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,
My behavior is as follows
Turn on my device(use 51422) and advertising(2 Service and 3 Characteristic)
Turn on my cell phone(Samsung Note3),scan my device...
Hello:
I used analog IIC write MPU6050. Again after power download programs, mpu6050 can run up there ACK response. But the debug will not run. Simulation IIC because no...
Hello!
How can I communicate with my nRF24L01+ and nRF51822 at the same time. I can set up same channel, CRC-mode and I don't use ESB. But what about address? How do I set...
Hi
I am using 4 nrf52833 DK to see the relationship with RSSI and Dara rate. I have two running the nordic uart service and print out the RSSI, they are using TX=0. And...
Hi,
Recently I am studying the relationship between RSSI and datarate. Intuitively, I think lower the RSSI lower the datarete. Is there any physical evidence for this guess...
We're seeing the following intermittently while attempting to connect from a Mac/iOS Central.
Using Android as a Central does not produce the same error.
Sometimes...
Hi Nordic
Sample: asset_tracker_v2 (with only changes to overlay-azure.conf) SDK: 2.5.2 Modem FW: nrf9160_1.3.5
I have followed this tutorial https://learn.microsoft.com...
I am quite new to the nRF5340 Audio DK and used 's project on https://github.com/ace-johnny/nrfadk-hello_codec to get me started.
The overall project goal is to process...
In our specific application, we have an analog input signal to the AIN0 pin of the nrf52840 chip.
We know that the maximum negative voltage in a GPIO must be -0.3 V, and...
Hello Nordic Team,
I am working on the MQTT over Wi-Fi sample I previously installed the MQTT dashboard application from the link you provided https://www.zephyrproject...
When I compile the attached example project like this:
I get the following warning:
And the compile flags for main.c (taken from compile_commands.json) are:
I...
Hi all !
I recently faced an weird issue with a nRF5340 (on a DK board, and then a custom PCB). When writting to the PWM peripheral, configured to some GPIO pins, some...
I am trying to run central_uart example which is failing when bt_settings_init function is called. I debugged further and found that
settings_subsys_init is called inside...
Hi all,
I need to generate two 1 MHz signals with opposite phases. However once I configure the decode mode as "Individual" I don't have output signals. In case of "Common...
Hi,
Where can I find the nRF9151 CE/RED RF test results for the purpose of CE delta certification of a new product based on nRF9151? (i.e. leveraging existing nRF9151 certification...
I am trying to configure the absolute time in my application, which at some point receives the time_t epoch value from an external source and should update it internally so...
Hi ! I have 5 different bootloaders for 5 pieces of hardware that I would like to cycle test OTA DFU with BLE. I have some questions
Why does nrfutil dfu ble require a...
Hi,
after having issues with my devkit flashing the main MCU, the interface MCU isn't being seen on USB anymore.
LED5 is blinking rapidly.
The board is a PCA10040...
