CTL_STATUS_t ctl_ntp_init(void);
ctl_ntp_init initializes the NTP subsystem ready for use.
ctl_ntp_init returns CTL_NO_ERROR if the call was successful; i.e. the NTP callbacks were successfully registered with the UDP layer.
You must call call this after initializing the UDP subsystem with ctl_udp_init. NTP counts as one of your bound UDP ports.