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...
Hello,
I am creating a PCB design for NRF2402AG but I'm not sure whether I should connect pad under the NRF to the ground or I should left them isolated. I could not found...
Hello
I get this error when I try to program the module:
Parsing hex file(s).
ERROR: Cannot find C:\Nordic Semiconductor\nRF51 SDK_v6.0.0.43681\Nordic\nrf51822\Board...
Please,
It seems that "Flow Control" signal is not available on nRF24AP2-USB.
EVENT_TRANSFER_TX_START event message appears only one time after the first data packets...
Hi dear friends from Nordic Semi,
I´m in great trouble trying to make these nRF24L01+ to work, one unit as a transmiter, and one unit as a receiver, it can be to send 3 bytes...
Hi,
I am using nRF51822 Evaluation Kit along with keil uvision4. Will using optimization in keil IDE make any problem in the normal working of BLE project? Will it affect...
Hello All,
We need to design a Remote Control based on NRF24LE1 working with mercury cell.
So they key factor is hardware & software optimisation for the lowest possible...
Is anyone aware of any of these on the market yet? I know of one, from Insight SIP, but am keen to hear about any others.
(This would save space on the PCB, simplify our...
Using twi_sw_master have discovered that the nrf51422 E00 draws 1.3mA in off mode.
When the twi device is removed from the bus, the nrf51422 draws under 5uA in off mode...
I want to merge soft device, application and boot loader in order to improve efficiency for factory. I searched relative topics in this forum and found something useful. At...
We have been unable to establish a link between a Garmin HR monitor over the air, we have established USB comms to a cell phone device. We took the transmission line directly...
i find one related question:
devzone.nordicsemi.com/.../
and this is refers to nrf8001,
so, i wonder if nRF51 could share both crystal with other MCU?
please help to...
Hello,
I am trying to test ble_app_uart example code and replicate similar behaviour.
I have disabled hwfc. But without hwfc, UART0_IRQHandler is not getting called...
Hi
I need to implement I2C slave side (up to 100kBit/s) on a nRF51822 chip. As far as i see the inegrated TWI peripherial only supportes the master side. Any ideas how...
I just received an nRF51822 eval/development board that has a sticker on it that says "PCA10004". I also just downloaded the latest SDK (nrf51_sdk_V6_1_0).
As far as I...
