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...
Everything was fine until I updated to the latest SDK version 6.0.0 and the new nRFGo ap version 1.16.1. Now when I try and connect to my device I get J-LinkV4.52c Error ...
Hi all,
I am trying to send and receive generic data from the L2CAP layer. So, initially I am just trying to send data with sd_ble_l2cap_tx with S110. The code that I am...
We are considering moving from the nrf51822 wlcsp to the qfn48.
We would like to minimize the changes to our design. Can we, should we keep our wlcsp antenna design and...
Exactly what baluns are known to work with the nRF51822. I believe there is the STMicro balun and am uncertain about the status of the Johansen balun. Is there a list of preferred...
Hi,
We are using nRF51422 in our project and we observe a strange thing, that even there is no external pull up resistors, the I2C communication using the built-in TWI...
Hi,
I am trying to power off and/or disable a RR[0] with no success.
I am Powering OFF the watchdog in main and then successfully POWERing ON in wdt_init but then I...
Hi,
I am trying to create a star network with 12-16 slaves and one master.
The master would be a nrf51822 and the slaves nRF8001/2.
The slaves would not transmit...
Hi,
I'm using the UART_OVER_BTLE base example and I'm investigating what needs to be done to enable security.
Using the Following security configuration the device stops...
Can you tell me which antennaes i can connect with nRF 8001 to make it discoverable and transfer data. And i think pi network is solved depending on the antennae only. Can...
Hi,
Is it possible to extend the RAM memory by using internal flash memory?
Actually i need to collect 4KB of data from accelerometer and flash it to the EEPROM when there...
I'm working on a device which may spend months, or even years as deep as 1000 ft underwater...a harsh environment. Accordingly, the PCB will be completely encased in plastic...
Is it possible when using the S110 softdevice to limit the maximum number of packets per connection event? I would like to reduce the maximum amount of time the CPU spends...
