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21,737 questions

33
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Last activity 2017-04-28 12:10:08 +0200 by Petter Myhre flag of Norway

Phone disconnect nrf51822 immediately

Hi guys

I want connect nrf51822 (Raytac MDBT40) by my phone(HTC battery one android 4.4.2).

I use softdevice 130(ver.2.0.0) and SDK 11 demo code under KEIL ARM 5. (Nordic Semiconductor\nRF5_SDK_11.0.0_89a8197 ... (more)

1
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answers
Last activity 2017-04-28 12:07:25 +0200 by Damian

nRF52832 one of output (p0.15) lost its power

Hi!

I have noticed strange problem with one of GPIOs - P0.15. We have tested 50 devices based on nRF52832 and 3 of them have problem with P0.15 after few days.

P0.15 pin we have connected with two ... (more)

1
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Last activity 2017-04-28 12:05:01 +0200 by mr_sev

mesh dfu serial translate update file . 15 min? why so slowlly?

image description

8
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answers
Last activity 2017-04-28 11:39:06 +0200 by trdop

Ram related issue / What are the best practices (armgcc, linker) > nRF51 16 kB vs 32 kB

Hello Nordic Team,

I have a question about Ram Related Issue for our program or rather more generally in relation to a board test that we just received and for which, with my astonishment a fairly simple program does not ... (more)

4
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answers
Last activity 2017-04-28 11:30:48 +0200 by Mihail

SoftDevice Update size

Hi,

I try to add support of dfu in our appl. In documentation I could not find info about softdevice size which should be provided in start packet. It looks like I should use size of softdevice without MBR, isn ... (more)

17
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1
answer
Last activity 2017-04-28 11:29:49 +0200 by Bjørn Spockeli flag of Norway

What is the most current Cordova Library to use - Android

Our mobile app is currently running atop of easyble and nordicble.js/Cordova. This library works great on all Apple devices, however, Bonding with Android devices of various versions i.e. Android 5, 6, & 7 is yielding quite different behaviors ... (more)

43
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1
answer
Last activity 2017-04-28 11:24:13 +0200 by dingari

I am getting -1 on the screen when I save an unint32 and read it back? I am using BLEnano

uint32_t value = 99999;

lcd.clear(); lcd.setPosition(0,1); lcd.printf("Writing bytes 0-16\n");

i2c.start();

data[0] = 0; data[1] = 0;
data[2] = ((value >> 24) & 0xFF); i2c.write(0xA0, data, 3); wait (0.1);

data[0] = 0; data ... (more)

38
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Last activity 2017-04-28 11:07:13 +0200 by Allen_Shenzhen

still no flash events general

Hello,

I meet the same problem with the question "Status bit for sd_flash_write()".I have register my flash_nrf52_sys_event_handler() in sys_evt_dispatch(),but after sd_flash_write() still no NRF_EVT_FLASH_OPERATION_SUCCESS or NRF_EVT_FLASH_OPERATION_ERROR happened.And I had confirm that data has been written to the ... (more)

25
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votes
1
answer
Last activity 2017-04-28 11:04:02 +0200 by skypablo

CE certification

Hi, I am using nrf24l01+ tranceiver in a project I am willing to sell. I use modules with external antenna and without it. I need the CE certification of the module. Where can I find it or I have to ... (more)

37
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1
vote
1
answer
Last activity 2017-04-28 10:52:20 +0200 by Jørgen Holmefjord flag of Norway

ADC AIN0 -> P0.0?

We have done a custom PCB believing that we could use P0.0 as analog input. Now we kind of found out that we cannot, and will change the PCB design. Given that we already have some of them manufactured ... (more)

38
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no
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1
answer
Last activity 2017-04-28 10:49:05 +0200 by Bjørn Spockeli flag of Norway

How to detect the external low-frequency vibration crystal work?When it doesn't work how to switch frequency crystals?

52832,SDK12.0.0

I met such a situation: In the use of JLink burning program or air upgrade, after the completion of the program card died in initialization low-frequency crystals.

"sd_softdevice_enable(p_clock_lf_cfg, softdevice_fault_handler);"

17
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1
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answers
Last activity 2017-04-28 10:33:28 +0200 by allankliu

How to setup a complete BLE5 enviornment ?

I know BLE5 is the future of IoT. I also want to invest on it.

But how to setup a complete BLE5 environment? In China, IPv6 has not been supported. Therefore, 6LowPAN/Thread maybe in vain here.

And what is ... (more)

41
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no
votes
1
answer
Last activity 2017-04-28 10:21:20 +0200 by Wujq

Failed to disconnect from iOS device after several times

Hello. I am developing a project on nRF52832 using SDK 13, in which I need to transfer up to 300 bytes of data from iOS device via my dedicated app (in the background) to nRF in 10 second cycles. Project ... (more)

8
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answers
Last activity 2017-04-28 10:15:03 +0200 by JungHoo

Problem receive advertising packet

Now I’m using nRF51822 with S130 SoftDevice. There are two kinds of devices which is just for scan(A) – 20EA and both scan and advertising(B) - 2EA.

I found that B just like PingPong advertising and scan on one ... (more)

26
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answers
Last activity 2017-04-28 09:57:13 +0200 by Youssif

Sending keypress notifications when LESC is not in progress

Hi

This question is related to sd_ble_gap_keypress_notify(). According to Nordic softdevice S132 v3.0.0 API:-

"This function can only be used when an authentication procedure using LE Secure Connection is in progress. Calling it at other times will result ... (more)

19
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votes
1
answer
Last activity 2017-04-28 09:42:17 +0200 by Bjørn Spockeli flag of Norway

Serial Bootloader all-in-one?

Hi,

is there a way to make a all in one bootloader image which includes Softdevice and APP in one zip? And is there an example of the DFU via a Master uC. My setting is that I have a ... (more)

19
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no
votes
1
answer
Last activity 2017-04-28 08:53:49 +0200 by Bjørn Spockeli flag of Norway

How nrf bootloader finds which images is flashing currently...

Hi,

I want know how nrf51822 bootloader finds images type(means weather it is softdevice,bootloader,app) when we pass an image to bootloader for update. And also how bootloader comes to know weather an application is properly flash or not.

36
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votes
2
answers
Last activity 2017-04-28 08:53:47 +0200 by Jørgen Holmefjord flag of Norway

Will the list of nRF52840 modules be updated?

There is a list of 3rd party modules at https://www.nordicsemi.com/eng/Produc.... Will it be updated to include nRF52840 modules?

18
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votes
1
answer
Last activity 2017-04-28 08:50:48 +0200 by Jørgen Holmefjord flag of Norway

Renaming device

I'm trying to rename my device using s130, but the name doesn't get applied.

I went back to the "roots", ie the HRS sample.

Just before entering the loop, I add a name change:

advertising_start();

        ble_gap_conn_sec_mode_t sec_mode;

        BLE_GAP_CONN_SEC_MODE_SET_OPEN ...
(more)

19
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answers
Last activity 2017-04-28 08:23:45 +0200 by Milk

Sometimes the android app(especially vivo phone)can not scan the device

The vivo phone sometimes cannot scan the device, There are two devices embedded same program. However,one of them can be scanned,the other one can not. The advertising packet shows as follows: image description

image description

I can not find the wide difference ... (more)

254
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votes
2
answers
Last activity 2017-04-28 08:04:49 +0200 by Marco

power for radio state DISABLED

It appears the nRF51822 Product Spec does not list the current nor power for the radio DISABLED state. The Reference manual description of the state is “No operations are going on inside the radio and the power consumption is at ... (more)

16
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Last activity 2017-04-28 06:59:47 +0200 by justahu

IAR7.7compile52832ERRS

I USE IAR7.7 AND v11.0

THERE ARE ERRS.

FS_REGISTER_CFG(fs_config_t fs_config) = { .callback = fs_evt_handler, // Function for event callbacks. .num_pages = NUM_PAGES, // Number of physical flash pages required. .priority = 0xFE // Priority for flash usage. };

define FS_REGISTER_CFG(cfg_var) NRF_SECTION_VARS_ADD(fs_data, cfg_var)

#define ... (more)

8
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answers
Last activity 2017-04-28 05:49:35 +0200 by dbuijsma

Supervision timeout issue

I'm having a strange problem where the Supervision timeout does not seem to work right at the point the connection is initiated (sd_ble_gap_connect() was called but BLE_GAP_EVT_CONNECTED is not yet received). At any other point during the connection, it ... (more)

28
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answers
Last activity 2017-04-28 04:19:41 +0200 by MANGO

Measuring nRF52 based custom PCB's RSSI

Hi, I have created a custom PCB (FR4, 4-layered) which uses nRF52832-QFAA.

This PCB uses the λ/4 printed monopole antenna.

I wish to measure the RSSI value of this custom PCB.

I have iOS/Android phone which has nRF ... (more)

12
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answers
Last activity 2017-04-28 01:17:42 +0200 by c cook

nRF Connect v1.1.1 not updating MfgSpecData

I'm using SDK 12.2, and nRF Connect on a Windows machine. I started with the ble_uart example.

I need to send data in my advertising packets. In advertising_init() I initialize advdata.p_manuf_specific_data with my data, and start advertising ... (more)

46
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no
votes
2
answers
Last activity 2017-04-27 23:43:20 +0200 by Jay Tyzzer

nrfgo studio doesn't see my custom board

Hello all,

I am trying to program my custom board using the debug out from the nrf51-DK. I connect all the needed pins and on the nrfgo select the Segger but when I do this my nrf51-DK resets and it ... (more)

27
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2
votes
1
answer
Last activity 2017-04-27 23:23:50 +0200 by Mike W flag of United States

Fanstel BC832 (nRF52832 module) Dev Kit not detected over USB.

Hi everyone,

First post here, so apologies in advance for lowly questions!

I have a Fanstel EV-BC832 dev kit for their BC832 module, which uses the 516K Flash / 64K RAM flavor of the nRF52832.

It is not detected over USB ... (more)

24
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answers
Last activity 2017-04-27 23:09:16 +0200 by Pepijn

nrf_block_dev_sdc.h c++ compability

Hi,

A project I'm working on can be seen as a collector of data from many different sources. To keep I an overview I've decided to use C++ objects rather than C (in other words: a C++ project ... (more)

353
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4
votes
2
answers
Last activity 2017-04-27 22:35:56 +0200 by Dennis German

BLE Driver Linux on Mac OS X?

Any possibility of porting the BLE GATT/GAP Driver to OS X? I'd love to run testing there using phyton...

37
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no
votes
2
answers
Last activity 2017-04-27 20:47:19 +0200 by Wojtek flag of Poland

I want consistent timing of S132 nus packets

I have an application where I read a IMU at around 60 - 80 hertz.

How should I configure the S132 so I can send my 14 byte string packet with a constant time interval?

I need the packet to be ... (more)

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  • Latest user: Andre Goodman
  • Resolved questions: 9208
  • Unanswered questions: 2543
  • Total questions: 21737