-extern __xdata struct ao_packet_recv ao_rx_packet;
-extern __xdata struct ao_packet ao_tx_packet;
-extern __xdata struct ao_task ao_packet_task;
-extern __xdata uint8_t ao_packet_enable;
-extern __xdata uint8_t ao_packet_master_sleeping;
-extern __pdata uint8_t ao_packet_rx_len, ao_packet_rx_used, ao_packet_tx_used;
-extern __xdata uint8_t ao_packet_restart;
+extern struct ao_packet_recv ao_rx_packet;
+extern struct ao_packet ao_tx_packet;
+extern struct ao_task ao_packet_task;
+extern uint8_t ao_packet_enable;
+extern uint8_t ao_packet_master_sleeping;
+extern uint8_t ao_packet_rx_len, ao_packet_rx_used, ao_packet_tx_used;
+extern uint8_t ao_packet_restart;