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, I'm facing an extremely strange problem with a product I'm developing.
I've been getting significant idle current measurements (around 7 mA), and I couldn't for the...
I recently attempted to upload a new image via OTA.
After emailing the zip file to my iPhone as an attachment and tapping on it,
then tapping on the share icon several choices...
Hello,
I need a voltage regulator to power a microphone at 1.3V from a 3V coin cell battery and I was looking for a regulator like the lm317 , but with this one the minimum...
IAR EW 8.11.1 does not link the nfc samples from sdk 13.1. There are different sizes for wchar_t:
Error[Lt009]: Inconsistent wchar_t size
nfc_t2t_lib.o(nfc_t2t_lib_iar...
Q1 I compile sdk13.0.0 generate nrf52840_xxaa.hex(app), nrf52840_xxaa_s140.hex(bootloader).
I used merge tool make a hex file, then burn the file into PCA10056 DK by nrfjprog...
Hi Nordic and fellow developers,
I have been working on upgrading the nRF51822 QFAA s110 and upgrading the softdevice to work as s130 for its (simultaneous Central/Peripheral...
HI,
the solution I'm working on requires quite a few IO pins, so once I ran out of regular GPIO pins I had to resort to using NFC ones.
I changed the UICR registers...
I am using the Dynastream D52DK1 ANT starter kit -based on Nordic Semiconductor’s nRF52832. According to the documentation given by Dynastream,
Open the desired project...
Hej, I stumbled upon a linker error saying
Output/serial_pca10040 nrf52832_xxaa/Obj/hardfault_handler_gcc.o: In function `HardFault_Handler_Continue':
hardfault_handler_gcc...
Hi, I really hate to ask this question but so far I have only managed to find 2 similar questions with 0 about nrf52840.
I'm using nrf52840 S140 5.0 alpha3.
When calling...
Hello
I have a problem...
'python_packages.bat' file can not be installed...
error message:
'python' is not an internal or external command, executable program,...
I have the nRF51-DK working on two separate computers with Keil v5.13 and the latest SDK. However, on my main computer I am having trouble with Keil and nRF51-DK. When I try...
