Author: Andrew Irwin

The WFI (Wait For Interrupt) and WFE (Wait For Event) instructions allow the Cortex-M3 processor to enter a low power state until a wakeup event occurs. This enables significant power savings in embedded systems through reducing dynamic power when the processor is idle. Contents Introduction Reducing power consumption is a key priority in many embedded

The Cortex-M3 processor offers a deep sleep mode that allows the system to enter an extremely low power state while retaining the contents of RAM. This allows maximum power savings while still providing fast wake-up times. Utilizing deep sleep mode properly is key to optimizing battery life in Cortex-M3 based devices. Introduction to Deep Sleep

The ARM Cortex-A76 is generally considered to be a very good mobile CPU core. It offers excellent performance and efficiency which makes it suitable for use in smartphones, tablets, and other mobile devices. Some key advantages of the Cortex-A76 include: Performance The Cortex-A76 delivers a significant performance boost over previous ARM cores like the Cortex-A73

The ARM Cortex-A76 and Cortex-A77 are two of ARM’s most advanced high-performance CPU cores designed for mobile, computing, and infrastructure applications. Both cores are based on ARM’s DynamIQ technology and built on the 7nm manufacturing process, offering significant improvements in performance and efficiency over previous ARM CPU generations. The Cortex-A77 builds upon the Cortex-A76 design

When compiling code for ARM processors using the gcc toolchain, it is important to set the correct CPU target in order to generate optimized code. The CPU target tells gcc what ARM architecture and features to target, so it can take advantage of hardware capabilities while avoiding unsupported instructions. This article provides an overview of

The Cortex-M3 is an ARM processor core designed for microcontroller applications. It has a Von Neumann architecture with separate code and data memory regions. The memory regions are divided into different types with specific attributes defined in the Memory Protection Unit (MPU). Understanding the Cortex-M3 memory regions and their attributes is important for effective software

The ARM Cortex-A75 and Cortex-A76 are two of ARM’s most powerful CPU cores designed for mobile devices. The Cortex-A76 succeeds the Cortex-A75 and brings significant improvements in performance and efficiency. In summary, the key differences between the Cortex-A75 and Cortex-A76 are: Manufacturing Process The Cortex-A75 is built on TSMC’s 10nm FinFET process, while the Cortex-A76

The key difference between Harvard and Von Neumann architectures is that Harvard architecture has physically separate storage and signal pathways for instructions and data, while Von Neumann architecture uses the same memory and pathways for both instructions and data. This separation allows Harvard architecture to achieve greater parallelism and throughput for certain workloads. What is

The Application Program Status Register (APSR) is one of the key registers in the ARM Cortex series of processors. It contains important status and control information related to the execution state of an application program. Directly accessing the APSR can provide valuable insights into the current state of the processor and allow modifying certain control