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...
I am trying to set up the nrf52840 dongle on IAR using an I-jet for debugging. I have iar version 8.32.1. I am using example project ble_app_blinky from the ble_peripheral...
Hi I met a problem during programming a combo of HID on nrf52. I have set combo HID that have keyboard and multi touch. after pairing my smartphone(galaxy note 8), keyboard...
Dear Colleagues,
I'd appreciate your advice on the selecting external or internal pullup or pulldown design for a wake up button which would cause minimal increase in current...
Hi.
I'm trying to make a bluetooth based sip/puff controller for disabled people. The main use case will be to enable people that can't use their hands, but move their head...
Hi, we have been experimenting with the ESB PRX and PTX examples and have integrated them into our code. We are using the PTX to continuously stream data to the PRX side and...
Hi,
I working on migrating my project from SDK 14.0 to 15.2 and are currently working on the secure_bootloader. In our current solution we use the __weak nrf_dfu_button_enter_check...
Hello everyone!
I am trying unsuccessfully to advertise a custom UUID as LBS along whit HRS but the examples use different functions to handle the advertising.
The blink...
Hi,
When I add a model that extends others (i.e. not a root model) to an element, should the extended models (for example root models) be in the same element?
Maybe the...
Hi , I am flashing applications related to UART / USB but after flashing I am not able to see the log on serial port as per seetings given in manual.
http://infocenter.nordicsemi...
hlo sir , In my code there are 4 gpio interrupts,
if they comes at same time which will execute first.
There is any optional to assign priority to each gpio interrupts...
Hi - I have an application where I sometimes get an NRF_ERROR_INVALID_STATE error on disconnect when the distance between the client and server is beyond certain limits. ...
Hello to everyone. I´m trying to configure the buttons of my SDK nRF52 to turn on LEDs, but all the examples I´ve found here are using BSP_EVENT_HANDLER. So, my question is...
Hi,
I am developing an application on an nrf52840 based custom board that includes a dfu bootloader. Currently this bootloader is the example secure one. This will be tweaked...
Hi,
I spent a lot of today trying to get or even to find instructions on how to get log messages (RTT) out of both the app and the bootloader I am working on. This was the...
Hello all!
I tried to develop a small BLE application and got stuck with endless loop in nrfx_uarte_tx() function (nrfx_uarte.c driver) which loops endlessly in these lines...
