DATA LENGTH EXTENTION request rejected by master(app).

RE: DATA LENGTH EXTENTION request rejected by master(app).

fenil.patel — Mon, 06 Apr 2020 12:40:50 GMT

Thanks, i will try

RE: DATA LENGTH EXTENTION request rejected by master(app).

Amanda Hsieh — Mon, 06 Apr 2020 07:42:56 GMT

Hi,

As I explained in the previous,
From the sniff trace, the master doesn't support DLE as it responds to LL_UNKNOWN_RSP to nordic's LL_LENGTH_REQ.

Did you try other phones which support DLE? If you still have the problem, could you upload the sniff log with the new phone from starting the connection?

-Amanda H.

RE: DATA LENGTH EXTENTION request rejected by master(app).

fenil.patel — Sun, 05 Apr 2020 06:21:54 GMT

Thank you for reply

But my problem not solve.

RE: DATA LENGTH EXTENTION request rejected by master(app).

Amanda Hsieh — Fri, 03 Apr 2020 09:00:11 GMT

Hi,

[quote user="fenil.patel"]so now what can i do? I have to work on the android side or anything else?[/quote]

You can choose an android device which supports DLE. Please see this post.

[quote user="fenil.patel"]i am using only this nrf_ble_gatt_data_length_set(&m_gatt, BLE_CONN_HANDLE_INVALID, 80) function is this right method to DLE?[/quote]

Yes, to set a new data length, you could use nrf_ble_gatt_data_length_set. A new data length can be set for an existing connection or before a connection is established by passing BLE_CONN_HANDLE_INVALID to nrf_ble_gatt_data_length_set.

-Amanda H.

RE: DATA LENGTH EXTENTION request rejected by master(app).

fenil.patel — Thu, 02 Apr 2020 11:55:54 GMT

so now what can i do? I have to work on the android side or anything else?

i am using only this nrf_ble_gatt_data_length_set(&m_gatt, BLE_CONN_HANDLE_INVALID, 80) function is this right method to DLE?

RE: DATA LENGTH EXTENTION request rejected by master(app).

Amanda Hsieh — Thu, 02 Apr 2020 08:54:04 GMT

Hi,

A smartphone can be BLE 4.2 qualified, and still not support Data Length Extension(DLE). DLE was introduced in 4.2, but DLE is not mandatory for a device to be 4.2 qualified.

-Amanda H.

RE: DATA LENGTH EXTENTION request rejected by master(app).

fenil.patel — Wed, 01 Apr 2020 10:17:47 GMT

Thank you for sharing information but i am using a device that has BLE 4.2 and android 9 version. but still, the issue is the same.

RE: DATA LENGTH EXTENTION request rejected by master(app).

Amanda Hsieh — Tue, 31 Mar 2020 08:18:36 GMT

Hi,

From the sniff trace, the master doesn't support DLE as it responds to LL_UNKNOWN_RSP to nordic's LL_LENGTH_REQ.

Please see this post and this post.

-Amanda H.

RE: DATA LENGTH EXTENTION request rejected by master(app).

fenil.patel — Mon, 30 Mar 2020 17:40:01 GMT

I am using s132 v6

RE: DATA LENGTH EXTENTION request rejected by master(app).

Amanda Hsieh — Mon, 30 Mar 2020 10:56:19 GMT

Hi,

What is the softdevice version you use?

-Amanda H.