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23,804 questions

16
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1
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Last activity 2017-07-25 14:46:45 +0200 by Bjørn Spockeli flag of Norway

Secure OTA in custom Board

Hi,

I had done secure OTA in nRF51 DK board using SDK 12.2.0 and s130 2.0.1 softdevice. Now, i am trying to same thing with my custom Board RL-51822-A1.

For that first i am uploading softdevice ... (more)

21
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no
votes
1
answer
Last activity 2017-07-25 14:46:43 +0200 by Jørgen Holmefjord flag of Norway

nrf52 application Using ADC 2 channles 12Khz 12Bit

Hi ,

Please advise, what the Low Power option I have if I want to sample Two channels of analog input at the same time. The sample rate in every channel is 12K, 12Bit. And to fills 512 samples word for ... (more)

15
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no
votes
1
answer
Last activity 2017-07-25 14:29:44 +0200 by Bjørn Spockeli flag of Norway

How program beacon OTA

Good afternoon.

I have bought a "nRF51822 Bluetooth® Smart Beacon Kit (nRF6930, Rev 1.3.0)" this is the first time I work with this, docs say that it has installed softdevice s110 with sdk 7.

The problem is that ... (more)

12
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no
votes
1
answer
Last activity 2017-07-25 14:22:05 +0200 by Bjørn Spockeli flag of Norway

Can`t run bootloader_secure on customer board

Hi I am using SDK12.2.0 and Softdevice S130 v2.0.1 on board PCA100028 ; the board works fine and Phone can scan the name of DFUtarg; But when run the same on the customer board, it seems didn ... (more)

24
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1
vote
1
answer
Last activity 2017-07-25 13:53:26 +0200 by Bjørn Spockeli flag of Norway

Programming external 51822 chip with 51DK and MBED - how?

Hello,

Can you please provide any link or give me any advice how to connect NRF51822 chip with NRF51DK? Here is my connection that doesnt work:

DK GND DETECT and GND together --- NRF 51822 CHIP GND

DK SWD CLK --- NRF ... (more)

19
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no
votes
1
answer
Last activity 2017-07-25 12:55:26 +0200 by endnode

Question about consumption nRF51822

Hi,

I'm looking for a BLE device to work with an arduino and to speak with a smartphone. The point is that the connection should be made by the user via the smartphone. This connection would be rare and ... (more)

27
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1
vote
1
answer
Last activity 2017-07-25 12:29:56 +0200 by Bjørn Spockeli flag of Norway

Soft device specification details

Hello All

Could you please tell me what is the main difference between following S130,S120,S110, Please help me

12
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no
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answers
Last activity 2017-07-25 12:03:29 +0200 by ac1dg

nRF51 DK not detected (no LED5)

Hi,

I tried to flash the mbed FOTA bootloader on my nRF51 DK. I copied the bin file to the bootloader device. It said the storage on the device is to small. Now it won't show up as a ... (more)

15
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no
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no
answers
Last activity 2017-07-25 11:52:46 +0200 by Linxi

show float number in sdk13.1

float f = 1.234; NRF_LOG_INFO("My float number" NRF_LOG_FLOAT_MARKER "\r\n", NRF_LOG_FLOAT(f)));

How to simplify this way to show float number by uart in sdk13.1. In sdk 10.0.0 ,i use app_trace_log to debug. And now ,it ... (more)

6
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no
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no
answers
Last activity 2017-07-25 11:51:58 +0200 by ac1dg

nRF51 DK not recognized anymore (no LED5)

Hi,

I tried to flash the mbed FOTA bootloader on my nrf51 DK. I copied the bin file to the bootloader device. It said the storage on the device is to small. Now it won't show up as a ... (more)

125
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no
votes
1
answer
Last activity 2017-07-25 11:25:30 +0200 by Bjørn Spockeli flag of Norway

schmitt triggers on nRF51 GPIO

Could someone confirm whether there are schmitt triggers on the nRF51822 GPIO. I found the following thread that mentions them, but it also is discussing the nRF52 series so I was not sure. https://devzone.nordicsemi.com/questi...

Thanks!

35
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no
votes
1
answer
Last activity 2017-07-25 11:14:10 +0200 by HiberXen flag of Bangladesh

is there any complete code for LPCOM + SAADC working same time?

Hello, i am working on a rotation counter, i am using adc and LPCOM with nrf52832 DK board. but LPCOM code is not working.

static void lpcomp_event_handler(nrf_lpcomp_event_t event)
{
    // Clear event
   if (event == NRF_LPCOMP_EVENT_CROSS)
    {

       rotation_int++;
    }


    // Toggle pin to indicate triggering ...
(more)

23
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no
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no
answers
Last activity 2017-07-25 11:09:22 +0200 by Bjørn Spockeli flag of Norway

Custom Board vs DK and SD110 vs SD130

Hi,

I made a custom board with nrf51822 and custom antenna which works fine for examples which use SDK10 + SD110. For my application it was recommended to use SDK12.3 + SD130. I started develop FW on NRF51DK with SDK12.3 ... (more)

51
views
1
vote
1
answer
Last activity 2017-07-25 11:06:33 +0200 by Adrian Eggenberger flag of Switzerland

nRF Mesh Keil support?

Hi, Is there any plan for adding the Keil support for the official nRF mesh SDK?

Regards

6
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no
votes
no
answers
Last activity 2017-07-25 10:56:58 +0200 by martin

timestamping w/o active timer (APP_TIMER_KEEPS_RTC_ACTIVE = 1)

hello,

i am using the nrf52840 preview devkit and am currently trying to find a solution for timestamping / for a time-base. the idea was to use the RTC for that since it provides a pretty accurate time reference and i ... (more)

19
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no
votes
1
answer
Last activity 2017-07-25 10:54:55 +0200 by Jørgen Holmefjord flag of Norway

sdk12 SAADC

Hi,     I am using saadc, how the AD value is converted into voltage, and whether there is a document describing this formula.

45
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2
votes
1
answer
Last activity 2017-07-25 10:46:10 +0200 by Jørgen Holmefjord flag of Norway

How do I make suggestions for improvement to the softdevice stack?

I have some improvement I would like to see in the stack. How can I get these implemented. Improvements include:

  1. Allow advertisement reporting events during connect scanning. Currently when a connect is in progress advertising packets are received and processed ...

(more)

34
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no
votes
1
answer
Last activity 2017-07-25 09:49:41 +0200 by Jørgen Holmefjord flag of Norway

Thingy:52 Build Error in Keil

I am following the Thingy:52 "Compiling With Keil" instructions provided in the following link.

https://nordicsemiconductor.github.io...

However, I get the following error. How do I correct this error? Thanks in advance for your help.

*** Using Compiler 'V5 ...
(more)

371
views
3
votes
1
answer
Last activity 2017-07-25 09:29:52 +0200 by Aryan flag of Norway

freertos RTC issue in port_cmsis_systick.c [closed]

Hello,

Ported my FreeRTOS application on NRF52 from SDK 12.2.0 to SDK 13.0.0 .My application is using freertos apptimer for timestamping and waking up of device which was working without any issues on SDK 12.2 ... (more)

10
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no
votes
no
answers
Last activity 2017-07-25 09:29:41 +0200 by mrono

PPK cancelling 'start logging'

Hi. Great that you have added logging capability to the PPK desktop app. This was exactly what I needed.

I noticed one minor issue with the logging: When starting logging, it asks for a file to save the log to ... (more)

47
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no
votes
1
answer
Last activity 2017-07-25 09:15:24 +0200 by endnode

How to set up BLE5 on nRF52832

I have 2 questions regarding BLE5 on nRF52832 Which Soft device and SDK has to be used to implement BLE 5 on nRF52832? We will be using the nRf52 DK for same. Is the provision of BLE 5 on mRF52832 ... (more)

18
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no
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answers
Last activity 2017-07-25 09:10:49 +0200 by Zoltan Mayer

Bug in peer_data_storage.c in nRF5 SDK?

Hi,

I found a suspicious line of code.

SDK: nRF5 SDK 13.1.0 (7ca7556)

File: peer_data_storage.c

Function: pds_peer_data_read

At line number: 415

    if ((*p_buf_len) <= data_len_bytes)
    {
        memcpy(p_data->p_all_data, rec_flash.p_data, data_len_bytes);
    }

According to the comment above: "...check that ... (more)

40
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no
votes
1
answer
Last activity 2017-07-25 09:09:47 +0200 by Jørgen Holmefjord flag of Norway

nRF52840 package type

Are you planning for any other package type for nRF52832 (currently is AQFN) say like nRF528232 QFN

12
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no
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answers
Last activity 2017-07-25 09:00:28 +0200 by Mani

Using timer interrupt in uart_ble application

Hi,

I am using timer interrupt in my code. In that I will be generating interrupt after certain time interval, after the interrupt it should process the incoming data from the UART. For every interrupt ble_nus will send 20 bytes ... (more)

27
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no
votes
1
answer
Last activity 2017-07-25 08:50:26 +0200 by Jørgen Kvalvaag

How can I make only bonded devices can write to my characteristic on nRF_5 chip?

I am developing an application with a single service that has a single characteristic with read and write operations.

I want to give the ability to writing to this characteristic to only bonded devices and not just any connected device ... (more)

36
views
2
votes
1
answer
Last activity 2017-07-25 08:28:13 +0200 by Knut Auvor Grythe

how to send temperature values in nrf5840

I'm using Nordic nRF5840 and I want to send the micro controller's temperature every 1 second via Bluetooth. Can you tell me how to implement it?

I found an example named Health Thermometer Service Sample Application. Does it ... (more)

14
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no
votes
no
answers
Last activity 2017-07-25 06:39:51 +0200 by dheeraj88

How to set connection timeout in BLE android?

In my BLE device connection timeout is 20 sec. I want to change it using android code.

27
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no
votes
no
answers
Last activity 2017-07-25 05:38:44 +0200 by Mitch996

BLE Mesh questions

Hi, I've read through partially of the "getting started" docs, and I'm still having questions about these issues:

  • Will there be one dedicated provisioner interfacing with an external device (a desktop PC for example) with the rest of ...
(more)

40
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no
answers
Last activity 2017-07-25 01:15:16 +0200 by Akshay

Which USB class should I use for maximum data rates on nrf52840? And what is the maximum size of transfer if I use CDC_ACM?

I want to transfer sensor data to a raspberry pi using the in-built USB on nrf52840. The example codes have the following classes: CDC_ACM, Audio, HID and Mass storage. I want to transfer data around 200 KB/s. Which class ... (more)

93
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no
votes
2
answers
Last activity 2017-07-25 00:56:10 +0200 by Pratyush Dave

Issue with SDK 13.1.0 Power management

Hi there,

I have nRF52840-Preview-DK eval board. I have downloaded the “SDK 13.1.0”. I was trying out the power management example under the folder “..\nRF5-SDK_copy\nRF5-SDK\examples\peripheral\pwr_mgmt\” on IAR. This example doesn’t work out of ... (more)

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  • Resolved questions: 9873
  • Unanswered questions: 2946
  • Total questions: 23804