• Modifying ncs 2.3.0 to work with a custom bootloader - need help `weakening` some symbols...

    I am using the `mcumgr` subsys to enable the DFU (Device Firmware Update) capabilities in a custom device that also features a custom (non mcuboot) bootloader. In order to get the so called Image Management Group SMP commands to work properly, we need…
  • Google fast pair Service and BLE

    Hello Nordic Team, I have a working project that uses BLE to communicate with a mobile app, and I am now looking to integrate Google Fast Pair as an additional feature. I’m trying to combine BLE LBS and Fast Pair Input Device functionality using Zephyr…
  • bt_hci_core: HCI driver open failed (-11) on nrf5340 custom board

    I am getting a bt_hci_core: HCI driver open failed (-11) with a custom board using nrfConnect for VS Code and 2.9.1 toolchain/sdk. The code is really simple (I'm not using the callback for simplicity): #define DEVICE_NAME CONFIG_BT_DEVICE_NAME #define…
  • Problems with building proyects for a custom nRF5340 board.

    Hi, Developmente setup: Windows x64, nrf connect for vs code, SDK and toolchain versions 3.0.2. I was trying to build a proyect for a custom nRF5340 board when I encountered a problem regarding sysbuild. When I first built a ble test for the custom…
  • nRF5340_Audio application with LSM6DSOX interrupt issue

    I'm trying to implement a fall detection feature on the headset side using the LSM6DSOX IMU sensor. The IMU is configured successfully, but the board halts after the INT1 pin is triggered. *** Booting nRF Connect SDK v3.0.1-9eb5615da66b *** *** Using…
  • Power supply for nRF5340 + nRF7002 combination for very low power consumption

    Hello, We are currently evaluating a very low power application using the nRF5340+7002. Our hardware design includes a complex power supply configuration, and we need to interface the nRF5340 with 3.3V GPIO levels while potentially using a lower VDDH…
  • Determining charged and charging on custom board with nrf5340

    I'm still new to this but particularly in regards to battery. I have a custom board with a nrf5340 and have been working on reading the voltage. I used the battery sample for testing, which seems to be working, though I'm not sure I have it configured…
  • Fabrication Drawing Questions for nRF7002DK

    Hello, I am designing a custom PCBA based on the nRF7002DK PCBA and I really need the Fabrication Notes / Drawing that officially went to the fabricator to direct the build, if possible, please. I am getting push-back from my NPI prototype vendor regarding…
  • nrf5340 ncsv2.9.0 ble dfu

    Hi team. Now i'm use soc nrf5340, and the ncs version 2.9.0. I want to encrypt my external flash using QSPI. I encountered some problems while using the nrf connect mobile app to perform the Bluetooth upgrade. file postion : E:\Project\SDK\v2…
  • Unstable Distance Measurement with Synthesized LFCLK (LFSYNT) on nRF5340

    Hello Nordic Team, I'm developing a ranging application on a u-blox NORA-B1 module (which contains an nRF5340) and have encountered a stability issue with the Nordic Distance Measurement (NDM) library when using the synthesized low-frequency clock …
  • nRF5340 Audio DK and FTDI_SPI

    Hi there, on the nRF5340 Audio DK, there is a FT2232H, which provides FTDI_SPI + FTDI_SPI_SEL. How this can be used, is there any sample for this available? And how it is configured on the FTDI Chip?
  • nRF5340 & nPM1300 decoupling cap

    Hi I have some questions about nRF5340 & nPM1300 decoupling cap nRF5340 1.For pin A3/D2/H11/K1/L5/L11, ref. SCH is 1uF*1 and 0.1uF*5, could we only connect 1uF*1 and 0.1uF*2? 2.For consider all VDD pin(A3/D2/H11/K1/L5/L11/B7/B10/E11/B12), could…
  • My nRF Connect for VSCode can not detect my nrf5340

    I'm using nRF Connect for VSCode to program my nrf5340dk but the SDK can't detect my nrf5340 on the boards (You can see in the image). Can anybody help me to fix this problem?
  • nRF SDK 2.9.2: BT_CTLR_RX_BUFFERS unsatisfied dependencies: BT_LL_SW_SPLIT (=n)

    I need help with this issue. I'm updating the code from SDK 2.4.2 to SDK 2.9.2. I had change the device tree to HWM2 and I'm using sysbuild. The build log is showing this warning: warning: BT_CTLR_RX_BUFFERS (defined at subsys/bluetooth\controller…
  • The peripheral_nfc_pairing sample code pairs and connects, but Android shows a "Couldn't pair" message

    I have been trying to use the ` nrf\samples\bluetooth\peripheral_nfc_pairing ` sample code on the nRF Connect SDK v3.0.2 to connect to a Samsung Galaxy A16 5G phone. The NFC pairing seems to work, and the connection is working. However, every time the…
  • Unreliable Ranging Behavior and Inconsistent Frequency on NORAB126 (NCS v2.9.0)

    Hello, I'm working with Distance Measurement (nrf_dm) using the NORAB126 module on nRF Connect SDK v2.9.0 and nRF Connect SDK v3.0.1. I'm facing an issue where, occasionally and randomly, the devices stop performing ranging between them. Once this…
  • Bluetooth LE Fundamentals Lesson 2 Exercise 3 bt_enable(NULL) failing on nrf5340dk, code -22

    Problem with exercise code in a developer academy fundamentals course. Exercise: Bluetooth LE Fundamentals Lesson 2 Exercise 3 SDK: v2.9.1 Board Target: nrf5340dk/nrf5340/cpuapp/ns Using the example solution files for main.c…
  • Thing91x Support for WIFI not enough RAM

    If I try to compile any of the WIFI examples for the Thingy91x I get a RAM overflow error. The only exception to this is the WIFI scanning example. If I build these for any other nRF5340 platform (like Thingy53) they build fine. It seems the Thingy91x…
  • Inquiry on DFU Update for Zigbee Firmware with nRF Connect SDK Version Upgrade

    We are currently using Zigbee Firmware built with nRF Connect SDK v2.7.0 on the nRF5340. We plan to upgrade the nRF Connect SDK to v2.9.2 and use the Zigbee Firmware built with this version. I would like to ask the following questions: Is it acceptable…
  • build custom board. i already write dts but error message about dts. please help me. i don't know what to do.

    code #include <zephyr/logging/log.h> #include <zephyr/net/socket.h> #include <zephyr/sys/fdtable.h> #include <zephyr/device.h> #include <zephyr/devicetree.h> #include <zephyr/drivers/gpio.h> #include <zephyr/drivers/spi.h> #include <unistd…
  • Issue using SKY66112-11 FEM with Distance Measurement Example on NORA-B126 (nRF5340)

    Hello Nordic Team, I’m currently developing a BLE ranging device using the u-blox NORA-B126 module, which integrates an nRF5340 SoC and a Skyworks SKY66112-11 FEM. I’m encountering an issue when running the distance measurement (DM) example. The symptoms…
  • Provisioning PSK at Manufacturing

    Hi, I'm working on provisioning a Pre-Shared Key (PSK) during manufacturing for an nRF5340 device. The device needs access to the PSK at runtime to generate authentication tokens with various nonces. Setup: Device: nRF5340 SDK: nRF Connect SDK…
  • Keep breaking nrf5340-DK boards

    Dear forum, We are using the nrf5340-DK development boards as an intermediate link to flash our own boards containing the nrf5340 chip. This is possible since there is an integrated segger debugger on the boards. However there is something sensitive in…
  • Bluetooth throughput reduced with more calculations executed

    Hi, I am developing an acoustic platform with my custom board with a nRF5340 CLAA chip. The board is recording audio data from two microphones at a sampling rate of 100 kHz (controlled by I2S). The recorded data is streamed out via Bluetooth. I tested…
  • nRF5340 Power supply usb setup configuration for battery powered device

    Hey All Im working on a new product and its the first time I'm developing around the nrf5340, I'm looking for some guidance around the supply configuration for maximum battery efficiency but minimal components ( the board is extremely small and already…
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