To be able to upgrade FW through UART, a bootloader for nrf51822 is required in my project. I have tried out the example bootloader in SDK. But this example is using softdevice...
I followed the forum posts and nan-29 to get eclipse 4.3.2 to successfully connect to JLinkGDBServer via a Segger J-Link EDU on Ubuntu Linux.
I can start the GDB server...
I'm using Softedevice 6.0.0 and SDK 5.2. and Keil 4.7.
I Modified bootloader project so it compiles with both ble and hci transports. Currently I use button_0 and button_1...
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,
I am working with nRF51 for my application. I do not use softdevices. I need to have a random variable in my code. I have read Reference Manual and I have found that...
Does nRF51822 have battery monitor?
pg 45 of datasheet says specifies "Absolute error when used for battery measurement" at:
Internal reference, input from VDD/3...
In the nrf52 OPS datasheet, for NVM and flash programming electrical specification (page 41) it has "Amount of writes in a block between erase" and Minimum for that is 181...
Hi all.
I need some suggestion how to use UART module in the nRF52 using nRF5_SDK_12.2.0 and the softdevice $132(it would affect?)
I would like use RX to receive information...
Hi.
Didn't find an exact answer for my question.
I'm using the ble_app_beacon example on my custom board based on nrf51822. While powering it from a coin battery, I measure...
Greetings. This is a followup to my previous question BLE Software Configuration for FCC Spurious Emissions . I did not ask the right question there and I did not want to...
Help!! I need to implement a dc motor position control and i have problem reading the encoder (too fast). I have seen that nrf51822 has a qdec peripheral. Any suggestions...
Hi,
I wanted to know if the UART pins can cause any issues if kept connected to usb (Rx/Tx pins stable to 3.3V) and directly to the GPIOs of the nRF52, while performing...
I've come across the following situation:
We have a device (nrf52) which uses fast advertising with whitelist after it has established a bond with a single phone. When...
Dear All,
I'm kinda getting desprate and would be very thankfull if somebody could help me.
I want to get two NRF24l01+ to communicate with each other. But it doesn...
hi, all
I met a communication problem between nrf52832 and nrf24le1, I used nrf52832 as receiver and nrf24le1 as transmitter, but unfortunately，nrf52832 can not receive...
We have a sensor product that has been in the field using the nRF8001 in no security required, just works mode for over a year. Recently, we had a request from a volume user...
I am using the ble_app_uart on the nrf51dk.RX is always enabled.I want to enable TX when data is to be transmitted and then disable it again.
I am using
NRF_UART0->TASKS_STOPTX...
Is there a way on the command-line to read the debug port (DP) register or access port (AP) register for nRF52 via the the nrjfprog program?
I do not want to write my own...
