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...
Hello,
I am trying to merge the code of ble_app_buttonless_dfu with the code of ble_app_uart,
because I starts all implementation with the code of ble_app_uart at first...
Hello,
I am using SDK9.0 and testing the LED_Blinky project with IAR tool, Evaluation kit. The application is executing and leds are blinking but I am not able to set a...
Hi, and thanks ahead for the help. I am working on receiving ble packets without using the soft device. I am able to transmit an advertisement with raw radio and pick it up...
Hi,
I am trying to write and update a record in flash but not receiving event callbacks FDS_EVT_WRITE and FDS_EVT_UPDATE. I found that i need to add the following code...
Hi there
Is there any PCA10040 simple demo IAR project? Just like print out "hello world" from any debugging uart? Base on this I can add in more functions gradually. ...
I am using clock signal from external RTC chip to clock NRF52832 at 32768 Hz through XL1 leaving XL2 floating. I have verified the waveform by the oscilloscope and set SRC...
2.4g ble work in 2 mode(not same time) when reset.
when I init 2.4g clock
void esb_clocks_start( void )
{
NRF_CLOCK->EVENTS_HFCLKSTARTED = 0;
NRF_CLOCK->TASKS_HFCLKSTART...
Hello everyone!
I have peripheral device with notify characteristic with 20 bytes length of value and connection time interval - 7.5 ms. So, I want to increase throughput...
Hi,
from the nRF52840's datasheet: Up to 4x SPI masters/3x SPI slaves with EasyDMA .
Is it possible to connect the nRF52840 as a slave with another microcontroller and simultaneously...
Hello,
do I need to do anything to accept new Connection Parameters as a Peripheral when the Central updates them?
I am seeing 'BLE_GAP_EVT_CONN_PARAM_UPDATE' events,...
Hi, guys.
I am meeting a terrible problem when using the SDK14.2 -> BLE\nRF5_SDK_14.2.0_17b948a1\examples\ble_central_and_peripheral
experimental\ble_app_hrs_rscs_relay...
HI,
I am using nrf52 with other mcu and sending scanned beacon to that mcu.
I have set baud rate to 921600 and transmitting data when mcu request.
when mcu request...
Hi,
We am using sdk 12.2.2 and nrf52. We are observing some strange behavior of chip. We have our own customized board.
The issue is mac address shown is different in...
Hi there,
I'm using a PCA10040 board, and the app that I am working on was originally built in SDK 11.0. I'm trying to send a stream of arbitrary bytes over USB using the...
