CMSIS-Core Device Templates describes the files of the CMSIS-Core (Cortex-M) in detail and explains how to adapt template files provided by Arm to silicon vendor devices.Using TrustZone® for Armv8-M describes how to use the security extensions available in the Armv8-M architecture.Using CMSIS in Embedded Applications describes the project setup and shows a simple program example.The following sections provide details about the CMSIS-Core (Cortex-M): A variable to determine the system clock frequency which simplifies the setup the SysTick timer.Intrinsic functions used to generate CPU instructions that are not supported by standard C functions.For example, the standardized SystemInit() function is essential for configuring the clock system of the device. Methods for system initialization to be used by each MCU vendor.This includes naming conventions for device-specific interrupts. Methods to organize header files that makes it easy to learn new Cortex-M microcontroller products and improve software portability.
System exception names to interface to system exceptions without having compatibility issues.Hardware Abstraction Layer (HAL) for Cortex-M processor registers with standardized definitions for the SysTick, NVIC, System Control Block registers, MPU registers, FPU registers, and core access functions.CMSIS-Core (Cortex-M) implements the basic run-time system for a Cortex-M device and gives the user access to the processor core and the device peripherals.
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