Follow+Star Public Account Number, don’t miss wonderful content Author | strongerHuang WeChat Official Account | strongerHuang Cortex-M is an ARM core designed for MCU, launched about 20 years ago, and the most classic is the Cortex-M3 core, which is one of the most widely used cores on the market today. Currently (2024-09), the latest and … Read more
Click the card below to follow Arm Technology Academy This article is authorized to be reprinted from the WeChat public account Electronic Circuit Development Learning. This article mainly shares how to build a Cortex-M3 soft core on FPGA. Abstract: This article describes how to build a Cortex-M3 soft core processor on FPGA based on Xilinx … Read more
Seeing that the number 9 in ARM9 is larger, do you think it is better? Seeing that a lot of information is based on S3C2410, do you think it is still quite popular now? If we could turn back time 10 years, ARM9 and S3C2410 were indeed quite popular. Why do I say this? Because … Read more
Taking the hello_world software simulation of the Cortex-M3 SoC chip as an example: We will first explain with the compilation results from Keil; the GCC compilation will be discussed in another article. Zoom in: Program Size: Code=664 RO-data=224 RW-data=8 ZI-data=864 ① Code is a series of ARM instruction codes stored in eflash; ② RO DATA … Read more
Table of Contents Chapter 1 Introduction to ARM Cortex-M3 Core 1.1 Chapter Overview 1.2 Main Applications 1.3 Main Features of Cortex-M3 1.4 Characteristics of Typical M3 Core Processors 1.4.1 Naming Rules 1.4.2 Product Functions and Peripheral Configuration 1.5 Chapter Summary 1.6 Exercises Chapter 2 Setting Up the Development Environment 2.1 Chapter Overview 2.2 MDK Installation … Read more
Bit-banding operations may not be used as much now, but in the past, when MCU performance was not very good, bit-banding operations were a common operation among many software engineers. This article mainly discusses the Cortex-M3 core (STM32F1), and I believe many friends have been confused when they first learned about it. 1About Bit-Banding Operations … Read more
Reference: Wikipedia Reference URL: https://en.wikipedia.org/wiki/ARM_architecture Everyone should know that STM32, Cortex-M3, and ARMv8-M are related to ARM, but may not be clear about their relationships or what they specifically are. 1. Overview ARMv8-M: is a ARM architecture. ARM architectures are divided into: ARMv1, ARMv2, …, ARMv8. ARMv8 is divided into: ARMv8-A, ARMv8-R, ARMv8-M. Cortex-M3: is … Read more
Work Mode Thread mode: This mode is active when the processor is reset or exits from an exception. Code in this mode can be either privileged or user code, controlled by CONTROL[0]. Handler mode: This mode is entered when an exception (including interrupts) occurs, with all code having privileged access. Code Privileges Privileged access: Full … Read more
Follow our official account, and never miss exciting content. Compiled by: Engineer Huang Reference: Wikipedia Reference link: https://en.wikipedia.org/wiki/ARM_architecture Everyone should know that STM32, Cortex-M3, and ARMv8-M are related to ARM, but may not be clear about their relationships or what they specifically are. 1. Overview ARMv8-M: is an ARM architecture. ARM architectures are divided into: … Read more
Full-stack chip engineers prefer to get straight to the point, let’s examine the architecture: Reply in the public account backend:220327, to get a step-by-step ARM_FPGA tutorial. Reply in the public account backend:220318, to get the download link of the above file. Cortex-M3 soft core IP download link: Cortex-M3 DesignStart FPGA-Xilinx edition (r0p1-00rel0) https://silver.arm.com/browse/AT426 File name:AT426-BU-98000-r0p1-00rel0.tgz … Read more