If anyone here is looking for a solution to HAL_Delay blocking due to Systick ISR not working, refer to this thread. SysTick interrupt does not work - STMicroelectronics Community  @Amel NASRI My Nucleo G474RET6U had nSWBOOT0 configured low, then I b...

For anyone like me who wants more of an explanation to this solution, here is what the problem is and how I fixed it.Problem:The systick interrupt is not working because the MCU would bootup in system memory and the vector table was not properly mapp...