Confusion in Properties permission in the DA1469x_Custom_BLE_Service example

Hello Dialog,

I am testing the examples "BLE_Central" and the "DA1469x_Custom_BLE_Service" to achieve some communication between the GATT client and server. In the custom service example, in the peripheral_task.c, there are two services defined with one and thee characteristics respectively. Here, I have set some random permissions for the characteristics of the both services. Please find the log file attached below.

ÿÿð@BLE中央应用程序启动BLE中央应用程序启动@BLE中央应用程序启动@ble中央应用程序启动@ble中央应用程序启动@ vt_gap_connected：conn_idx = 0000 supple_evt_gattc_discover_svc：conn_idx = 0000 uuid = 0x1800 start_h = 0001 end_h = 0007 handle_evt_gattc_discover_svc：conn_idx = 0000UUID = 0x1801 start_h = 0008 end_h = 0008 handle_evt_gattc_discover_svc：conn_idx = 0000 UUID = 11111111-0000-0000-0000-111111111111 start_h = 0009 end_h = 000D handle_evt_gattc_discover_svc：conn_idx = 0000 UUID = 22222222-0000-0000-0000-222222222222 start_h = 000Eend_h = 0016 handle_evt_gattc_discover_completed：conn_idx = 0000 type = 0 status = 0 shower_t_gattc_discover_char：conn_idx = 0000 uuid = 0x2a00句柄= 0002 value_handle = 0003属性= 02（-----）supple_evt_gattc_discover_char：conn_idx = 0000 uuid = 0x2a01句柄= 0004 value_handle = 0005属性= 02（-----）supple_evt_gattc_discover_char：conn_idx = 0000 uuid = 0x2a04句柄= 0006 value_handle = 0007属性= 02（-----）hange_evt_gattc_discover_completed：conn_idx = 0000类型= 2 status = 0 shower_evt_gattc_read_completed：conn_idx = 0000把手= 0003 status = 0 43 75 75 73 74 6f 6d 20 42 4c 45 20 53 6f 6d 20 42 4c 45 20 53 65 72 76 69定制ble servi 63 65 ce handle_evt_gattc_discover_completed：conn_idx = 0000type = 2 status = 0 shower_evt_gattc_discover_char：conn_idx = 0000 uuid = 11111111-0000-0000-0000-00000000/0000-0000-000000000001句柄= 000a value_handle = 000b属性= 22（-R --- i--）supple_evt_gattc_discover_completed：conn_idx = 0000类型= 2状态= 0 handle_evt_gattc_discover_desc：conn_idx = 0000 UUID = 0x2901手柄= 000C handle_evt_gattc_discover_desc：conn_idx = 0000 UUID = 0x2902手柄= 000D handle_evt_gattc_discover_completed：conn_idx = 0000类型= 3个状态= 0 handle_evt_gattc_discover_char：conn_idx = 0000 UUID = 22222222-0000-0000-0000-000000000001 handle=000f value_handle=0010 properties=0a (-R-W----) handle_evt_gattc_discover_char: conn_idx=0000 uuid=22222222-0000-0000-0000-000000000002 handle=0012 value_handle=0013 properties=02 (-R------) handle_evt_gattc_discover_char: conn_idx=0000 uuid=22222222-0000-0000-0000-000000000003 handle=0015 value_handle=0016 properties=02 (-R------) handle_evt_gattc_discover_completed: conn_idx=0000 type=2 status=0 handle_evt_gattc_discover_desc: conn_idx=0000 uuid=0x2901 handle=0011 handle_evt_gattc_discover_completed: conn_idx=0000 type=3 status=0 handle_evt_gattc_discover_desc: conn_idx=0000 uuid=0x2901 handle=0014 handle_evt_gattc_discover_completed: conn_idx=0000 type=3 status=0 handle_evt_gap_disconnected: conn_idx=0000 address=06:06:06:01:01:01 reason=8 handle_evt_gap_connected: conn_idx=0000 handle_evt_gattc_discover_svc: conn_idx=0000 uuid=0x1800 start_h=0001 end_h=0007 handle_evt_gattc_discover_svc: conn_idx=0000 uuid=0x1801 start_h=0008 end_h=0008 handle_evt_gattc_discover_svc: conn_idx=0000 uuid=11111111-0000-0000-0000-111111111111 start_h=0009 end_h=000d handle_evt_gattc_discover_svc: conn_idx=0000 uuid=22222222-0000-0000-0000-222222222222 start_h=000e end_h=0016 handle_evt_gattc_discover_completed: conn_idx=0000 type=0 status=0 handle_evt_gattc_discover_char: conn_idx=0000 uuid=0x2a00 handle=0002 value_handle=0003 properties=02 (-R------) handle_evt_gattc_discover_char: conn_idx=0000 uuid=0x2a01 handle=0004 value_handle=0005 properties=02 (-R------) handle_evt_gattc_discover_char: conn_idx=0000 uuid=0x2a04 handle=0006 value_handle=0007 properties=02 (-R------) handle_evt_gattc_discover_completed: conn_idx=0000 type=2 status=0 handle_evt_gattc_read_completed: conn_idx=0000 handle=0003 status=0 43 75 73 74 6f 6d 20 42 4c 45 20 53 65 72 76 69 Custom BLE Servi 63 65 ce handle_evt_gattc_discover_completed: conn_idx=0000 type=2 status=0 handle_evt_gattc_discover_char: conn_idx=0000 uuid=11111111-0000-0000-0000-000000000001 handle=000a value_handle=000b properties=22 (-R---I--) handle_evt_gattc_discover_completed: conn_idx=0000 type=2 status=0 handle_evt_gattc_discover_desc: conn_idx=0000 uuid=0x2901 handle=000c handle_evt_gattc_discover_desc: conn_idx=0000 uuid=0x2902 handle=000d handle_evt_gattc_discover_completed: conn_idx=0000 type=3 status=0 handle_evt_gattc_discover_char: conn_idx=0000 uuid=22222222-0000-0000-0000-000000000001 handle=000f value_handle=0010 properties=0a (-R-W----) handle_evt_gattc_discover_char: conn_idx=0000 uuid=22222222-0000-0000-0000-000000000002 handle=0012 value_handle=0013 properties=02 (-R------) handle_evt_gattc_discover_char: conn_idx=0000 uuid=22222222-0000-0000-0000-000000000003 handle=0015 value_handle=0016 properties=02 (-R------) handle_evt_gattc_discover_completed: conn_idx=0000 type=2 status=0 handle_evt_gattc_discover_desc: conn_idx=0000 uuid=0x2901 handle=0011 handle_evt_gattc_discover_completed: conn_idx=0000 type=3 status=0

这些都是“许可特征s I have set.

const mcs_characteristic_config_t custom_service_1[] = { /* Initialized Characteristic Attribute */ CHARACTERISTIC_DECLARATION(11111111-0000-0000-0000-000000000001, CHARACTERISTIC_ATTR_VALUE_MAX_BYTES, CHAR_WRITE_PROP_DIS, CHAR_READ_PROP_DIS, CHAR_NOTIF_INDIC_EN, Initialized Characteristic, NULL, NULL, event_sent_cb), }; const mcs_characteristic_config_t custom_service_2[] = { CHARACTERISTIC_DECLARATION(22222222-0000-0000-0000-000000000001, CHARACTERISTIC_ATTR_VALUE_MAX_BYTES, CHAR_WRITE_PROP_EN, CHAR_READ_PROP_DIS, CHAR_NOTIF_NONE, Hello World, NULL, set_var_value_cb, NULL), CHARACTERISTIC_DECLARATION(22222222-0000-0000-0000-000000000002, CHARACTERISTIC_ATTR_VALUE_MAX_BYTES, CHAR_WRITE_PROP_DIS, CHAR_READ_PROP_EN, CHAR_NOTIF_NONE, Hello Dialog, get_var_value_cb, NULL, NULL), CHARACTERISTIC_DECLARATION(22222222-0000-0000-0000-000000000003, 0, CHAR_WRITE_PROP_DIS, CHAR_READ_PROP_DIS, CHAR_NOTIF_NONE, NULL, NULL, NULL, NULL), };

Please compare the permissions with attached output log. You can see that the properties for the only characteristic of the service 1 are printed as (-R---I--), even though I have disabled the Read property.

Coming to the second service characteristics, They are printed as (-R-W----), (-R------) and (-R------) for the three characteristics respectively which are in contrast with the permissions which I actually gave.

Only the second characteristc permissions of the second service is printed correctly according to what I gave.

I request you to investigate about why this happens and suggest me what can I do to avoid this conditions. This is very important for my application as I have to exchange data between the GATT client and the Server.

Thanks in advance.

Regards,

Prasanna