Nordic DevZone

Recent and unreplied - Help your fellow developer and earn points!

Not Answered
nPM1300 I2C SCL Tf & Tlow timing 0

Hi According I2C standard, there is a requirement regarding falling speed of SCL/SDA which is > 20*1.8/5.5=6.54ns, and our measurement result of Tf on SCL is 5.732ns. ...
10 views

0 replies

Started 5 hours ago
by Poki Huang
Not Answered
Custom board with nRF5340: after reset firmware does not run and SWD is locked 0

I'm using ncs 3.2.1 with a custom board (Holyiot-20046-v1.0). I used the "Create a new board" function in nRF Connect VSCODE to create the board file. I copied the Zephyr...
12 views

0 replies

Started 6 hours ago
by denis
Not Answered
Xiao Seeed nRF52840 Sense - problem reading microphone data 0

Hi all, I am having difficulties reading microphone data using built-in microphone at Xiao Seeed nRF52840 Sense. I have configured the overlay file as suggested here . Then...
19 views

0 replies

Started 9 hours ago
by jaroslav.psenicka
Not Answered
board failed after update mfw_nrf9151-ntn_1.0.0-1.alpha firmware 0

I Just got nRF9151 SMA board, try to test NTN feature , after following instruction to update so called "alpha" firmware, somehow the board can not reflash back to any vesion...
21 views

0 replies

Started 9 hours ago
by SimonLou
Not Answered
nRF5340 PDM CLK waveform 0

Hi We use nRF5340, set GPIOs as PDM for DMIC device, and measure waveform as below The PDM DATA high level will decrease periodically Is this waveform normal? If yes...
32 views

0 replies

Started 6 days ago
by Poki Huang

Recent in the DevZone Blog

6LoWPAN Ubuntu VM Linux Image

hirotakaster

Hi, guys. nRF51 IoT SDK is needed Raspberry Pi, so I make the VMware Player Image for Ubuntu 14.04.1 LTS 64bit(linux kernel update to 3.18.3). Even if don’t have Raspberry Pi, can use the 6lowpan!! And…
- 7 Feb 2015
Recent updates to RKNRFGO

RK

I've recently updated some of the functionality on RKNRFGO, the OSX app which programs code and softdevices onto the Nordic dev boards. The latest is V 1.0.9 and can be obtained from Sourceforge. …
- 4 Feb 2015
Getting started with micro-ESB on nRF51

Audun

micro_esb_wireless_uart.zip---------- Proprietary protocols on the nRF51 Although Bluetooth Smart is designed for low power operation and is a great way of connecting your things to a phone or other…
- 2 Feb 2015
Using Nordic's SDKs with the GNU G++ Compiler

Andrew Fernandes

A persistant problem that people using the C++ compiler from the "GNU Tools for ARM Embedded Processors" toolchain has been the way that G++ handles the inline-assembly for the SVC instruction. Specifically…
- 30 Jan 2015
How to user the DFU in the iOS

Jason

The article introduces how to use the OTA (over the air) DFU in iOS. Step1, Connect your iOS device to iTune Select Apps, Drop App List to bottom, and select the “nRF Toolbox” app in the “File…
- 17 Jan 2015
Documentation and Resources for Eclipse Development

Peter

You have your choice of development tools for working with the Nordic nRF51x22 chips. If you want to use Eclipse + GCC for development, there are some app-notes and blog posts to help you on the way. …
- 8 Jan 2015