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Last activity 2018-01-20 11:03:39 +0200 by Vitaly

ttl converter + NRF52832-QFAA-R7 (QFN48)

Hello. I have a ttl converter (https://goo.gl/images/uFSPHN). Can I write a hex file through it? What are the possibilities to program so as not to buy a debug card?

176
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no
votes
1
answer
Last activity 2018-01-18 01:28:05 +0200 by Ladasky

nRF52 USB-UART broke, half-duplex?

Hi there,

I have multiple PCA10040 boards, and about a year's worth of experience developing code for them. I have suddenly started to have problems with USB-UART connections. Not even Nordic's SDK example code (in ../examples/peripheral/uart ... (more)

25
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no
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no
answers
Last activity 2018-01-17 23:18:30 +0100 by Andres Zubillaga

MPU9255 + nrf52 (PCA10040)

Hello,

I am currently using SEGGER studio with SDK11 and the MPU9255 repository from https://github.com/Martinsbl/nrf5-mpu... . I followed the installation instructions in the repository. Then I installed Segger Studio and used the tutorial to develop in older ... (more)

30
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no
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no
answers
Last activity 2018-01-17 03:51:00 +0100 by Thomas

Test Driven Development (TDD) library recommendation for nrf52x

Hi everyone,

We are developing with Nrf52 and it's been a bit of a manual process for us to test our code, we use makefile so we were able to create a clunky system to run a test suite ... (more)

2k
views
7
votes
2
answers
Last activity 2018-01-17 03:47:51 +0200 by Rene

How to enable P0.09 and P0.10 as GPIO pins on the nRF52 instead of NFC pins?

Hi,

I'm using nrf52 custom board designed for our project,For this we have P0.09 and P0.10 as rx and tx used for uart, when i configured this two pins as rx and tx it is not ... (more)

57
views
1
vote
1
answer
Last activity 2018-01-16 15:39:52 +0200 by Muhammet YILDIZ

How to Firmware Update Over BLE

I am using keil 5, softdevice 132, sdk NRF_SD_BLE_API_VERSION=5, nRF52832.

I am trying to work with firmware update over ble.

In the example folder, there is an example called "buttonless dfu".

I am trying to implement it. But cant ... (more)

30
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no
votes
1
answer
Last activity 2018-01-15 10:36:02 +0200 by Bjørn Kvaale

Big picture view of using nRF52 as a BLE MIDI add-on

I have the nRF52 Dev Kit running now on Mac OS with SES. (for reference to this topic: click here)

My end result is to use the nRF52 chip as part of a MIDI wind controller. I use the Teensy ... (more)

25
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no
votes
1
answer
Last activity 2018-01-12 12:04:31 +0200 by Muhammet YILDIZ

Peer Manager and File Store

Hello.

Here is my conditations;

  • using ukeil 5.
  • sd132 Version 5.
  • sdk version 14,2,17b948a

In my project, i am using secure connection. So peer manager enabled.

I have some configurations that i need save somehow. But i dont ... (more)

35
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no
votes
1
answer
Last activity 2018-01-12 09:59:34 +0200 by Jørgen Holmefjord flag of Norway

NRF serial abstraction layer clarification

Can someone please explain the below line mentioned in NRF5 Serial port abstraction layer documentation.

Do not use synchronous API (timeout_ms parameter > 0) in IRQ context. It may lead to a deadlock because the timeout interrupt cannot preempt the current ...

(more)

49
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1
vote
1
answer
Last activity 2018-01-11 16:34:44 +0100 by seth

nRF52xxx Safe to use Dual-Band WiFi Antenna?

Hello,

I imagine this is a pretty common and basic question but I couldn't find anything online.

Since the nRF52xxx chips are single-band 2.4GHz (and possibly sub-GHz also), is it advisable to use a Dual-Band (2.4GHz + 5GHz ... (more)

96
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3
votes
1
answer
Last activity 2018-01-11 13:47:36 +0100 by Petter Myhre flag of Norway

Bonding Problem

Hello

I am trying to create secure connection between peripheral device and mobile app & central device.

I created my own custom service and want to make them secure.

But i am getting

<error> app: ERROR 2 [NRF_ERROR_SOFTDEVICE_NOT_ENABLED] at ......\main.c ...

(more)

40
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1
vote
1
answer
Last activity 2018-01-11 13:41:50 +0200 by shibshab

OTA DFU from OSX/Windows/Linux

Hi,

With the latest SDK v 14.2 is it possible to do OTA updates to nRF52 from OSX/Windows/Linux without the use of additional DK? I understand that for iOS and Android we can use nRFConnect or nRFToolbox ... (more)

46
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no
votes
1
answer
Last activity 2018-01-11 13:30:44 +0200 by Martin Børs-Lind flag of Norway

nRF52-DK PCB antenna radiation pattern [closed]

Hi,

I am looking for an illustration of the radiation pattern from the nRF52-DK PCB antenna.

A similar question was asked previously but in this case I am hoping to find something derived experimentally that I can cite in an ... (more)

76
views
3
votes
2
answers
Last activity 2018-01-11 08:00:47 +0200 by Ashish

Adding new driver in segger embedded studio

Hello everyone !!!

I've recently started working with Segger Embedded studio for nfr52840. I want to add a new driver into an existing projects.Let's say GPIOTE

  1. I added nrf_drv_gpiote.c in nrf_Drivers folder
  2. Enabled driver in sdk_config.h ...
(more)

108
views
no
votes
4
answers
Last activity 2018-01-11 02:03:42 +0200 by flyingfishfinger

Flash NRF52 on Windows with OpenOCD & FTDI

Hi, I'm trying to get OpenOCD flashing to work on Windows using the FTDI 2232H adapter and an NRF52 target. I found this site:

https://www.allaboutcircuits.com/technical-articles/getting-started-with-openocd-using-ft2232h-adapter-for-swd-debugging/

and set it up accordingly with OpenOCD 0.10 ... (more)

50
views
no
votes
no
answers
Last activity 2018-01-10 11:21:47 +0200 by puck

nrf52 disable debug by reset with eeprom locked

Hello,

I have a PCB with a NRF52 powered by batteries. We need to be able to plug the batteries, then program the device and never remove the batteries. We noticed, that currently, we have a consumption of about 1 ... (more)

67
views
no
votes
1
answer
Last activity 2018-01-10 10:49:04 +0100 by Hung Bui

How ble works

Hello.

I need some documents that i can understand what is going on on the backward when/while two devices are communicating with each other or when/while a device advertising.

I looked up to the bluetooth sig core spect ... (more)

37
views
no
votes
1
answer
Last activity 2018-01-09 13:47:44 +0200 by Jørgen Holmefjord flag of Norway

LSM9DS1 + NRF52 + I2C Initialization and readings

Hi Guys,

I hope that you could help me with issue which can be observed in my new "nRF52 setup". I've connect LSM9DS1 sensor to NRF52 DK. The "twi_scanner" example from SDK has been used firstly to eliminate problems ... (more)

63
views
no
votes
no
answers
Last activity 2018-01-09 13:45:07 +0200 by cirlam

App timer high current consumption

I have a need for an interrupt to go off at a 4khz rate. For this, I am using a repeated App Timer (running off the 32k crystal).

Prior to adding this extra timer, we used to have a power ... (more)

36
views
1
vote
1
answer
Last activity 2018-01-09 12:51:01 +0100 by Torbjørn Øvrebekk

SDK 14.2: use of ifdef NRF52 in nrf_esb.c

Looking through the ESB implementation in SDK 14.2, nrf_esb.c I notice it uses

#ifdef NRF52

on several places. In nrf.h, the "old" NRF52 gets re-defined as NRF52832_XXAA. This would mean, if I start a new project that ... (more)

58
views
2
votes
1
answer
Last activity 2018-01-09 08:25:48 +0100 by Martin Børs-Lind flag of Norway

SDK Migration - nrf_log back to experimental in SDK14.2

I'm using SDK 12.2 with Softdevice S132 V3.0. I try now the migration to the most resent SDK 14.2 with its Softdevice, because it seams there were several bugs fixed in between.

Despite of the migration ... (more)

34
views
no
votes
no
answers
Last activity 2018-01-07 20:45:26 +0100 by wizath

nrf52 gzll performance

Hi,

I want to change my gzll receivers from NRF51 to NRF52. But I've done some performance testing to see if it is really necessary. And here is my problem:

When using nrf52 gzll receiver, I'm getting only ... (more)

36
views
no
votes
no
answers
Last activity 2018-01-05 23:59:41 +0200 by BillyBobJoe

Cannot connect to J-Link via USB (Ubuntu on Win10)

I'm a newbie so sorry if these seem silly questions but I'm out of ideas.I have got some nRF52840 PDKs & nRF52 DK and am attempting to use Zephyr RTOS but I've run into issues.

I've ... (more)

64
views
1
vote
1
answer
Last activity 2018-01-05 11:16:43 +0200 by Torbjørn Øvrebekk

maximum baudrate nrf52 slower than BLE 5.0

Hi, we're starting to plan an update to BLE 5.0 (specifically the double bandwidth feature) on a product using the nRF521832 connected to an STM32. We were just testing increasing our internal communication speed, and realised the nRF52 ... (more)

24
views
no
votes
1
answer
Last activity 2018-01-05 09:02:47 +0200 by Jørgen Holmefjord flag of Norway

What SDK do I need to compile some blinky app with ANT?

I am new to nRF programming. My "far away goal" is to make a BLE sensor mesh with a centralised data collection.

Currently I am deciding what libraries to start playing with. ANT seems to be quite usable and so ... (more)

35
views
1
vote
1
answer
Last activity 2018-01-04 22:14:07 +0100 by Richard D.

Segger Base programmer flakeyness

We have our own custom board using nRF52832 (via Laird BL652 module). Until recently, we have been programming our application, bootloader and softdevice using the PCA10040 as jlink device. Flashing with Keil debugger, nRFgo Studio and nrfjprog.exe are all ... (more)

21
views
1
vote
1
answer
Last activity 2018-01-04 19:41:29 +0100 by Martin Børs-Lind flag of Norway

Missing include in ble_radio_notification.c [closed]

When using radio notifications, there are a few compiler warnings.

Compiling file: ble_radio_notification.c
../../../../nRF5_SDK_14.2.0_17b948a/components/ble/ble_radio_notification/ble_radio_notification.c: In function 'ble_radio_notification_init':
../../../../nRF5_SDK_14.2.0_17b948a/components/ble/ble_radio_notification/ble_radio_notification.c:67:16: warning: implicit declaration of function ...
(more)

47
views
no
votes
no
answers
Last activity 2018-01-04 11:08:12 +0200 by tomasz.szewczyk

NRF52-DK embedded serial port issues on Ubuntu

Hi!

I have some troubles with making embedded serial port working on NRF52-DK. Basically I can receive data sent by nrf chip but I cant write. When I write something using any terminal nothing happens on the board.

HOWEVER this ... (more)

41
views
no
votes
1
answer
Last activity 2018-01-02 07:19:31 +0200 by endnode

how to change beacon data when push the button with Sleep mode?

[SDK 12.3.0 / nrf52 DK / Keil tool / beacon example code]

Hello. i am a novice developer.

  1. Power On - Beacon data transmit and enter to sleep mode after 10 sec
  2. Button_1 Push - Beacon data Change and transmit(after 10 Sec ...
(more)

24
views
no
votes
no
answers
Last activity 2018-01-01 13:34:28 +0100 by Madan

nordic nrf52 sdk

we connecting our hardware nordic nrf52 to mobile application but its is not showing any Bluetooth enabled devices |

please let me know about sdk and how to test

Thanks Inadvance

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