NRF51 Dongle hangs at sd_rpc_open for both c & python code

RE: NRF51 Dongle hangs at sd_rpc_open for both c & python code

jiadong — Wed, 20 Apr 2016 13:08:22 GMT

Hi, Aryan. I have not test it out yet, but cannot be more grateful for your time and help. I will give u feedback asap, once I fix the bug. Thank you again. Jiadong.

RE: NRF51 Dongle hangs at sd_rpc_open for both c & python code

Susheel Nuguru — Wed, 20 Apr 2016 12:57:50 GMT

Hi jiadong,

I contacted the moderator of that github repo. This is his reply

"There is one known issue with the driver, and that is that you have to press reset before open, because of a communication protocol issue between connectivity firmware and driver. The firmware and PC side get out of sync (there are sequence numbers that must match). "

Also you seem to be using Adafruit Bluefruit LE.. Sometimes the Segger chip also needs a power-cycle to work.

RE: NRF51 Dongle hangs at sd_rpc_open for both c & python code

jiadong — Wed, 20 Apr 2016 11:55:06 GMT

Hi, Aryan. Really thank you for your time. :-) For your reference, the driver I am using is github.com/.../pc-ble-driver.

RE: NRF51 Dongle hangs at sd_rpc_open for both c & python code

Susheel Nuguru — Wed, 20 Apr 2016 11:21:35 GMT

Do not know what else could it be if those things did not help. do you mean you are using osx_0.5.0?

RE: NRF51 Dongle hangs at sd_rpc_open for both c & python code

jiadong — Wed, 20 Apr 2016 11:03:12 GMT

Hi, Aryan. I've also checked this work around, and it did not work for me either (even restarting does not work). I am using osx_0.0.0 driver, and I don't know whether it is hardware issue or driver problem.

RE: NRF51 Dongle hangs at sd_rpc_open for both c & python code

Susheel Nuguru — Wed, 20 Apr 2016 10:25:12 GMT

Hi jiadong,

which version of driver are you using? I see that there has been some issues if your app have crashed before closing the driver, then it wont be able to open it again. There is a workaround for it here. I am not sure if this is being fixed. Can you please check the workaround and see if that worked?

RE: NRF51 Dongle hangs at sd_rpc_open for both c & python code

jiadong — Wed, 20 Apr 2016 10:17:22 GMT

Hi, Aryan. I have read the post before, but unfortunately, it did not work for me.

RE: NRF51 Dongle hangs at sd_rpc_open for both c & python code

Susheel Nuguru — Wed, 20 Apr 2016 10:11:51 GMT

Please check if this post helps.