About crwper

crwper · 2024-05-06

In `ble_defs.h`, we have the following security permissions for attributes:/* Security permissions for an attribute */ #define ATTR_PERMISSION_NONE 0x00U /* No security. */ #define ATTR_PERMISSION_AUTHEN_READ 0x01U /* Need authenticatio...

crwper · 2024-04-28

My application is a BLE peripheral with no display and no keyboard. When idling, the device advertises once every 1-2.5 seconds. When the user presses the button on the device, it goes into "pairing mode" and starts advertising once every 80-100 ms.W...

crwper · 2023-12-08

I'm working on a BLE application which uses a pair of BLE characteristics to transfer packets of data (similar to a cable replacement service). I believe I have followed the recommendations in AN5289 8.6.9 to mazimize throughput.When I read packets f...

crwper · 2023-12-06

I'm having an oddly difficult time seeing how to do something quite simple. In older CubeMX projects, the `Adv_Request` function looked like this: static void Adv_Request(APP_BLE_ConnStatus_t NewStatus) { tBleStatus ret = BLE_STATUS_INVALID_PARAMS;...

crwper · 2023-11-16

AN5669 seems to indicate that the BLE Object Transfer Service is available on STM32WB devices. Are there any technical documents or examples showing how this would be used in an STM32Cube application?

crwper · 2024-06-12

I suppose the question is this: The flags in `ble_defs.h` only allow me to require encryption for "read" and/or "write" operations. But Bluetooth specifies several different ways we can interact with a characteristic, which STM32_WPAN refers to as:Re...

crwper · 2024-05-08

Something I've just noticed, and I'm wondering if it's relevant. When I connect to my peripheral using a mobile device, I see the following as part of the debug output:Connection established with Central: @:59:65:27:a4:c0:c4 Address type: 01But then ...

crwper · 2024-05-08

I am having the exact same issue described above. Has anyone found a solution?ST: A working example of a whitelist application would be very helpful.

crwper · 2024-01-08

Thanks for your reply.I have confirmed that CFG_BLE_MAX_ATT_MTU is set to 250 in app_conf.h. This agrees with what we see in the Wireshark output. As I mentioned previously, we can see in those logs that the adapter on my PC requests an MTU of 527, a...

crwper · 2023-12-08

Thank you! I thought it might wind up there, but wanted to make sure that I wasn't missing a more elegant solution.

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How to require encrypted notifications in STM32_WPAN

How to use filter accept list

Unexpectedly small L2CAP fragment size in BLE data transfer

Advertising timeout and low power advertising with latest CubeMX

BLE Object Transfer Service on STM32WB5MMG

Re: How to require encrypted notifications in STM32_WPAN

Re: whitelist not working: Unable to connect after aci_gap_set_undirected_connectable

Re: whitelist not working: Unable to connect after aci_gap_set_undirected_connectable

Re: Unexpectedly small L2CAP fragment size in BLE data transfer

Re: Advertising timeout and low power advertising with latest CubeMX