NXP Middleware NXP Kinetis SDK Middleware Software Pack Licenses.txt http://mcuxpresso.nxp.com/cmsis_pack/repo/ NXP CMSIS packs with updated Clear BSD license, based on MCUXpresso SDK 2.3.0. NXP CMSIS pack will maintain independent versioning starting with 10.0.0 FREERTOS Software Pack FreeRTOS, Real Time Operating System FreeRTOS, Real Time Operating System FreeRTOS, Real Time Operating System #define FSL_RTOS_FREE_RTOS #define SDK_OS_FREE_RTOS FreeRTOS gpt tickless FreeRTOS heap_1 allocator FreeRTOS heap_2 allocator FreeRTOS heap_3 allocator FreeRTOS heap_4 allocator FreeRTOS heap_5 allocator FreeRTOS template application