Hi All, It is an advantage to write/debug early code using VS and the freertos win32 simulator when the final target device will be an ARM device. Unfortunately there is no CMSIS wrapper to be able to use the CMSIS-style API calls to freeRTOS using the simulator. You need to use the freertos-style functions such as xTaskCreate() instead of the CMSIS style “osxxxx()”. I know there are ARM specifics within CMSIS such as register bits, but to be able to mimic CMSIS within the win simulator would be a great help – even if we have to code around some ARM specifics. Has anyone done this (a wrapper etc) for the simulator? Thx Jason