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Last activity 2017-03-31 00:27:34 +0100 by Heath Fisken flag of Netherlands

Buy FX CBD Vape Oil

It does not matter what is injuring you today, chances are very good that the finest CBD oil-can help alleviate your discomfort or bolster the body. A lot of people nowadays are discovering that the medications they have been prescribed ... (more)

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Last activity 2017-03-31 00:18:43 +0200 by ypearson

DFU buttonless + stock secure bootloader

I've put on the stock dfu/bootloader_secure on the nrf52 DK.

I've then create a distribution ZIP and upload a blinky app to the DK. That worked fine.

Then I compiled experimental_ble_buttonless_dfu, made a ZIP and uploaded it ... (more)

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Last activity 2017-03-31 00:10:34 +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)

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Last activity 2017-03-30 22:51:20 +0100 by Gerry

How can I connect two nRF52840 to transfer large data files?

Hello, Would you have application that can support two nRF52840 pairing and transfer arbitrary large data files?

Thanks, Gerry

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Last activity 2017-03-30 22:31:07 +0100 by aras flag of Canada

Concurrent peripheral and advertising s110

Our nRF51822, S110 device uses concurrent advertising (iBeacons) when connected to the central. Our customer would like to have a variable tx power on the advertising packets only. Is there any way we could do this?

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Last activity 2017-03-30 22:28:03 +0100 by SRA

Cryptocell and future products vs MicroECC

So... As I understand it, micro-ECC is a free library that lets you create an ECC private key for signing the SecureDFU that Nordic is using.

The nrf52840 has Cryptocell 310 which has ECC hardware.

To the best of my ... (more)

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Last activity 2017-03-30 21:00:12 +0100 by lbehhhh

Example code utilizing softdevice will not work properly with IAR compiled hex

Hello,

I have an issue regarding using IAR tools with the examples provided in SDK v13.

I have:

Issue ... (more)

3
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Last activity 2017-03-30 20:37:01 +0100 by ypearson

buttonless DFU sdk12.2 hangs

It appears this example hangs after the following call. Does the experimental 12.2 buttonless DFU work ok?

SOFTDEVICE_HANDLER_INIT(&clock_lf_cfg, NULL);

22
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1
answer
Last activity 2017-03-30 19:04:28 +0100 by ypearson

DFU bootloader doesn't load the my application

I loaded the bootloader on the device and it always advertises as DfuTarg even after loading a application that simply blinks an LED. It doesn't seem to switch to the application after uploading the DFU zip from my phone ... (more)

43
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1
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answers
Last activity 2017-03-30 19:01:14 +0100 by 639zw

Memory Protection and PinReset Configuration with OpenOCD

I am trying to set the Memory protection bit and PinReset configuration with OpenOCD. I have applied the NRF52 patch (outlined here: https://devzone.nordicsemi.com/questi... )

I am able to program .hex files to an NRF52 after running nrfjprog ... (more)

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Last activity 2017-03-30 18:26:07 +0100 by parthee

nRF51822 - arduino beginner

Am beginner of nRF51822, please suggest programming tool and tutorial links.

48
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1
vote
2
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Last activity 2017-03-30 18:13:08 +0100 by Ray Breslin

Problem using GPIO- and BSP-module simultaneously

Hello,

last week I was trying to integrate a wake-on-motion-functionality for my hardware using some interrupt-handling. While that problem is solved, I came across some kind of interdependency between initializing the GPIO- and the BSP-module simultaneaously.

Here is the code ... (more)

13
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1
answer
Last activity 2017-03-30 18:01:42 +0100 by Moritz Caspar flag of Germany

DFU bootloader fails second update

I have a created a bootloader using the bootloader_secure example in SDK 12.1. Using my own public-private key pair I've created two zip files, signed with nrfutil, one with the application firmware and one with the bootloader itself ... (more)

127
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3
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Last activity 2017-03-30 17:56:14 +0100 by f.salvatore

PCA10040 UART problem

Hi,

I'm using a PCA10040 board with the UART example provided with the v12 SDK, and the data seems to get corrupted somewhere along the way between my Ubuntu machine and the nrf52.

When I do:

 pr@pr:~/nRF5 ...
(more)

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4
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2
answers
Last activity 2017-03-30 17:15:57 +0100 by ToTo

Urgent!!!!

My app works well when working with Master control pannel, but when I use nRF Connect (Android App of Nordic) I have a disconnection without any reason. Especially when I do enable services!!

My nrf51822 is the peripheral.. Any idea ... (more)

6
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answers
Last activity 2017-03-30 16:12:36 +0100 by Nobody13

Pstorage functional with deactivated softdevice?

Preface: I am developing a software working with different radio protocols (enhanced shockburst, bluetooth,...). Therefore I implemented uart commands for switching radio protocols.

This means I have to switch softdevice very often on and off. If radio chip is configured ... (more)

25
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1
vote
1
answer
Last activity 2017-03-30 16:12:28 +0100 by Hung Bui

sd_ble_gattc_char_value_by_uuid_read - again [closed]

Hi

I'm fighting to read characteristics of my service with sd_ble_gattc_char_value_by_uuid_read. I'm using SD130 V2.0.1 and SDK11.

Here are some snippets from my central device. I register my custom 128bit UUID in the SD130 like so ... (more)

15
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votes
1
answer
Last activity 2017-03-30 16:08:28 +0100 by Matt

mesh stops working after enable scanning

Need help from the mesh experts in this forum!

I'm running the open mesh in the 52832 with the s132_nrf52_3.0.0_softdevice.hex softdevice. The mesh works fine in my tiny 4-node test network. But when I add scanning ... (more)

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1
answer
Last activity 2017-03-30 15:52:49 +0100 by Quark flag of Taiwan, Province of China

hi , can anyone please tell me on how to read the digital input value from pir sensor in nrf52832..??

Is there any sample code in examples, because am a newbie to this great platform, my objective is to glow an led , when the motion is detected , and also when there is no motion ,led remains in off state

16
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votes
1
answer
Last activity 2017-03-30 15:27:03 +0100 by Wojtek flag of Poland

nrf52 removal of 32khz xtal effects

when removing the XL 32Khz xtal what are the ramifications for the product I got the BLE working but what else do I need to look to?

power down issues? fds issues? and any others I can not think of ... (more)

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1
answer
Last activity 2017-03-30 15:18:37 +0100 by Mikhail

send data more than 20 byte via ble_nus_string_send() nRF51 SDK 9

I want to send some data more than 20 bytes. I use ble_nus_string_send(&m_nus, tx_stuffed, 10); 3 times.

In the advertizer.c in the function on_ble_evt I insert code

case BLE_EVT_TX_COMPLETE: 
        b_ble_tx_complette = true;
        break;

But after first use

ble_nus_string_send(&m_nus ...
(more)

20
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votes
1
answer
Last activity 2017-03-30 15:14:06 +0100 by Hung Bui

Nrf51822, arduino IDE Hex, uploading nrfgo

Hi everyone on the community.

I've been struggling trying to upload the hex file created by arduino using redbear nrf arduino fork on a NRF51822 -v2 board that is being sold at ebay.

the hex file size is around ... (more)

24
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1
vote
1
answer
Last activity 2017-03-30 15:00:14 +0100 by Radosław Koppel

GPIO act incorrectly when building with GCC

Hi,

I connected 74CH595 shift registers to nRF52DK board. When I built and upload my code with Keil everything works just fine, but if I compliled it with GCC and upload with nrfjprog, the 74CH595 cannot act properly. I need ... (more)

51
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3
votes
2
answers
Last activity 2017-03-30 14:55:41 +0100 by Radosław Koppel

how to make modbus slave on nrf51

hello there. can anyone tell me how to make nrf51 as modbus slave??

94
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votes
1
answer
Last activity 2017-03-30 14:48:12 +0100 by Torbjørn Øvrebekk

Connection overhead

https://devzone.nordicsemi.com/blogs/...

In this blog this is written:

"Opening and closing a connection event adds a lot of overhead"

how much is the overhead and where can i look this up?

20
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answers
Last activity 2017-03-30 14:45:56 +0100 by waqarahmed

i have run the experimental ble app blinky from sdkand this run successfully ,is there any tutorial available ??? i can't understand the code how its work ??

can any one of you suggest me some tutorial .then kindly give me link

17
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votes
1
answer
Last activity 2017-03-30 14:42:21 +0100 by Hung Bui

What is the correct way to set device pairable / not pairable?

I'm building something based on ble_app_gls. However, I only want it to be pairable when I say so (user presses a button to put it into that mode). Is there a "correct" way to do this? Should I intercept ... (more)

38
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no
votes
1
answer
Last activity 2017-03-30 14:07:24 +0100 by Jørgen Holmefjord flag of Norway

Hi , anyone could help me on how to send the data from uart to ble app in nrf52832..???

What changes , will i have to made in ble_app_uart example code ,am a beginner to the nordic.

22
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2
votes
2
answers
Last activity 2017-03-30 14:05:15 +0100 by Aurabindo

GCC linker error - SSD1306 library

Hi,

I'm trying to make https://github.com/monpetit/nrf52-spi... to compile with GCC (linux). So far I've managed to get it compiled, but linking fails:

mkdir _build
Compiling file: nrf_log_backend_serial.c
..<snip>..
Assembling file: gcc_startup_nrf52.S
Compiling ...
(more)

35
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2
votes
1
answer
Last activity 2017-03-30 14:04:19 +0100 by Kristin flag of Norway

Setting MTU Above 64 bytes Crashes ble_app_uart

Hi all,

I am trying to send a large stream of bytes(60kb) to an NRF52823 using bbowl. BBowl exposes the uart through a TCP socket connection using noble.

I modified the gatt_init code in SDK13 to support the largest ... (more)

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