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...
Hi
I tried following the eclipse installation tutorial: devzone.nordicsemi.com/.../
And after a while I got eclipse to handle the Nordic stuff, but when I try to import...
Please find attached several fixes for bugs / incomplete protocol implementation in the MQTTSN stack that we have identified for inclusion in future versions of the SDK. ...
The Thread SDK is pretty awesome! :) However, It does has a bit of a learning curve for me because it only uses UDP instead of TCP.
While searching I found an MQTT variant...
We're developing on a custom NRF53 board. With the I2C bus disconnected from all peripherals, but with external 10k pullups connected, we get the following waveform when attempring...
Hello,
We are working on a research project in Sheridan College to create an indoor positioning system using BLE 5.1’s Angle of Arrival feature. We noticed that nRF52833...
Hi,
I am using the nrf52840dk trying to connect my bike power meter over ANT+, to then forward data to cloud (will be using the nrf9160dk and then the thingy91 once I get...
Dear Support,
I'm evaluating a tiny BLE chip that we can do:
reading multiple three SPI sensors: pressure sensor, accelerometer, and FRAM.
So with your BLE chip...
Hi,
Using 52833 it seems that sometimes the radio quits responding, ie, it is in NRF_RADIO_STATE_DISABLED state and there is
no obvious way to get it out of that state...
Hello,
I'm trying to program the ble_app_uart example program from SDK 17.0.2 in Segger Embedded Studio using softdevice 132 to a custom PCB (with the nRF52832 chip) using...
Hi,
I am using nrf9160 to handle the MQTT protocol and collect the data packets from another microcontroller using the UART interface.
Sending the data to the server using...
Hello all,
since Tuesday I'm trying to get the example project ble_app_uart_c (SDK Version 12) running. Meanwhile I can compile the project without errors, but when I flash...
I am trying to set up the nRF52840DK to interrupt on the comparator input on A0 going above the threshold. I figured, I think, how to set the comparator up but I am havin...
Hello Nordic Wizards,
We are in the final throws of a project preparing to go to market. However we have identified a "strange" problem.
if the batteries driving the board...
I keep getting this warning message while I'm running the peripheral_uart sample on a nRF52820. Anybody had experience with this? I assume it has something to do with my heap...
Hello,
I would like to synchronize my mesh server's current time with my smartphone. It is possible using nRF Mesh Mobile Application ?
I saw on the mesh models list that...
