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 all,
i want to know answer related to following question
1)what is use of uicr?
2)if i place some value in uicr and then change the image,then is there will be change...
Hi.
I have a custom board based on the nRF51822. Application uses s130, SDK 11.0.0. It's a peripheral. Using gcc.
I'm finding that when field testing my device, it will...
Hello,
I'm trying to measure the time difference between two pulses using GPIOTE, PPI and a Timer.
My platform is:
nRF52832
SoftDevice S132 v2.0
My thinking is to...
without timer it work fine but when i use timer it goes here.
my timer code is this
#define APP_TIMER_PRESCALER 0 /**< Value of the RTC1 PRESCALER register. */
#define...
Hi,
I am following the user guide nRF51822 Evaluation Kit User Guide v1.2 , the heart rate monitor demo, Scaning for available Bluetooth low energy devices:
I started the...
Hi,
i am working on a custom board with nRF51422. I can program this board with the nRF51-DK. I use ADC and a temperature sensor via I2C. Everything work well but actually...
I am using nrf_toolbox on Windows Phone 8.1 and PCA10040 development board. I loaded the uart example and with my phone I can send text via nrf_toolbox. But when I want to...
Im' trying to send a set of 80 bytes using indication. for that I have a characteristic sending each time 20 bytes and wait for indication acknowledgement before sending the...
Hello Nordic! My application requires an nRF51822 using S110 to handle both Notifications and Indications over the same characteristic.
The CCCD value 0x01 = 0b01 enables...
Hi,
In order to start my own board with nRF52 component throught SWD, I think I've to use Segger Jlink. I expect to buy the basic version, that sound good for me, but I...
Hi,
I have some problems with bootloader debugging by using app_trace_log().
My board is pca10028, and I use the SDK 10.0.0 for it. The Keil version is v5.20 and Jlink...
Hello All,
How to interface nRF905 with nRF51DK board?
Any driver is available for nRF905 which support nRF51.
Any help will be appreciated.
Regards,
Rajneesh
Hi,
I'm using PCA10028 to communicate with ADS1131 ( www.ti.com/.../ADS1131) which outputs 18bit on SPI bus. I managed to get the data out by reading 24bits, but it feels...
Hello ! When I make a read with the SPI from a sensor's register the data sometimes comes correct and most of the time wrong. I tested the read operation with an Arduino and...
Hi
what is the best way to implement a sleep after disconnect?
We are using a custom board and I implemented it this way:
on connect : turn advertisement off
on disconnect...
I used iar for my project. But for some reason I have to transfer my project to keil now. Attached is the icf file from iar and I also attached my keil settings. Now the system...
