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33
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Last activity 2017-12-07 12:30:14 +0200 by endnode

What HW do I need to buy to start playing with nRF52 DK?

I'am realy new to nRF52 development. I want to start with a simple demo as shown on https://www.nordicsemi.com/eng/Produc....

What HW do I exactly need to buy to start playing? I have no experience with ... (more)

34
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no
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no
answers
Last activity 2017-12-04 12:24:55 +0200 by schef flag of Croatia

Segger Embeded Studio on Linux

Hi guys, has anyone had problems with: Cannot connect to J-Link via USB. message?

The device is alive and i can flash and connect to it from CLI.

Thanks

95
views
1
vote
1
answer
Last activity 2017-11-27 03:18:29 +0200 by Thomas

NRF52 doesn't start without debugger (Jlink) on GCC toolchain

Okay this got us going around in circles and it looks stupidly simple. It seems there is a knowledge gap since we saw many posts similar to ours but without clarity as of what to do in practice.

-- Problem statement ... (more)

69
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2
votes
2
answers
Last activity 2017-11-22 04:58:15 +0100 by rct42 flag of New Zealand

Read and write specific flash pages from a computer

I want to read and write certain pages from the NRF52 flash via nrfjprog. The goal is to debug an issue with the peer manager by saving the FDS flash contents to disk. I would also want to restore the ... (more)

98
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1
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no
answers
Last activity 2017-11-07 04:31:14 +0100 by Jason

nrf52832 can not be recovered [closed]

hi,

I tried to recover custom nrf52 board by nrfGo stuidio,and it failed,the logs as below:

--------------------------------------------------------------------------------
nrfjprog.exe --family --NRF52 -rbp --log
nrfjprog verion 9.7.1
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
nrfjprog.exe --family NRF52 -rbp --log
nrfjprog verion 9.7.1 ...
(more)

22
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2
votes
1
answer
Last activity 2017-11-02 01:29:54 +0100 by jublin

Thingy GCC App goes straight to DFU

I've compiled a new app with a new BLE service and module to go along with it (for different work than my other question, I can test this service in a generic LE explorer).

I've used the GCC ... (more)

285
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no
votes
3
answers
Last activity 2017-10-24 13:25:07 +0100 by naga durga prasad

The firmware does not support the memory access

image description

I got this info when I use keil to download progream though jlink.my board is NRF52832,the version of my keil is V5.24 and the version of my SDK is 14.0. why it's happened and what ... (more)

94
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1
vote
1
answer
Last activity 2017-10-17 09:15:18 +0200 by jj

Error Symbol could not be resolved using GCC Eclipse [closed]

I followed the tutorial on https://devzone.nordicsemi.com/tutori... to use Eclipse, GCC and GNU Debugger.

I encountered an error after the successful build (with key symbol) with CDT Build Output Parser, where the files are included by it ... (more)

75
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no
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no
answers
Last activity 2017-10-06 01:39:48 +0200 by Marco

Checking nRF52832 SoC for hardware faults (cannot be flashed) [closed]

Dear support,

I am working on some custom boards embedding the nRF52832-CIAA chip using SDK-v11.0 and s132-v2.0.1.

I have got 9 custom units and out of them only 1 cannot be flashed.

Even trying to restart it ... (more)

175
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1
vote
1
answer
Last activity 2017-10-04 19:55:51 +0200 by Krzysztof Zaraska

JLink RTT Viewer Wont Log

Hello!

I am using the nRF52832 with nRF5_SDK 14.0.0. with a JLink connection. My OS is Ubuntu 16.04.

After placing NRF_LOG_INFO() statements around my code, connecting to the nRF52832_XXAA device with 'JLinkExe', and running 'JLinkRTTClient', only the ... (more)

44
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1
vote
1
answer
Last activity 2017-09-29 09:16:02 +0200 by endnode

How to configure NRF51-DK to flash firmware to a different nrf51 module

Hi all, I have here NRF51-DK, I am a bit familiar with the kit for a while. Now I want to make a system using NRF518422 chip. I manage to find a module - "Taiyo Yuden EYAGJNZXX".

My question is, Is ... (more)

112
views
1
vote
1
answer
Last activity 2017-09-28 22:32:08 +0100 by endnode

How to secure the nRF52's flash from read back with JLink Commander

Hello!

I would like to program the nRF52 using the JLink Commander and protect it afterwards. Which register do I need to manipulate?

Thanks and kind regards,

Michael

259
views
1
vote
1
answer
Last activity 2017-09-21 20:50:27 +0200 by zoltan

NRF52 nrfjprog: ERROR: There is no debugger connected to the PC

------------ EDIT Sep-21-2017 ----------------

I was able to work around the issue by trying on a Linux distribution. Here is a written guide to the package install and board connect process on Ubuntu 16.04: Warning! the guide is written for a ... (more)

88
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1
vote
1
answer
Last activity 2017-09-11 22:17:53 +0200 by RK flag of Singapore

rtt when link disconnected

I have an example combining BLE, UART and SPI in which I use RTT to watch the startup process. The SoC is nRF52 (BLE Nano2); building with armgcc. This works ok when JLink is connected. However, if I unplug the ... (more)

107
views
no
votes
3
answers
Last activity 2017-09-11 09:27:42 +0200 by Martin Børs-Lind flag of Norway

ERROR when programming my custom pcb with NRF51288 DK PCA10028

Hello everyone, I've been trying to solve this problem for several days.

Hello everyone, I've been trying to solve this problem for several days. I have developed a custom-built PCB based on the NRF51288 chip but I can ... (more)

91
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no
votes
no
answers
Last activity 2017-09-08 09:38:36 +0200 by Martin Børs-Lind flag of Norway

Programming ISP1507 from nRF52 DK

Hi,

I am trying to program a custom board with ISP1507 chip from dynastream based on nRF52832 using the nRF52 DK. I have connected P20 on the DK to the chip as follows,

Board_VDD       ->    DK VDD and VTG (pin 2 ...
(more)

35
views
no
votes
no
answers
Last activity 2017-08-22 18:21:25 +0200 by Ignacio Lopez-Negrete flag of Spain

RTT infinite loop over initial commands

Hi,

I have just updated the SEGGER Jlink tools to the latest version v6.18b.

Under Keil debbuging the J-Link RTT Viewer (or client) shows the initialization commands in an infinite loop (one after the other starting from the first ... (more)

131
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1
vote
1
answer
Last activity 2017-08-18 10:54:13 +0200 by RohanKadam

Programming nrf51-DK with another nrf51-DK

I have two nrf51-DK's (say A and B).

A , nrfStudio doesn't detects it.
(Windows doesn't even shows USB port connection in device manager, so cannot try nrfjprog --recover)

B is working fine.

I was trying to reach ... (more)

59
views
no
votes
no
answers
Last activity 2017-08-18 06:21:05 +0100 by ishgum

nRF52 DK LD5 Not flashing

I just opened my nRF52 DK and tried to flash the board. I got the error

ERROR: There is no debugger connected to the PC

Most concerning is that the LD5 light does not light up. I tried powering it ... (more)

84
views
no
votes
2
answers
Last activity 2017-08-10 00:03:13 +0200 by Nguyen Hoan Hoang flag of Canada

custom nRF52 J-Link for UART

I am working on a nRF52328 present in the Taiyo Yuden EYSHJNZXZ module. I am using a J-link EDU debugger to program it. Can I use the J-Link for UART communication with the PC?

Thanks.

2k
views
6
votes
2
answers
Last activity 2017-08-08 18:11:38 +0200 by tralamazza

nrfjprog wants JLinkARM.dll on linux

First, obviously error message is not correct, dll's are not used on linux. Message should give correct file name instead of prewritten one.

I have installed latest JLink 5.02g. And tried both 32 and 64 bit versions. I ... (more)

250
views
no
votes
3
answers
Last activity 2017-08-08 10:50:29 +0100 by Terje Schjelderup flag of Norway

nrf52328 jlink error

I am trying to program a nRF52328 present in the Taiyo Yuden EYSHJNZXZ module. I am using Keil v5, nRF sdk v 12.3, soft device 132.

I get the following error when I try to download a compiled example ... (more)

99
views
no
votes
1
answer
Last activity 2017-08-03 01:13:06 +0100 by Kathryn

PCA10028 firmware update problems [closed]

Hi, I am trying to use the nRF51DK (PCA10028 v.1.2.2).

I cannot get Windows 7 to recognize it via USB reliably. I have JLink v6.16a installed and when I plug in the board, if it recognized ... (more)

121
views
no
votes
no
answers
Last activity 2017-07-26 15:11:16 +0200 by ankitjain96

DAP error while reading AHB-AP Rom Reg. Unable to connect to target.

I am using jlink to program the custom board. I was able to program the board earlier, but now this error is comming. I have rechecked the connection and it is fine. The custom board is powered by the 12V ... (more)

68
views
1
vote
1
answer
Last activity 2017-07-25 13:53:26 +0200 by Bjørn Spockeli flag of Norway

Programming external 51822 chip with 51DK and MBED - how?

Hello,

Can you please provide any link or give me any advice how to connect NRF51822 chip with NRF51DK? Here is my connection that doesnt work:

DK GND DETECT and GND together --- NRF 51822 CHIP GND

DK SWD CLK --- NRF ... (more)

100
views
1
vote
1
answer
Last activity 2017-07-07 01:33:46 +0100 by Ladasky

JLink works on Win10, but not on Ubuntu Gnome 17.04

Hello there,

While investigating some issues with getting nRF Connect working on Ubuntu Gnome 17.04, I came across a more fundamental problem.

I now have J-Link V6.16b installed on both Windows 10 and Ubuntu Gnome 17.04, the ... (more)

631
views
3
votes
2
answers
Last activity 2017-06-29 09:40:05 +0200 by Artem Efremov

Error when programming a custom board using nRF52-DK [closed]

Dear colleagues,

I am trying to erase / program the custom board ( with nRF52832 SoC installed) using nRF52-DK. The setup looks like that:

nRF52-DK Custom / External Board

VDD ------+-------------> VDD

VTG ----+/

GND ------------------------> GND

GND DETECT -----/

SWD IO -----------------> SWD IO

SWD CLK ----------------> SWD ...

(more)

301
views
no
votes
1
answer
Last activity 2017-06-20 16:13:48 +0200 by Sigurd flag of Norway

firmware jlink v8 nrf52

hi guys. i'm have a project with nrf52832. i use jlink v8 debuger clone form china, just 12$ and have this troulbe in this figure Untitled.png

could you help me?. jlink debugger authentic cost 200-300$, it's to ... (more)

49
views
1
vote
1
answer
Last activity 2017-06-16 09:12:20 +0200 by Kristin flag of Norway

Can I use Jlink OB in nRF51DK to program nRF52 based module?

Is it possible to use nRF51DK's JlinkOB to program nRF52 based module? if not is it possible by changing the firmware of JlinkOB?

52
views
no
votes
1
answer
Last activity 2017-05-12 10:28:37 +0100 by DerPMO

nRF51 DK reboots when trying to connect to custom board with needle adapter

I'm having major troubles with my debugging setup using a nRF51 DK (PCA10028 V1.2.0).

When I try to connect to the board I want to debug/program (which has an BlueMod +S = nRF51822), the nRF 51 DK ... (more)

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