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...
Using GCC 4.8.4, it seems to me, that the nrf52_common.ld shiped with the sdk version 12.2 contains a bug:
If an image is defined where the .text data fits into the flash...
I am attempting to connect and send data between an nRF51422 (DK) running the UART Peripheral Example Code and an nRF52832 (DK) running the UART Central example. I am able...
We are a medical company utilizing the NRF51822 board with SDK 11 for our application. As part of filing for approval for our product from the FDA we are required to prove...
There is a corner case in pstorage_raw.c that can cause a deadlock between pstorage module and the pstorage system event handler. This in turn will cause all the future pstorage...
Hi,
I just implemented LESC Numeric Match on the NUS service for my peripheral device (based on ble_app_multirole_lesc example). I am able to connect to my device using...
I am using the esb_tx example on an nRF51 DK board modified to send BLE advertising packets at 1 KHz.
I am receiving the packets on a BlueTooth sniffer. The contents of...
Hi,
i'm designing a board based on NRF51822-QFAC chip and i'm using this antenna chip 2450AT43A100E and this balun 2450BM14E0003T .
I put the balun as close as possible...
I have __asm("BKPT #0\n") in my code. When running without a debugger, it seems to generate a hard fault exception (which I can tell because I have a hard fault handler that...
This week I worked myself to a series of what seemed to be problems boiling down to one issue:
The Notification Write Response is lost when bonding has to happen first. ...
I'm trying to save power on my HID keyboard application by disconnecting the Bluetooth link after some time of inactivity. As soon as there are keystrokes to send, the device...
The question has been answered before, but the answer references a document called nAN-29 at this link: www.nordicsemi.com/.../73843444 . Which doesn't seem to be working...
Hello,
We use the PCA00031 dongle running the MEFW 0.9.0 in our production environment to validate a sensors accuracy. The PCA is controlled by a C# test program using...
Could someone explain the pin numbering scheme in regard to the interrupt setup handler?
To be specific, what pin number should be passed to nrf_drv_gpiote_in_init for...
In the ble_app_att_mtu_throughput example for the PCA10056 I am getting a "fatal error in the include chain" pointed from the #include "amt.h" line in amts.c. Specifically...
Hi,
I'm working on a firmware that is used in a nrf51822. I discovered an unwanted behavior of my system.
When the system is in power_manage mode, it can wake up in two...
