About crwper

crwper · 2024-11-02

My STM32WB5MMG application interfaces with a GPS receiver. Ideally, what I would like to do is to update the RTC date/time every time I get a timepulse signal from the GPS, so that the RTC date/time is always as close as possible to GPS time. However...

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 · 2024-11-13

I get similar results to what you describe, but there are some details which might be important here. For my test, I have two characteristics:CRS_RX allows read and write without response, and has permissions ENCRY_READ and ENCRY_WRITE.CRS_TX allows ...

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...

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Set RTC without resetting HW timer server?

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

Re: How to require encrypted notifications in STM32_WPAN

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