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...
I have a nRF52840 Dongle. When I connected it for the first time to the Bluetooth Low Energy app of nRF Connect for Desktop, it loaded automatically the firmware. My question...
Is there a way to read the mac address from the serial tty of an nRF52840? I have multiple dongles programmed with the BLE sniffer (nrf_sniffer_for_bluetooth_le_4.1.0) and...
Hi,
I was using the nrfx_saadc_buffer_convert to make everytime a single sample.
Now I did find out there is also nrfx_saadc_sample_convert. How do I initialize this...
I've been trying to debug a recurring hard fault around nrf_log_frontend_dequeue. This occurs sporadically (between 10-60min) into testing my firmware. When the fault occurs...
Hi all,
normally our system runs in low power mode. When triggering the SAADC the first samples (using oneshot mode) will be off (slightly too low).
I can work around...
Hi,
I need to create run time count that increases every 0.065536sec.
I found a way doing so by using HFCLK without any interrupts.
My questions are:
1) Are there...
Hi, I am working on the nrf52840 dongle using the softdevice.
I would like to know whether it is possible to add OTA DFU capability to the default open bootloader that allows...
Im quite new to development with the DK so bare with me.
Currently I am able to read digital values (0 and 1) from the potentiometer using pin P0.03.
I am using the function...
I had toolchain manager 0.10.3 and a project using NCS 1.91. Unfortenuately I have updated the Toolchain manager to 1.0.0 and now my project does no longer show up and the...
I have a NRF52840 based custom device that I can program just fine with a NRF52840-DK.
However, when I try to use a NRF52833-DK I can erase and flash the softdevice just...
Hi,
I work with nRF52840 DKs and I am working for indoor positioning system based on RSSI signal strength. I want the RSSI signal strength to be sensed and transmitted to...
Hi Devzone team,
My customer wants to design the LTE-M antenna for their tracker project in US market, do we have any antenna reference or design guideline? I see we have...
Hi,
I am looking for a BLE module that I can program to send a Thyrmistor signal 250 meters or more. The BLE module has to be small and able to collect A/D Convertor and...
Hi ,
I am trying to get GNSS on thingy 91 to work. It seems like I have the same issue as this thread:
I cannot get a fix. Currently, I am using the 1.3.2 firmware ( the...
Hello, I am developing a product using nRF52840. I use the DK board to debug and download.
However, I would like to implement a firmware update function using USB on my...
