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Last activity 2017-11-08 08:39:41 +0100 by Jay Tyzzer

NRF 51822 is not discoverable

In NRF 51822 custom board I uploaded ble_app_uart code. Program uploaded successfully. But not able to discover from Phone and Tablet, where in another board it works properly. What is the problem here?Kindly help me on this...

32
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answers
Last activity 2017-11-08 00:33:44 +0200 by DYNAMICTOYS

nRF51822 - fail to upload device firmware through BLE bootloader. ( used to be good)

HI,

I am using nRF51822 S130, SDK12.3.0

I created private key for application code and public key for bootloader. Just few days ago, the zip file can upload to the device ( when device in DFU mode ) through nRF ... (more)

53
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no
votes
1
answer
Last activity 2017-11-07 22:44:58 +0200 by John DeWitt flag of United States

Erasing UICR register in application code

Hello Everyone,

I am using nrf51822 with S130. After completely erasing the chip, with the below mentioned code snippet in application code:

NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Wen << NVMC_CONFIG_WEN_Pos;

while (NRF_NVMC->READY == NVMC_READY_READY_Busy){}

*(uint32_t *)0x10001080 = hexData;

NRF_NVMC->CONFIG = NVMC_CONFIG_WEN_Ren << NVMC_CONFIG_WEN_Pos;

while (NRF_NVMC->READY ... (more)

56
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no
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answers
Last activity 2017-11-07 22:00:51 +0200 by Mikael L.

nRF51822 BLE and SPI slave

Hi,

I am working with the BLE Nano module and the mbed online compiler. I have the Nano acting as an SPI slave. The problem occurs when I try to add BLE functionality. As soon as I add the ble ... (more)

45
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1
vote
1
answer
Last activity 2017-11-07 12:51:15 +0200 by fvisztra

nRF51 UART sends just 2 packets

Hi Guys!

I am a newbee to develop a BLE IoT, and I am really trapped: first of all: I am using the UART example from the SDK (12.2) I'd like to send a float array with 54 ... (more)

45
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2
votes
2
answers
Last activity 2017-11-07 12:11:43 +0200 by Stian flag of Norway

Send 16 bits instead of 8 bits over BLE

Hello,

I'd like to send 16 bits data over ble instead of 8 bits

gatts_value.offset = 0;
gatts_value.len = len;
gatts_value.p_value = data;

err_code = sd_ble_gatts_value_set(conn_handle, value_handle, &gatts_value);

for len I set the value to 2 and cast the ... (more)

48
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no
votes
1
answer
Last activity 2017-11-07 11:35:41 +0200 by enes.sakut

How to receive nRF51 BLE device from android phone notifications?

Hi I'm creating an android app for smartwatch(used nrf51 ble),I have two questions

1.I used ANCS(Apple notification center service) in my android app,but nrf51 device didn't read anything.I added ANCS UUID,characteristics ... (more)

31
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no
votes
1
answer
Last activity 2017-11-07 10:44:59 +0200 by Joakim Jakobsen flag of Norway

Programming the nRF51822 beacon kit.

I am struggling to find a starting point to be able to program the beacons. I'm completely new to this but want to be able to change the tx power so that they are only visible within a meter ... (more)

48
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1
vote
1
answer
Last activity 2017-11-07 07:43:43 +0200 by testy

Bootloader RAM Settings

We have shifted our development from nrf51422 QFAC (32kB RAM and 256 kB Flash) to nrf51822 QFAA (16kB RAM and 256 kB Flash).

I'm unable to run dual bank ble bootloader on the latter one, which I assume is ... (more)

73
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no
votes
1
answer
Last activity 2017-11-06 16:05:45 +0200 by omar

Nrf52832 uart

Hi every body , i have some issue if you don't mind. i rooted a board with NRF52832 SOC without PCA. i want to get a uart connection with pin 8 and 10 . It s possible to do serial connection ... (more)

25
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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)

57
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no
votes
2
answers
Last activity 2017-11-06 10:54:09 +0200 by Jørgen Holmefjord flag of Norway

Problem buiding the tutorial "A beginner's tutorial: Advertising" [closed]

I am trying to build the project which I downloaded from github for the "A beginner's tutorial: Advertising" but I get errors for missing files when I try to build it both in Keil and Segger IDEs.

I know ... (more)

30
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no
votes
2
answers
Last activity 2017-11-06 10:14:00 +0200 by Sigurd flag of Norway

"pstorage_platform.h" not found

Hi there,

i am running bootloader code but facing a error that is "pstorage_platform.h" not found.i am using code from given path which is from SDK10.0.0 .what should i do?

C:\Users\Administrator\Desktop\nrf51822\nRF51_SDK_10.0.0_dc26b5e\examples\dfu\bootloader\pca10028\dual_bank_ble_s110\arm5_no_packs

44
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no
votes
no
answers
Last activity 2017-11-06 08:58:10 +0100 by ramakrishna

How the ble peripheral knows that ble central was disconnected? if i trying to send continuously some packets to ble peripheral some times peripheral is not responding? what might be the issues?

How the ble peripheral knows that ble central was disconnected? if i trying to send continuously some packets to ble peripheral some times peripheral is not responding? what might be the issues?

23
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no
votes
no
answers
Last activity 2017-11-03 12:26:24 +0200 by jdelapena

Sending BLE Authentication to Nordic Device (NUS)

I have a device that runs with nRF51 chip with the NRF UART Service (NUS). I have a Raspberry Pi 3 and I want them to communicate.

The device requires an authentication packet that needs to be sent within the ... (more)

21
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no
votes
no
answers
Last activity 2017-11-01 11:10:22 +0200 by phanhust

lost advertising after ble disconnect

hi, i'm newbee in BLE,now i have a trouble about advertising in NRF51822.

in my project,after BLE disconnect, I can't see BLE again that mean BLE can't advertising continuously.

t tried in example in SDk11 ... (more)

189
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no
votes
4
answers
Last activity 2017-10-31 12:16:32 +0200 by sosse

DFU sdk 12.2.0 (s130) nrf51822 QxxAA

can i use dfu secure bootloder for nrf51822 QxxAA ? if yes please help me how ?

150
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no
votes
2
answers
Last activity 2017-10-31 00:56:52 +0200 by Eirik Midttun

Is there a mesh gateway project in mesh SDK?

I got the BLE mesh SDK from: http://www.nordicsemi.com/eng/Products/Bluetooth-low-energy/nRF5-SDK-for-Mesh/(language)/eng-GB

I want to develop a mesh gateway to connect the internet. Is there a example gateway project for mesh?

Thanks.

44
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no
votes
no
answers
Last activity 2017-10-30 19:09:15 +0200 by B

Why is the function "gpiote_init()" conflicting with the bluetooth code?

Hello, I tried to add the code of the bluetooth tutorial called "Bluetooth low energy Characteristics, a beginner's tutorial", with a code that measures the delay of two forms of waves, but when debuging them together there is a ... (more)

34
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no
votes
no
answers
Last activity 2017-10-30 15:42:51 +0200 by abosch

Update firmware from flash

Hi all,

I'm using nrf51822, sdk 6.1 and s110 v7.1.

My idea is to use the GPRS module of my board to receive the new firmware (the module works with UART), save it to the flash(if ... (more)

225
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1
vote
1
answer
Last activity 2017-10-30 13:11:16 +0100 by Hung Bui

encryption problem

How to make an encryption on nRF51822? Does it need to set

 sd_ble_gap_sec_params_reply(m_conn_handle, BLE_GAP_SEC_STATUS_SUCCESS, &m_sec_params, &sec_keyset)

the forth parameter in this function ? what's the value for this parameter?

Thanks for your kindly reply. Best Regards

128
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1
vote
1
answer
Last activity 2017-10-30 08:37:08 +0200 by endnode

Configurable UUID

Hello,

I want to change the 16-bit of 128-bit UUID at runtime. is this possible?

let me explain...

1)the first both central and peripheral set 128-bit UUID like this....

6e400000-b5a3-f393-e0a9-e50e24dcca9e

2) now after connection the central send ... (more)

142
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no
votes
no
answers
Last activity 2017-10-28 07:01:22 +0200 by milav flag of India

File Transfer in DFU mode

Hello

can we do JPEG file transfer in DFU mode instead of .Hex File?

Thank You

141
views
no
votes
1
answer
Last activity 2017-10-27 18:04:30 +0200 by Karsten

The nRF51822 is halted or hand_up frequently。Why?

Hello,this is Lee.I have a problem about nRF51822. When I turn on/off the power 2.8V to it ,it hangs up frequently.I check POR function,I found that the residual voltage (VDD) decreases slowly and stop ... (more)

17
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no
votes
no
answers
Last activity 2017-10-27 17:11:41 +0200 by nagaraj

Debug mode is not working with IAR and nrf51822

Hi, I am using nrf51822 (pca10004) with SDK110 softdevice programmed through j-link LITE SEGGER. After programming the custom code (Basic I2C code) and when we try to debug the code, we are getting "Warning: T-bit of XPSR is 0 but ... (more)

71
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no
votes
1
answer
Last activity 2017-10-27 14:09:57 +0200 by Bjørn Spockeli flag of Norway

What is Noble and How do I use it?

I have a BLE device that runs nrf51. I have an rpi3 and I want them to communicate with each other via BLE communication.

I understand that I need to develop a python application on the rpi3 side.

I have ... (more)

22
views
1
vote
1
answer
Last activity 2017-10-27 13:13:39 +0200 by Martin Børs-Lind flag of Norway

When we encounter comments saying refer @ref where is the reference at ?

For example: /*< Value location, see @ref BLE_GATTS_VLOCS./

And for the love of GOD I cannot find these references anywhere !! Help Please.

42
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no
votes
no
answers
Last activity 2017-10-26 16:14:33 +0200 by milav flag of India

flash write with defined address

Hello,

I want to save Image data which are come from the central device to flash memory of peripheral side.

The image data size is vary from 3KBytes to 10KBytes.

i want to save at particular address so that application ... (more)

58
views
no
votes
1
answer
Last activity 2017-10-26 15:15:23 +0200 by Sigurd flag of Norway

nRF 51822 Low power mode

Hi All,

I'm new to nrf51822. I'm developing a battery powered device using the Nordic ble_app_uart_s110_pca10028 peripheral example program. I'm glad to inform you my core program is working successfully. But now i'm facing a problem ... (more)

29
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no
votes
1
answer
Last activity 2017-10-26 12:58:58 +0200 by Bjørn Spockeli flag of Norway

one central two peripheral

Hello,

here i explain the set up.

Cental_A Board :- scanning two peripheral Peripheral_A Board :- advertise with name Peri_A. Peripheral_B Board :- advertise with name Peri_B. both peripheral board are advertise at there defined rate.

I want to connect first Cental_A to ... (more)

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