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...
hi.
i get a lot of information on Bluetooth and i want send it to 16 slave via ant.
what is the best way to send information over ant considering the speed of Bluetooth...
I have run into two SAADC issues on the nRF52832 using SDK v12.1.0. Any recommendations on how to fix them?
Issue 1:
When the Keil compiler optimization is turned up...
Hi,
Has anything changed in subject of one peripheral connecting to multiple central devices? All I need is little number (~3) of concurrent links with mobile phones.
I have been working on a custom board that uses a taiyo yoden EYSHJNZXZ module.
A tact switch is connected between P0.21 and GND.
I want to use this switch simple input...
Hi All!
I'm working a few weeks now with the NRF52 DK and having loads of fun!
Today I tried to make a central/scanner that scans for packages from a broadcaster. To...
I am trying to understand surface finishing of PCBs. In order to do so, can somebody tell me that what kind of surface finishing Nordic uses in boards like nrf51 - DK where...
Hello!
I am designing PCA10000 based PCB. Unfortunately my manufacturer can't make PCB using prepegs and cores that used in PCA10000 (4.4 and 4.8). They can make using 4...
Hi Nordic
After download SDK12.1.0, I want to extend DFU service in my application.But i find it different with the pervious versions.
For example, i can know how to...
Hi,
I have just started a new project in uVision, using the ble-app-template from the peripheral examples. its running on a custom PCB, with no 32Khz XTAL, and i have changed...
The user manual only tells information of pins , active low such things of led on nRF52832 Dk. There is no detail information of components on nRF 52832 DK board. So, can...
After reading the FAQ on DFU I still do not understand how the bootloader and SD DFU are performed so that a failure during the upgrade does not brick the device (see answer...
Hi,
I have some queries about ESB RF Communications.
1.The address : is it possible change RF communication to one node(Tx) to multiple nodes(Rx). If Yes, Where can...
Hello,
I found that after using SPIM I have forever additional over consumption (additional 400-500uA).
It was solved here in forum
And there is errata 89
[edit]...
I use Gazell to acomplish one host --two device.When i just have one device,everything is OK。But when added to two,it cannot work.
I think,whether channel of two devices...
