hal_start_threads - Allow HAL threads to begin executing
hal_start_threads starts all threads that have been created. This is the point at which realtime functions start being called.
hal_stop_threads stops all threads that were previously started by hal_start_threads. It should be called before any component that is part of a system exits.
Returns a HAL status code.
hal_export_funct(3hal), hal_create_thread(3hal), hal_add_funct_to_thread(3hal)