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...
Our product is a peripheral on the nRF51822. We develop on Mac and use gcc, make, etc with Visual Studio Code rather than Eclipse. Recently, we started getting close to production...
Hello,
I would be interested on knowing whether I may have a secondary UART on the nrF52 chip or not. I would like to communicate my nRF52 with a RN2483 and this is done...
Hi
I've just looked into the new released SDK 13.0.0 with support for the new S132 4.0.2 and the new PCA10056. On line in the release notes reads "This release does not...
I'm using the serialization code with pc-ble-driver for S130 (version 0.5.0).
I randomly get a deadlock in the serialisation code.
It can happen after a call to read, write...
Hi,
I want to know that what should be the supply voltage to NRF52 IC. Another thing is that we want to connect our product with NRF52. Our product has TTL wires which...
Hello,
Is there any methods to implement the "long press wake-up"? Pressing the button for 3 seconds to let device enter sleep mode and pressing the same button for 3 seconds...
Hello, I have a question.
The chip uses nRF 52832. MDK keil μVision V 5.22.0.0 is used as the development environment.
I am using nRF5_SDK_13.0.0-1.alpha_055eef3.
It...
Since September I get multiple warning messages on projects that use both the nRF51822 library and the mbed library. This is even true for example projects for the 51DK board...
Hi,
I put my nrf51 into power-on sleep mode by calling sd_app_evt_wait().
When I walk away with my mobile phone, the bluetooth disconnected and my nrf51 can receive...
Hi there,
I am currently working on a custom GATT profile for constant data streaming. I have to keep to GATT because I need multiple attributes to keep track of different...
Hi
I saw the Central and Peripheral example code has peer_manager in sdk 12.2 and BONDING_ENABLE in sdk10.
What are they does and where has document I can read.
If I...
From the Nordic errata [141] on NFCT not stopping HFO when going from activated state to sense state:
Workaround:
Power cycle the NFCT using the POWER register, then issue...
Hello.
EDIT: When I connect to nRF52832, Windows are not creating bluetooth serial com port. And Bluetoth Services are not getting.
How Can I do this??
Thanks.
Hi.
Is it possible for the NRF52840 to act as a USB host? or is it "only" a USB slave?
It would be awesome if we could connect a usb peripheral directly to the NRF52840...
