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...
Hello everyone, I must to write and read a I2C eeprom like 24c256. I tryed to do it but all the examples with I2C protocol works with 8bit addressing. I tryed to modify mpu6050...
Does the components on the development kit increase the power consumption compared to what you would expect from a low power-optimized application-specific PCB?
Other than...
I use the ble uart app to receive the data from mobile phone. The data packet size is 20 byte. If I transmit the packet one by one without adding delay, is it possible that...
HI,
Can anybody give me the connections to a BMD-300 with nRF52DK and the steps to program a BMD-300 from scratch? Which document provides the information, if there is any...
For ble_app_uart, if I write below routine to send data to mobile phone application. Can the mobile phone application receive all the packets without packet lose.
for(i...
my questions is in relation to BLE and the ability to sense RF at different distances using either dBi or RSSI(rather not use this), is there an accessable dBi signal strength...
I want make OpenMesh stack running as a task with freertos(8.2.1).
first,I got two LEDs tasks running on nrf51822 very well,That's the base.
Then I set mesh stack as...
Hi,
I am using relay example code to test, the example code is under below folder: C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_Examples\11.0.0-2.alpha\ble_central_and_peripheral...
I am using the nRF5_SDK_11.0.0.
I want to state of the system off sleep after entering system on sleep.
For example, from the state of system on sleep, it becomes system...
Trying to compile the HRS example using SDK12 using Eclipse. Getting a lot of undefined reference errors under the peer_manager folder for pdb_ and pm_functions such as these...
We are having a slight issue when we are trying to update the DFU. The original version had this setting for the data reserve:
#ifndef DFU_APP_DATA_RESERVED
#define DFU_APP_DATA_RESERVED...
