Microcontroller Development Kit (MDK) for Armv8-M Architecture provides an integrated development environment (IDE) for developing embedded applications aimed at Arm Cortex-M processors including C/C++ compilers, various middleware components, as well as support for various debug adapters to connect to development boards.
 
Cortex Microcontroller Software Interface Standard (CMSIS) is a software framework for embedded Cortex-M applications including Real Time Operating Sytem (CMSIS-RTOS), over 60 functions for digital signal processing (CMSIS-DSP) and API support for peripheral driver interfaces (CMSIS-Driver).

It supports trace using Embedded Trace Macrocell (ETM), Embedded Trace Buffer (ETB), or Micro Trace Buffer (MTB). Support for TrustZone for Armv8-M architecture.