关于在服务下自定义属性的问题

你好，
1）在某一服务下定义新的属性，比如电池服务，新增上报频率等等新的属性，发现手机端看到新增属性，只有我定义的UUID，而没有具体属性名（或称之为描述），请问这个是不是该手机端定义的？
/// Full BAS Database Description - Used to add attributes into the database
const struct attm_desc bas_att_db[BAS_IDX_NB] =
{
// Battery Service Declaration
[BAS_IDX_SVC] = {ATT_DECL_PRIMARY_SERVICE, PERM(RD, ENABLE), sizeof(bas_svc),
sizeof(bas_svc), (uint8_t *)&bas_svc},

// Battery Level Characteristic Declaration
[BAS_IDX_BATT_LVL_CHAR] = {ATT_DECL_CHARACTERISTIC, PERM(RD, ENABLE), sizeof(bas_batt_level_char),
sizeof(bas_batt_level_char), (uint8_t *)&bas_batt_level_char},
// Battery Level Characteristic Value
[BAS_IDX_BATT_LVL_VAL] = {ATT_CHAR_BATTERY_LEVEL, PERM(RD, ENABLE), sizeof(uint8_t),
0, NULL},
// Battery Level Characteristic - Client Characteristic Configuration Descriptor
[BAS_IDX_BATT_LVL_NTF_CFG] = {ATT_DESC_CLIENT_CHAR_CFG, PERM(RD, ENABLE)|PERM(WR, ENABLE), sizeof(uint16_t),
0, NULL},
// Battery Level Characteristic - Characteristic Presentation Format Descriptor
[BAS_IDX_BATT_LVL_PRES_FMT] = {ATT_DESC_CHAR_PRES_FORMAT, PERM(RD, ENABLE), sizeof(struct prf_char_pres_fmt),
0, NULL},
};

2）我增加属性超过16个，发现通过手机去访问我新增的部分属性，APP会停止工作，这种情况一般是什么原因？因为我同事新建了很多，但并不是都异常，只是部分异常。我阅读这个为属性分配DB的代码解释，发现最多是可以支持32种属性的。那这可能还有哪些原因呢？
/**
****************************************************************************************
* @brief Function use to ease service database creation.
*
* Use @see attmdb_add_service function of attmdb module to create service database,
* then use @see attmdb_add_attribute function of attmdb module to create attributes
* according to database description array given in parameter.
*
* @note: database description array shall be const to reduce memory consuption (only ROM)
* @note: It supports only 16 bits UUIDs
*
* @param[in|out] shdl Service start handle.
* @param[in|out] cfg_flag Configuration Flag, each bit matches with an attribute of
* att_db (Max: 32 attributes); if the bit is set to 1, the
* attribute will be added in the service.
* @param[in] max_nb_att Number of attributes in the service
* @param[in|out] att_tbl Array which will be fulfilled with the difference between
* each characteristic handle and the service start handle.
* This array is useful if several characteristics are optional
* within the service, can be set to NULL if not needed.
* @param[in] dest_id Task ID linked to the service. This task will be notified
* each time the service content is modified by a peer device.
* @param[in|out] att_db Table containing all attributes information
*
* @return Command status code:
* - @ref ATT_ERR_NO_ERROR: If database creation succeeds.
* - @ref ATT_ERR_INVALID_HANDLE: If start_hdl given in parameter + nb of attribute override
* some existing services handles.
* - @ref ATT_ERR_INSUFF_RESOURCE: There is not enough memory to allocate service buffer.
* or of new attribute cannot be added because all expected
* attributes already added or buffer overflow detected during
* allocation
****************************************************************************************
*/
uint8_t attm_svc_create_db(uint16_t *shdl, uint8_t *cfg_flag, uint8_t max_nb_att,
uint8_t *att_tbl, ke_task_id_t const dest_id,
const struct attm_desc *att_db);

谢谢，如果能提供一些自定义属性的例子就更好了。