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,
if we want protect our (central) device against tracking and still allow it to connect with specific Peripheral we can use whitelist with IRK (and?) mac address...
eclipse_log.txt
link text
hello there i am trying to make environment for gcc and eclipse with nrf51. i am following above link. i changed my Makefile.winows ...
Dear all，
i configure pin 3 to float input.when the pin3 input 0.3VDD--0.7VDD,the chip current have 25--400ua,other is normal(4ua) Why?
SDK:8.1.0
s110
#define PHOTO_PIN_NUMBER...
Hi,
I am using nrf pwm library from here: github.com/.../nrf51-pwm-library . I am driving two gpios for a piezo buzzer.
I call pwm_init(), then use the call set_frequency_and_duty_cycle...
Hi,
I am trying to run a MIDI slave chip with the nRF51822 which requires me to use the MIDI standard baud rate of 31250. Is it possible to use nrf_drv_uart with a custom...
Hi all,
i use the function sd_power_system_off() to put the micro in system off.
First question is about the the type of system off. There are different type of system OFF...
Hi Forum and Nordic Employess
I use sdk12.2
The Pstorage libraries are missing. I want a Pstorage (flash write / read) example along with the Soft Device.
Thank You
Hi all,
I see there are similar questions posted on this forum, but none answers my question satisfactorily.
What I have:
we use the nRF52 we use UART0 to
transmit...
I'm using SAADC on a NRF52832 DK to read a analog channel between 0-3.3V. I wanted to supply current with the board VDD but it's value is 2.8V and they're not event stable...
Hi
I'm trying to get higher throughput when connected as a central by increasing my Tx&Rx bandwidth to high (from the default medium).
uint32_t nrfErr; ble_opt_t opt...
Hello,
my custom board does not have external 32kHz crystal. I have managed to use NRF_CLOCK_LF_SRC_RC in SOFTDEVICE_HANDLER_INIT instead.
My questions are:
...
I have a Custom Board made by using nrf51822 soc but pc is unable to detect the board by using Jlink debugger.
Stlink was able to detect only when frequency selected as 20khz...
Hello dear Nordic Team,
I got a question regarding the device filtering options. I am interested in putting 10 chips next to each other. But every chip shall have only...
As I came to understand, all the services & characteristics are registered in a "GATT table" of some sort, so my question:
What are the functions used to create and...
I want to update the nordic device from another MCU with HCI DFU. I cannot figure out how to write the packet header.
In the Nordic documentation, it is writen to read the...
