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# 28,724 questions

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## nRF51822 s130 sd, external interrupt on cscs example

Hello, i am using SDK12.2.0 and SD s130 on a nRF51822 (AC) and i am trying to add an external interrupt on a pin in the cscs ble_peripheral example. The code i am using (and added to example ... (more)

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## Regarding mesh provisioner

Hi,

I am establishing a Bluetooth mesh network with nordic boards (nRF52 DK) having one provisioner and many provisionee devices. But I have one doubt, if I remove the provisioner from the network, what happened to the network: 1). Is ... (more)

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## SPI blocked in internal_transaction_in_progress

Hi Nordic support,

I am porting another nRF52840 SPI OLED driver based on nRF5_SDK_14.2.0_17b948a\examples\peripheral\spi_master_using_nrf_spi_mngr

At first, it works fine without button event. (I just disable it) All graphic function can work without error in the ... (more)

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## nrf52832 Serialization application side sample

Hi Nordic support:

  Our project used nrf52832 BLE chip, It's UART connect with another ARM application CPU.  I reviewed nRF5_SDK_14.1.0,  It looks following example could be used as connectivity side nRF5_SDK_14.1.0_1dda907\examples\connectivity\ble_connectivity\pca10040 ...
(more)

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## As to fds_record_update error of sdk 14.0.1 (NRF 52832)

Hi,

I am trying to use fds file system to save some data in flash, when using the example code of sdk 14.0.1, it is not normally operated,

NRF_ERROR_INVALID_PARAM error is happened with fds_record_update function, I update the ... (more)

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## APP_COD_BASE for SD130

Hello All

I am using an SOC which has nrf51822. I am trying the blinky example with the softdevice. When I debug the code, the code first enters the SystemInit function where it inits some peripheral. When I step into ... (more)

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## nRF52810 bootloader no timeout when OTA fails

Hi,

I'm using nRF52810 on SDKv14.2 and I have changed the bootloader from 52832 to work for 52810. I could do OTA now. I found that the bootloader there is no timeout when OTA fails. So I add ... (more)

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## nRF52810 data recieve problem

Hello All,

I'm using nRF52810 with SDK 14.1 base on ble_app_uart example. where i am continously receiving the GPS data via UART i changed the uart pin configuration as **#define RX_PIN_NUMBER 11

# define TX_PIN_NUMBER 9** But I am ...

(more)

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## The nrfclouddemo.hex is not working on nrf52840(pca10056)?

I can connect the kit to the nrf cloud and even add the device to the gateway but i cannot switch on and off the leds.Where is the source code for the nrfcloud example?I cannot find it in ... (more)

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## How can I assign the maximum available pages to FDS?

I see I have more than 100 free pages (~ 101 KB) on Nrf51822 with SD130 but how can I assign all of them to the FDS module. I am going to manage a database with FDS on the maximum available ... (more)

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## 52832 flash write

hi: i have a problem when i want to write data to flash.by the way,my program is running with no-system. i found the program is always restared when i enabled erasing, (NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Een << NVMC_CONFIG_WEN_Pos)), but it is ... (more)

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## Bluetooth Pairing with NrfUART in android

The Bluetooth pairing is not working properly. I am developing the Application based on Bluetooth pairing with UART. Here I have included my concept and Program.Help me out to fix the problem.

My Expected Result is If the user ... (more)

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## sending data to server

Hi,

I have designed one custom board using nrf52810 and GPS module. where i can get the gps data via UART to my nrf52810 chip and then from nrf52810 sending same data to my smartphone over the ble. now my ... (more)

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## sdk 14.0 power consumption

Hi

We are using sdk version 12.2.0 and trying to change it to sdk 14.0.0. However, when I measured the power while converting the code, ppk confirmed that the sdk 14.0.0 version consumes much ... (more)

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## Plan for nRF SDK for Mesh

I would like to ask for any information regarding the near-future plan for the nRF SDK for Mesh.

Are these features planned? And if so, when would they be implemented?

• Friend and Low Power Feature
• Proxy Feature
• Compatibility with more ...
(more)

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## compile error of DFU with nRF52832

Hello,

I am using 14.0.1 sdk, and hope to use DFU (Secure bootloader), I am trying to use buttonless app in my app (uart example app), when copying some codes related with DFU function as follows, I have ... (more)

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## NRFJPROG ERROR return code 9

We are developing a test jig that also programs the Nordic nRF51822 on our board.

We are receiving the following error message from the command line programmer: NRFJPROG ERROR: nrfjprog encountered an error condition that should not occur. Please report ... (more)

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## scan_start() program crashes

Hello all: I have a big problem，I use SDK13.1, softdevice is S132_V4.0.2.When the program starts executing scan_start(),the program crashes.At first I thought there is a big bug in my program,When I use ... (more)

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## [bugreport] nrf_log deferred mode hardfaults

Hi,

I think I've found reliable way to cause hardfault when executing nrf_log_frontend-dequeue() and most likely cause nrf_log modules to write outside of allocated buffer space while in deferred mode.

It happens on (at least) SDK13.1.0 with ... (more)

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## JLink cannot find nRF52810

Dear all,

I have made a nRF52810 module according to the reference circuit in datasheet and connect it to my PC via Segger JLink & SWD. Only 1 out of 3 notebook I tried can program the module via nRFgo studio ... (more)

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## Trouble with non-concurrent multiple peers

Using an nRF52832 with SDK 14.0.0, S132 SoftDevice

We are able to connect to the device with an iOS/Android phone just fine.

Upon disconnecting, a second phone is not able to connect until the nRF52 device is ... (more)

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## disconnect but no log

when i use sdk14.2.0 and nrf52810 nus service send data， When the app transmits data for some time, the app prompts to disconnect, but the slave does not log any log prompts and stops working

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## PCA10056 USB CDC Demo, no polling

Hello, I am trying to modify the usbd_cdc_acm_modified example project in the SDK to do the following:

1. Echo the received character back to the terminal.
2. Get rid of the main while loop polling while (app_usbd_event_queue_process()) so that everything is handled ...
(more)

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## Converting incoming messages to Unicode.

I have successfully managed to communicate back and forth ( message ,Temp and Humidity data) between Two Arduino Nano using NRF24L01 module. However when I am trying to receive the same block of information in Raspberry Pi3 it is not converting ... (more)

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## 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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## 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)

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## 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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## Guidance on how to send eddystone based advertisement URL from nRF51822 beacon

Hello All

I am planning to install the nRF51822 beacon, wanted to know how to setup so that the beacon broadcasts repeated eddystone based advertisement URL/ packets to any smartphone etc containing links,product images etc

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## notification and power_manage function

I would like to send a large number of bytes from nrf51822 to my central device. To be everything reliable and efficient I decided to use characteristic with notification. The test method is implemented in the ... (more)

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## How to fix UART behavior in segger?

Still playing with my app. Since RTT (or whatever it was, when printf was printing info to segger debug console) was ruining the debug process, I just switched off RTT and disabled uart module. But now I need some way ... (more)

#### Statistics

• Total users: 26335
• Latest user: Lila Jackman
• Resolved questions: 11553
• Unanswered questions: 4026
• Total questions: 28724

## Recent blog posts

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• ### Bluetooth on a desktop computer (Windows, Mac, Linux)

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## Recent questions

• ### System off draws more then 80µA

Posted 2018-01-22 22:15:19 by ruetten
• ### How to add driver to an SDK example, in Segger Embedded Studio?

Posted 2018-01-22 21:37:18 by Mark Leavitt
• ### Send more than 60 characters with each call to ble_nus_string_send

Posted 2018-01-22 21:20:21 by fkoran
• ### DFU succeeds but flash is erased

Posted 2018-01-22 20:42:54 by brett_anderson
• ### Uart example stops blinking after a while

Posted 2018-01-22 19:56:29 by oliverpoc