Hello,
I'm using the nrf51422 with 210 softdevice.
I'm trying to figure out a way for the receiving slave device to go to sleep when away from the master, but to wake...
To be able to upgrade FW through UART, a bootloader for nrf51822 is required in my project. I have tried out the example bootloader in SDK. But this example is using softdevice...
I followed the forum posts and nan-29 to get eclipse 4.3.2 to successfully connect to JLinkGDBServer via a Segger J-Link EDU on Ubuntu Linux.
I can start the GDB server...
I'm using Softedevice 6.0.0 and SDK 5.2. and Keil 4.7.
I Modified bootloader project so it compiles with both ble and hci transports. Currently I use button_0 and button_1...
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,
When I call sd_ble_gatts_sys_attr_set and p_sys_attr_data points to data in flash I get a NRF_ERROR_INVALID_DATA. When I point to the same data in RAM I don't get an...
I am using NRF_TIMER1 with 16-bit mode and prescaler of 0 as a counter, to count the pulses of an incoming square wave signal in a given time window. What is the upper limit...
Hi Nordic,
Can you please shed some light on the size of NFC stack on nRF52?
Also, what NFC operation modes (Reader/Writer, Peer-to-Peer, Card Emulation) can be supported...
I'm pretty new to embedded systems development, but I've started to find my way around. I am trying to strip the SDK example programs down to minimal examples, in order to...
Hi!
I am trying to implement oob pairing, but I don't know how to do it.
I' ve got 2 nrf devices. Central and peripheral.
Central receives oob data, which it stores in...
Hello, I am using spi_master example to get a sensor output from ADXL345. Currently, it seems my code can read output data, but there is error showing for settings mismatch...
Hello!
I successfully followed nAN-36 and loaded the code into a NRF51 DK (PCA10028).
The next step I intend to take is to prepare a custom central service that matches...
Why sd_ble_gattc_hv_confirm returns NRF_ERROR_BUSY ?
I want to send a confirmation after I receive a indication from server(s110 ) ,when I receive data ,
in on_evt_hvx(...
I am trying to figure how to pin my nrf51822 on a PCB. I need the chip to sample and convert an analog voltage signal coming from a photodiode heartbeat detection circuit...
Hello
I want to setting up DFU in my project. I followed this document :
link text
I'm using IAR EWARM and nRF51_SDK_8.0.0 and "nRF51_SDK_8.0.0\examples\dfu\bootloader...
Dear all,
I have written some code that controls the SPIS and allows it to transfer data as if it were a master. I am generating the SPIS clock from one timer, and I am...
Hi everyone
for my application I must use the Bluegiga dongle like central (PC side) and nRF51822 for peripheral (hardware side).
So I implemented cable replacement app...
I feel stupid asking this question, it should be documented in the standard and the code but I have looked and googled with no luck.
I want to populate the ble_rscs_meas_t...
What are the considerations when choosing between using an external 32.768 kHz oscillator and just using the internal RC oscillator as the low frequency clock source?
Here...
