Something is wrong when I merge BLE OTA and NUS together (with source code)

RE: Something is wrong when I merge BLE OTA and NUS together (with source code)

Joyop — Fri, 01 Jul 2022 09:42:45 GMT

Hi Hung Bui，

I added dfu again following the tutorial, it works well. Thank you!

Best wishes,

Joyop

RE: Something is wrong when I merge BLE OTA and NUS together (with source code)

Hung Bui — Tue, 28 Jun 2022 14:36:02 GMT

Hi Yao Jiao,

I won't be able to test your application right now.

But please check the return code from bt_nus_send() to see why it's printing out Failed to send data over BLE.

Please try to test using nRF Connect app, make sure you enable notification.

Please try to follow the tutorial that I pointed to.

RE: Something is wrong when I merge BLE OTA and NUS together (with source code)

Joyop — Tue, 28 Jun 2022 08:18:06 GMT

Hi Hung Bui,

Thanks for your reply.

[quote userid="2121" url="~/f/nordic-q-a/89320/something-is-wrong-when-i-merge-ble-ota-and-nus-together-with-source-code/374339"]Have you tried to follow the tutorial here: Add DFU support to your application [/quote]

I will tried to add DFU again by following this tutorial.

[quote userid="2121" url="~/f/nordic-q-a/89320/something-is-wrong-when-i-merge-ble-ota-and-nus-together-with-source-code/374339"]Could you explain what exactly happened when "NUS function is abnormal, sending over BLE failed." we need to know what exactly happened. Do you have any assertion ? [/quote]

Here in main.c, when BLE sending failed this log will be printed:

LOG_WRN("Failed to send data over BLE connection %d.", test_data_len);

I saw this log and didn't receive anything on my phone, so I judged that the sending is failed.

[quote userid="2121" url="~/f/nordic-q-a/89320/something-is-wrong-when-i-merge-ble-ota-and-nus-together-with-source-code/374339"]Did you test the application using a phone ? Please also try to test using a different phone because the phone may cache the att table and may not update the attribute table and this may explain why the NUS service doesn't work.[/quote]

Yes, I tested using my phone. I also tried other phones, it didn't work either.

Also, I would appreciate it if you could try to reproduce the problem based on main.c and prj.conf above.

Thanks again!

Best wishes,

Joyop

RE: Something is wrong when I merge BLE OTA and NUS together (with source code)

Hung Bui — Mon, 27 Jun 2022 11:52:21 GMT

Hi Yao Jiao,

Have you tried to follow the tutorial here: Add DFU support to your application

Could you explain what exactly happened when "NUS function is abnormal, sending over BLE failed." we need to know what exactly happened. Do you have any assertion ?

Did you test the application using a phone ? Please also try to test using a different phone because the phone may cache the att table and may not update the attribute table and this may explain why the NUS service doesn't work.

Please use nRF Connect app for testing and you can try to turn off and on Bluetooth to clear the cache.