink can be challenging, but is possible with some effort. This article will guide you through the process step-by-step. Overview The key steps are: Enabling SWD Pins on Arty Arty board has SWD pins broken out to the headers, but they are