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'm using FreeRTOS and trying to get push button events to fire. The events would fire if I held the button down long enough. I found out that the problem was that "FREERTOS...
Hi
I have a custom board implementation that operates as follows:
Monitoring an input pin waiting for low high transition, BLE advertising of device.
When input event...
I'm having trouble having multiple characteristics for my custom service. My main.c looks like this:
Even though I have 2 characteristics added here, I can see just the...
Hi,
I had a few nrf51822s lying around and as I find the chip and the SDK quite convenient to use, I thought about using them in a small MCU project which does not need...
Above you can see the original and commented out modified code for the given example. The modification causes crush to
NRF_BREAKPOINT_COND; // On assert, the system can...
Hi,
I was looking at the Thingy-52-to-nrf52xx demo. I want to capture raw motion data no a DK and save it for further processing. Are there any options (I guess one is nRF91...
hi
i read in earlier questions on the devzone that nordic offers to review the schematic and layout as well as perform tuning free of charge to their customer. Is that still...
Hello every!
I am testing FATFS example with nrf5284 PDK .
CLK - P1.15
MISO - P1.14
MOSI - P1.13
CS - P1.12
My micro sd card module work correctly with STM32 MCU. I...
Hi all,
I am Using SDK15, chipset is nrf52810 , In ble_app_uart application i have added the BLE_NUS_C and TWI application code , before this i have added only TWI to ble_app_uart...
This blog describes how to set up SES (Segger Embedded Studio) for use with nRF SDK:
https://devzone.nordicsemi.com/b/blog/posts/segger-embedded-studio-a-cross-platform...
i'm using DFU for my project, it worked fine until devices has been bonded , DFU cannot work again. i checked and find out that after running interrutps_disable() , the devices...
Hello, I am using an nRF51822 chip, configured to run as a SPI slave. The device receives commands from master, sends commands out of the radio, and relays back RF payloads...
Hello,
I've created my own custom model which allows a client to control the duty cycle of a couple PWM outputs which are on the server. My model is quite simple, it just...
Dear all,
We're started studying payment via BLE with NRF52. But i looking for in Nordic website and google it seem a little subject and document. Can Nordic expert supply...
Hello,
I am getting really confused when using te SAADC to convert the read values into voltages.
I have seen that the example ble_app_proximity() uses the following...
