# 26,080 questions

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## can't program nrf52832ciaa

can't program nrf52832ciaa

I can connect the core through segger commander

I can erase the chip after push the download bottom in the keil 5 ,and erase the chip

but I can't program , what's wrong ?

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## nRF52840 and others " printf()"

Hey Everyone,

I am new to nordic development. I am really used to programming with easy environments like the Arduino. I have seen some examples using the printf() command.

I am using Keil uVision and can use the debug mode ... (more)

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## Help with breakpoints on Eclipse with sdk14 please

Hello

I have setup my Eclipse(neon3) on Linux following the instructions in https://devzone.nordicsemi.com/tutori...

I cant compile and flash the image. But cant breakpoint. I have tried the solution in https://devzone.nordicsemi.com/questi.... Updated ... (more)

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## Maximum power consumption

Hi, were are looking forward to redesign our PCB. The nRF51822 will communicate via I2C which sinks up to 3 mA and 15 IOs will source the maximum rate of 15mA. Additional to this, the Bluetooth will consume power.

I ... (more)

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## Advertising restart after a disconnect event

Hi!

Using SDK 14, I am advertising and see my device on the phone with nRFConnect. The indication LED flashes (indication) properly and in fixed intervals. When I connect with my phone the LED lights up without flashing as expected ... (more)

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## Maximum power consumption

Hi, were are looking forward to redesign our PCB. The nRF51822 will communicate via I2C which sinks up to 3 mA and 15 IOs will source the maximum rate of 15mA. Additional to this, the Bluetooth will consume power.

I ... (more)

17
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## Unit testing with Unity and SoftDevice

Hi,

I'm currently in the process of integrating unit testing into our firmware development process. I'm trying to execute on-target tests with the Unity test framework, using the Nordic-modified version provided in this post.

This has been working ... (more)

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## How to reach nRF52840 UARTE current supply specification ?

Hi, I work on the nRF52840-Preview-DK board. I try to make a ble to uart bridge and I start with the nRF5 SDK 14.0.0 ble_app_uart example.

I compare the current supply of the example and the same code ... (more)

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## how to write a functions(program) for transmitting and receiving data over uart using nrf 51822?

Hi, there i am using nrf51822 to communicate with quectel ec25 .i want to send AT commands over uart and receive some response from quectel.for eg. i am sending a "AT" command i should get "ok" response in return ... (more)

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## Any way to increase TX buffers on S110 (nrf51822) ?

I've read that the number of tx buffers on the S110 is fixed at 6, however I've also read that this may be configurable on future versions of the softdevice (https://devzone.nordicsemi.com/questi...).

I can't ... (more)

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## pstorage issues

Hi

I'm trying to use pstorage to save some info (device name, and user info). I've found the following links with examples: http://infocenter.nordicsemi.com/inde...

https://devzone.nordicsemi.com/questi...

Which have code that looks rather ... (more)

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## Error in Eclipse GCC when build project

I am encountering some problem in building eclipse project following the tutorial at https://devzone.nordicsemi.com/tutori... .

Previously I succeeded in building with another simple example project. But when I move on to use my project, it is not ... (more)

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## Write in flash nrf52832 sdk 11s132 softdevice

Hi all,

i need to write in flash, and i try to use the example flash write of sdk. It works correctly but when i put it in my code, the writing register ( NRF_NVMC->CONFIG = (NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos);) failed.

The difference ... (more)

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## How to use fstorage in SDK V14.0 with S132 v5.0

Hi,

I have used fstorage to save data in flash in SDK V13.0 with S132. But in the SDK v14, it have changed so many such as fs_config_t struct has been removed and I don't know how to ... (more)

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I'm using the 1.0.1 nRF Sniffer and 1.10.10 Wireshark on Windows 10 64bit. The firmware 1.0.1 is programmed to nRF51822 dongle using Jlink 6.12a. The exe works fine when no device is ... (more)

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## NRF52832 - ETSI EN 300 328 V2.1.1 (RED - 2014/53/EU )

Good morning,

Some contextualization first:

At my company we developed a product that is based on your NRF52832 microcontroller. We are currently entering the certification phase and are in extensive talks with the Laboratory that is guiding us through the ... (more)

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## About several problems nrf51822 PWM

How do you do 1.In the Nordic \ nRF5_SDK_12 _f012efa 2.0-3 d \ examples \ peripheral here, there are three PWM routines: Low_power_pwm, pwm_driver, pwm_library but only low_power_pwm and pwm_library can be used for NRF51822 right?

2.Low_power_pwm pwm_library and what ... (more)

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Hello, I am trying to measure the current consumption. i could cut the SB9. and i use analog discovery and measured!! the picture is shown in below.

https://gyazo.com/b9f5607148cd9415ea7...

This is a picture when I took current consumption ... (more)

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## TWI write BB Suspend

Hi all,

I noticed that the TWI driver is suspending the clock between each byte I send. My peripheral seems not to like that and so only ack but does not change it's register. I have a nRF52832 and ... (more)

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## Is there a mesh gateway project in mesh SDK?

I got the BLE mesh SDK from: http://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF5-SDK-for-Mesh/(language)/eng-GB

I want to develop a mesh gateway to connect the internet. Is there a example gateway project for mesh?

Thanks.

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## ble_app_uart reset

When using ble_app_uart, I set the advertising timeout to 10s, but after the timeout did not enter sleep, but automatically reset,my judgment is based on the terminal to send "Uart start".

I found a lot of related problems in ... (more)

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## how can I debug nrf52832 by step

Hi I have run this example code nrf5_SDK_for_Mesh_v0.10.0-Alpha_src\examples\light_switch\client\light_switch_client_nrf52832_xxAA_s132_5_0_0.emProject

when I operate "Debug -- Go ", then press the button as follow picture, it run well.

but when I operate "Debug -- Go", then press "F10" to ... (more)

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## BLE Mesh Project with BLE_NUS

Hello,

I'm using the sample project from this post.

Following the steps and using nRF52DK, one for server and one for client. I've modified the server count from 3 to 1 in client project .

#define SERVER_COUNT (<<1>>)


The ... (more)

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## Write to FLASH after BLE init

I am working in sdk14 nrf52832 I want to write flash after BLE initializing ,but write flash it has no action

while(sd_flash_page_erase(64) != NRF_SUCCESS){} //address = 0x40000
while(sd_flash_write((uint32_t *)0x40000,(uint32_t *)&ptr,((sizeof(TypedefBle)+3)/4))){}
NVIC_SystemReset();


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## 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)

18
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## Dynamically allocated data get overwritten

Hi, I am writing an application where I need to parse data into dynamically allocated structs at system initialization.

I have observed that some of my dynamically allocated uint8_t array got their first elements somehow overwritten. I am 100% certain ... (more)

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## NFC Capacitor tuning

Hello everyone, I want to integrate NFC to one of my projects and I am having a problem with the value of some of the capacitors. I am looking into using the nRF52832.

I need to figure out the value ... (more)

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## System ON mode in nrf51822

I'm new to the nrf51822, i was connected led to one of the gpio pin of nrf51822 development board. In 1 minite i want to toggle led 20sec and remaining 40 sec in sleep. After 40 sec (sleep time ... (more)

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## Voltage Level togic UART

Hi All,

We are working with one of project where we are interfacing our nRF51822 with GPS module via UART . now the query is our GPS module works on 3.3V rx/tx logic but nrf51822 works on VDD(3 ... (more)

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## ble_app_hrs link in Eclipse tutorial is broken

Where can I download the example project that can be imported into Eclipse?

When I follow the link, I get this message: "The current document displayed does not exist in the ... (more)

#### Statistics

• Total users: 24904
• Latest user: Kristal Fielder
• Resolved questions: 10659
• Total questions: 26081

## Recent blog posts

• ### How to build continuous integration and delivery process for embedded SW development

Posted 2017-10-03 11:01:29 by Yaniv Nis
• ### Multiple channels in RTT

Posted 2017-09-29 11:51:52 by Krzysztof Zaraska
• ### 6 Things to Know about Bluetooth Beacons

Posted 2017-09-22 08:27:00 by Rose Martin
• ### Creating a Keil project for a Bluetooth Mesh example (Updated for 0.10.0)

Posted 2017-09-19 12:08:11 by Kristian Skordal
• ### Using millis() like in Arduino.

Posted 2017-09-18 11:58:04 by schef

## Recent questions

• ### can't program nrf52832ciaa

Posted 2017-10-17 18:34:31 by luckxiaoer
• ### nRF52840 and others " printf()"

Posted 2017-10-17 18:30:44 by ToasTer86
• ### Help with breakpoints on Eclipse with sdk14 please

Posted 2017-10-17 18:18:00 by Tony
• ### Maximum power consumption

Posted 2017-10-17 18:15:05 by Ruediger
• ### Advertising restart after a disconnect event

Posted 2017-10-17 18:14:18 by Yatekii