BLE 4.2 softdevice s132

[Justin]

I need BLE 4.2 softdevice and SDK for PCA10056 PD board. I don't want 5.0 and restrict to 4.2.

Please let me know from where can I download the one.

[Justin]

The application doesn't have bonding or key exchange. All these features are disabled.

[Edvin]

Any luck with the nRF Sniffer yet?

Is it possible to reproduce the connection that you want to sniff using a DK?

Another thing that is supported in BLE5.0 is longer MTU in the packets (longer payload per packet, basically), but this was also available in BLE 4.2 (and even before this). However, it is not mandatory to support this. E.g. the softdevice for the nRF51 series only supports 23 bytes, while the Softdevice for the nRF52 supports 251 bytes. Maybe this is what your sniffer can't follow?

Search for NRF_SDH_BLE_GATT_MAX_MTU_SIZE in your nRF project, and try to set it to 23, and see if your sniffer can follow then.

Now, this would possibly start to change the behavior of your application (it may not), but if you are sending a lot of data, decreasing this variable will reduce the performance, so it might not behave as it does with NRF_SDH_BLE_GATT_MAX_MTU_SIZE = 247.

I recommend giving the nRF Sniffer a go.

Best regards,

Edvin

[Justin]

Hi Edvin,

I couldn't get through the nRF sniffer. I do have PCA10056 ad trying to use it as nRF sniffer.

In this forum I find all broken information regarding the sniffer and I am lost in it. Can you please point me to the exact and genuine source from which I can get the nRF sniffer rolling?

I did tried changing NRF_SDH_BLE_GATT_MAX_MTU_SIZE to 23 bytes but it still didn't work. 

works only when the controller is at BLE 4.2. If the controller/master uses 5.0 I am not able to sniff. 

I would definitely like to evaluate nRF sniffer if that can suffice my needs.

Regards,

Justin

[Edvin]

Hello Justin.

I recommend following the user guide from infocenter:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fstruct_nrftools%2Fstruct%2Fnrftools_nrfsniffer.html&cp=6_4

and downloading the latest version of the nRF Sniffer from here:

https://www.nordicsemi.com/?sc_itemid=%7B655FA723-4404-4FBE-8062-7C5C5DCDF36E%7D

Following the guide, where do the issues appear?

Best regards,

Edvin