RSS
Sort by » date activity ▼ answers views votes

26,144 questions

9
views
no
votes
no
answers
Last activity 2017-10-20 01:26:33 +0200 by Mahonroy

nRF51822 receiving range problem. Transmit range is good however. Using micro ESB proprietary library.

Hello, We developed a few devices using the nRF51822 and noticed that the receiving range is reduced significantly from our nRF24L01 devices. The transmission range is good however. We are using the micro ESB libraries with no soft devices, and ... (more)

46
views
1
vote
2
answers
Last activity 2017-10-20 00:40:09 +0200 by leonhart88

BLE UART - ble_nus_string_send() connection interval & data transfer

Hey guys,

From what I understand, the minimum connection interval on say, an iPhone, is 20ms. Also, you can send up to 6 packets of 20 bytes within a connection interval. So that's 120 bytes every 20ms.

I've ... (more)

24
views
no
votes
no
answers
Last activity 2017-10-19 23:06:26 +0200 by Meriba

BLE App UART on PCA10056 not working?

I'm using the original BLE App UART from nRF5_SDK_14.0.0 on a PCA10056 Board. The board is advertising, but if I want to open a BLE peer-to-peer connection, than the application stops in the app_error_fault_handler.

If i use ... (more)

80
views
no
votes
1
answer
Last activity 2017-10-19 21:50:41 +0200 by endnode

Connectable range is equal to the range that the smartphone is able to get advertising?

It's kind of relative question with my previous question. "When smartphone range is shorter than a peripheral(nRF5X), is there any way to receive an advertisement from the peripheral?" https://devzone.nordicsemi.com/questi...

  • test device : nRF51822 / iPhone 5 ...

(more)

30
views
no
votes
1
answer
Last activity 2017-10-19 21:42:16 +0200 by endnode

How to change Characteristic UUID?

Hi. I'm using nRF51822 as Peripheral.

To init the service for example "NUS", i have to call NUS_BASE_UUID as below.. #define NUS_BASE_UUID {{0x9E, 0xCA, 0xDC, 0x24, 0x0E, 0xE5, 0xA9, 0xE0, 0x93, 0xF3, 0xA3, 0xB5, 0x00, 0x00, 0x40, 0x6E}} /**< Used ... (more)

26
views
no
votes
1
answer
Last activity 2017-10-19 18:32:59 +0200 by Thomas Stenersen flag of Norway

Mesh SDK Beacon example not working?

I have problems getting the beacon example in the new mesh SDK v0.10.0 working. I invoke cmake with this command:

cmake -DTOOLCHAIN=gccarmemb -DPLATFORM=nrf51422_xxAC -DBOARD=pca10028 -DSOFTDEVICE=s130_2.0.1 ..

And program the device with these commands ... (more)

54
views
no
votes
2
answers
Last activity 2017-10-19 17:23:53 +0200 by Chris L

Having trouble getting any gpio in examples to work?

I have the blinky examples working, but have not been able to get any example code using any gpio input to work. they compile fine but the buttons done seem to work. I'm using GCC compiler in Segger Embedded ... (more)

14
views
no
votes
no
answers
Last activity 2017-10-19 16:54:00 +0200 by SørenHN flag of Denmark

Weird definition of access_opcode_t?

When reading about access_opcode_t struct on its infocenter page it stumbled upon this table i don't understand.

access_opcode_t is defined as:

Data Fields
-------------------
uint16_t opcode
uint16_t company_id

And the table i don't understand looks like this:

+-----------+-----------+-----------+-----------------------------------------------------------------+
| Byte 0 ...
(more)

9
views
no
votes
no
answers
Last activity 2017-10-19 16:52:57 +0200 by alidaf

Errorcode: CouldNotFindJprogDLL (0x2)

I can't open a com port after starting the nRF Connect app. This happens in Windows (native) and also a Linux virtual host with the com port passed through. I'm using a nRF51 DK.

Unable to read connectivity ... (more)

14
views
no
votes
no
answers
Last activity 2017-10-19 16:40:33 +0200 by alidaf

nRF51822 broadcasting off-the-shelf?

Should these beacons be advertising as bought off-the-shelf? I've got six and was expecting to be able to pick up their advertisements but I'm getting nothing.

51
views
no
votes
1
answer
Last activity 2017-10-19 16:00:48 +0200 by Jørgen Holmefjord flag of Norway

nRF_DeviceFamilyPack:8.15.0 Pack not found

Hello! I try build example from new SDK 14.1.0 in Keil5.

But I get a error Cannot execute external request (Install Pack, NordicSemiconductor:nRF_DeviceFamilyPack:8.15.0"): Pack not found Please help me!

29
views
1
vote
1
answer
Last activity 2017-10-19 15:38:34 +0200 by Sigurd flag of Norway

PWM individual decoder not working

Hi all,

I have two pwm pins I would like to have them run at two different duty cycles. My understanding is that we can do this by setting the decoder to individual. When I set this register to individual ... (more)

72
views
no
votes
2
answers
Last activity 2017-10-19 15:20:13 +0200 by Hung Bui

Unit testing with Unity and SoftDevice

Hi,

I'm currently in the process of integrating unit testing into our firmware development process. I'm trying to execute on-target tests with the Unity test framework, using the Nordic-modified version provided in this post.

This has been working ... (more)

35
views
no
votes
2
answers
Last activity 2017-10-19 15:16:53 +0200 by emdi

Storing many small blocks of data in FDS?

Hi All, We have a data logging application, where our typical data packet is small -- roughly 20 bytes. I've been experimenting with FDS for storage, with one record for each packet, and I'm getting my fds write calls ... (more)

22
views
no
votes
1
answer
Last activity 2017-10-19 15:11:33 +0200 by emdi

Bootloader Update fails (INSUFFICIENT_RESOURCES)

Hi Nordic forum.

We wanted to update the bootloader over the air. Initially, we had a very plain bootloader (the one provided in the example) but later we added a timer to reset to the application when no packets are ... (more)

11
views
no
votes
no
answers
Last activity 2017-10-19 15:09:26 +0200 by ndarkness

How can I enable advertisement with a private addresses whitelist?

Hello,

I would like to make use of white list advertisment for my heart rate application on my nrf52832 s132 pca10040, currently I am using SDK12.2, is there some example provided on the SDK that handles/uses this functionality ... (more)

68
views
no
votes
no
answers
Last activity 2017-10-19 15:08:20 +0200 by jev

SDK_config.h inconsistencies

I just replaced SDK 14.0 with the shiny new SDK 14.1 in my project. My project uses components from the SDK, but I don't use the exact same structure. Once again, it won't compile out of ... (more)

14
views
no
votes
no
answers
Last activity 2017-10-19 14:33:16 +0200 by chocol8

Function execution when BLE_GAP_EVT_CONNECTED

Hello,

I am using ble_app_uart code. My first goal is to execute a function when board connects with an android device. Another goal is to disconnect board from an android device after information was sent. Moreover, to uninitialize radio, advertising ... (more)

26
views
no
votes
1
answer
Last activity 2017-10-19 14:32:34 +0200 by Sigurd flag of Norway

S140 BLE config

I need some parameters of the BLE s140 stack for my project. Including duration of an advertisement event (beacon) and the maximum random slack for an advertisement.

I am not sure where can I find those things.

I am using ... (more)

44
views
no
votes
no
answers
Last activity 2017-10-19 14:11:30 +0200 by Davide flag of Italy

Power Profiler Kit tremendous delay, what's going on?

Hello, I'm trying to measure the current profile with the PPK (HW Rev:1.1.0, SW: 1.1.0) but I see a lot of strange behaviors.

My firmware initializes everything and the waits a button event. When ... (more)

46
views
no
votes
1
answer
Last activity 2017-10-19 14:06:22 +0200 by mantap

how to get data ADXL345 using nRF51822 via arduino IDE and mbed compiler

I've already tried before using ADXL345 using nRF51822 using mbed compiler this is the link.. https://os.mbed.com/users/asyrofi/cod...

but that program can't get ADXL345 data, just UART nRF51. I've tried using nrf51822 too ... (more)

225
views
1
vote
2
answers
Last activity 2017-10-19 13:45:54 +0200 by Austin

SVCALL warning messages

I've recently upgraded my IDE to use Crossworks v3.6.2 which uses a GCC ARM Embedded 4.9-2015-q3-update compiler. it has by default many of the code clean up featues turned on. it has found a great many ... (more)

47
views
no
votes
1
answer
Last activity 2017-10-19 13:22:49 +0200 by Sigurd flag of Norway

nrf_log fixes in SDK14.1.0

I've noticed following line in SDK14.1 release notes:

- Fixed a bug where nrf_log could crash when heavily loaded.

I'm using SDK13.1 in my current project and I'm experiencing nrf_log related crashes under load as described ... (more)

32
views
1
vote
1
answer
Last activity 2017-10-19 13:19:45 +0200 by Martin Børs-Lind flag of Norway

FDS lifetime

Hi, I use SDK13.1 FDS example and have some questions about that. Is there any influence about the lifetime of Flash when i use FDS function to write and delete the records.If it has,how to calculate the ... (more)

8
views
no
votes
no
answers
Last activity 2017-10-19 12:45:15 +0200 by tommik

NFC_T4T_EVENT_NDEF_READ event not working every time

Hello,

i am working on an app using Android to read and write an NDEF record using SDK 14 type 4 tag.

I start the process by reading the record with the following Android sequence:

Ndef ndef = Ndef.get(mTag ...
(more)

18
views
no
votes
no
answers
Last activity 2017-10-19 12:42:13 +0200 by Hiro

Mystery that makes pairing impossible using DK 52(10040)

Hello everybody. Please answer my question.

I repeated the Bluetooth pairing ON → OFF of my smartphone and DK 52 (PCA 10040 + HRM) and checked the connection, I encountered a mysterious phenomenon. HRM : heart_rate_demo.hex

1) It is a phenomenon that ... (more)

18
views
no
votes
no
answers
Last activity 2017-10-19 12:39:26 +0200 by creator

Questions about the Nor51822 BLE and PWM?

How do you do

Now use the Nordic \ nRF5_SDK_12 2.0 _f012efa \ examples \ ble_peripheral \ ble_app_uart this plus Nordic \ nRF5_SDK_12 2.0 _f012efa \ examples \ peripheral \ pwm_library this routine. 1. Only PWM operation, use the bluetooth connection will be disconnected after sending ... (more)

18
views
no
votes
no
answers
Last activity 2017-10-19 12:27:02 +0200 by dichaelen

Thread border router testing

Moving on with "https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.threadsdk.v0.9.0%2Fthread_border_router.html" I have reached: "Starting the Border Router" and then "Thread Settings"

But I simply cannot establish a SSH connection. Putty promts ... (more)

35
views
no
votes
no
answers
Last activity 2017-10-19 12:11:00 +0200 by vincent.golle

nRF5 SDK V14.1 IOT capabilities

Hi all,

I am currently building an app that does HTTP requests to Strava (https://strava.github.io/api/).

Before going deeper into the SDK, I would like to know if it will be able to handle the advanced authentication ... (more)

10
views
no
votes
no
answers
Last activity 2017-10-19 12:06:36 +0200 by Andrzej Kaczmarek

Minimum preamble length to receive packet on Coded PHY

Hi,

What is the minimum number of symbols in preamble nRF52840 has to receive in order to receive full packet on Coded PHY? I can see that it can easily receive packet with less than 80 symbols received, but don ... (more)

Statistics

  • Total users: 24931
  • Latest user: Mavis Ebert
  • Resolved questions: 10681
  • Unanswered questions: 3448
  • Total questions: 26145

User menu

    or sign up