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...
I'm using the nRF51822 with the version v5.2.1 S110 soft device and have implemented a communication scheme that is very nearly identical to the Nordic UART protocol as implemented...
Hi,
I'm currently working on an Android 4.3 app who must communicate with a model of a specific device.
This device contains a Bluetooth low energy chip nrf8001 and there...
Hi,
I have a problem when running 51822 with Nrf toolbox on android 4.3 Samsung S4. The problem is that the BluetoothGattServer disconnect itself after 30 seconds. The...
Hello all currently i am setting a Client Characteristic Configuration value to indicate to retrive value from device. but in some device refuce to give value . so first i...
I'm using the nRF51822 with the S110 soft device. When specifying the maximum size of a variable length characteristic notify property (the max_len field of the ble_gatts_attr_t...
now,I want to know how the process that application invoke the method to send or recieve the data,but I did't find it in the source code ,and when I want to find the definition...
I want to read a line of text from a UART peripheral. I'm using app_uart.c, not the "simple UART" example code.
My main() looks something like this:
uint8_t line[MAX_CHARS...
Hello,
I've been working on the SPI module for the nRF51822. I used the sample spi .c file as a starting point, but I got rid of the timeout (not sure why there is a timeout...
Hi,
We have nrf51822 evaluation kit and some custom board with nrf51822 chipset(works fine). And also we have tested the nrftoolbox application with the proximity service...
I use the example "Keil\ARM\Device\Nordic\nrf51822\Board\pca10001\led_radio_example" and "Keil\ARM\Device\Nordic\nrf51822\Board\pca10000\led_radio_example" to communicates...
Hello, I think there's a mistake in page 35 of the specification, it says that if Auto Retransmit is disabled (that meaning Auto Retransmit Count = 0 in SETUP_RETR register...
Hi all,
I am using an nRF51822 Development Kit and I would like to create a simple test code that allows me to send data (no matter what kind of data, also a sequence of...
Hello, I am working with both QFABA0 devices as well as a QFAAC0. Because of the outdated silicon I am constrained to SDK V4.x and SD V5.x
My current test setup is
I...
Hello,
which profiles are available currently to the S120 protocol stack? In the nRF518 SDK V5.1.0 I could find only one example profile for Heart Rate. However, this is...
