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28,672 questions

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Last activity 2018-01-20 19:31:28 +0200 by Amigo flag of Russian Federation

Nrf ESB using nrf_esb_suspend, nrf_esb_disable functions

Which case i have to use nrf_esb_suspend function instead of nrf_esb_disable/enable?

What function i have to use when i change radio RX to TX mode, changing radio channel?

Also, tell me about difference between getting payload as while(nrf_esb_read_rx_payload ... (more)

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Last activity 2018-01-20 18:30:08 +0200 by paul

BLE multi communication

Hi, Is it possible to have multiple BLE units that can talk to each and any of the others. ie if two come in close proximity they can connect and communicate a small amount of data ie Rssi?

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Last activity 2018-01-20 18:27:31 +0100 by Phil Beeson

COAP server only responding on link local address

I'm trying to use a the COAP server example from SDK 14.2 running on nRF52DK. I've got a RPI3 acting as a router between my Ethernet network and the 6lowpan/BLE link.

I'm running a python ... (more)

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Last activity 2018-01-20 18:27:27 +0200 by dlip

ANT tx slots missed during channel scanning

I have an NRF52832 configured with 3 ANT+ channels (and BLE). 2 are master and 1 is slave. Anytime the slave channel is opened and scanning for a master the 2 master channels miss a large number of transmission time ... (more)

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Last activity 2018-01-20 18:01:16 +0200 by Fermin Murtagh flag of Germany

Everything You Need to Know About Printed Lanyards

Printing techniques vary from a hot stamp (basic quality) and silk screen (medium quality) to a more costly dye sublimation process that results in a premium quality print. Printed lanyards are also available in a wide variety of patterns including ... (more)

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1
answer
Last activity 2018-01-20 17:00:28 +0200 by nemik

NRF51 current abrupt change

hello, I uses NRF51822 to make a beacon with RTC. When it works initially, the churrent is small about 330uA,but after a few minutes it becomes 1.1mA and stable. I donn't konow why.

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Last activity 2018-01-20 16:31:10 +0200 by Aron

can't discover nRF52832

Hello. Engineers. I'm a beginner in nRF52832, I'm looking for someone who can help me. I have nRF52832 development kit. I tried examples blankly with SDK14.0. It working well. examples are correct. After power on board and ... (more)

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Last activity 2018-01-20 16:19:16 +0200 by MANGO

Plans for uploading reference design for Capactive Touch applications?

Hello, deavteam. This is MANGO.

The Capacitive Touch on the nRF52 series blog post is really impressive.

I'm planning to start a haptic driver project using TI's DRV2605 driver, an LRA (Linear Resonant Actuators), and Nordic's nRF52 ... (more)

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Last activity 2018-01-20 15:32:47 +0200 by Anthony

LPCOMP Interrupt Resets MCU (nRF51-DK)

Hi All,

I am new to nRF development and purchased the nRF51-DK (PCA10028). I have successfully experimented with the examples for ble_app_uart and lpcomp. My Application will require a a combination of these two examples. As such I have added ... (more)

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answer
Last activity 2018-01-20 15:31:18 +0200 by Mahesh Venkitachalam flag of India

Programming Raytac module through nordic nrf52832 development board.

I have got a Raytac module MDBT40(nRF51822) and development board nRF52832. Now I want to program the module using the development board. I have followed this video ( Programming and debugging custom nRF5 devices) and few blogs to make the ... (more)

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Last activity 2018-01-20 13:42:08 +0200 by Deljohn

low_power_pwm duty_cycle seems buggy.

I've been trying to figure out the duty cycle on the low_power_pwm and it looks pretty buggy to me (SDK v13.0.0). Some of the low_power_pwm code considers duty cycle to be a scale, and some of it ... (more)

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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?

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Last activity 2018-01-20 10:44:18 +0200 by kont40

reading multiplexed SAADC input pin

Hello, I need to read SAADC input pin of nRF52832 that is multiplexed and wonder what the optimal strategy is to implement that.

Especially: setting a ppi channel so that a timer compare event is triggering sample task in SAADC ... (more)

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1
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Last activity 2018-01-20 09:36:59 +0200 by kont40

About some abbreviations

DSP is Digital signal processing,But I first came into contact with the word,I don't know what is DSP? Do you have any relevant documents to explain the words? The second question, I want to know the difference ... (more)

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answer
Last activity 2018-01-20 08:18:23 +0200 by jakub

AES-CBC with Padding

I am trying to configure the CryptoCell on an NRF52840 to use AES-CBC encryption with PKCS7 padding. When I call the following function, it returns SASI_AES_ILLEGAL_PADDING_TYPE_ERROR:

SaSiAesUserContext_t ctx;

SaSiError_t err = SaSi_AesInit(&ctx,
    SASI_AES_ENCRYPT,
    SASI_AES_MODE_CBC,
    SASI_AES_PADDING_PKCS7);

Is Padding supported for AES-CBC ... (more)

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Last activity 2018-01-20 07:51:31 +0200 by jane xue

problem about DFU

Hello I am using nrf51822 .The function of DFU has worked well,but some weird problems puzzle me. 1、After DFU is successful,what is nrf51822's working state? Does it reset?From bootloader?Or directly enter into the BANK1 ... (more)

17
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1
answer
Last activity 2018-01-20 06:54:39 +0200 by vikrant8051

Mesh_Broadcast_Server

Hello Nordic devzone,

I'm using Mesh SDK and nrf52PDK, and i'm using light_switch example. could you please let me know that if it is possible to broadcast a message from one of the server nodes and receive the ... (more)

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Last activity 2018-01-20 05:05:47 +0200 by huaminhtuan

6KRO protocol

Hi everyone,

Currently, my team is developing a BLE keyboard which uses 6KRO protocol. Are there any examples for the 6KRO protocol using nRF52 chips?

Thanks!

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1
answer
Last activity 2018-01-20 02:03:43 +0200 by RK flag of Singapore

sd_power_dcdc_mode_set always return SUCCESS? [closed]

Hi,

Currently I am trying to test DCDC mode on my custom board nrf52832. After soldering 15nH and 10uH on DCC(pin 47), I issued the following command after softdevice enabled:

sd_power_dcdc_mode_set(NRF_POWER_DCDC_ENABLE);

It returned SUCCESS.

However, since I do ... (more)

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Last activity 2018-01-20 01:13:10 +0200 by Sensorion

SDK14.2 DFU power cycle issue

Situation: Trying to upgrade previous versions of the SD and BL (V3.0.0) to (V5.0.0) Problem: device power cycles after a new application is flashed to the device into the V5.0.0 SD and BL.

Steps ... (more)

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1
answer
Last activity 2018-01-20 00:59:05 +0200 by RK flag of Singapore

NRF52832 in Hard Fault State.

Hi,

We have made a custom PCB using the NRF52832 chip. While it was working fine for a couple of days, it suddenly stopped working and went to a hard fault. We are not able to figure out the reason ... (more)

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1
answer
Last activity 2018-01-20 00:56:24 +0200 by RK flag of Singapore

Reading the Factory Information Resistors when device is in hard fault

Hi,

We have made a custom board using the NRF52832 chip. The device is in hard fault mode and we believe it may be because of the corruption in internal memory. We wanted to check whether the Factory information resistors ... (more)

9
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Last activity 2018-01-20 00:01:08 +0200 by YooLoo

nrf52840 MPU9250 Magnetometer Reading

Hello, I am using nrf52840 PDK, sdk 13.0.0. I managed to read accel, gyro data from the MPU9250 using MPU library based on this example. However, I got magnetometer reading 0. I've checked this question and this ... (more)

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1
answer
Last activity 2018-01-19 22:59:42 +0200 by AmbystomaLabs flag of United States

Using nRF52832 P0.9 problems as output

Hello,

I am trying to configure P0.9 as output and toggle this pin. It is no possible but if I change the number of the pin then I can see the modification of the output value.

I can not understand why.

6
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answers
Last activity 2018-01-19 22:39:52 +0200 by Dave_couling

Support for ANT Blaze

I want to implement a multi-protocol firmware stream on nRF52 chips. Does the S332 softdevice ANT Blaze for MESH applications?

9
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votes
1
answer
Last activity 2018-01-19 21:22:10 +0200 by MichaelNordicUser

No sdk_config.h file for Application Timer Tutorial

The app_time_tutorial.zip file I downloaded for the Application Timer Tutorial does not contain a sdk_config file despite the #include "sdk_config.h statement included in multiple files. Therefore, the project does not compile, and throws multiple instances of this error ... (more)

13
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Last activity 2018-01-19 20:55:51 +0200 by João Oliveira

Mesh Health Model

The mesh health model state is not restored following a reboot in the current version of the Mesh SDK using the light switch example.

According to the documentation, the configuration should be restored automatically so I think this is a ... (more)

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Last activity 2018-01-19 20:33:39 +0200 by chaonis

Power Profiler Kit PPK with DK RTT debug out not working.

Current latest JLink firmware won't allow PPK working with DK RTT debugging.

The cause is the JLink chip on the DUT board won't put the SH_SWO/SH_SWCLK/SH_SWDIO in hi-Z mode when SH_VTG is grounded, which prevents the ... (more)

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1
answer
Last activity 2018-01-19 20:14:20 +0100 by shibshab

nRF51822 find a specific mac address

Hi, I want nRF51822 BLE to search for a specific mac address device and if find it, turn on a LED. I'm new, so please explain in detail. tnx

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Last activity 2018-01-19 18:26:48 +0200 by kbb64

custom UUID Service not found

I am having problems getting my client to connect to a peripheral I have gone thru the central tutorial and tried many things here on the devzone to no avail.

state: s140, multirole_lesc sdk 14.2

On the peripheral side ... (more)

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  • Total questions: 28672