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 try to communicate with others TWi devices using the twi_hw_master driver.
When i initiate a communication with twi_master_transfer , i don't receive any ack from...
Hi,
I have purchased the nRF8001 Development Kit and so far I wired the nRF2740 board to a FTDI VNC2 microcontroller. I have been reading about how to configure the 8001...
Hello. I'm trying to port the ble_hrs to a custom board with an NRF51822 on it, but the advertising never starts. While I'm debugging this, what should I be looking out for...
Is there an example for sleeping? I just want to put this thing to sleep drawing minimum current and have it wake up on a RTC timeout, but do not seem to be able to achieve...
As indicated in the PS, System On Mode idle draws only 2.6 uA.
Does this mean that if I install and active a timer interrupt, where the interrupt routine places the system...
Hi,
I am new to ARM development. We are thinking of ordering mkit for evaluating and developing a custom BLE service(profile) which sends data to BLE client (probably a...
Hello Everybody!
I have been working with BLE security and I have an issue with OOB setup.
I'm setting my nRF with the following:
m_sec_params.timeout = 30;
m_sec_params...
I was reading this press release:
http://www.nordicsemi.com/News/News-releases/Product-Related-News/Single-board-Bluetooth-Smart-Arduino-solution-is-low-cost-and-can-be...
Yo!
I'm very concerned by what I hear about Bluetooth Low Energy security. According to this guy , who presented a paper on the subject at a USENIX conference last year...
Any experiences about analog sensor LM35DZ? I used this example: main.c
The LM35 data sheet says it will operate from +4V to 30 V supply. I'm use supply only Vcc pretty...
Hi all,
this is not a question per se but rather a warning to those who are attempting to debug Flash related operations with the SEGGER J-Link GDB Server (v4.84a for Linux...
I'm using API 2.1.3 and I'm having problems with SendData blocking forever at the end of a process. I placed access mutexes around each method call to the library, as well...
Dear Nordic Developer Zone,
I have modified the ble_conn_params.c file in order to be able to negotiate new connections speeds between IOS app and Nordic nRF51822 chip...
