25,465 questions

Hello,

I was having some trouble communicating with another slave device thru TWI, I was not receiving his ACKs. So I decided to try to turn off internal pull ups following instructions in this other thread.

It did not work ... (more)

Hi,

I am actually tring to migrate a project from Keil to Segger Embedded Studio (SES) and i have a problem with the build of my project when tring to build ecc.c.

The program works perfectly with keil and ... (more)

I download the nRF Toolbox app and its in swift.

My current app is in objective-C and I want to implement dfu in my app. Is there any framework that can be used in my objective-C project.

Please send me ... (more)

Hi All,

I am working printer project where i will be using two boards , one is nrf51 dongle which acts as client(sends/advertise the data) and another is nrf51422 soc on my printer board which acts as server which ... (more)

Hi everyone,

May I know does the nRF51822 SDK support any graphics library, like emWin, uC/GUI, or others? Because I would like to present a colorful and graphical on the display (a small size OLED or LCD).

p.s ... (more)

Hi, I am trying to print ble device names around my board by scanning and i am able to print some devices and i am unable to print other device names even though they are advertising but by printing through ... (more)

The last time, i could wireless communication by pressing a botton. The next time, i wanna send the data to phone if the communication is established. i modified the source code of "main.c" of "void uart_event_handle", but i couldn ... (more)

I'm building a project for the nRF52832 using the NRF5-SDK version 14.0.0. I'm compiling using GCC 6.3.1 (arm-none-eabi-gcc (GNU Tools for ARM Embedded Processors 6-2017-q2-update) 6.3.1 20170620 (release) [ARM/embedded-6-branch revision 249437 ... (more)

I made a pulse oximeter product with nrf51822AC(base on SDK5.2.0 & S110 6.0.0), and implemented SIG GATT-based profile（PLXP+PLXS). Now we want to do BQB RF PHY testing to test the low energy phy layer ... (more)

Hello,

I get two errors when compiling examples\ble_peripheral\ble_app_uart with IAR 8.11. I have ble_app_uart_pca10040_s132 - nrf52832_xxaa as the active project.

I get the following errors: Error[Pe235]: variable "__stdout" was declared with a never-completed type D:\Projects\Nordic ... (more)

I have defined the number of pages as 100 and the size of each page as 1024, which should be providing approx 400k of flash storage. I have 5 separate records that are being 'updated' via fds_record_update() every log interval ... (more)

There are already a few threads about this problem but none of them helped.

I want to use GPIO9 + 10 as .. well .. GPIO.

Here's what I did:

• added CFLAGS += -DCONFIG_NFCT_PINS_AS_GPIOS in Makefile
• added a section in linker script:

UICR_NFCPINS ...

Hi all, Refer as the antenna whitepaper, The Zs = 50 Ohm pi network need to match. I saw a matched pass filter optimized for nrf52832 from Johanson (Part Number:2450FM07A0029).

Do We just put this BPF close to nRF52832 chips ... (more)

Hardware (HW)

• BMD 350 evaluation board, equivalent to PCA10040

Software

• nRF5 SDK 12.0. Keil uVersion 5 IDE.

• SoftDevice: s132_nrf52_3.0.0_softdevice.hex

• Firmware application (FA): nRF5_SDK_12.0.0_3bcc1f7\examples\ble_peripheral\experimental_ble_app_buttonless_dfu

Modified dfu main.c:

1. Add uart service init ...

Hello,

We try to use "ATT_MTU" and "Data length extension (DLE)" to expand a packet in S132 SDK 14.0.0. When we set "ATT_MTU" > "DLE", please tell me what happens?

We thought data was sent by 1 packet when ... (more)

Hey everyone,

I'm new to the Nordic/Thingy/Embedded world and was hoping I could get some hand holding to achieve a simple change.

I would like to change the Thingy sample project to display as "MyThingy" instead of ... (more)

Hi,

nRF52832 SDK 14.0

I am using the ble_blinky app. Currently when I compile the application and flash it to the board, it gets flashed to these pages: 0x23000 to 0x27000.

Let's say I want to compile it ... (more)

Peripheral device has 2 services,but central can find only 1 service(0x1001）. I want to find other service(0x0001) According to the message seems to be looking for 0x1001,but ! want to looking for every services.

I don not ... (more)

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 well. Except the RX part of the testing. When we choose ... (more)

Hi All,

I'm currently designing my implementation of BLE Services/Characteristics and wanted a quick review to make sure I'm on the right path based on my implementation. For example, here are my product requirements: (Note that this ... (more)

hai

i am using mbed to program my nrf51822. in my application i need to read two analog sensor values. i am using p5 and p6 pin for that.

 AnalogIn   analog_pin_1(p5);
 AnalogIn   analog_pin_2(p6);

now i have a periodic ... (more)

Hello every! I am testing FATFS example with nrf5284 PDK . CLK - P1.15 MISO - P1.14 MOSI - P1.13 CS - P1.12 My micro sd card module work correctly with STM32 MCU. I rebuild FATFS example and load it to ... (more)

Hello

I was wondering whether is possible to use an updated version of the softDevice into an older SDK, my current hw is a nRF52832pca10040 DK

For example, I am currently working with the SoftDevicev3 since I use SDK12.2 ... (more)

Hello,

can anybody tell me the exact differences between a Link Layer Acknowledgement and the Acknowledgement used by a write Request? Does anybody have some statistics about packet loss that might occur if one is only using WRITE_CMD instead of ... (more)

Hi everyone,

I'm trying to compile my own bootloader. I had this error when trying to flash it into my module:

Here is my linker script for the bootloader:

SEARCH_DIR(.)
GROUP(-lgcc -lc -lnosys)

MEMORY
{
  FLASH (rx) : ORIGIN = 0x0003c000 ...

Hi. I am trying to create a dfu zip file that contains the softdevice, bootloader, and application. I am DFU upgrading an NRF52 device from SDK v13 to SDK v14 via Nordic's Android nRF Toolbox DFU app. I can ... (more)