Sniffer on OSX - revisited

[David Elvig]

It looks like the last discussion of Sniffer on Devzone was 2-3 yrs ago.

I’ve ordered the nRF Dongle and will download the Windows-based nRF Sniffer app.

i can run this with WireShark on a Windows VM on my Mac, though I would like a Mac OSX option.

- Any news on that front?

- Any way the Bluetooth hardware built into the MacBook could serve a Mac Sniffer app?

thanks!

[David Elvig]

Still looking for a solution here.  I think a few others are having the same trouble.

Martin Lesund, what is the next steps?

[David Edwin]

Can you summarize your versions so I can look at it.

OS Version:
Wireshark version:
Python version:
Pyserial version:

Segger jlink version on PC:
Segger jlink version or build date on the jlink emulator on nRF5x-DK:

nRF Sniffer version:

PCA board number: 

=

Python 32 bit or 64 bit:

Use: 

import ctypes
ctypes.sizeof(ctypes.c_void_p)

8 -> 64 bit
4 -> 32 bit

[David Elvig]

Thanks!

Here's the config.   ?????? where I don't know how to look for it

OS Version:            OSX 10.13.3 (High Sierra)
Wireshark version: 2.4.5
Python version:      2.7.14
Pyserial version:    3.2.1

Segger jlink version on PC:    6.16c
Segger jlink version or build date on the jlink emulator on nRF5x-DK:               ??????

nRF Sniffer version:   nrf_sniffer_2.0.0-beta-1_51296aa

PCA board number:    
- PCA10040 (Dev Kit)
- PCA10031 (Dongle)

=

Python 32 bit or 64 bit:                                 ??????

Use: 

import ctypes                                                ??????
ctypes.sizeof(ctypes.c_void_p)                    ??????        

8 -> 64 bit                                                     ??????
4 -> 32 bit                                                     ??????

[David Edwin]

Segger jlink version or build date on the jlink emulator on nRF5x-DK: 

Look at the nRF Sniffer User guide v2.1 section "Verify that Jlink emulator firmware is correct version"

=

Find if the python program running on your computer is 32 bit or 64 bit:

type "python" to enter the python interpreter

Python 2.7.12 (v2.7.12:d33e0cf91556, Jun 27 2016, 15:19:22) [MSC v.1500 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
> import ctypes
> ctypes.sizeof(ctypes.c_void_p)
4

[David Elvig]

I don see the bit-ness of the python from this, though the physical machine is a 64-bit, intel-based Mac, less than a year old.

Davids-MacBook-Pro-2:~ davidelvig$ python
Python 2.7.14 (v2.7.14:84471935ed, Sep 16 2017, 12:01:12) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 

and ctypes...

>>> import ctypes
>>> ctypes.sizeof(ctypes.c_void_p)
8
>>> 

and jlinkexe in the OSC terminal app shows:

Davids-MacBook-Pro-2:~ davidelvig$ jlinkexe
SEGGER J-Link Commander V6.16c (Compiled Jun 16 2017 18:19:39)
DLL version V6.16c, compiled Jun 16 2017 18:19:20

Connecting to J-Link via USB...O.K.
Firmware: J-Link OB-SAM3U128-V2-NordicSemi compiled Jul 24 2017 17:30:12
Hardware version: V1.00
S/N: 682504093
VTref = 3.300V


Type "connect" to establish a target connection, '?' for help
J-Link>

Thanks a bunch for sticking with this!

Dave

[David Edwin]

You need to downgrade the firmware as stated in the nRF Sniffer User Guide v2.1. I see that the jlink emulator firmware is "J-Link OB-SAM3U128-V2-NordicSemi compiled Jul 24 2017 17:30:12", which is clearly not what was shipped with jlink 6.16c.

Use the section "Downgrade the J-Link emulator version on the hardware" in the nRF sniffer user guide v2.1 to downgrade.

Please do the downgrade and post the jlinkexe in the OS X terminal app again.