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...
Hello,everyone
I want to add dfu service in UART example ,but when I tried to allocate the RAM,Debug terminal shows nothing,Then I set the breakpoint in nrf_sdh_ble.c and...
I am using Nordic SDK 15.3 and nRF52840 to interface to a NAND flash TC58CVG2S0HRAIG. I'm new with the SDK and I have little experience with the SPI / SPIM functions. I started...
Hi guys,
I use SDK14.2 (i can switch to SDK15.0 if it makes any differences) and would want to integrate FreeRTOS to my existing project. I have tried the FreeRTOS example...
Hello,
I need to measure battery on my nrf52 beacon. My input voltage is 4*AA batteries(each 1.2V so in total 4.8V). The schematic provided by the hardware developer is...
Hi
Am trying to implement the secure bootloader for the nrf52840 for Dongle,I have gone through the existing example for nrf52382 but am unable to find any example for nrf52840...
Hi,
I'm using 2 nRF52840 DK to run the Serial Interface example, please refer to the link
Serial ( named it as DK-1)
Light switch server (name it as DK-2)
And...
Hi all, I have custom boards with sdk11 already sold out now we need to update those boards from sdk11 to sdk12.2. so we are planing to update sd+bl image. The present sdk11...
Hello All,
I want to use SAADC with BLE working Mode. In my application, I will be using Image transfer Example for full blazing speed so I don't want to use any CPU resource...
Hi there,
I am trying to design a printed meander antenna for the nrf52832. For this purpose I copied the antenna trace from the usb dongle that Nordic Semi produces. However...
Hi, everyone
how to increase the peripheral link count in multi role lesc example . even i have tried with NRF_SDH_BLE_PERIPHERAL_LINK_COUNT its not working
files.rar
Hello,
I am using nRF5 SDK14.1.0 and soft device s140_nrf52840_5.0.0-2.alph.I can program the board witt the bootloader(both pca10056 and pca10056_debug) successfully...
Hi!
I understand almost nothing about antenna design so I'm in general just copy and paste antenna design from reference board.
But this time I'm interested to make PCB...
Hello Nordic Support!
I ask questions after a year.
One year ago, I made a thermocouple thermometer using nRF52832. At that time, I encountered a problem that low current...
I'm working with the BLE experimental CLI example in the 15.3 SDK
I'm able to connect and read standard BLE services and characteristics, no problem.
However, discovering...
Hi DevZone,
I have problems with running the coexistence examples from the Mesh SDK. Specifically I’m most interested in the UART coexistence example ( https://infocenter...
