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nRF52840 Power profiling AES CBC 256 encryption - mbed TLS 0

Hello! I'm taking some performance metrics for encrypting data on my nRF52840 device and I was wondering if you might be able to help me. The goal is to see how long and...
- development
- software
- nrf52840
- s140
7 views

0 replies

Started 30 minutes ago
by LLTMBeahan
Not Answered
Antenna connection 0

Hi, why antenna trace is connected to mounting pad instead of feeding pad of antenna in thingy 91x We are designing our device based on this. We wish to be sure about...
11 views

0 replies

Started 1 hour ago
by Vivek
Not Answered
Error -105: Command connect_to_emu_with_snr executed for 89 milliseconds with result -105 ERROR: Unable to connect to a debugger 0

I've been trying to flash an nRF52840-DK with code that successfully builds on Segger. The Segger error is "Failed to connect to target." I updated the devkit firmware with...
12 views

0 replies

Started 2 hours ago
by royp
Not Answered
Configuring external flash and internal flash for MCU Boot, Little FS, and for settings with a custom board 0

I am trying to set up a w25q128 using SPI with a nrf5340 on a custom board and had a few questions. I have used DevAcademy as a reference as I do eventually want to set up...
- development
- software
- zephyr
- nRF5340
19 views

0 replies

Started 4 hours ago
by lcj
Not Answered
Device does not wake up on charge detect interrupt 0

I have a custom board with nRF52840. It draws power over USB and the data lines are connected as well USB is defined as follows in the dts cdc_acm_uart0: cdc_acm_uart0...
- development
- nrf52840
12 views

0 replies

Started 4 hours ago
by AndyM

Recent in Nordic blog

Building a BLE application step by step from scratch

Jocelyn Masserot

Hi all, I'm working on a blog explaining from scratch how to develop a BLE application with nRF518122 chip. Step by step, I explain the different aspects of the embedded system development in a GCC environment…
- 11 Feb 2016
Segger Embedded Studio blog post rev2 DEPRECATED

Michael Dietz

Depreceted see new blog post for new version of embedded studio here: https://devzone.nordicsemi.com/blogs/1032/segger-embedded-studio-a-cross-platform-ide-w-no-c/ #Introduction This post is an introductory…
- 4 Feb 2016
BLE-to-SB quadcopter bridge

Daniel Veilleux

[UPDATE (Feb 8, 2016): I have incorporated the feedback that I received from several link-layer wizards in Trondheim.] Last fall I purchased an inexpensive quadcopter that uses Nordic's ShockBurst (SB…
- 4 Feb 2016
nrfjprog, pynrfjprog - Intro, Mac OS X & Linux now supported, New Feature

Michael Dietz

#Highlights New release of nrfjprog, pynrfjprog, mergehex available at: http://www.nordicsemi.com/eng/Products/Bluetooth-Smart-Bluetooth-low-energy/nRF52832. Windows, OS X and Linux now supported. …
- 1 Feb 2016
Weird issue with pyserial flow control

Eirik Midttun

EDIT: It seems less weird now. See You will never guess how JLink deals with UART flow control for the full story. Working on some Python code to control nRF51 and nrF52 targets I encountered a strange…
- 29 Jan 2016
Comparing compilers/IDEs for development with nRF5x series devices

Michael Dietz

#Introduction All compilers ARE NOT created equal. Given the same c code, different compilers will generate machine code with varying performance & size. Generally the more efficient machine code (uses…
- 28 Jan 2016