Debugging software on Arm Cortex-M devices requires configuring the CoreSight components like the Embedded Trace Macrocell (ETM), Trace Port Interface…

Eileen David 20 Min Read

Arm

ARM Debug Interface Architecture Specification

The ARM Debug Interface Architecture (DIA) specification defines a standard debugging interface between debug agents and ARM processor cores. This…

Graham Kruk 10 Min Read

Arm

NULL Pointer Protection with ARM Cortex-M MPU with Examples

NULL pointer dereferences are a common source of bugs and security vulnerabilities in embedded systems built on ARM Cortex-M CPUs.…

Javier Massey 5 Min Read

Arm

What is the TM4C123 Microcontroller?

The TM4C123 is a 32-bit ARM Cortex-M4 based microcontroller from Texas Instruments. It is part of the Tiva C Series…

David Moore 9 Min Read

Videos

What does LDR mean in ARM assembly?

Ryan Ryan 5 Min Read

Accessing the ARM Application Program Status Register

Andrew Irwin 13 Min Read

Code Compatibility Between Cortex-M0 and M0+ Cores

Andrew Irwin 7 Min Read

Comparing ARM Compilers: IAR vs GNU vs LLVM/Clang

Eileen David 13 Min Read

Arm

What is ARM Cortex-R52+?

The ARM Cortex-R52+ is the latest processor core in ARM's Cortex-R series aimed at high-performance real-time applications. Announced in late…

Javier Massey 5 Min Read

Arm

Is Raspberry Pi ARM or x86?

The Raspberry Pi uses an ARM-based system-on-a-chip rather than an x86 processor. All models of the Raspberry Pi, from the…

Mike Johnston 9 Min Read

Arm

What is the Function of the ARM Cortex M3?

The ARM Cortex-M3 is a 32-bit processor core designed for embedded and IoT applications. It is part of ARM's Cortex-M…

Ryan Ryan 7 Min Read

Arm

Is the Cortex M0 really low-power?

The Cortex-M0 is generally considered a low-power microcontroller core designed by ARM. To answer whether it truly is low-power or…

Javier Massey 6 Min Read

Arm

Is CMSIS a library?

Yes, CMSIS stands for Cortex Microcontroller Software Interface Standard and it is a vendor-independent hardware abstraction layer for microcontrollers based…

David Moore 7 Min Read

Arm

What is the size of the ARM Cortex-M3’s address bus?

The ARM Cortex-M3 processor has a 32-bit address bus, which means it can address up to 2^32 (4 gigabytes) of…

Neil Salmon 10 Min Read

Arm

Workarounds for Inefficient Code Generated by GNU-ARM for ARMv6-M CPUs

The ARM Cortex-M0 and Cortex-M0+ processors based on the ARMv6-M architecture are highly optimized for energy efficiency and low cost.…

Mike Johnston 4 Min Read

Arm

What is ARMv8.1-M in Arm Cortex-M series?

ARMv8.1-M is the latest architecture within the ARM Cortex-M series of embedded and IoT processors. It introduces key enhancements for…

Scott Allen 8 Min Read

Arm

ARM Cortex-M0 vs Cortex-M23

The ARM Cortex-M0 and Cortex-M23 are two low-power microcontroller cores designed for embedded and IoT applications. The main differences between…

Scott Allen 9 Min Read

Arm Cortex M4

When to Use Intrinsics vs Assembler for Math Functions on Cortex-M4?

When programming for the Cortex-M4 chip, developers have a choice between using compiler intrinsics or handwritten assembly language for implementing…

Jeday Schwartz 11 Min Read

Arm

Arm Cortex M4 Lockup

The Arm Cortex-M4 is a popular 32-bit processor designed for embedded applications. It is based on the Armv7-M architecture and…

Jamie Kellett 8 Min Read

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