# 1,999 questions

Tagged
• x
8
views
1
vote
1

## 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)

40
views
no
no

## MPU9250 is not showing output

i am working with mpu xx example given in nordic website. it seems code is working fine i.e. compiling and dumping into nrf52 DK, But not showing any output values.

i was trying to run nrf5-mpu-simple example but not ... (more)

21
views
no
1

## APP_TIMER in sdk v14 build errors when migrating from v12.3

Hello I am using PCA10040, nRF52832, and GCC toolchain

I have a project that was working good using sdk v12.3 but now I want to migrate to the latest and I am getting one particular error I have not ... (more)

8
views
no
no

## 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)

15
views
no
no

## LPCOMP interrupts are not getting triggered.

Hi,

I'm trying to use the LPCOMP of the nrf52 telit board.Configured lpcomp with the following settings :

Input : AIN2 Ref : AIN1 ( external ref. of 1.6V) Detection : Crossing

I've initialised the lpcomp and enabled the lpcomp with ... (more)

41
views
3
1

## Power consumption reading a large fifo - Easydma list vs Cpu reading

I am reading a large FIFO buffer from a sensor and there are at least two ways to do it - by simply reading the FIFO using the CPU and SPI in chunks of 255 byte blocks, or using EasyDma list ... (more)

22
views
no
1

## Type 4 tag NDEF record update

Hello,

i am working with SDK 14 type 4 tag library on NRF52832 hardware. I've based my code on the example "writable ndef msg".

When receiving a record, the NFC handler assumes, that NLEN is first updated to 0 ... (more)

43
views
no
no

## SD Write Problem

Hi Everyone,

I am trying to record data from ADC to a SD card every 500ms using nrf52832. I am following the fatfs example. Before I had a problem whereby every approximately 10s I would lose a few samples from ... (more)

61
views
no
1

Hi everyone,

I am having problems in getting the low power mode in SAADC to work. If I enable it in the config file then the ADC doesn't run anymore.( Blank in the RTT viewer) I have four channels ... (more)

71
views
no
1

## DFU Init file structure

Hello,

is there any documentation about DFU init file structure (SDK 14.0)? I used NRF util for creating DFU package, but i want to create my own app for that purpose.

61
views
no
1

## Multi central connect to multi peripheral example

Hi all , I using module NRF52832 and SDKv14 . I have 2 board central and 2 board peripheral . I want to connect each board central to all board peripheral and connect each board peripheral to all board central . Pls give me ... (more)

52
views
2
1

## extra current in idle ~450 uA NRF52832

Hi all

I'm trying to build a generator based on NRF52832. Outpit signals are: 8MHz clock and two latches signals highly sinchronized with clock - RGB_LAT and TXT_LAT. For this task I used TIMER1, PPI and GPIOTE. Actually my approach ... (more)

36
views
1
vote
1

## NRF52 Csense_drv capacitance calculation.

Hello,

I have a question on how to calculate the capacitance based on oscillator relaxation for NRF52. For example, in the Csense_drv example, when pin is touched by finger, it generates digits (e.g. 850). My question is how I ... (more)

33
views
no
1

## SPI Master stops working after S132 softdevice enabled

Initialization:

The softdevice is initialized as in the BLE UART example. The body of the ble_stack_init() function is identical to the BLE UART example.

SPI is initialized as in the SPI peripheral example, but I have gone over to writing ... (more)

27
views
no
1

## Transferring data received over ble to sd card

Hi All,

I am working on pca10040, nrf52832 and s132. I am using ble_app_uart and sd card, where i want to transmit data received over ble to the sd card.

Can you help me with how can i do so ... (more)

36
views
no
2

## How can I get rssi before I make a connection?

Hello ,

case BLE_GAP_EVT_CONNECTED:
APPL_LOG("Connected to target\r\n");
err_code = bsp_indication_set(BSP_INDICATE_CONNECTED);
APP_ERROR_CHECK(err_code);

m_ble_nus_c.conn_handle = p_ble_evt->evt.gap_evt.conn_handle;

// start discovery of services. The NUS Client waits for ...
(more)

37
views
no
1

## Soft device somtimes don't want to start advertising

I have an application based on ble_app_hrs_freertos from SDK14. Sometimes the application will not start advertising. When this happens, it does not help to power-cycle device. Sometimes it helps to reset the device with nRFgo Studio, simply to let it ... (more)

24
views
no
no

## Can I get current transmitting channel in nRF52832

Hi,

I'm wondering if I can get current transmitting channel during a connection. So 1. Is there a way I can directly read current transmitting channel? 2. If not, is it possible to know the hopIncrement for current connection ... (more)

30
views
no
1

## Can central board comunication with peripheral board and other central board

Hi all , I have one question . I have 3 board NRF : 1 peripheral and 2 central board . I want to transmiss data from peripheral board to central board 1 then from central board 1 to central board 2 . I want ... (more)

29
views
no
1

## tft 1.8 display st7735 with nrf52

I want to use in my project tft 1.8 display with st7735 controller. I'd like to use some based code but can find nothing except on infocenter nordic As I understand there are should be something to be ... (more)

146
views
1
vote
2

## How do I control the ram_start and app_ram_base in softdevice_enable for s132? They should be equal but are not. (0x20002000 vs 0x20002060)

I am having trouble running softdevice_enable. Here is what happens:

After main(void) starts the code is:

log_init(); // WORKS clock_init(); // WORKS buttons_leds_init(&erase_bonds); // WORKS ble_stack_init(); // FAILURE results in infinite resets due to a weak error callback.

ble_stack_init is boilerplate code ... (more)

117
views
no
no

Hi,

SDK14.0 nRF52832

I am using the dfu\bootloader_secure_ble example as my starting point. My goal is to create a very simple bootloader (with none of the dfu stuff, no SD functionality). Just a simple bootloader that the MBR ... (more)

29
views
no
1

## nrf52832 crashes during soft device update

Hi,

I am writing a boot loader which does not need to use the soft device as the image is being transferred over an SPI interface.

I have merged the softdevice and my application code together to make a single ... (more)

53
views
no
no

## Choose correct module based on nrf52832 chip

I have two supplier for provide me nrf52832's based modules. So I tested it and both is ok. The distance used pcb antenna almost the same (about 80m).

If I use on external antenna with gain 3dbi I got ... (more)

108
views
no
1

## SHT10 temperature and humidity sensor library for nRF52832

Hi,

I'm building a project with nRF52832 dev kit and the SHT10 temperature and humidity sensor, I'm searching for a library/example project of this sensor and the nRF52. So far I didn't find one, are you ... (more)

30
views
no
2

## Import Blinky-S132 KeilC project to SEGGER Embedded Studio

Hi all , I am beginning with SEGGER Embedded Studio . I flow 2 tutorial at :

I using NRF52832 board S132 , SDKv14 I follow these steps :

1. install nRF SEGGER Embedded Studio Device ...
(more)

31
views
no
no

## Uart init problem

I work with ble_app_uart example and want to move uart init and event handler into separate file( e.g uart.c). I just copy uart_init, uart_event_handler functions with some macros into uart.c file.

after that uart module initilized (check ... (more)

32
views
no
1

## No module named ipaddress when I directly run nrfutil from source code

I want to run the nrfutil to do some test, after I clone the source code from https://github.com/NordicSemiconducto...

I run the nrftutil directly from the source code without installing it by executing:

python nordicsemi/__main__.py

and ... (more)

73
views
3
1

## Hello,Can anyone help me out by giving me complete details of this?

i would like to print register values of an external sensor on my screen using UART! I'm reading and writing into those registers using SPI! Printing a normal message using NRF_LOG_INFO function is fine, but how do i print ... (more)

37
views
no
no

## Call to memset crashes my application

When I am stepping through my application code crashing at

memset(&cccd_md, 0, sizeof(cccd_md));


"Setup information:

• IDE: Using IAR
• Device: nRF52832
• Soft device: S132 v 2.0.0
• SDK version: 11.0.0

Memory organisation:

ROM : 0x1c000 0x7ffff

RAM ... (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