Code and supporting materials for textbook Embedded Systems Fundamentals with ARM Cortex-M based Microcontrollers: A Practical Approach (on Embedded Dean blog: https://wp.me/P8uHuM-m)
For FRDM-KL25Z users, please follow the instructions in NXP/Tools/Keil MDK Installation - apnt_232_v3.2.pdf to set up and use the MDK ARM IDE and toolchain on your PC.