static __xdata uint8_t ao_radio_cmac_mutex;
__pdata int8_t ao_radio_cmac_rssi;
static __xdata uint8_t cmac_data[AO_CMAC_MAX_LEN + AO_CMAC_KEY_LEN + 2 + AO_CMAC_KEY_LEN];
-static __pdata uint8_t ao_radio_cmac_len;
static uint8_t
round_len(uint8_t len)