MAC: Update frame counter for asynch frames

Author: Jarkko Paso

source/MAC/IEEE802_15_4/mac_mcps_sap.c

@@ -1524,7 +1524,7 @@ static int8_t mcps_generic_packet_build(protocol_interface_rf_mac_setup_s *rf_pt
         //Remember to update security counter here!
         uint32_t new_frameCounter = mac_mlme_framecounter_get(rf_ptr);
         // If buffer frame counter is set, this is FHSS channel retry, update frame counter only if something was sent after failure
-        if ((buffer->aux_header.frameCounter == 0xffffffff) || ((new_frameCounter - buffer->aux_header.frameCounter) > 1)) {
+        if ((buffer->aux_header.frameCounter == 0xffffffff) || buffer->asynch_request || ((new_frameCounter - buffer->aux_header.frameCounter) > 1)) {
             buffer->aux_header.frameCounter = new_frameCounter;
             increment_framecounter = true;
         }