My sensor is off-standard,so I have to use gpio to read and write my sensor.
Gpio IIC will take about 0.5ms to get data.
My app need send data every 7.5ms,it seems that...
Hi,
My android Proximity application fails on service discovery only for the very first time it connects with the devices(nrf51822 evaluation kit with sdk 5.2.0). Actually...
Has anyone converted the app note AN34 DTM Python script to C# or C/C++ ?
The Python DTM script is works OK with the setup specified in the app note AN34 figure 2, which...
Hi,
I have a serious problem, when I use uart of NRF51822 QFAAC0 to receive data from another MCU, I found that it will lost one bit at same position everytime. my SDK is...
Hi,
I just started to interface the lcd display with nrf51822 evaluation board. The display i'm using is, spi compatible, 18" tft (160x130) from tiny lcd. I took spi master...
Hi,
We are using the nRF905 device in an application where it needs to switch between auto-retransmitting and sending single packets, due to it communicating with several...
Hello,
I am writing an application in Qt that runs on the computer and interacts with a nRF51422 via BLE. Now I have noticed, that I have to tell the framework, which address...
How do I reset nRF51822 to shut down the debug port?
I have a custom board with a built-in battery and strong power management.
If I power up the board without the debugger...
Hi All,
My goal is to advertise the generic packets untill a GPIO interrupt occurs. So in order to achieve low power consumption I have increased the time interval of those...
bootloader.rar (/attachment/d5fd4fbbc7d37433740f6c9468f3110b)
bootloader_dfu.rar
Hi,all.i want to set same macaddress with my app in bootloader,and advertise it in bootloader...
I have a pstorage Clear and Store that I use just before calling bootloader_app_start() in my DFU bootloader code. Everything was working great testing/compiling (GCC) under...
Hi,
we'd like to use nexus 7 II(android 5.1.1) to connect nrf51822, but cannot connect if nrf51822 uses whitelist.
step 1. we send advertising packets without using whitelist...
I'm trying to build our application using GNU Toolchain and currently facing compilation issue with __asm directive; the error thrown is:
../../NRF51_SDK_v6_1/nrf51822...
I usually see a system event "NRF_EVT_FLASH_OPERATION_ERROR" when updating my device firmware. SDK says that this event indicates that the ongoing flash operation has timed...
Hi, have anyone tested nrf51822 beacon smart kit on samsung tab 4? For some reasons it didn't detect the beacon. I have tested with company identifier of nordic, samsung and...
Since the IoT SDK is not support the IPSP Router role.
Is that mean the nRF51822 can't been used by other MCU which is running Contiki to become a Edge Router?
There are many links across the Internet to app note nAN-29 ( nRF51 Development with GCC and Eclipse ). In fact, I remember seeing a link to it on the Nordic website just...
Hi,
I am trying to test a UART bootloader with the hci_dfu_send_hex.py from SDK6.1.0
Unfortunately the script seems to crash, below is the output on the windows command...
Let's say I Have an nrf51822 on a small button cell battery having a sensor that is triggered on certain conditions.
What is the most efficient and power saving way to...
Hello. I'm using 24 MHz crystal to feed my MCU and not able to change it to 16 MHz to share with nrf24. Now I'm driving nrf24 XC1 with PWM signal 16 MHz and it works but not...
Hi,
We have NRF51822 chips programmed for specific application and it is working fine as BLE services etc.
In some scenarios, to debug we want to stream data from our...
