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Last activity 2018-01-19 18:13:56 +0200 by nordic_fan

Can't run modified nrf51-DK example on custom board

Hi. I took the ble_central/experimental/ble_app_blinky_c example and modified it for my needs. It works on the nrf51-DK. Now I want to use it on a custom board with nrf51822qfab. I modified the Makefile in the following way:

changed ... (more)

30
views
no
votes
1
answer
Last activity 2018-01-19 14:50:04 +0200 by Joakim Jakobsen flag of Norway

sd_nvic_critical_region_enter/exit missing in s130 v2

Hi,

I am currently porting an application s110-based to s130v2.

Previously, I used to create critical sections using sd_nvic_critical_region_enter/exit.

Reading the s130v2 specification and nrf_soc.h, I noted that such APIs are missing.

How is possible to implement a ... (more)

19
views
1
vote
1
answer
Last activity 2018-01-18 02:16:58 +0200 by puff

softdevice fault handler, id=1, pc=0x104fa, s130 v2, 51822

Is that called from SD space or APP space? SES project file attached. nrf5-ble-tutorial-characteristic-CompletedCode.zip

16
views
no
votes
no
answers
Last activity 2018-01-17 10:39:48 +0200 by GK

nrf51822 BLE HID connection issues with windows 10

Hai,

We are trying to implement BLE HID Keyboard application using NRF51822. but we are facing the below issues with a windows 10 system acting as the central:

  1. when reset the nrf51822 it is not able to reconnecting the earlier ...
(more)

14
views
no
votes
no
answers
Last activity 2018-01-15 09:49:29 +0200 by Pedro

nRF52 to nRF51 DFU

Hi,

We have to implement a nRF to nRF DFU. On the nRF51 side a have an external memory with two bankers to perform secure update and downgrade using a bank 2. Now, we are planning to use a Nordic ... (more)

34
views
no
votes
1
answer
Last activity 2018-01-14 12:28:38 +0200 by puff

strange behavior after segger -> target -> reset

Finally, I managed to compile ble_beacon in segger. However, here's what I can not understand.

Using either Segger -> Target -> Download File or RKNRFGO I managed to upload the ready-made hex from that example to nrf chip, and I can ... (more)

40
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no
votes
no
answers
Last activity 2017-12-19 10:44:01 +0200 by Cesar

how to disconnect HID deivce on the peripheral side?

Hello, My question is when the nrf51822 connect the phone A, I whant disconnect ble on nrf51822 side let the new phone B can scan and connect nrf51822.

when used "sd_ble_gap_disconnect" disconnect the ble, the host(iphone/android phone) whill ... (more)

52
views
no
votes
1
answer
Last activity 2017-12-08 11:01:33 +0200 by eyalasko

JLink fails to program PCA100028

Hi,

All of a sudden (isn't it always the case :) the JLink debugger fails to flash the app code to the dev kit (PCA100028) The Project's softdevice is flashing well without any problem and so does sample projects ... (more)

46
views
2
votes
1
answer
Last activity 2017-12-04 19:26:19 +0200 by Sansei

BLE support for having multiple active connections (to multiple centrals) with NRF51822 while it works as peripheral

Hi all, I'm asking on both BLE specification version 4.0 (or more) and NRF51822 S130 about having support for multiple central connections at the same time while our NRF51822 device works as the peripheral role.

Base on the ... (more)

31
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no
votes
1
answer
Last activity 2017-11-30 07:13:23 +0100 by endnode

radio state RX

I need to us an external RF amplifier that requires TX and RX control lines. I'm looking for a way to tell when TX starts to kick the unit into TX mode. I also need to know when RX ... (more)

37
views
no
votes
no
answers
Last activity 2017-11-29 10:28:18 +0100 by Sivaguru Ravi

ble_app_hrs given in sdk nrf51822 not working.

Hi, I am working on the nrf51822 board and i am only the PAC20006 board version seems to be working on it. I am using sdk 11 and soft device version s130_nrf51_2.0.1 s suggested in the compatibility matrix ... (more)

195
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1
vote
1
answer
Last activity 2017-11-23 16:52:48 +0200 by Martin Børs-Lind flag of Norway

RAM Overflowed: section `.bss' will not fit in region `RAM'

I just integrated CMock which is part of my unit testing framework and i am trying to test a mocked function however i am running into RAM overflow error. Is there a way to reduce the size of CMock or ... (more)

44
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no
votes
1
answer
Last activity 2017-11-23 11:39:15 +0200 by RohanKadam

Unable to read characteristics complete value

Hi,

We are performing data transfer using NUS service (BLE-UART).

  1. Data passed is a 11-character string.
  2. READ and NOTIFY permissions are provided for Tx characteristic in NUS service.

The string is visible in nrf-Connect Android App's Log on enabling ... (more)

54
views
no
votes
1
answer
Last activity 2017-11-14 18:03:07 +0100 by endnode

How to configurate SoftDevice RAM usage?

I am working on nRF51422 with SDK 12.3.0, S130 v2.0.1, Keil C.

I got a problem in initialization my custom service. When I add some characteristic to SoftDevice, it returns NRF_ERROR_NO_MEM. I have some RAM space ... (more)

82
views
2
votes
no
answers
Last activity 2017-11-14 17:05:06 +0200 by Sansei

Nrf51822 stops handling GPIOTE->PORT interrupts

Hi engineers, Here we are facing a critical problem in which the NRF51822 stops handling/processing the GPIOTE->PORT interrupts after some days good working. This problem is occurring randomly whereby our system will stop working completely. Then, we have ... (more)

38
views
no
votes
no
answers
Last activity 2017-11-06 11:40:28 +0200 by Trong-Nghia Cheng

How to reconfigure/reset BLE? nrf 51822 - sd s130 2.0.1

Firstly the develop environment.

Windows 10 KEIL as IDE Device: nrf 51822 - sd s130 2.0.1 - SDK 12.1 nRF5_SDK_12.0.0_12f24da.zip

Use case: We have 2 application mode for BLE

Application 1 (using a 3th. framework): only ... (more)

29
views
no
votes
no
answers
Last activity 2017-10-27 13:49:26 +0200 by mc

2 buttons and 2 leds central to peripheral

Hello we have a project: Peripheral: experimental ble_app_blinky. Central: experimental ble_app_blinky c. With 2 buttons and 2 leds. We can push the button 1 or 2 on the peripheral and the "correct" leds toggel on the central! Peripheral to central ... (more)

97
views
no
votes
1
answer
Last activity 2017-10-27 10:42:51 +0200 by Bjørn Kvaale

does Thingy:52- pca20020 support Ble mesh??

Hi, I purchased Thingy:52 I want to develop ble mesh n/w application on Thingy:52.is it possible that I get any sort of support from you in this context.

37
views
no
votes
1
answer
Last activity 2017-10-26 13:01:04 +0200 by Bjørn Spockeli flag of Norway

when merge all hex one file. How to make it default not jump DFU mode?

Hi Community,

For community's help I success to create 12.3.0 DFU version get work.

So now I try to make all hex(softdevice, bootloader, application) to one hex file. Use merge.exe to do this. It's ... (more)

45
views
1
vote
1
answer
Last activity 2017-10-25 14:45:14 +0100 by Jørn flag of Norway

Add a supplemetnary button and led on Blinky exemple

Hello, we have a project on: Periperal: experimental ble_app_blinky / and Central: experimental ble_app_blinky c We have add suplementary:
LEDBUTTON_LED4 ( BSP_BOARD_LED_3) LEDBUTTON_BUTTON2_PIN" (BSP_BUTTON_1) For the moment when we push "button2" or "button1" on the peripheral, everytime the same "led 3" is ...
(more)

79
views
no
votes
1
answer
Last activity 2017-10-25 11:12:12 +0100 by SørenHN flag of Denmark

Combining mesh beacon example and light switching server example returns error?

I am writing a mesh beacon application based on Mesh SDK v0.10's beacon and light switching examples. A very kind Nordic employee has provided an example on how to combine the two examples projects. But it causes problems ... (more)

81
views
1
vote
1
answer
Last activity 2017-10-24 09:30:49 +0100 by emdi

How to create persistent variable?

I want to keep the value of the variable even if there is power interruption or reset in the system. That's why I want to create persistent variable in main. Do I need to use pstorage for this, or ... (more)

58
views
no
votes
1
answer
Last activity 2017-10-18 13:22:35 +0200 by Martin Børs-Lind flag of Norway

How can I prevent system reset?

Hello, I created a timer that runs the scan_start function at certain intervals.And I put this timer in the for loop.

static void scan_timeout_handler(void * p_context)
{
    scan_start();
}

static void timers_init(void)
{
    uint32_t err_code;

  // Create timers.   
    err_code = app_timer_create(&start_scan_timer_id,
                                                            APP_TIMER_MODE_SINGLE_SHOT ...
(more)

82
views
no
votes
1
answer
Last activity 2017-10-18 12:24:28 +0200 by Bjørn Spockeli flag of Norway

SDK 12.3.0 DFU service not work

Hi Forums,

I work 51822 custom board.

I try to add Buttonless DFU so I test the "experimental_ble_app_buttonless_dfu" compile is good.

But flash to the board can't find DFU service on NRF Connect tool.

I search online then find ... (more)

37
views
1
vote
no
answers
Last activity 2017-10-18 00:57:33 +0200 by Rajneesh

nRF51 DFU for BLE_central example

Hello Everyone,

Is there any example code is available which supports DFU in central mode for nRF51 devices?

Any help will be appreciated.

Thanks

Regards,

Rajneesh

81
views
1
vote
1
answer
Last activity 2017-10-16 13:24:31 +0200 by Thomas Stenersen flag of Norway

Wrong board in nRF5 SDK for Mesh v0.10.0

Hello,

I am having troubles to run the light_switch example from the nrf5_SDK_for_Mesh_v0.10.0.

I am using PCA10028 boards with nRF51822. I didn't modify anything in the SDK.

I did erase the content on the board, program the ... (more)

73
views
no
votes
no
answers
Last activity 2017-10-16 09:19:43 +0200 by Jørn flag of Norway

can not disable Rx or TX

i need to disable RX when data was transmit and enable RX again when data transmit complete. i tried :

NRF_UART0->TASKS_STOPRX = 1;
NRF_UART0->TASKS_STARTRX=1;
NRF_UART0->TASKS_STOPTX=1;  
NRF_UART0->TASKS_STARTX=1;

( i use SDK11 pca10028) but nothing happend,i still ... (more)

86
views
1
vote
1
answer
Last activity 2017-10-14 00:11:43 +0100 by akash

softdevice taking more RAM on SDK 12

Hi,

1) In the newer versions of NRF 5 SDK (sdk10 vs sdk12), does the softdevice takes more RAM? I am using nrf51822 (qfaa) and sdk 12.3. with softdevice s130_2.0.0.1. I want to use 1 peripheral ... (more)

47
views
2
votes
1
answer
Last activity 2017-10-13 17:02:56 +0200 by Wojtek

DFU secure bootloader loads softdevice in application area [closed]

Hi,

I used command:

nrfutil pkg generate --softdevice s130_nrf51_2.0.1_softdevice.hex --hw-version 51 --key-file private.pem sd130v2.0.1_update.zip

to generate package for only softdevice update (nrfutil version 3.3.2). Next I used nRF Connect to update ... (more)

56
views
no
votes
1
answer
Last activity 2017-10-11 11:15:47 +0200 by milav flag of India

BLE_app_uart issues

main.cble_uart.hex Hello,

I use nRF5_SDK_11.0.0_89a8197 and s130_nrf51_2.0.0_softdevice configuration to test the ble_uart program.

i use nrfgo Studio to load the soft device and application in custom ble hardware.

I use nRF51822_xxAB ble chip ... (more)

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