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54L15 Timer Interrupt cost too high. How to reduce interrupt cost? 0

As title Situration: 1. Timer00 2. every 4us interrupt occur result: 1. Enter Timer interrupt cost 700ns 2. Leave Timer interrupt cost 200ns 3. Totol cost...
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Started 6 hours ago
by Austin (S.F.)
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Using the Softdevice Controller without RTC Crystal 0

I want to use the Softdevice Controller without a crystal on the RTC. I configured my project with Advertiements look fine, but interaction with a BLE central either throw...
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Started 16 hours ago
by Sven Haedrich
Not Answered
NRF5340-AUDIO Unicast-Server / Unicast-Client configuration 0

Hi everyone, These days I'm evaluating the Nordic nRF5340 to manage audio from two microphones to one dongle station. To achieve this, I configured two nRF5340s as unicast...
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0 replies

Started 17 hours ago
by Pier Luigi
Not Answered
Planning to use 3.7V non-Rechargable battery with npm2100 with an additional diode? 0

I am planning to use 3.7V non Rechargable Battery with Diode and Reverse Protection circuit with npm2100, Would like to build a Fuel Guage model for this as this is not available...
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0 replies

Started 17 hours ago
by rsramki
Not Answered
MCELL search type for lte_lc_neighbor_cell_measurement() 0

Hello, I am currently evaluating MCELL location on an existing project, based on nRF9160. After some trial and errors, I managed to get it working. However, I ma a bit...
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0 replies

Started 18 hours ago
by Vincent44

Recent in the DevZone Blog

nrF52 Tutorial: ETM Instruction Trace with Keil MDK

Bob Boys

Hello I wrote a tutorial on using the nrF52 Development Kit with Keil MDK. www.keil.com/appnotes/docs/apnt_308.asp This document features essential debugging capabilities of the nrF52 series. ETM Instruction…
- 15 Dec 2017
One minute to understand BLE connection data package

viewtool

1.Profile During connection procedure of BLE, there are three packages: SCAN_REQ, SCAN_RSP 和 CONNECT_REQ。 SCAN_REQ： Scan request, issued by MASTER DEVICE, send to SLAVE DEVICE，sent by the Link Layer…
- 15 Dec 2017
One minute to understand BLE MTU data package

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1.Profile MTU: ATT Maximum Transmission Unit (MTU) is the maximum length of an ATT packet. The ATT MTU is defined by the L2CAP and can be anywhere between 23 and infinity. The implementation of the Bluetooth…
- 15 Dec 2017
Debugging on nrf52840 with GDB from CLI on linux

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Today I tried to find the better ways to debug program on nRF52840 PDK from CLI on linux. The ways that I tried [Failed] openocd (both stlink and jlink) & gdb [Succeeded] JLink & JLinkGDBServer &…
- 14 Dec 2017
The KEY POINT of example "ble_app_uart"

QQ645116977

This article baed on "pca10040", nRF52832 example code path "examples/ble_peripheral/ble_app_uart" IMPORTANT!!!! board config file of this example located in "components/boards/pca10040.h" and uart…
- 12 Dec 2017
Introduce smart motion controller - ELIO

caram5555

"ELIO" is a Bluetooth module and smartphone application that can drive motor(DC, Servo) and illuminate LEDs. This module mounts Nordic's nRF52832 and motor controller IC. Smartphone application can create…
- 12 Dec 2017