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 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...
Hello,
I want to add NUS service on the SDK_14.1.0_1 example called "ble_app_hrs_rscs_relay".
I added
uint32_t nus_err_code;
ble_nus_init_t nus_init;
memset(&nus_init...
Here: devzone.nordicsemi.com/.../group__ble__api.html
Choose to simply not keep track of available buffers at all, and instead handle the BLE_ERROR_NO_TX_BUFFERS error...
We plan on using 4 to 5 timers on our project. Each timer has different timer intervals (Example 1 minute, 50 ms, 300 ms etc)
We are trying to use 2 Timer instances and...
Hello,
I am working on example
nRF5_SDK_14.2.0_17b948a\nRF5_SDK_14.2.0_17b948a\examples\ble_central\ble_app_uart_c
pca10040\s132\arm5_no_packs/ble_app_uart_c_pca10040_s132...
Hello, I would like to know if there is any way to avoid bootloader start in secureDFU firmware transfer. All the checks on init file and control point are on the application...
My DFU is staying in the bootloader, even after successful download of the application package.
I have modified the secure bootloader for my custom PCB (removed the GPIO...
Hi,
I'm trying to get OpenOCD flashing to work on Windows using the FTDI 2232H adapter and an NRF52 target. I found this site:
https://www.allaboutcircuits.com/technical...
Hello,
I am trying to read multiple registers from a slave of i2c.
The values that I capture are the first value repeated in all the buffer.
The number of readed reg...
Hi,
I would like to use ping pong mechanism to prevent faulty application update on nRF52840. Is there a way to build a single image to run at 2 different addresses? How...
I have OSX Sierra, VMWare Fusion and Windows 7 available.
I do Arduino (Teensy) dev, staying on the OSX side.
I want to use the nrf52 chip as a MIDI over BLE conduit ...
Hello,
I have a PCB with a NRF52 powered by batteries. We need to be able to plug the batteries, then program the device and never remove the batteries.
We noticed, that...
I have a need for an interrupt to go off at a 4khz rate. For this, I am using a repeated App Timer (running off the 32k crystal).
Prior to adding this extra timer, we used...
