Solved: It looks like ST LINK sleep support broke on IAR E... - STMicroelectronics Community
stm32 - how to add stm32l4s5 to IAR Embedded Work Bench? - Stack Overflow
ARM Microcontrollers Programming for Embedded Systems: STM32F4-Discovery CMSIS and HAL-API in IAR-EWARM or Keil-MDK eBook : Spanulescu, Sever: Amazon.co.uk: Kindle Store