RE: Unable to detect BLE output from nRF52-dk

robertz — Mon, 04 Dec 2023 14:24:18 GMT

Hello,

I know that it isn't officially supported, but many people have gotten it to work in the past, so I was hoping I could as well. In terms of nRF connect-SDK, I did actually try using that at first, but nothing was even compiling, and the documentation for the image transfer demo requires nRF5 SDK. I have also made another post on this forum in the past where I was advised to use the nRF5 SDK.

I powered on my device this morning just for a sanity check, and after doing a full erase/recover and restarting my phones Bluetooth I'm still experiencing the connection issues.

I do think I may have been a bit unclear in my original post- I am able to get the normal SDK examples running on the companion app. I don't know exactly what they are supposed to be showing, but it definitely is connecting and looks like a reasonable data output. The problem is specifically with the image transfer demo. Based on the symptoms I was assuming it was a JLink version issue, but I don't really know what I'm doing.

RE: Unable to detect BLE output from nRF52-dk

Kenneth — Mon, 04 Dec 2023 13:51:11 GMT

Hello,

The image transfer demo is not a official supported example, but based on the description I think the first priority should be to get the normal sdk examples running again. For new development you should be using the nRF Connect SDK, since the nRF5 SDK is no longer recommeded for new development (unless you already have developed with it or have experience in developing with it).

If you still want to use the nRF5 SDK you can find some online tutorials useful in SES:
https://www.youtube.com/playlist?list=PLx_tBuQ_KSqGHmzdEL2GWEOeix-S5rgTV

Sometimes it may make sense to do a full erase of the nRF52840-DK by for intance: nrfjprog --recover or nrfjprog --eraseall

It may also be a good idea to remove the device from Android and turn Bluetooth OFF&ON again on the phone to clear any cache.

Kenneth