To be able to upgrade FW through UART, a bootloader for nrf51822 is required in my project. I have tried out the example bootloader in SDK. But this example is using softdevice...
I followed the forum posts and nan-29 to get eclipse 4.3.2 to successfully connect to JLinkGDBServer via a Segger J-Link EDU on Ubuntu Linux.
I can start the GDB server...
I'm using Softedevice 6.0.0 and SDK 5.2. and Keil 4.7.
I Modified bootloader project so it compiles with both ble and hci transports. Currently I use button_0 and button_1...
I am working on the proj that needed 2 MCU and nrf51822 work as slave.
I would like to know any ref on how to firmware upgrade on board without external tool?
We're looking for a Nordic nRF51822 based low profile/small USB dongle that we can use for our iBeacon software.
It would need to come complete with casing and the ability...
Hi all,
i want to establish connection between two threads in cmsis-rtos, can i use
1) semaphore to do this?
2)message queue should be used or any other ipcs can be...
Hi,
I have two CPU in our product. (STM32F2 and Nordic nrf51422).
I use serialization function to link those two CPU(refer to ble_s110_serialization sample)
But I find...
Hello Nordic,
As described regarding BLE Serialization in the link https://nordic-prod.zoominsoftware.io/bundle/sdk_nrf5_v12.3.0/page/lib_serialization.html, we want to...
Hello,
I have developed a custom board for the nrf52840 with the QFAA QFN48 package.
I am trying to program it with my nRF52840, I am using P20 of the DKconnecting the...
I am wondering if someone can help point me to a repo that explains how to create a gpio interrupt that can detect when my CS line goes from High to Low and jump to a method...
I'm evaluating an OpenThread mesh network in a large warehouse and considering the nRF21540 Front-End Module (FEM) for the router devices. To test this setup, I purchased...
Hi,I have been trying to configure two I2S devices where I will read data from mic SPH0645 with NRF5340 then I need to send that data to Amplifier(TAS2563).So,help me configuring...
Hi, I have a question regarding the operating voltage range of the nRF5340. I found that it can operate between 1.7 and 5.5 volts. However, can we restrict the minimum voltage...
Hello,
I am developing a BLE keyboard. I am using SDK17.1.0 and nRF52840. The part that is stuck is multi-pairing. I need to develop a function that alternately connects...
Hi Team, I am currently working with the nRF52833 BLE module, and I’ve noticed that the BLE device takes approximately 16 seconds to reconnect after a disconnection from the...
Hello,
I bought a NRF52840 USB Dongle for evaluation purpose (bigger project in mind).
I cannot even run the demo from NRF Connect (like BLE or RSSI viewer)!
On my...
I'm encountering issues while building my project with custom boards. Each board has a corresponding *_defconfig file with specific configuration options, and I also have...
Hi all，
Using the default sid_end_device demo without any modifications, using the default hello selection with nrf52840dk.
I downloaded the Alexa app, started Sidewalk...
Just for fun, I thought it'd be interesting to see how to implement a delay on the nrf52840 using the least possible power.
For any long period of time, you should use RTC...
Hi all,
I am trying to develop an application that frequently gets location info using gnss and also needs to work with battery.
In the Product Specification v2.2 I found...
I attempted to run the "peeral_hr" example under NCS2.4.0 and used nRF21540-EK to enhance the signal, but in reality, there was no significant change.
I attempted the following...
