Disable fhss compensation at parent selection if fixed channel mode is enabled for broadcast.

Change-Id: I33afd2ce069c932f5f477f11f8450cd6515e5a08

Author: Juha Heiskanen

source/Service_Libs/fhss/fhss_ws.c

@@ -807,7 +807,8 @@ int fhss_ws_set_parent(fhss_structure_t *fhss_structure, const uint8_t eui64[8],
     platform_exit_critical();
     //TODO: support multiple parents
     fhss_structure->ws->parent_bc_info = bc_timing_info;
-    if (prev_synchronization_time) {
+    if (prev_synchronization_time && fhss_structure->ws->fhss_configuration.ws_bc_channel_function != WS_FIXED_CHANNEL) {
+        //TODO: Compensation for fixed channel configuration
         if (SYNCH_COMPENSATION_MIN_INTERVAL <= US_TO_S(time_since_last_synch_us)) {
             // Update clock drift
             fhss_structure->ws->drift_per_millisecond_ns += divide_integer(MS_TO_NS((true_bc_interval_offset - own_bc_interval_offset) + ((int32_t)(fhss_structure->ws->bc_slot - own_bc_slot) * bc_timing_info->broadcast_interval)), US_TO_MS(time_since_last_synch_us));