# 69 questions

Tagged
• x
35
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## is nrf52 dk support 3 wire spi interface

hello i am new to spi, i am doing project on 3 wire spi interface. I am using 3 wire interface as Sclk,ssn,MOSI pins only , I am not using MISO pin .I am tested spi example code but ... (more)

44
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1
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1

## Join SPI and IPv6 over BLE

Hello!

I have the board PCA10040 (nRF52 DK).

I designed two different programs:

• SPI: I'm using the SPI communication to communicate with an external sensor (accelerometer). I used the latest SDK version: v13.0.0.
• MQTT publisher/subscriber: I ...
(more)

43
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## nRF52 DK antenna gain

Hi everyone, I need to know the gain of the BT antenna integrated in the DK for nRF52. Can anyone help?

Thanks, Alessandro.

68
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## nRF52840 DK 2016.49

We have received few nRF52840 preview DK. And one among them has a white sticker label which says 2016.49 and all others have 2017.14.

Should we be using the ones with 2017.14 (assuming this to be latest)?

40
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1
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1

hello,I am testing twi scanner example of nrf52dk.I want to read slave address, the sda & scl pins are 26 & 27 respectively. I am connected PCA9536 module as slave & address of that module is 0x41.I want to read ... (more)

39
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2
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## how to change the Radio transmit power of nRF52-DK?

Hi,

I am a hardware designer. I have little knowledge about firmware or software. Now I want to apply the nRF52832 to an ultra-low power application as a beacon.

I am testing the nRF52-DK using the original code of "nRF5_SDK_13 ... (more)

44
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1
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no

Hi, I'm trying to change ad packets in the blinky example. I want to be able to keep blinking but change the ad packs (don't know if this make sense, but main goal is to change the ad ... (more)

74
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Hey, I have my nrf 52 dk. I have soft device v3 on my nrf 52.

I was doing a blinky test with two boards (one central and one peripheral)

I was just wondering how to change the advertisement packet ... (more)

51
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1
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1

## manufacturing specific data is not changing

We followed the instructions for the beacon example for nrf 52 dk.

Multiple attempts to change and reset the board, there was no change in the ad packet.

Can someone help?

nrfjprog -f nrf52 --memwr 0x10001080 --val 0xabcd0102 I used ... (more)

84
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2
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## why is this code not running in nrfjprog tool

the code is nrfjprog -f nrf52 --snr <Segger-chip-Serial-Number> --memwr 0x10001080 --val 0xabcd0102

I am doing the example https://infocenter.nordicsemi.com/ind...

I am able to get everything up to step 2 of the second part and the command above ... (more)

32
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1
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1

## data sent from nrf52dk to mobile app through bluetooth

hello,i am using nrf52 dk, & am working on bluetooth uart & looking for data is send from mobile to nrf52 dk board. i am having examples of data is sending from board to mobile nrf Tool app. But i want ... (more)

18
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## Using ESB and Serial together on nRF52 [closed]

Hi all,

I am using a nRF52-DK board to receive data from the USB port using Serial, and transmitting it using ESB to a second board. If I use either Serial or ESB individually, it works fine. I have a ... (more)

454
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## Using the DFU SDK 12.1 with a BLE command to jump to 'bootloader' works every other time with nordic connect app

We have been using the DFU that came with the sdk 12.1 with a modification (essentially removing the button from the DFU code). We currently send an application command that will tell the code to 'jump' to the bootloader ... (more)

63
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1
vote
2

## Why pin logic on NRF52-DK is interchanged?

Hi, I develop application on MBED platform with NRF52-DK. I figure out that pin "logic" on this board is interchanged. For example. I have LED connected to some pin. When I set this pin high (set 1) then LED light ... (more)

139
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2
1

## Sharp Memory LCD LS044Q7DH01

Edit: The code posted below works on the 96x96 3V(LS013B4DN04) variant of the display, I still have no idea why it doesn't work on LS044Q7DH01, but I'm guessing it doesnt have much to do with the nordic ... (more)

52
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1
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1

## DK: use internal device with external device connected

Hello,

Can I interact with the internal device of the nRF52 DK (PCA10040) while an other nRF52 connected through the P20 (or P19) connector? The JLink tool has a "device" command but I don't known if it can be ... (more)

35
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## LFCLK timer slows to a crawl [closed]

I have a program which uses two timers to flash an LED, alternating between flashing once every 5s for 15s, then once every 0.25s for 15s.

If I run this on the nRF52-DK with the external LFCLK, it works ... (more)

85
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1
vote
2

## What is the max size of binary file allowed by the free Keil ARM MDK included in SDK 13.0 ?

Some of you may be using the ARM compiler that Nordic provides with SDK 13.0. I was not able to install it on my PC as it does not want to install since it sees another other ARM MDK ... (more)

176
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1
vote
1

## Large MTU + DLE Softdevice Crash

Hello,

I have followed a couple of the posts on the devzone on how to increase the MTU and add the DLE support such as this.

However, whenever I send over 20 bytes of data I get an "app_error_fault".

• I ...

(more)

109
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2
1

## Develop with NRF52-dk and mbed

I started working with NRF52-dk. I develop with GCC compiler and mbed SDK (debugging with OpenOCD and GDB). On download (tools) page I see "nRF5x-OB-mbed-IF" with description: "mbed Interface MCU Firmware for on-board debugger for nRF5x Development Tools"

Why do ... (more)

85
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1
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1

## What is difference between nRF52 DK PCA10040 v1.1.0 and v1.1.1 ?

I am very curious to know about difference between revision v1.1.0 and v1.1.1 of nRF52 DK.

133
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## whitelist does not work [closed]

Following III. Example code and Enabling whitelisting, I try to connect to the "nRF52 DK" board with a whitelist (Android BLE device address), but I've never connected to the board.(using nRF52 DK, S132-SD-v2 & nRF5_SDK_11.0.0_89a8197)

I'd ... (more)

80
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## nRF52-DK mbed update problem [closed]

I've just tried to update the mbed firmware on an nRF52-DK to version 0219, and have hit some problems. Firstly, after dragging the .bin file into the Bootloader drive, my Windows 10 PC bluescreened. I managed to update the ... (more)

2k
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12
3

## External programming Using nRF52-DK

Hello

I have a nRF52-DK and I am trying to programme an external designed by myself but this one contains the nRF51422 chip. I am using nRFGO Studio to upload the .HEX file.

Do you know if it is possible ... (more)

193
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1

## NRF52 DK: High current consumption

Hi,

I am trying to measure the current consumption on my application, and measured some quite high values even after calling sd_app_evt_wait(). After reading through some similar questions here I tried to use the System on/off mode examples as ... (more)

391
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1
vote
1

## nRF52 DK first time

I bought new nRF52-DK. I am am trying to connect it to windows 10 system over usb 2.0 mini port. I have installed nRFgo studio and JLink drivers. The problem is nRF52-DK is not getting detected as mountable drive ... (more)

199
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1
vote
1

## BLE send and receive speed, GATTS [closed]

Hello,

Currently i am doing some testing with the NRF52 DK. I am measuring the time it takes to send and receive a BLE message. I am using the high bandwidth setting the the TX and RX.

conn_bw.conn_bw.conn_bw_rx ...
(more)

186
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1

## Flashed nRF52 DK mbed bootloader, can't access board through nRFgo Studio.

I flashed the nRF52 DK with the mbed bootloader https://developer.mbed.org/platforms/... but I'm having issues with the board. When I drag and drop the file which is a very basic blink program, I get the error ... (more)

2k
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11
3

## Sniffer for nRF52 DK

Hi,

I got one of nRF52 DKs. Is there any chance that we can use this DK similar to nRF51 DK as a sniffer in near future?

I tried to program the board with the HEX file for nRF51. It ... (more)

476
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2
4

## rigado BMD-300 with nRF52 DK

HI, Can anybody give me the connections to a BMD-300 with nRF52DK and the steps to program a BMD-300 from scratch? Which document provides the information, if there is any?

thanks, Vishnu

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