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25
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1
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Last activity 2015-03-31 14:22:47 +0200 by Asbjørn flag of Norway

Apple MFi (Made for iPhone/iPAD/iPOD) - Is NUS a Standard Bluetooth profile?

Hi, I'm making a product with the nRF51822 chip.

I was looking at the MFi.

As you see in the picture, the condition for not taking the MFi is like this.

MFi

At the App store, the nRF UART App ... (more)

14
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1
answer
Last activity 2015-03-31 14:21:09 +0200 by Asbjørn flag of Norway

What is maximum limit of payload on nRF518222 ?

Hey I am working on nordic nRF51822, I have a doubt. Basically I want to use it as an iBeacon and along the iBeacon payload I also want to send some services. Is that fundamentally wrong or if not then ... (more)

27
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no
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1
answer
Last activity 2015-03-31 14:04:09 +0200 by Aryan

\nRF51_SDK_8.0.0_5fc2c3a\examples\peripheral\uart didn't work

I download the demo project \nRF51_SDK_8.0.0_5fc2c3a\examples\peripheral\uart\uart.uvmpw to my nRF51-DK board, but uart didn't work,all 4 LEDs are on. Is there any mistake?

36
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1
answer
Last activity 2015-03-31 13:27:32 +0200 by Stian flag of Norway

latest dfu example

Hi...

Do you know how the " ble_app_hrs -> experimental_s110_with_dfu example" in SDK 7.2.0 examples works? how to switch to DFU and how to do over the air update?

i am using nRF51422 DK,with latest Softdevice v 7.1 ... (more)

17
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no
votes
1
answer
Last activity 2015-03-31 13:21:13 +0200 by Stian flag of Norway

Why is my DFU update crashing?

Hello,

I tried to get the bootloader dfu example with the S110 8.0 and the latest 8.0.0 SDK running but ran into tons of issues. The packet handling with KEIL is just insane so I ended up ... (more)

274
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1
vote
2
answers
Last activity 2015-03-31 13:02:10 +0200 by Stian flag of Norway

Help Map pins from LPC1768 to nRF51DK

Hi, I have purchased a Nordic nRF51DK which works perfectly. Suddenly I purchased an EaEpaper and start to follow this tutorial http://developer.mbed.org/users/dresc... to map it to my board. The problem is that I can't ... (more)

14
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no
votes
1
answer
Last activity 2015-03-31 12:49:40 +0200 by Stian flag of Norway

Creating an image file to DFU on SDK8.0

hi, to do DFU on SDK 8.0, if use the MCP on PC, it wants to select a zip file, if select a hex file, it will fail. I have created the bin image,but I can’t create ... (more)

11
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no
votes
1
answer
Last activity 2015-03-31 12:49:01 +0200 by Asbjørn flag of Norway

Best power setup

Hello,

In my application, I'm going to power the custom board with a fixed 5V connection. What is the best practice for powering the nRF51422 IC? I was thinking in using a DC-DC regulator from 5V to 2.2V ... (more)

42
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votes
1
answer
Last activity 2015-03-31 12:47:08 +0200 by Stefan Birnir Sverrisson flag of Iceland

PWM is not accurate with SoftDevice(nRF51822)

Hi.

We need to ring the Buzzer with 4.2kHZ PWM.

However, in the event of 4.2kHZ in nRF51822 PWM is inaccurate about 2us.

Please tell us how to fix it.

※link Very Simple Code(SDK v6.1.0 ... (more)

19
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no
votes
1
answer
Last activity 2015-03-31 12:44:47 +0200 by Asbjørn flag of Norway

6lowPAN on nrf51822

I use this step-by-step guide to run nrf51 Iot SDK example on nRF51822.

First I modified app_ipv6_coap_client_pca10028 such that I can run it on nRF51822. I downloaded latest RPI Raspbian Debian Wheezy Kernel v3.18. After that I update it ... (more)

no
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no
answers
Last activity 2015-03-31 12:34:53 +0200 by sukantan

Master Control panel 3.8.0.7 fails to search devices

Hi, After i flashed the firmware MEFW nRF58122 0.11.0, MCP "start discovery" button is disabled. I flashed the lower version MEFW nRF58122 0.9.0. Same issue.

There is exception after "Failed to import BleDfu" with Python exception ... (more)

15
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no
votes
1
answer
Last activity 2015-03-31 12:34:22 +0200 by Asbjørn flag of Norway

Setting NRF8001 in Interrupt Mode?

Hello Everyone,

Im using the NRF8001 for my application and was looking through the arduino SDK provided by nordic.

I want to run the device in UART mode but do not want to poll. Instead i would like to sleep ... (more)

22
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1
vote
4
answers
Last activity 2015-03-31 12:29:39 +0200 by RK

Using both TWI instances in nrf51822

Hello,

We're creating a new design with the nRF518122 as a TWI master to two separate I2C busses. No SPI devices of any kind, so I don't think there is a resource sharing issue. The reference manual indicates ... (more)

6
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no
votes
1
answer
Last activity 2015-03-31 12:26:49 +0200 by Asbjørn flag of Norway

cmd event handling (for lib_aci_get_address())

Hello!

I have been trying to figure out how to get the device ID/MAC address for the NRF8001, and I found the lib_aci function lib_aci_get_address() that calls a cmd event.

My problem now is that I don't know ... (more)

16
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no
votes
1
answer
Last activity 2015-03-31 12:13:59 +0200 by Asbjørn flag of Norway

How do you get the Device ID/MAC Address for nRF8001

Hello!

I am using the nRF8001 BLE chip on the Redbear Labs Blend board, and I need to get the MAC address, which I heard is also called the device ID. I understand that it is possible, but I am ... (more)

20
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no
answers
Last activity 2015-03-31 12:06:41 +0200 by Mike Zhang

After I installed keil and nrfgostudio, I run nrfgostudio, but an error happened, which says" an instruction of 0x6b607a05 quoted the RAM of 0x094af43f, but it cannot be read.

After I installed keil and nrfgostudio, I run nrfgostudio, but an error happened, which says" an instruction of 0x6b607a05 quoted the RAM of 0x094af43f, but it cannot be read.and the RAM address varied everytime when I run. but the ... (more)

17
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no
votes
1
answer
Last activity 2015-03-31 10:27:51 +0200 by shibshab

[nRF51822] How to include dynamic data in advertizing payload

I am trying to include an ADC reading and battery level information in BLE advertizing packets. I am learning from several BLE app examples in Nordic's github repository. I package data information in "advertising_init()" method, as many programs do ... (more)

56
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no
votes
1
answer
Last activity 2015-03-31 10:27:06 +0200 by Aryan

Why i need a zip file to perform DFU over the air with MCP 3.8.0?

Hi, i can say that i'm familiarized with nrf51 devices from some time ago. Using softdevice 7.1.0 and MCP 3.7.1 i was able to perform a device firmware upgrade using just a single .hex. With ... (more)

13
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no
answers
Last activity 2015-03-31 10:18:37 +0200 by chao

what is the maximum size of CoAP?

Hi all:

I know the minimum size of CoAP is 4 bytes. what is the maximum size of CoAP?

11
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votes
no
answers
Last activity 2015-03-31 10:14:13 +0200 by Samuele

ble_app_lbs (sdk 8.0.0) crashes

Hi to all, I've started a new ble_apps_lbs project from ble_app_template. I've an nRF51822 chip with S110 already programmed, I modify the settings for the target cpu, and memory layout.

I can program the chip, but when it ... (more)

12
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no
votes
1
answer
Last activity 2015-03-31 09:41:27 +0200 by Alex flag of United Kingdom

nrf51822 AES ECB decryption

Hi Team,

Can anyone help me on this?

How to decrypt AES ECB Encrypted frame?

I read earlier question asked on the same but still not clear.

14
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answers
Last activity 2015-03-31 09:38:32 +0200 by honey

Connecting phone or tablet over BLE

How many phone or tablet can be connected to a single nrf51822 or nrf51422 board over BLE?

39
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1
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1
answer
Last activity 2015-03-31 09:27:41 +0200 by Aryan

Storing variable values in system off mode.

Hi,

I need to store few variables values(long a = 4568;) to RAM (might be some other place) when the system went to sytem off mode .

How I can achieve in the nRF 51822 version 3.1 controller with SDK ... (more)

97
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no
votes
2
answers
Last activity 2015-03-31 09:24:04 +0200 by komal

dfu service not getting discovered

I have used sofdevice v7.1.0 and nrf51 sdk 6.1.0 the ble_app_hrs project which has support of dfu is not discovering the dfu services. i have enabled the BLE_DFU_APP_SUPPORT flag , then also facing same issue.

50
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1
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1
answer
Last activity 2015-03-31 08:51:27 +0200 by Stefan Birnir Sverrisson flag of Iceland

Why ble_app_hrs with s310 is not starting on pc10006(nRF51422)?

Hello, I'm trying examples supplied with SDK, running on pca10006 with nRF51422 chip board and Segger J-Link debugger.

I am able to 1. Erase entire chip with nRFgo studio 2. Flash and run blinky example. Behaves as expected 3 ... (more)

12
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no
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no
answers
Last activity 2015-03-31 08:46:33 +0200 by sridhar

IPV6 mesaages in implementation of iot sdk

After ping through link local address ,i am not getting any Router solicitation messages,neighbor solicitation messages and neighbor advertisement messages while i am capturing it from wire shark on raspberry pi. How to capture those messages after running of radvd deamon..?

24
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votes
1
answer
Last activity 2015-03-31 08:31:45 +0200 by PW flag of Poland

[nRF51422] Presence of several nodes

Hello. I have to detect presence of several nodes (max.8, battery supply). Addresses each of them will be known by master device. I don't have to send any data from central device to nodes, I'm interesting only ... (more)

18
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no
answers
Last activity 2015-03-31 08:23:31 +0200 by Anand Ramashetty

Effect on BLE functionality if i change NRF_CLOCK_LFCLKSRC_XTAL_20_PPM to NRF_CLOCK_LFCLKSRC_RC_250_PPM_8000MS_CALIBRATION during SOFTDEVICE_HANDLER_INIT function call

Hi ,

During SOFTDEVICE_HANDLER_INIT function call , if I change the NRF_CLOCK_LFCLKSRC_XTAL_20_PPM macro to NRF_CLOCK_LFCLKSRC_RC_250_PPM_8000MS_CALIBRATION , what is the consequences on BLE functionality . Will it affect complete product feature in the feature , any time related issue will affect? Please provide me details on ... (more)

22
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no
votes
1
answer
Last activity 2015-03-31 06:07:28 +0200 by RK

RTC Compare Interrupt Doesn't Happen After Debugger Halted

I am using the RTC1 compare event to generate a periodic interrupt. When I halt the bugger and and then run the interrupt doesn't occur. Looking at the RTC1 register set shows the counter value is greater than the ... (more)

54
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no
votes
1
answer
Last activity 2015-03-31 02:54:10 +0200 by oceanide

DFU OTA Firmware Image for production

Hi, I've an application developed with SDK v8.0.0 and S110 v8, that is using the bootloader to start the main firmware and to start the DFU OTA (in case the user request to do a firmware upgrade ... (more)

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  • Resolved questions: 3023
  • Unanswered questions: 449
  • Total questions: 6321