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...
Hi all,
i want to know answer related to following question
1)what is use of uicr?
2)if i place some value in uicr and then change the image,then is there will be change...
It used to work, but now it says "Connected" but the rest of the GUI never changes and the mouse just shows a busy spinner. Here's the log file:
0;13:45:18.9900 [MainThread...
I have a PCA 10028.
This board uses Two microcomputers.
One is N51422.
Another is microcomputer on which the seal is put(Segger ID:).
What is the role of this microcomputer...
I recently discovered this article ( mbientlab.com/.../) and am trying to understand the data transfer type between the firmware ( ble_app_hrs_s110_pca10028 ) and an iOS device...
Hi,
Currently when I run the HRM demo I end up in the app error handler, unfortunately the error codes don't print to my terminal window. I'm using crossworks, and I was...
Hi,
I am new to using keil uvision. I am creating wearable solution, have enabled battery service indication, RTX support,bsp support, gpio,ble service.
When compiling...
Hello!
I would like to measure RSSI for different channels so as to decide which channel is the least noisy one (and more particularly, which ones are already used). I...
I am trying to choose a BLE device for my upcoming biomedical product design. Any help in comparing these 2 devices will be greatly appreciated.
Things I am concerned about...
Hi,
I am using the nRF51822 with an external chip. The nRF51822 has interrupts which trigger when one of the signals from the external chip goes low. When using BLE and...
My program does a lot of dynamic memory allocation and at some point "malloc" retruns NULL , which is cause the system running out of allocated heap memory (I am assuming...
Hi,
i am newbie to nrf51822 and want to know details of following stuffs:
1)what is use of uicr?
2)if i place some value in uicr and then change the image,then is there...
Hi guys,
i asked a similar question [1] few days ago, but yesterday i stumbled over the "service_data" type when advertising packages.
I've written a custom service...
Is there a specific part code for the latest Rev 3 QFAC silicon for the nRF51822? We were trying to track down a source with stock of the latest chips, but most resellers...
I'm having trouble using the RTC1 COMPARE function to generate an event/interrupt when the processor has been put to sleep using sd_app_evt_wait().
My configuration is...
Is it possible to use the nRF51 dongle as a slave ?
I have a nRF51422 Eval board that I am planning to use as a central device. Can I use the nRF51 as a slave so that I...
Hello we have developed a few products which have required (costly) RF/RFPHY testing.
Is there a reference design that is qualified that can be used to avoid the RF/RFPHY...
Suppose a BLE central needs to get sensor data from 10 peripheral sensors. Given that there is a limit to the number of connections a BLE central can have, is it better for...
