参考BLE5.3 使用1M 2M 500K或者 125Kbps通讯 - debugdabiaoge - 博客园 (cnblogs.com)修改为2M后nrf connet就显示N/A了，注释掉那几行就正常

代码如下

void?Peripheral_Init()?{
????Peripheral_TaskID?=?TMOS_ProcessEventRegister(Peripheral_ProcessEvent);

????//?Setup?the?GAP?Peripheral?Role?Profile
????{
????????uint8_t?initial_advertising_enable?=?FALSE;
????????uint16_t?desired_min_interval?=?6;
????????uint16_t?desired_max_interval?=?1000;

????????//?Set?the?GAP?Role?Parameters
????????GAPRole_SetParameter(GAPROLE_ADVERT_ENABLED,?sizeof(uint8_t),?&initial_advertising_enable);
????????GAPRole_SetParameter(GAPROLE_SCAN_RSP_DATA,?sizeof(scanRspData),?scanRspData);
????????GAPRole_SetParameter(GAPROLE_ADVERT_DATA,?sizeof(advertData),?advertData);
????????GAPRole_SetParameter(GAPROLE_MIN_CONN_INTERVAL,?sizeof(uint16_t),?&desired_min_interval);
????????GAPRole_SetParameter(GAPROLE_MAX_CONN_INTERVAL,?sizeof(uint16_t),?&desired_max_interval);
????}

//????//?set?to?2M
//????uint8_t?adv_type?=?GAP_ADTYPE_EXT_CONN_UNDIRECT;
//????GAPRole_SetParameter(GAPROLE_ADV_EVENT_TYPE,?sizeof(uint8_t),?&adv_type);
//????GAP_SetParamValue(TGAP_ADV_PRIMARY_PHY,?GAP_PHY_VAL_LE_2M);
//????GAP_SetParamValue(TGAP_ADV_SECONDARY_PHY,?GAP_PHY_VAL_LE_2M);

????//?Set?the?GAP?Characteristics
????GGS_SetParameter(GGS_DEVICE_NAME_ATT,?(uint8_t)?tmos_strlen((char?*)?attDeviceName),?(void?*)?attDeviceName);

????//?Set?advertising?interval
????{
????????uint16_t?advInt?=?DEFAULT_ADVERTISING_INTERVAL;

????????GAP_SetParamValue(TGAP_DISC_ADV_INT_MIN,?advInt);
????????GAP_SetParamValue(TGAP_DISC_ADV_INT_MAX,?advInt);
????}

????//?Setup?the?GAP?Bond?Manager
????{
????????uint32_t?passkey?=?0;?//?passkey?"000000"
????????uint8_t?pairMode?=?GAPBOND_PAIRING_MODE_WAIT_FOR_REQ;
????????uint8_t?mitm?=?TRUE;
????????uint8_t?bonding?=?TRUE;
????????uint8_t?ioCap?=?GAPBOND_IO_CAP_DISPLAY_ONLY;
????????GAPBondMgr_SetParameter(GAPBOND_PERI_DEFAULT_PASSCODE,?sizeof(uint32_t),?&passkey);
????????GAPBondMgr_SetParameter(GAPBOND_PERI_PAIRING_MODE,?sizeof(uint8_t),?&pairMode);
????????GAPBondMgr_SetParameter(GAPBOND_PERI_MITM_PROTECTION,?sizeof(uint8_t),?&mitm);
????????GAPBondMgr_SetParameter(GAPBOND_PERI_IO_CAPABILITIES,?sizeof(uint8_t),?&ioCap);
????????GAPBondMgr_SetParameter(GAPBOND_PERI_BONDING_ENABLED,?sizeof(uint8_t),?&bonding);
????}

????//?Initialize?GATT?attributes
????GGS_AddService(GATT_ALL_SERVICES);?????????//?GAP
????GATTServApp_AddService(GATT_ALL_SERVICES);?//?GATT?attributes
????ble_uart_add_service();
????BLE_EntryDFU_AddService();
????//?Register?with?Link?DB?to?receive?link?status?change?callback
????linkDB_Register(ble_HandleConnStatusCB);

????//?Init?Connection?Item
????peripheralInitConnItem(&peripheralConnList);

????//?Register?receive?scan?request?callback
????GAPRole_BroadcasterSetCB(&Broadcaster_BroadcasterCBs);

????//?Setup?a?delayed?profile?startup
????tmos_set_event(Peripheral_TaskID,?SBP_START_DEVICE_EVT);

????BLE_Processor_Init();
}

广播数据如下

//?GAP?-?SCAN?RSP?data?(max?size?=?31?bytes)
static?const?uint8_t?scanRspData[]?=?{
????????//?complete?name
????????8,?//?length?of?this?data
????????GAP_ADTYPE_LOCAL_NAME_COMPLETE,
????????'1',?'2',?'3',?'4',?'5',?'6',?'7',
????????//?connection?interval?range
????????0x05,?//?length?of?this?data
????????GAP_ADTYPE_SLAVE_CONN_INTERVAL_RANGE,
????????LO_UINT16(DEFAULT_DESIRED_MIN_CONN_INTERVAL),?//?100ms
????????HI_UINT16(DEFAULT_DESIRED_MIN_CONN_INTERVAL),
????????LO_UINT16(DEFAULT_DESIRED_MAX_CONN_INTERVAL),?//?1s
????????HI_UINT16(DEFAULT_DESIRED_MAX_CONN_INTERVAL),

????????//?Tx?power?level
????????0x02,?//?length?of?this?data
????????GAP_ADTYPE_POWER_LEVEL,
????????0?//?0dBm
};

//?GAP?-?Advertisement?data?(max?size?=?31?bytes,?though?this?is
//?best?kept?short?to?conserve?power?while?advertisting)
static?const?uint8_t?advertData[]?=?{
????????//?Flags;?this?sets?the?device?to?use?limited?discoverable
????????//?mode?(advertises?for?30?seconds?at?a?time)?instead?of?general
????????//?discoverable?mode?(advertises?indefinitely)
????????0x02,?//?length?of?this?data
????????GAP_ADTYPE_FLAGS,
????????DEFAULT_DISCOVERABLE_MODE?|?GAP_ADTYPE_FLAGS_BREDR_NOT_SUPPORTED,

????????//?service?UUID,?to?notify?central?devices?what?services?are?included
????????//?in?this?peripheral
????????0x05,??????????????????//?length?of?this?data
????????GAP_ADTYPE_16BIT_MORE,?//?some?of?the?UUID's,?but?not?all
????????0x59,
????????0xFE,
????????0x40,
????????0xFF
};

代码有点乱，可以看这个https://gist.github.com/kaidegit/839a8dc199aa6a7d5aa38c5b11c14636

你好，可以将设备名称存放在广播包中，按照扫描应答包配置名称的格式来写就可以了