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...
My system's data rate is 16MHz.it input to nRF52832 is parallel 8 bits. Is it possible? I want input the data to RAM by easyDMA,please to tell me how to do it ? thanks!
Hello,
A stupid newbie question: APP_UART_FIFO_INIT seems to get stuck while trying to run
example code.
Only modification I have made is the usage of SEGGER_RTT for...
I am working in sdk14 nrf52832 ble_app_hids_keyboard_pca10040_s132.
I set the .allow_repairing flag to true :
static void pm_evt_handler(pm_evt_t
const * p_evt) {...
My system's extend IC need a 16MHz clock ,because the nRF52832 work in 64MHz,so I want to use nRF52832 to generating a 16MHz clock output to a GPIO pin .please tell me ,how...
Hi,
I'm using nRF52832 and nRF52840 to work with MCU, then we should do the firmware update by the uart. I have compiled the bootloader_secure_serial project in the SDK...
I have ordered two "nRF51822 Bluetooth Smart Beacon Kit"s on this page:
www.nordicsemi.com/.../nRF51822-Bluetooth-Smart-Beacon-Kit , and got these two:
I've downloaded...
Am building a HID Mouse device, starting with the nRF52-DK as hardware target and the BLE peripheral HID mouse sample app. Builds, loads and runs, apparently fine (i.e., can...
Hello,
I am trying to add an extra service like "experimental_ble_app_blinky" into "ble_app_hids_keyboard" example code. "ble_app_hids_keyboard" example code has 3 servcies...
Hello,
I'm new to the Nordic SDK and I would like to ask you for help with implementation of PORT events for revision < 3 in "low power" mode instead of "high power" mode...
i am using uart of nrf52832. the SDK is nRF5_SDK_12.3.0_d7731ad. the uart is app_uart .when i was testing the uart sending and receing .i find that the uart is stoping where...
Hello!
We are performing certification testing for our product. We have nRF52832 chip on the board. We used "radio test" example to perform the test and almost all worked...
I'm migrating from sdk13 to sdk14 with work app.
Can't solve one weird problem. When my app start first time I initialize some data with saving by fds library to flash. There...
Hi
I get the following error when i compiled the ssd1306 library from link text to my nrf51DK..
error is: ._build\nrf51422_xxac.axf: Error: L6200E: Symbol app_error_handler...
In the nRF52 datasheets there is a statement:
"The 64 MHz crystal oscillator (HFXO) is controlled by a 32 MHz external crystal"
Is the crystal somehow oscillating at 2nd...
