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 wish to design a Laird BL652 Bluetooth with an NFC port. Unfortunately I have not been able to discover the coil inductance. They use a Nordic nRF52832 chipset.
My hope...
Hello.
I have some questions. Is it possible stabile work of android device , that has bluetooth 4.0 , with nordic device on base softdevice s132 v 5.0 ? What should i...
We're thinking of using the 52840 to capture and stream 4 vital signs per patient to a nurse's monitoring station. BLE/MESH would both work. Is there an off-the-shelf, desktop...
Hi all,
I am currently building an app that does HTTP requests to Strava ( strava.github.io/.../).
Before going deeper into the SDK, I would like to know if it will...
I have few questions that weren't addressed either in the infocenter or in the devzone:
In which way app_timer uses CC registers? Each running timer use one of these...
I want to transfer the code from nrf51822 dk board to a beacon kit, after connecting the beacon kit to the dk board, then I change PCA10026 to PCA20006 on the C/C++ define...
i was trying to send acceleromter values of mpu9250 to pwm pins. for this i have merge to different examples i.e. nRF-mpu-simple and pwm library example. but it showing error...
Hi,
I'm a beginner of BLE and I did everything from the three BLE tutorials, that uses sdk 11. However when I try to do it in sdk 12.3 it doesn't work, because there are...
Hello,
I am using ble_app_uart code. My first goal is to execute a function when board connects with an android device. Another goal is to disconnect board from an android...
When reading about access_opcode_t struct on its infocenter page it stumbled upon this table i don't understand.
access_opcode_t is defined as:
Data Fields
-------...
I'm employing 51822AA.
I need to debug firmware for this chip line by line. Like environment of ARM9 with Lauterbach TRACE32 through JTAG.
Is line debugging possible...
From application point of view, when should I use UICR and when should I use Flash storage? I have studied the documentation and the functionality seems very similar. The...
Hi everyone,
I trying to make a flash jump on Nrf51822 in my project. there are 2 programs(program A and program B) below. i am working on to make program A jump to program...
Hi everyone,
I'm new with nrf52832, and I need to measure elapsed time in microsecond between rising edges of 12 different Gpios. I have 12 piezoelectric sensors filtered...
