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27,773 questions

334
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2
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1
answer
Last activity 2014-11-26 14:30:05 +0100 by Stian flag of Norway

S130 flash layout

The S130 SDS 0.5 documents a CODE_R1_BASE of 0x00020000, but I can't get it to work with code at this location. Any SoftDevice API call ends up in the application's SVC_Handler rather than the SoftDevice's.

By ... (more)

579
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no
votes
1
answer
Last activity 2014-11-26 14:04:34 +0100 by Stefan Birnir Sverrisson flag of Iceland

why my 51822 break down when i use the sd_ble_gatts_hvx() during the interruption caused by the external pin toggling

Hi, i use the library app_gpiote to setup interrupts on a toggling external pin(this pin generates a signal which changes from high to low).The external interrupt signal is generated every 4ms. during each interrupt i will get a ... (more)

160
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no
votes
1
answer
Last activity 2014-11-26 12:37:54 +0100 by Stefan Birnir Sverrisson flag of Iceland

DFU GAP Disconnection:How GAP works?Can you tell me the process of GAP Disconnection?

Links: ota_profile_pkt_rcpt_notif

As you see,GAP Disconnection,I don't Know how it works.The ble device call disconnection,but ble android phone respones it more then 5s, I want to android phone respones it in 2s, what's the code?

417
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no
votes
3
answers
Last activity 2014-11-26 12:18:31 +0200 by Petter Myhre flag of Norway

Can't find Bluetooth operations in example code

Hi, I'm a student at Oregon State University using the nRF51 Development Kit for a project. I can't seem to find any functions for sending and recieving Bluetooth signals in the SDK example code. The closest I found ... (more)

143
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1
vote
2
answers
Last activity 2014-11-26 11:34:38 +0100 by Petter Myhre flag of Norway

nrf51822 is locked by program [closed]

Hi Nordic

My program can build pass, but it can lock nrf51822 . Do you know what error can cause it ?

I am looking forward to receiving you reply !

594
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4
votes
2
answers
Last activity 2014-11-26 02:41:20 +0200 by RK flag of Singapore

MAC OS X error connecting PCA10028 and PCA10031 JLINK DISK. [closed]

Hello Nordic guys, help requested !!!

Error while connecting to USB port the new development boards, DK and DONGLE.

Error is "OS X unable to repair JLINK disk". Action required : reformat disk.

Unable to write on this disk or copy a ... (more)

1k
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no
votes
3
answers
Last activity 2014-11-25 20:59:54 +0100 by Josh Blackann

nRFgoStudio : LIBEAY32.dll

Hi,

I have just installed the lastest nRFgoStudio 1.16.0.3031 (Win32 version under Win7) and when I start the studio the following error commes up :

nRFgoStudio.exe - Ordinal Not Found The ordinal 4540 could not be located in ... (more)

838
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-1
votes
2
answers
Last activity 2014-11-25 16:00:42 +0100 by nospam2000

nRF51822 Bit-Width and BITMODE

Hello,

Firstly, the nRF5122 Product Specification v1.3 Section 4.2 says that TIMER0 is 32 bits wide. However, other product specs seem to mention 16/24 bit timers, and it seems to be 24 bits.

Secondly, changing the BITMODE ... (more)

766
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no
votes
1
answer
Last activity 2014-11-25 15:15:53 +0200 by Adib

nrf51422 Dk can not access via jlink

I have nrf51422 dk. The boards I connect to 3.3V power and via jlink to my pc. I use the JLink command line tool. I can not access the chips. Erasing is not possible and reading register gives nonsense ... (more)

26
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no
votes
1
answer
Last activity 2014-11-25 14:43:06 +0100 by Stanley

nRF Utility apps cannot be connected [closed]

Hi, I just downloaded the Utility app for the ble apps(nRF518 SDK) checking on my i5 at iOS 7.1.2. I have tried to connect the apps(hr, proximity) of Utility, but there is no answer or response ... (more)

818
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3
votes
2
answers
Last activity 2014-11-25 14:13:20 +0100 by Carl

nRF51822. Using QFAA (256kB) Code for QFAB (128kB)

Hi there,

I am using Eclipse and GCC (codesourcery) as development tools.

In the gcc makefile, once provided by Nordic with the "button_radio_example" are two lines, specifying the target chip:

TARGET_CHIP := NRF51822_QFAA_CA and DEVICE_VARIANT := xxaa

I recently changed my target ... (more)

239
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1
vote
1
answer
Last activity 2014-11-25 14:02:38 +0100 by Petter Myhre flag of Norway

nrf51-ble-app-lbs with encryption

Would the example https://github.com/NordicSemiconducto... compile without any extra configuration ? I am trying to build it in a Keil uVision v.5.12.0.0, but I have some problems, such as:

.\_build\ble_app_lbs.axf: Error: L6218E: Undefined ...
(more)

657
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no
votes
2
answers
Last activity 2014-11-25 13:50:57 +0200 by Omnia

Connection for NRF51822 J-Link base

Hello,

I just bought an nrf51822 evaluation kit and a segger J-link BASE Jtag. I understand that I have to play with the SW4 swith and the U4.

I identified the switch SW4 but not the U4. In other word ... (more)

848
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no
votes
2
answers
Last activity 2014-11-25 13:49:58 +0200 by Julian

SPI Master

I have been trying to implement a SPI Master on the nRF51822 Eval board in order to read data from an Analog Devices ADXL345 3-axis Accelerometer. I chose to start with the project spi_master_example, which is targeted at the nRF6310 ... (more)

474
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no
votes
1
answer
Last activity 2014-11-25 13:39:10 +0200 by Stefan Birnir Sverrisson flag of Iceland

Useage of HFCLK at SD110 startup

Hello,

We are developing an application in which we have an NRF51822-CFAC with sd110 v7.0.0 together with very small energy allowances. Our problem is that we cannot get the NRF51822 to boot up and enable the softdevice without ... (more)

76
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no
votes
1
answer
Last activity 2014-11-25 12:58:25 +0100 by Stefan Birnir Sverrisson flag of Iceland

Ibecon for Access control application

Hi,

I have an idea to implement BLE based access control application. I considered nRF51822 based Peripheral device & iOS application for central device

Both the Central peripheral shall be paired when they come to very near to provide access control ... (more)

1k
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no
votes
1
answer
Last activity 2014-11-25 12:26:42 +0100 by Asbjørn flag of Norway

nRF51822QFAA RF range achievable with discrete BALUN and SMD Chip Antenna 2450AT18B100

We are in the process of creating our 2nd pass boards with following components to achieve good RF range>20 meters. We are considering discrete BALUN components and SMD Chip Antenna 2450AT18B100. Has anyone used the above components and achieved ... (more)

173
views
1
vote
1
answer
Last activity 2014-11-25 09:51:29 +0100 by Asbjørn flag of Norway

which ways should i use to enter low power consumption mode on stacks?

hi, i'm gonna make 51822 enter low power consumption mode.Meanwhile it could be wake up by "GPIOTE_IRQHandler()"

1:Now,i know that "sd_power_system_off()" can make 51822 enter low power consumption mode.however,there is a question that "reset ... (more)

133
views
2
votes
1
answer
Last activity 2014-11-25 09:39:31 +0100 by Asbjørn flag of Norway

Can I get 5V from the nRF51 DK

I see 5V pins on the schematic for the new nRF51 development kit. If I power the board via USB, I understand that 5V is regulated down to 3.3V for the chip. Is the source 5V available on P1 ... (more)

325
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1
vote
1
answer
Last activity 2014-11-25 09:26:14 +0100 by Petter Myhre flag of Norway

nRF51 Builds, loads, does not debug [closed]

I will be happy if someone points out this is a newbie problem and not something weirder...

Running on Win7, 64 bit BTW...

I recently received the nRF51 eval kit. I have owned and used Keil for a long time ... (more)

403
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no
votes
no
answers
Last activity 2014-11-25 01:39:05 +0200 by morgen

About connection and Bonding(Updated, Sniffer trace posted)

Hi, I am now developing the BLE with our company's own sensor, so we are not using the motherboard. There always a problem when we use it. I am using the PCA10004 board and the USB Dongle as the ... (more)

181
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no
votes
2
answers
Last activity 2014-11-24 21:40:51 +0100 by clacla

nrf8001 and msp430

Hi,

I am trying to connect my msp430f1611 microcontroller with the nrf8001 bluetooth chip. I read this thread (https://devzone.nordicsemi.com/questi...) and it seems very helpful. Especially the code that has been developed. Now, I am using a ... (more)

213
views
5
votes
2
answers
Last activity 2014-11-24 20:39:34 +0100 by David Robins

What does PSTORAGE_LOAD_OP_CODE mean? [closed]

What exactly does the PSTORAGE_LOAD_OP_CODE (0x03) mean? The documentation says (online) that it is an "Error when Load Operation was requested".

The code is pretty straightforward: storage.cpp

Is there something specific to the S130 device that it doesn't ... (more)

510
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no
votes
2
answers
Last activity 2014-11-24 20:26:32 +0200 by jprofit

sd_mutex and "App High" interrupt priority example

I am looking for some guidance and an example on how to use the sd_mutex related functions. So far, I keep getting into the HardFault_Handler whenever I call sd_mutex_acquire.

I'm pretty sure this has something to do with the ... (more)

666
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2
votes
2
answers
Last activity 2014-11-24 18:30:33 +0200 by Lucast85

Tips on ULP, BLE and SoftDevice S110 with PCA10001 [nRF51822]

Hello Nordic people!

I'm developing my first firmware on nRF51822 and I need help with BLE, profiles and SoftDevice S110 stack.

Application it's a speed sensor for bicycles. I wish minimum energy consumption. Today, FW is capable to ... (more)

80
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no
votes
no
answers
Last activity 2014-11-24 17:39:56 +0100 by valdev

Trouble with using spi_master_example [closed]

Hello,

I have troubles using spi_master_example. I want to control by spi a slave device from the nRF, I am sending sequences as expected and my slave device answers me correctly, I can see this sequence on the MISO pin ... (more)

729
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no
votes
2
answers
Last activity 2014-11-24 16:36:40 +0100 by hristozov

DTM unmodulated carrier signal spectrum

Hello dear Nordic community,

currently I am working on the NRF51822 Direct test mode (DTM). I tested the ble_app_dtm example and it works fine for me. This means I can send commands according to Bluetooth specification Ver 4.0, Vol ... (more)

747
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1
vote
1
answer
Last activity 2014-11-24 15:23:40 +0200 by Stefan Birnir Sverrisson flag of Iceland

Change DFU start address and application start address [closed]

I changed the dfu start address to 0x00 and application start address to 0x8000. The application use the RTC0 IRQ to count the timer, but the RTC0 IRQ did not work correct(if the start application address is 0x00,the ... (more)

372
views
6
votes
2
answers
Last activity 2014-11-24 15:18:18 +0100 by Asbjørn flag of Norway

Is there a way to detect or be notified when an advertisment is about to be sent?

Says it all in the title. I'm making a sensor which puts its data in a non-directed non-connectable advertisment packet. I want to read the sensor just before it is sent. The timing is not super-critical - within 0.1s ... (more)

159
views
2
votes
2
answers
Last activity 2014-11-24 15:13:27 +0100 by Asbjørn flag of Norway

nRF51822EK communication with an external MCU?

Hi,

I bought nRF51822 Evaluation Kit and would like to blue wire an external MCU( Kinetis Cortex-M) to talk to the SoC. It looks like the SoC on this board has many GPIOs access but I'm not sure which ... (more)

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