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...
Hi all,
I'm using the pca10031 which contains the nRF51422 chip; as a packet sniffer to sniff the communication between my S5 samsung and my pca10028, but I struggle while...
Hi, I'm trying to use the example bootloader with the new NRF52, everything seems to work fine except that I'm unable to bond to the device when the bootloader is installed...
I sniffer the packets when I use a phone to connect to a BLE device.
However, in the packet with CONNECT_REQ label, the source address (init address) is not the bluetooth...
Hi.
I'm trying to communicate with legacy nRF24L01P using nrf51822.
I received packet from nrf24l01p, but I can't send information back.
The data I should send is more...
I use the persistent storage manager for saving some calibration parameters. It seems to work ok - I can power off/on, and the values are still there.
However, after I...
Hi. I would like to get into bare metal programming, and have decided to go for ARM processors. Are there any ns-kits or courses availible for purchase?
thnx in advance...
I have a few questions regarding power-fail comparator (POF).
How much current POF consumes? About the same as low power comparator (0.5uA) or lower?
How will softdevice...
Hi,
my firmware works fine, but when I tried to do DFU using the master control apk, it would get to the download screen and then quit.
This is the text:
DFU version...
I wonder if I can ask about the leds intensity control:
I need to control the led intensity without the PWM because I'm using the softdevice & PWM didn't work with it,...
Dear All,
I'm trying to set a static passkey. I have created 2 custom characterestic. One characterestic is used for notifications and the other one for writing. For communication...
I'm making a peripheral device that should be powered off most of the time, but never idle if on, so I want to make sure that it is always (1) connected, or (2) advertising...
Now I have a project to build the schematic.
a, 5 LED indicators(0603) were driven individually by GPIO port directly, serial with resistor, then pull down to GND.
Is...
I installed nRFgo Studio Version 1.20.0.2 (which removed my older version) and was trying to program a softdevice (5.2.1) into our custom board and was presented with a popup...
Hello, I just received the nRF8002 development Kit and want to connect it to my windows 8.1 64bit machine. I get errors that there is no driver. Tried downloading the latest...
