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Last activity 2017-03-30 22:31:07 +0100 by aras flag of Canada

Concurrent peripheral and advertising s110

Our nRF51822, S110 device uses concurrent advertising (iBeacons) when connected to the central. Our customer would like to have a variable tx power on the advertising packets only. Is there any way we could do this?

12
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1
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Last activity 2017-03-30 13:37:55 +0100 by Jørgen Holmefjord flag of Norway

nrf51822 gpio

hi,

i have two nrf51822 beacons in which one would send data to other over ble.how can i make nrf51822 as central.what are the modifications should i do to make it central.will existing central examples work?

thank you

17
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1
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1
answer
Last activity 2017-03-30 09:54:45 +0100 by Sigurd flag of Norway

How to set up for EN 300 328 V2.1.1 Rx RF Blocking test

Hi All,

Has anyone had to go through the new Rx RF Blocking test specified in the new version of EN 300 328? It seem all products shipped to the EU after June 2017 need to pass this test also ... (more)

21
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1
answer
Last activity 2017-03-30 08:56:04 +0100 by Jørgen Holmefjord flag of Norway

Difference Between "nrf_drv_adc_buffer_convert" & "nrf_drv_adc_sample_convert"

Hi,

I am newbie to Nordic and I am building a program that samples adc value. I just wanna know about the difference between two functions "nrf_drv_adc_buffer_convert"and "nrf_drv_adc_sample_convert".

How is the usage different?

(I'm using SDK11)

Thanks!

29
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1
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2
answers
Last activity 2017-03-30 06:46:52 +0100 by allankliu

Regards compatibilities of demo code in different SDK ? [closed]

As a small team, we have to find silicons from retell market. Sometimes even the trader can not promise its source and batch. Here is a small list of nRF51822 available from the market.

nRF51822-QFAAC0-1311AH
nRF51822-QFAAC0-1322AY
nRF51822-QFABA0-1326AW
-------------------------
nRF51822-QFAAG3-1438AU
-------------------------
nRF51822-QFAAH0-1517DF
nRF51822-QFAAH0-1512BX ...
(more)

71
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no
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2
answers
Last activity 2017-03-29 21:46:24 +0100 by Enrique

nRF 52832 first time programming

Hi, I'm designing a new PCB using nRF52832 and I'm wondering what is the way to programm it for the first time. I'm connecting pins 25 (SWDCLK), 24 (SWDIO), 31(VSS to GND) and 36 (VDD) to ... (more)

18
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answers
Last activity 2017-03-29 17:42:04 +0100 by neosarchizo

I can flash in nRF51822-EK but it's not working

I use mac os x sierra on MacBook pro 2016. And I followed this link.

I took following things in order.

  1. I moved gcc-arm-none-eabi-5_4-2016q3 to /usr/local/gcc-arm-none-eabi-5_4-2016q3

  2. I moved nRF51_SDK_10.0.0_dc26b5e to ~/Library/Nordic/nRF51_SDK_10.0.0_dc26b5e

  3. I ...

(more)

27
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1
answer
Last activity 2017-03-29 15:49:38 +0100 by John DeWitt flag of United States

nrf51822 TX bytes not back to back at 12K8 or 38K4 baud

We have a nrf51822 device that has to send 6 bytes back to back at 12K8 and 6-18 bytes at 38K4 in the future.

The bytes are in an array and do not need to be generated anymore.

Since the ... (more)

133
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1
vote
1
answer
Last activity 2017-03-29 13:31:18 +0100 by endnode

Beacon scenario

Hi,

I wanted to know that if I have e.g. 10 beacons placed in the super market. Let say I am in the meat section and there are three beacons among which I am close to one and little ... (more)

31
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2
votes
1
answer
Last activity 2017-03-29 11:01:22 +0100 by Hung Bui

how can i establish communication between two nrf51822 modules ?

i m having data in the form of high and low states from one nrf51822 module and want to send it to another same module.

40
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answers
Last activity 2017-03-29 10:55:50 +0100 by Usman

Connecting Old nokia 3310 to NRF52

Hi,

I want to connect old nokia 3310 to NRF52 DK.

Please let me know if any one has information about it?

Based on my research old nokia phone uses M bus and F bus communication protocol so then how ... (more)

116
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1
answer
Last activity 2017-03-29 09:08:41 +0100 by Nilesh Bhavsar

How to generate init file(*Dat) for secure DFU OTA update?

Hi;

I am trying to secure DFU OTA. For that, i am using SDK12.2.0 and done with example file.

Now how to generate this .dat file itself.

Also explain each parameter of init file and how to set it.

30
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1
vote
1
answer
Last activity 2017-03-29 08:50:50 +0100 by Kristin flag of Norway

nRF51822 Dev Kit works but the PCB doesn't. How can I fix it?

I am working on a project for college in which I need to build my own PCB. The code works fine on the Dev Kit but on the PCB, the bluetooth is not showing. I have tried looking up as ... (more)

29
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1
vote
2
answers
Last activity 2017-03-29 07:37:00 +0100 by shravani

nrf51822 gpio program

hi

i am using two dongles.one would be sending sensor data from gpio to other through ble.i need a example code for those two.could you please tell me which example i can use?

thank you in advance

42
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1
vote
1
answer
Last activity 2017-03-29 06:15:10 +0100 by KETAN_PATEL

what is mean by SoftDevice S130 v1.0.0??? [closed]

is that any requirement of soft devices in if i want to communicate with nrf51822 module???

try to connect touch sensor with NRF51822 and it's gives output in form of 0 & 1 only. i want to send that data ... (more)

21
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no
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no
answers
Last activity 2017-03-28 15:11:40 +0100 by Sonr09

Problem with DFU bootloader SDK 11: when discover services in bootloader mode device resets

Hello!

I have problem with DFU bootloader on nRF51822-xxAA.

For first, I made all steps for upload bootloader(erase chip, upload SD s130, upload bootloader). I used example dual_bank_ble_s130 with small changes for my custom board (My board haven't ... (more)

17
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no
votes
1
answer
Last activity 2017-03-28 14:39:00 +0100 by Sigurd flag of Norway

NRF52 DK and beacon kit specifications

Hi,

I want to specifications of NRF52 chip and Beacon chip.

Specifications such as Tx power, operating temperature, storage temperature and other performance parameters.

Beacon kit, I think contains NRF51 chip.

82
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1
vote
1
answer
Last activity 2017-03-28 13:39:17 +0100 by Kristin flag of Norway

Using External 16MHz (help with code)

Hi all! I'm a beginner developer. I start my work with nrf51822, download examples e.t.c Now I try to download my code in real PCB with external 16MHz crystal. Code worked on a kit but doesnot work ... (more)

43
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no
votes
1
answer
Last activity 2017-03-28 13:17:37 +0100 by Kristin flag of Norway

nrf51822 advertising packet not detected

Hi,

I would like to ask your support for a very unusual problem that I'm facing with a project based on nrf51822.

The board under test is based on nrf51822, SDK12.1, softdevice S130. The nordic example used for ... (more)

16
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no
votes
1
answer
Last activity 2017-03-28 13:06:58 +0100 by Kristin flag of Norway

Test method of reciever blocking with Gazell mode

I will test the receiver blocking of ETSI with the nRF51822 module (EN300328 V2.1.1 2016-11 5.4.11 Receiver Blocking). However, please tell me the next items because I do not know the test method with Gazell mode ... (more)

20
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no
votes
1
answer
Last activity 2017-03-28 12:25:37 +0100 by endnode

Read/ write in twi- nrf51822

<Newbie> Hi, Can anybody give me an example about read/ write in twi- nrf51822 ?

I have slave address is 0x1B and i wanna read a register in it. Thank you !

10
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1
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answers
Last activity 2017-03-28 12:21:15 +0100 by allankliu

How to load hex to nRF51 with openocd ? [closed]

Due to limited budget, I have to use STLINK/V2 to flash code into nRF51822. I have been through steps of how to setup OpenOCD/STLINK/V2/nRF51822 in Ubuntu. After mass erase, I have to flash softdevice back to ... (more)

50
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no
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1
answer
Last activity 2017-03-28 11:57:13 +0100 by Hung Bui

Adding Multiple Presentation Format Descriptors

The Bluetooth specification states:

If more than one Characteristic Presentation Format declarations exist, in a characteristic definition, then a Characteristic Aggregate Format declaration shall exist as part of the characteristic definition

However, there doesn't seem to be any way ... (more)

68
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1
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no
answers
Last activity 2017-03-28 11:32:29 +0100 by Usman

NRF52 PCB design software selection

Hi,

We want to make PCB of NRF52 and we want to buy PCB design software.

Can you guide me that how many layers of PCB is required and how many pins will be required ?

We have two options

  1. 2000 ...
(more)

35
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3
votes
1
answer
Last activity 2017-03-28 09:56:55 +0100 by Prasad

HardFault_Handler() called when NRF_LOG_ENABLED is disabled

In my application when I disable NRF_LOG_ENABLED, HardFault_Handler() is getting called. To debug this issue I defined a HardFault_Handler() in my code and inserted a break point in it. Below is the backtrace

#0  HardFault_Handler () at main.c:165
#1 ...
(more)

24
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1
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no
answers
Last activity 2017-03-28 08:43:35 +0100 by zkshen

Can't connect when MIN_CONNECTION_INTERVAL=7.5ms

I'm trying to transmit from 52832 (slave) to 51822 (host) as fast as possible, so I set MIN_CONNECTION_INTERVAL=7.5ms and MAX_CONNECTION_INTERVAL=10ms. Then the device couldn't connect, and I can't figure out what's wrong with it.

16
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no
votes
1
answer
Last activity 2017-03-28 08:38:57 +0100 by Kristin flag of Norway

nrf_UART freeze when disconnect during sending message - nrf51822

Good afternoon all,

We have seen something with nrf51822 a little bit unusual that we can't explain and that maybe some of you have already experienced.

In main loop, we have a switch() and, depending on some external command ... (more)

33
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no
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no
answers
Last activity 2017-03-28 08:06:33 +0100 by iqbalpalemad

problem in analog read.........?

hai

i am using mbed to program my nrf51822. in my application i need to read two analog sensor values. i am using p5 and p6 pin for that.

 AnalogIn   analog_pin_1(p5);
 AnalogIn   analog_pin_2(p6);

now i have a periodic ... (more)

17
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no
votes
1
answer
Last activity 2017-03-28 07:21:37 +0100 by zkshen

NRF_LOG_INF didn't show in RTT

I use SDK12.2, and I have enabled NRF_LOG_BACKEND_SERIAL_USES_RTT and NRF_LOG_ENABLED. But there was nothing show in J-link RTT and don't know why.

24
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no
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no
answers
Last activity 2017-03-27 16:17:29 +0100 by mukesh

How to do pstorage operations in app_timer event handler?

I want to write pstorage functions in app_timer event handler. The reason is that, I want to poll certain events using the app_timer. This things I cannot do in main thread since it has some blocking codes that cannot be ... (more)

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