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,
I am designing a PCB with NRf52832 IC. I have a query regarding the width of the feed line. In reference design files, the width of the feed line is 30mil. I have...
Hello,
I want to receive the More data ( >20 bytes ) in nrf51822 Board from the nRF ToolBox UART module.
is this possible?
What will be changed to be done in peripheral...
Hi,
I have designed a custom PCB using NRF52832 IC.I have followed Sparkfun NRF52832 breakout board for placement of NRF52832 IC core part(including antenna) which is similar...
Hi,
I am using nRF52832 with NUS and buttonless DFU running well next to each other (SDK13). Instead of the standard way to jump to the bootloader (writing a 0x01 to the...
We have a device running SDK 11, without a crystal. It was using:
#define NRF_CLOCK_LFCLKSRC {.source = NRF_CLOCK_LF_SRC_RC, \
.rc_ctiv = 16,
.rc_temp_ctiv = 2}
...
Background:
In a previous posting I had asked if anyone knew of BLE connection parameter guidelines for Windows 10.
The general response was, yeah ios has BLE connection...
Hi all,
I have a use case where I have about 40 buttons that can be pressed anytime. I need know when these buttons are pressed on multiple receivers devices. So every...
Hi ,
I would like to know about Bluetooth 5 compatibility with smart phones having Bluetooth 4.x
The observation is-
a)the android application scanning for BLE device...
Hi,
I'm trying to setup 3 server and 1 client.
Currently, I encountered a problem that a successful provisioning to 3 servers happened only when the power of client is...
I tried importing the Keil 5 SDK 13 project from github.com/.../nRF5-ble-timesync-demo into Segger.
I followed all the directions from devzone.nordicsemi.com/.../ However...
Hi,I have trouble when I try my nRF51822 board with example program of hrs. I use nRF Master Control in my phone to connect with my board.scanning is ok.But when it try to...
Hi guys,
I'm investigating on a problem we found in our system. It seems not related to our custom pcb or firmware, you can replicate it with the following setup.
Setup...
I will need to store some data (and edit it again later) and fetch it later in the nrf51dk even after turning it off and back on.
How can I store such persistent data in...
