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how to resolve this linker error in keilv5 0

Hi Hakon.... when i compile my project i get some linker errors, ._build\gzll_host_ack_payload.axf: Error: L6218E: Undefined symbol __main (referred from arm_startup_nrf51...
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0 replies

Started over 10 years ago
by ali zaidi
Not Answered
iOS and pairing 0

I'm trying to perform communication between my device and iOS and I ran into some problems. For tests I'm using iPod touch 5 with nRF Toolbox and LightBlue apps and nRF51822...
- pairing
- ios
5349 views

0 replies

Started over 10 years ago
by Nikita
Not Answered
Problems creating new MasterEmulator object v2.1.7 0

I've been using Master Emulator API 2.1.3 in Visual Studio 2010 Express, and have spotted a fix I may need in 2.1.5 so I've switched to using the 2.1.7 API. However, I've...
- create
- constructor
- vs2010
- v2.1.7
574 views

0 replies

Started over 10 years ago
by Hugh
Not Answered
How to clear/reset of the GPIO configuration before System ON mode 0

Hello,In normal condition, I use UART,pwm,spi an so on.Now I want to clear the configuration, and enter System ON mode.But I don't want to system reset. How should I do...
775 views

0 replies

Started over 10 years ago
by yao
Not Answered
multiple link using iPhone 0

Hi, everyone~ My goal is to collect data from 4 sensors simultaneously using iPhone. Now, my testing code for sensor nodes is working fine. It was built based on the...
- s120
- iphone
- multiple link
- beacon kit
- ble
- evaluation kit
- 110
- nrf51822
962 views

0 replies

Started over 10 years ago
by shuoyu_ding

Recent in Nordic blog

ble_app_hrs_freertos running in Atollic TrueSTUDIO

jmag999

This post describes how you can get the ble_app_hrs_freertos example project running in Atollic TrueSTUDIO 8.0 on a pca10040 board. This is a managed make build, it does not rely on the makefile provided…
- 14 Aug 2017
OLED display support for nRF52832 (SSD1306, Adafruit GFX)

Mahesh Venkitachalam

Just a quick post to say that we have ported the Adafruit GFX and SSD1306 libraries to nRF52832. Currently only I2C is supported. The code can be found here: https://github.com/electronut/ElectronutLabs…
- 11 Aug 2017
I tried 5 different debugger IDEs for nRF52 and STM32. Here are my results.

Jonathan

At Jumper we’re developing tools that increase the happiness levels of embedded software developers. Our main tool to date is the Jumper Emulator. As a part of the development process we’re required to…
- 9 Aug 2017

Latest guides

nRF5x: Current measurement guide: Introduction

Stian Røed Hafskjold

###Other relevant posts A concise guide to equipment setup, and how to use the development kit for current measurements can be found here: Measuring current with PCA10040 v0.9.0 A post that describes…
- 1 Dec 2015
nRF5x: General PCB design guidelines for nRF51 series

Petter Myhre

When designing a PCB with nRF51, nRF51822 or nRF51422, there are some rules that should be followed in order to get a good working radio/system, with a maximized range. General rule The RF part of the…
- 13 Nov 2015
Software Development Kit: nRF5 SDK Scheduler Tutorial

Einar Thorsrud

2019-02-08: Updated tutorial to cover nRF5 SDK version 15.2. Introduction Scope The following topics will be included in this tutorial: Configuration of the Scheduler library. Using the scheduler with…
- 9 Nov 2015
Bluetooth low energy: Bluetooth low energy central tutorial

Anders Strand

Scope Topics that will be covered include: Before we begin Necessary equipment and software Necessary prior knowledge Setting up the example projects Background theory Central and peripheral roles…
- 4 Nov 2015
Software Development Kit: nRF5 SDK Application Timer Tutorial

Einar Thorsrud

2018-11-23: Updated tutorial to cover SDK version 15.2. 2019-02-08: Improved example project (SDK 15.2) and updated instructions accordingly. Introduction Scope The following topics will be included in…
- 30 Oct 2015
Bluetooth low energy: Bluetooth low energy Services, a beginner's tutorial

MartinBL

Before we begin Scope Topics that will be covered include: Before we begin Necessary equipment and software Necessary prior knowledge Some basic theory The Generic Attribute Profile (GATT) Services…
- 26 Aug 2015