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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
3 views

0 replies

Started 13 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...
9 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...
10 views

0 replies

Started 1 hour 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

nRF5 SDK for Eddystone introduced

ketil

Recently, Google introduced some news about Eddystone. At the same time, we released a first implementation of the new specification on GitHub to get developers started. I would like to share some insights…
- 26 Apr 2016
nRF52 Online Power Profiler

Stian Røed Hafskjold

We in the Nordic Support team have created an online power profiler to estimate the power consumption during a BLE event with different parameters. The profiler gives you information about the different…
- 26 Apr 2016
Debugging nRF52 series devices using Trace

Michael Dietz

#Why use trace "Embedded Trace Macrocell (ETM) allows to capture information on the processor’s state without affecting the processor’s performance. Microcontrollers that include an ETM allow detailed…
- 20 Apr 2016
BBC micro:bit rolling out now!

John Leonard

Now delivering into kids hands in UK BBC micro:bit has, as I write this, been delivered into the hands of 450 000 UK schoolchildren with a further 500 000+ to be handed out over the next couple of weeks…
- 16 Apr 2016
nRF51822 now available as ultra- thin CSP variant

John Leonard

The award winning nRF51822 is now available as an ultra-thin Chip Scale Package) CSP variant. Measuring just 3.38mm x 3.38mm and with a height profile (including ball grid array) of just 0.35mm it is tiny…
- 15 Apr 2016
Fast Updates of User Code on nrf51822 with bluz

eric ely

Bluetooth LE is not a fast wireless protocol, transfer speeds are usually measured in single-digit to low tens of kilobytes per second. This is generally not an issue unless large amounts of data need…
- 13 Apr 2016