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...
nrf24le1 memory map shows that there are two sram block size of 512byte ,the first one is data retentive (address 0-0x0200) ,another one is data non retentive (address 0x0200...
My device use the firmware program ble_app_uart to connect the nexus 7 which Installs the nRF UART 2.0 for Android 4.3 。The first connection is ok，and Data sent and received...
Hello,
I am a beginner in the world of bluetooth and bluetooth smart connections. I am working with an nrf51822 Evaluation kit an android phone (Nexus 4 running 4.4.2)...
Is it normal that after cutting SB8 our chip is still working when connected to USB port? (in case of battery we need to connect pin 1 and 2 from P1). I spend long time looking...
I have a custom board that uses the nrf51822. I have been using the sample application ble_app_uart with only one minor change, I use the internal clock (NRF_CLOCK_LFCLKSRC_RC_250_PPM_4000MS_CALIBRATION...
I'm wondering when my firmware changes over time what will happen with information stored with pstorage? For example if I my new firmware release adds an additional pstorage_register...
If I have persistent data that will be updated semi-frequently, will pstorage wear out the flash memory? What steps should I take to be sure my data storage will remain functional...
Hello,
I tested nRF51822 with ble_app_hids_keyboard example, i found it cannot pair with more than one devices.
Procedures:
Pair PCA10001 with iPhone#1, it can...
Hello.
I have a nrf51822 ek and trying to create my software using same technics as the bootloader example from sdk. But sdk's bootloader in my case doesn't work. I programm...
hello all:
I have compile successfully my project.but have link trouble about my project codes for the nRF51822 with the Keil MDK-ARM toolchain (v4.6).
For example, for...
When I try to read attribute with authorization and reply on request with status BLE_GATT_STATUS_ATTERR_INVALID_HANDLE, my device (nRF51822) goto app_error_handler method...
After importing every of your android project demos to eclipse I have following warnings:
This Handler class should be static or leaks might occur (com.nordicsemi.nrfUARTv2...
This must be stupid question of the day. I have my nRF51822 kit and my nrfGO kit and I can't find the product key. On the box for the nRF51822 there's one tiny sticker with...
