Author: Holly Lindsey

The Cortex-M processor implements robust exception handling capabilities to respond to events like exceptions, interrupts, and faults during program execution. The processor automatically saves context, executes exception handlers, and restores context upon return from an exception. This allows Cortex-M based systems to handle exceptions safely and recover program execution. Cortex-M Exception Types There are several

The STM32F1 microcontroller based on the Cortex-M3 core provides the ability to boot from RAM instead of flash memory. This allows developers to update and test new firmware without erasing or reprogramming the main flash memory. Booting from RAM can be useful during development and testing but also has limitations that need to be understood.

The ARM Cortex M3 processor implements interrupt handling in a way that preserves the atomicity of multi-cycle instructions and operations. This enables robust synchronization between interrupts and program execution even for instructions that take multiple clock cycles to complete. Multi-Cycle Instructions in Cortex M3 Certain instructions in the Cortex M3 Thumb instruction set require multiple

The Cortex-M3 and Cortex-M4 microcontrollers allow for dynamic changing of interrupt priorities at runtime. This provides flexibility in adjusting the priority levels of interrupts in response to application needs. With static interrupt priorities, the priority levels are fixed at compile time and cannot be altered while the application is running. Dynamic priorities enable higher priority

Cortex-M microcontrollers allow developers to assign different priority levels to interrupts. This allows high priority interrupts to preempt lower priority ones. Changing the priority of interrupts dynamically at runtime can help optimize interrupt response and overall system performance. Interrupt Priority Levels On Cortex-M processors, interrupts can have 256 priority levels from 0 (highest priority) to

The ARM Cortex-M1 processor is a popular choice for embedded and IoT applications due to its low cost and power efficiency. However, debugging Cortex-M1 designs on an FPGA can be challenging without access to the JTAG interface. This article will provide an overview of techniques to debug your Cortex-M1 FPGA implementation without relying on Virtual

The count leading zeros (CLZ) operation is an important function in many computing applications, especially on microcontrollers and other resource-constrained devices. CLZ counts the number of leading zero bits before the first 1 bit in a word. An efficient CLZ implementation allows faster bit scanning and manipulation operations. On ARM Cortex-M microcontrollers, CLZ is provided

Watchpoint comparators in Arm Cortex-M series microcontrollers are hardware debug features that allow real-time monitoring of memory accesses. They can trigger breakpoints when a specified memory address is read from or written to, facilitating debugging of code execution and memory corruption issues. Overview of Watchpoint Comparators Arm Cortex-M microcontrollers have built-in debug capabilities to assist

The ARM Cortex series of processors are central processing units (CPUs) designed by ARM Holdings for use in a wide range of devices from smartphones to servers. They are based on the ARM instruction set and ARM microarchitecture. ARM Cortex-A Series The ARM Cortex-A series processors are designed for higher-end application processors and feature out-of-order