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 having a problem at the moment with code based on Espruino on nrf52.
I connect as follows:
ble_gap_scan_params_t m_scan_param;
memset(&m_scan_param, 0,...
I've seen a few post that have similar issues but none that solve my problem.
I have two uarts (uarte0 and uarte1).
I disable them before going to sleep.
I wake with...
Hello,
I cannot successfully flash an nRF9160-Dk to a usable AT modem state using a brand new install of nRFConnect on Windows10, following this Blog post guidance - https...
I am working on 802.15.4 using nrf52840 and sdk 15.2. I want the receiver node to scan the network for beacons transmitted by the transmitter node for 100ms, go to sleep for...
So its seems nrf9160 docs recommend having VDD_GPIO only at 1.8v ... that running at 3.0v (or 3.3v) will compromise LTE performace.
I have 3.3v rail and 3.3v SPI device...
Hi Folks,
I'm trying to use the Power Profiler Kit. Unfortunately I keep getting 'Failed to start the PPK'. I've updated the drivers (and can program the nrf52832 DK with...
In the nRF52840 Product Specification v1.1 ( HTML ) , description of the QDEC peripheral, Table 77 on page 275 ( direct content link) , it appears to indicate that the LED...
Hi,
We have an freertos based app (SDK14.2).
Recently we have added a WDT support in the following manner:
The init code initializes the WDT reload value to T+3...
hi all, i am using the uart with it's dma to transfer data into the nrf9160, but some of the data is lost in it's way. here are some examples of the loss count in bytes from...
Hello,
I'm using several nRF52840 boards to setup a bluetooth mesh network. Im using the python script "interactive_pyaci.py" to setup the mesh. The mesh is working and...
Hi, As the title asks, I am using the lte_ble_gateway example project on the nRF9160 DK. I am able to connect one nRF52840 DK to the nRF9160 DK over BLE. I am trying to connect...
We have a board that has become unresponsive to programming. It worked well to program about 4 times and then is no longer responding to the J-Link device. The application...
Hi,
I tried implementing serial communication between nrf52832 and HT1632.It didnt work.In HT1632 data sheet it has given following specifications
will nrf52832 supports...
