ble-sniffer_win_1.2_nRF51822

[Stroker347]

The ble-sniffer_win_1.2_user_guide, Figure 4. Wireshark Interface, Packet Bytes window shows a 00 byte at location 0010, which corresponds to the "preamble" of the "Air Interface Packet" defined in Bluetooth Specification Version 4.2[Vol 6, Part B], Section 2. As defined in Section 2.1.1 Preamble, this byte should be either AA or 55 for an Advertising channel packet such as a CONNECT_REQ, which is what is being displayed in Figure 4 of the user guide. I have seen this same 00 byte for the preambles shown in Wireshark output figures for the Adafruit Bluefruit LE Friend nRF51822 Sniffer (which is pre-loaded with the Nordic ble_sniffer firmware) that I have ordered. I am wondering if there is a bug in the sniffer firmware or some limitation that prevents it from capturing or displaying this byte correctly, otherwise how could it be 00 since this doesn't conform to the Bluetooth Specification?

[Stroker347]

Amanda,

One more question:

Do you know if the nRF Sniffer V3 firmware will work with the Adafruit Bluefruit LE Friend Sniffer V2, which is based on the nRF51288 and comes preloaded with the nRF Sniffer V2 firmware?

Earlier versions of the Bluefruit LE Friend Sniffers came with a special version of the nRF V1 firmware that did not use the 32kHz clock, which the hardware did not have. I don't know if this is true for the V2 hardware.

If the V3 firmware will work I think I can reflash the hardware. I would rather use the V3 firmware since the V3 software interface to Wireshark works with Python 3.8 and its supporting modules which I already have installed. I would have to install Python 2.6 and its supporting modules in order to use the V2 firmware that comes preloaded.

Randy

[Amanda Hsieh]

Hi Randy,

Stroker347 said:

Do you know if the nRF Sniffer V3 firmware will work with the Adafruit Bluefruit LE Friend Sniffer V2, which is based on the nRF51288 and comes preloaded with the nRF Sniffer V2 firmware?

 Sorry, I don't know that. Not sure whether there is a version compatible issue or not.

-Amanda H.  

[Stroker347]

Maybe you can probably answer this then:

The preloaded Nordic firmware version is "sniffer_pca10028_51296aa.hex", from the "nrf_sniffer_2.0.0-beta-1_51296aa" package. Is there anything in the current firmware "sniffer_pca10028_c87e17d.hex" that might be incompatible with nRF51288 hardware that can run the beta package?

Randy

[Amanda Hsieh]

Hi Randy, 

Please see the Supported devices with nRF Sniffer for Bluetooth LE in the firmware package

• nRF52 Development Kit (PCA10040)
• nRF52840 Development Kit (PCA10056)
• nRF51 Development Kit (PCA10028)
• nRF51 Dongle (PCA10031)
• nRF51822 Evaluation Kit (PCA10001)
• nRF51422 Evaluation Kit (PCA10003) v3.0.0 or later
• nRF51822 Development Kit dongle (PCA10000)

You could try them.

-Amanda H.

[Stroker347]

In my previous question I meant to reference the current V3 "sniffer_pca10028_129d2b3.hex" firmware rather than the V2 "sniffer_pca10028_c87e17d.hex" firmware.

[Amanda Hsieh]

Hi, 

Not sure I understand correctly or not. If you could use V2 "sniffer_pca10028_c87e17d.hex" firmware, it should be fine to use V3 "sniffer_pca10028_129d2b3.hex" firmware.

-Amanda H.