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Odd random L2CAP Fragment packets observed in Wireshark trace 0

Greetings! I am using Wireshark along with an nRF52840 dongle to monitor BLE traffic between a mobile app and connected peripheral and periodically I see some "L2CAP Fragment...
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0 replies

Started 3 hours ago
by Blue Five
Not Answered
LVGL sample failing to display properly on SHARP displayl 0

Hello, I am using the nRF54L15 board, and trying to connect to the Adafruit SHARP 400x240 monochrome LCD display . I got the display driver alone to function just fine after...
25 views

0 replies

Started 4 hours ago
by Zeke
Not Answered
MCUBoot DFU without device reboot 0

Hi, I am trying to perform a DFU using SMP over BLE. My setup has NSIB and MCUBoot enabled and thus I am able to perform DFU for MCUboot and Application using nrf device...
- software
- Evaluation
- nRF54L15
- dfu
16 views

0 replies

Started 5 hours ago
by Nilesh
Not Answered
Trying to use UART2 witn custom nrf9151 board non secure 0

Hi all, I'm trying to use uart2 on my custom nrf9151 board, but I'm stuck. As I understand, I use i2c1 so I can't use uart1 and i2c1in parallel, so here is why I wnt to...
28 views

0 replies

Started 6 hours ago
by simon884
Not Answered
Using NRFX SPIM and Zephyr SPI API's simultaneously 0

Hi - I am seeking clarification on a topic as I am a little unsure on the correct way to do things. I'm using an nRF52840 and porting an old Firmware from nRF5 SDK to NCS...
22 views

0 replies

Started 6 hours ago
by matthazley

Recent in Nordic blog

Writing BLE firmware with a few lines of code part 2

Nguyen Hoan Hoang

Second part of the series Writing Bluetooth LE firmware the easy way blog. This second part shows how to read and advertise the environment sensor data (BME280 using Motsai Neblina module and BME680 using…
- 3 Jan 2018
Intro to ShockBurst/Enhanced ShockBurst

Daniel Veilleux

The first generation of wireless PC accessories to achieve widespread success (the ones that shipped with a dongle in the box) adopted 2.4GHz radios because these radios offered the optimal trade-off between…
- 1 Jan 2018
Writing BLE firmware with a few lines of code

Nguyen Hoan Hoang

Writing a BLE firmware can now be done with a few lines of code. The code example bellow is all you need to write for a non-connectable BLE firmware that advertise a counter value every second in the…
- 29 Dec 2017
nrF52 Tutorial: ETM Instruction Trace with Keil MDK

Bob Boys

Hello I wrote a tutorial on using the nrF52 Development Kit with Keil MDK. www.keil.com/appnotes/docs/apnt_308.asp This document features essential debugging capabilities of the nrF52 series. ETM Instruction…
- 15 Dec 2017
One minute to understand BLE connection data package

viewtool

1.Profile During connection procedure of BLE, there are three packages: SCAN_REQ, SCAN_RSP 和 CONNECT_REQ。 SCAN_REQ： Scan request, issued by MASTER DEVICE, send to SLAVE DEVICE，sent by the Link Layer…
- 15 Dec 2017
One minute to understand BLE MTU data package

viewtool

1.Profile MTU: ATT Maximum Transmission Unit (MTU) is the maximum length of an ATT packet. The ATT MTU is defined by the L2CAP and can be anywhere between 23 and infinity. The implementation of the Bluetooth…
- 15 Dec 2017