Hi, my friend,
I've been with nrf905. I use a 16-bit CRC check.
But I encountered problems in use:
1.Nrf905 16-bit CRC check format is CRC-16(IBM):X16+X15+X2+1 or other...
I have two custom PCBs, each of which has a microcontroller and an nrf24L01+. Everything related to the transceiver in the designs are complete duplicates (with the exception...
Hello,
I've built a small BLE-device based on the nrf8001.
With my Iphone I can discover this device and I am able to connect to it and listen to notifications of the...
Our pcb is used for gps location data. We have a nrf24L01 nordic chip as the micro process or between the gps module and wireless module (2G). Our engineer needs to capture...
Hey folks,
I'm trying to modify the SPI Master loop back example into a 4 line SPI Master_Slave program. Whenever I change the Tx_Buffer_lenght from 10 to lsome other numbers...
Hi.
I am using S130 softdevice version.
Basically, I am using NUS Service and make a my own NUS central service as NUS_C.
It is correctly work at normal state.
When...
Hi All,
Please Reviwe for a attached circuit file(Chip ANT of nRF51822.pdf).
I also attach a datasheet of chip antenna applied for that circuit(SDBTPTR3015 Data Sheet...
Hello, first of all: I do not expect support from nordic here, but if any kind sole could shed some light on this, I would be very grateful. I’m developing an open source...
Hi All,
I was tasked to create a program in visual studio that can just detect the 949-NRF51822-BEACON
Using the 949-NRF51-DONGLE. A simple application that detects the...
Hii all,
I wanted to generate a clock pulse from the pin P0.05, I've written the code and when I tested the application with nrf51 DK with chip 51422-AC its working fine...
Hey everyone,
I'm trying to send a value as a notification packet from GATT Server (slave) to GATT client (master) at 7.5 ms connection interval. I have set up the radio...
I am using a simple 4 by 4 matrixed keypad, and I would like to handle some of the decoding myself.
In essence, I would like to configure all 4 rows as low driven output...
Hello,
I already searched the forum, but I didn't find anything.
Is there a way to invert a port on a NRF51822?
I use this chip together with an XMega-Chip and they...
Hi,
I'm trying to get PCA10001 board working. I used ble_app_hrs example from SDK 6.1.0 (I'm using eclipse with gcc). The Softdevice is v7.1.0
The application seems...
I have a nRF51DK with SD 8.0 flashed.
I would like to start and stop a pwm signal with the buttons on the board(BUTTON_1 and BUTTON_2). The pwm is working fine. But when...
Hello:
I want develop my nrf51822 project base on new sdk and softdevice.In /nRF_Examples/9.0.0/ble_periphera/ble_app_uart/, the keil project device is nrf51422,and it can...
Hi,
I'm compiling the simple blinky example with no softdevice for an NRF51822 xxAA using GCC on linux. I can't get any LEDS to blink off the GPIOs, so I'm debugging with...
I can see a phrase "Not recommended " on the Evaluation Kit's page: www.nordicsemi.com/.../nRF51822-Evaluation-Kit
What could that mean for me if I already have the kit...
I found in ble_app_uart example, any device with UART app can connect to uart service and send something to COM port or just block the connection of other devices.
So can...
I'm trying to update my firmware using the dfu, I tested two examples of the SDK :
one of them is dfu_dual_bank_ble project,
I noticed that the memory allocation...
Hello,
I have been reading a lot of Nordic and DevZone stuff. The information I need appears to (almost) be there but I cannot quite put it all together. I need some help...
Hello, I am asking for your help again.
I just managed to brick the chip that I am working with. The problem is that I am not able to erase or program the flash. However...
