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 have use random number generator in S110, the source code just like:
uint8_t num_rand_bytes_available;
err_code = sd_rand_application_bytes_available_get(&num_rand_bytes_available...
what does it mean the VTG led turn red ? but it has no bad effect to my project. In addition, I find a strange phenomenon. I use three 1.5v battery to power my board. The...
I ran the ble_aci_Tranport_layer_Verification.ino sketch from the Nordic BLE library and I get no output to the serial monitor after "nRF8001 Reset Done" is displayed. I think...
Hi nordics!
First of all, thanks for answering my questions before.
Now, I want to generate a clock(48 pulses) with 200us width.
However, sometimes the width of...
Hi ,
I have a application program which uses s110 and UART service .
The issue is the program is not working when I enable the Micro Lib in keil.
On observing the map file...
Hello,
I want to use flash for logging sensor data and sending via BLE.
I found several APIs for store data to flash.
pstorage (Persistent Storage Access Routines...
Hi all,
I would like to know how can I program and debug the nRF51822 development boards?
I've seen some boards have a built-in programmer and others haven't.
How can...
In the DFU code provided by nordic is explicitly states that.
"Soft reset from application must not reinitialize the SoftDevice."
In my application I do not have a button...
Hello,
I have made simple modifications to the multilink central and peripheral examples, adding an additional button and notification characteristic. Things have been...
We're designing a board with the nrf51822 QFA part. Due to design constraints, the chip will have to be about 15mm from where the antenna port will be. The routing to the...
Hello!
I am an electronics engineer in my company, but I'm not familiar with wireless design.
My company will launch a project that will use wireless connection for bidirectional...
hii i use nrf51822 dev kit, and want to know the status of that is that right now advertising, pairing, connect etc. so is their any function that i use to check the status...
Hi,
I'm planning to use an external MCU to process my digital signals and send it through nRF51822. Do I need to develop an on-board antenna? TI has the module CC2541 from...
Hi,
Recently S120 v2.0.0(either Peripheral or Central) is officially released, but it seems not still listed on BT-SIG Qualification.
I can see that Sx20 host layer QDID...
