# 3,814 questions

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## BLE_GAP_IO_CAPS_DISPLAY_ONLY Android No Working

ScreenRecord_20171204_133336.mp4

I am working in sdk14.1 nrf52832 ble_app_hids_keyboard_pca10040_s132.

IOS and WIN10 on working ,but android no working .

here is some of the important code :

define passkey and set it:

 uint8_t passkey[] = "123456";
m_static_pin_option.gap_opt.passkey.p_passkey = passkey;
sd_ble_opt_set ...
(more)

26
views
no
no

## unable to compile OpenMesh on SDK12

Hi,

I'm unable to compile the OpenMesh example application. I've modified the make file with correct paths. However I'm getting the following error. Can you please help?

In file included from ../../../../../../components/device/nrf.h:49:0 ... (more)

29
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I am using cjmcu 8223 board for my project so for uploading program I brought a ST-link V2 pen drive like device but I can't able to detect the board on the ST-link software and non happen I am ... (more)

28
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## No space in execution regions errors when using u8g2 library

Hi all. I'm trying to use the u8g2 library with ss1306 controlled OLED display. After I added the library to the project, Keill gave an error

Error: L6406E: No space in execution regions with .ANY selector matching u8g2_fonts.o ...

(more)

72
views
1
vote
no

## NRF52840 Coded Phy Sensitivity with soft device 6.0.0-6.alpha

Hi,

although the NRF52840 has a nominal receiver sensitivity of -103 dbm I am only able to get a sensitivity of around -97 dbm. I know there was a bug in older soft device versions resulting in a decreased sensitivity ... (more)

25
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1
vote
no

Right now I'm stuck with the COMP driver. What I am trying to do is. Initialise COMP, start COMP with interrupt and STOP shortcut. Once I handled the interrupt I just want to start the COMP again with an ... (more)

60
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## AES CCM encryption by S132 timeslot API

Hi,

I have tested AES-CCM of nRF52832 with reference to the following answered questions.

https://devzone.nordicsemi.com/questi...

https://devzone.nordicsemi.com/questi...

https://devzone.nordicsemi.com/questi...

I have confirmed that the NIST example would produce correct results ... (more)

55
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## nrf51DK data tranfer issue

Hello All,

I am working on nrf51dk , we are facing the issue if we send > 8 bytes of data in one time from Uart console then BLE_NUS will reset..

Our Setup: ECU --> K-Line Trans receiver --> Android App

The feature of ... (more)

31
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## Connect via external MCu

Hey, I am using WT51822-S4AT module and want the nrf51822 to connect to phone. I don't have nrf51-dk. I am using stm32f0-discovery kit. Can it be done using that kit? I searched for examples but coudn't find anything.

36
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## SDK 12.3.0 - why I must flash mbed build first to make SDK build work on nRF51 DK?

Hi there,

I wonder why I have to flash my nRF51 DK using mbed build first to make the SDK build work?

I received my 2 nRF51 DK today and I tried the first one in the following step using ... (more)

22
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## Gpiote interrupt handler

I am writing an application to read IQ samples from TICC1200 transceiver. For which I am using SPI with easy DMA. nrf52840 acts as master and cc1200 acts as slave. Whenever there is a new sample in cc1200 register it ... (more)

48
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## Nordic nRF52-DK disconnects from computer when I upload the BIN file

I am attempting to run my first bit of code on my Nordic nRF52-DK and every time I have attempted to upload the code to the board, the board disconnects in the middle of the upload process and then reconnects ... (more)

23
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no
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## Failed to locate the pc_ble_driver shared library

Hi, We are facing issue related to pc_ble_driver shared library at the time of run script.

Traceback (most recent call last):

File "SDFTest.py", line 414, in <module> init(sys.argv[1])

File "SDFTest.py", line 70, in init from ... (more)

21
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## May be a beacon qualified as BLE 4.x device without random?

I have a problem with some beacons which don't follow BLE specification. Namely BLUETOOTH SPECIFICATION Version 4.2, 4.4.2.2 Advertising Interval section. The problem is that my beacons don't have random addition at all... I ... (more)

104
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## DFU Update OTA of an application with ble secure bootloader works only once

Hi, I try to use the dfu update OTA with ble secure bootloader. If the Flash is erased and only the SD v5.0.0 and the own Bootloader are programmed a update OTA is working fine (using nrf Connect ... (more)

56
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## SDK11 132 ble_app_uart domo add dfu no work

Hi everybody : SDK11 132 ble_app_uart domo add dfu no work . This is my code . I don't know how to set RAM.This is my set.

53
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## Current Date Time caracteristics

Hi, everyone, I develope the project with BLE support. In my project I need to define the time server. For this purpose I tried to find any example reffered to it, but no example was found neither in your project ... (more)

20
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## Turn off and on nrf51dk to test fds with what tool to view output

Hi,

I managed to get fds to store some information in nrf51dk for persistent data storage. I would like to check if the data is still available in the chip after power off and on. I have been using SEGGER ... (more)

49
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## Uart on analog pins P0.02,P0.03 NRF52832

Hello i cannot get uart to work correctly on these pins. The board seems to reset when i try to run uart on these pins. I can get them to work on pins P0.06 and P0.08. I think ... (more)

55
views
1
vote
no

## Pairing and Connection parameters

Are there any dependencies between the connection parameters configuration and pairing?

I am using nRF52840 and SDK 14.0.2 and ATT_MTU example. I am trying to add pairing to this code base using peer manager. Bonding is not enabled ... (more)

49
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## Would calculation affect timer

I am using a power profiler to measure the timing of my program and I found something wrong. So I tested with a simple pure timer.

So first I set the timer during to 300ms

#define half_epoch_during       APP_TIMER_TICKS(300)
err_code ...
(more)

40
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## Getting "no debugger connected to PC" error on my mac with nrf51dk

Hey all,

I'm working with the nRF51822 (nRF51dk) on a mac running high sierra, and I've been following this tutorial to try to get started. But when I try to make flash code onto the board, I keep ... (more)

28
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## WHEN WE GET UART_DRIVER_ERROR?HOW TO AVOID IT?

i am using uart communication between nordic and some device ,communication was fine upto some time but after some random amount of time i am getting uart_driver error...why this error will come?what will exactly happens if it comes ... (more)

39
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## GPIO pin reading wrong value

There seems to be an issue when reading GPIO pins returning false readings. I am using two pins for I2C communication, 26 and 27, I am configuring them with the required configuration for using I2C and then setting them high ... (more)

31
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## Segger Embeded Studio convert scripts

Hi guys, has anyone written some scripts to convert Makefile project to SES xml and the other way around?

34
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## Segger Embeded Studio on Linux

Hi guys, has anyone had problems with: Cannot connect to J-Link via USB. message?

The device is alive and i can flash and connect to it from CLI.

Thanks

34
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## characteristics value not updating

Hi, i am using SDK v8 with softdevice v8,using master control panel pc application,added custom service and characteristics to application,problem is characteristics value not updating in pc application even not getting any error from sd_ble_gatts_hvx(),but able ... (more)

163
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## sd_ble_gap_data_length_update error 0x13

Hi

I have a problem changing the max_rx_octets and max_tx_octets parameters with the sd_ble_gap_data_length_update function. On request from the app the size is attempted to be changed to the maximum value of 251.

I receive a 0x13 error (NRF_ERROR_RESOURCES), and ... (more)

29
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no

## failed to merge target specific data of a file

Hi everyone,

I'm trying to compile a ble_app_uart exemple using my own Makefile (The exemple compiles and works fine), but i got an error from the linker.

error: objects_application/main.o uses VFP register arguments, objects_application/TeepTrakApp52.out does ...
(more)

31
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## NRF_ERROR_INVALID_ADDR in ble_uart_example / SDK 14.2.0

Hello,

i'm trying to run the ble_uart_example on my nRF52840 eval-board, but it always fails on this line:

err_code = ble_advertising_init(&m_advertising, &init);
APP_ERROR_CHECK(err_code);


It fails by reporting this error message on the RTT Viewer:

0> <error> app: ERROR ...
(more)

#### Statistics

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• Resolved questions: 11282
• Total questions: 27855

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