NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

RE: NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

ip278116 — Thu, 19 Apr 2018 06:36:49 GMT

Hello. Log file is too big to post in here. You can just try it yourself. The code is in github.com/.../pc-ble-driver-js The 'responsTimeout' option is in the 'pc-ble-driver-js/api/adapter.js' so please change it to 1000 from 1500. I am not really sure why it become faster. Maybe the frequency of data transferring become faster when i change response time to 1 sec from 1.5 sec.

RE: NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

Bjørn Inge — Tue, 17 Apr 2018 10:31:20 GMT

Hi,

I would be interested in finding out more about why the ResponseTimeout has such an effect on the transfer time. Would it be possible for you to share the log file of nRF Connect (or pc-ble-driver-js, with debug log level) after a DFU?

RE: NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

ip278116 — Mon, 16 Apr 2018 00:20:26 GMT

Hello I could not use NRF sniffer with my nrf 51 dongle on windows 10. However, I modify "adapter.js", and it makes the DFU faster (It took 4 min and now it only take 2 min). In "open()" function in "adapter.js", I changed "ResponseTimeout" in options object to 1000 from 1500. If anyone has same issue with me in "pc-ble-driver-js" DFU, Please try my solution. I am not sure of the stability though.

RE: NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

Hung Bui — Mon, 09 Apr 2018 03:14:49 GMT

Hi,

I'm sorry indeed for the late response. I was on vacation. Do you still have problem getting the sniffer working ? We do have issue with the sniffer on some computers. You may want to try sniffer v1.0.

If you don't have the sniffer, you still can find the connection interval by looking for the connection parameter when you receive the BLE_GAP_EVT_CONNECTED event (either on the central or the peripheral).

We will try to have a look at the dfu.js and get back to you as soon as possible.

RE: NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

ip278116 — Fri, 30 Mar 2018 04:48:49 GMT

I installed the pyserial 3.4 version. Is it okay? now I can see the nrf sniffer menu in the wireshark interface toolbar. but when i click(check) it does not show any interfaces in the front page

RE: NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

ip278116 — Wed, 28 Mar 2018 23:27:19 GMT

I am using Windows 10 Home 64bit and I didnt have pyserial (which was not mentioned in Document). Should i install it in order to use Sniffer? I installed 6.16c successfully.

RE: NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

David Edwin — Wed, 28 Mar 2018 08:33:57 GMT

What is the OS version you are using with nRF Sniffer ? You have not mentioned the version of pyserial that you installed ? You should be using jlink 6.16c (not jlink 6.16) as mentioned in the documentation.

RE: NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

ip278116 — Wed, 28 Mar 2018 00:45:02 GMT

Okay Before I use the NRF sniffer I have several questions regarding to NRF sniffer installation. I follow the istruction in nRF_Sniffer_User_Guide_v2.1.pdf, I installed Wireshark 2.4.5, SEGGER jlink 6.16 and Python2.7.14 (python --version works!) and I moved all the required files to extcap folder. However, I could not see the interface toobar in View tab dropdown list. Am I doing something wrong? Also I failed to use NRF connect to scan devices after I downgraded to SEGGER jlink 6.16 too

RE: NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

Hung Bui — Tue, 27 Mar 2018 14:27:41 GMT

It's very hard to tell why without information about connection interval, number of packet per interval. A sniffer could really help. Please make sure you follow the documentation to know how to use the sniffer (the video is a little bit obsoleted) .

You can also find information about connection interval by debugging the DFU master and check which interval is used.

RE: NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

ip278116 — Tue, 27 Mar 2018 01:25:36 GMT

I am not sure how to use BLE sniffer application, seems like its not an executable file.

However When I try NRF connect on PC for DFU, it transfer the same file with 1.6 KB/sec speed.

I am pretty sure NRF connect is using same javascript code from 'pc-ble-driver-js' dfu.js code for DFU.

Why when I try DFU with 'pc-ble-driver-js', it transfer a same file much slower (600 bytes/sec) ?

RE: NRF 52 DK ble dfu VS Android NRF Connect DFU speed diifference

Hung Bui — Mon, 26 Mar 2018 12:17:06 GMT

Hi,

Have you checked the connection interval ?

If you have a BLE sniffer, can you check how many packets being sent in one connection interval ?

Have you tried to use the nRFConnect application on PC to do DFU ?

Would the reason is the same as discussed in this case (only one write command at a time)