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24,486 questions

859
views
1
vote
1
answer
Last activity 2014-08-08 01:15:17 +0200 by RK flag of Singapore

app_timer_start error code 4 [closed]

What does error code 4 mean? I am looking through the documentation for the error code number to string translation.

Why is starting a timer causing the error code 4?

The timer is setup as follows, it was previous 10 ... (more)

401
views
no
votes
no
answers
Last activity 2014-08-07 23:46:39 +0200 by Marius R.

Secure DFU/OTA as good as possible to prevent copying my firmware

Hi Nordic,

I would like to re/program my device using a OTA BLE Bootloader but i don't want others to copy my firmware or at least make it very hard. As far as i know there is no ... (more)

569
views
no
votes
1
answer
Last activity 2014-08-07 21:40:10 +0200 by Ulrich Myhre flag of Norway

NRF_ERROR_SVC_HANDLER_MISSING

I'm seeing periodic disconnects with an iOS client application and the NRF_ERROR_SVC_HANDLER_MISSING which I gather may mean there is a compatibility problem with SDK and soft device. The error is reported from the device manager event handler.

I've ... (more)

311
views
no
votes
no
answers
Last activity 2014-08-07 20:32:12 +0200 by Anonymous

ancs bonding problems

After modifying the ancs example to remove the data and control points, the event_connect() subfunction in ble_ancs_c.c gets called immediatly upon a connection to a master. This happens before p_ancs->master_handle ever gets updated from invalid. As such the ... (more)

281
views
1
vote
1
answer
Last activity 2014-08-07 16:53:51 +0200 by Håkon Alseth

Debug ATSAM3U2C from nRF51822 mKit in Windows

Hello everyone!

Firs of all consider I'm very new in micro controllers programming/debugging, so your patience would be much appreciated.

I have a nRF51822 mKit like the one below and what I really need is to debug the ... (more)

122
views
no
votes
1
answer
Last activity 2014-08-07 15:14:49 +0200 by Vidar Berg

ble_lbs can´t find the device

hello,

i am trying to use the example for the ble_lbs from github. I get no erros on compile and flashing. But wenn i try to see the device in the master control panel there is no device. i don ... (more)

676
views
1
vote
1
answer
Last activity 2014-08-07 14:54:45 +0200 by Vidar Berg

linkerskript for s130 for gcc

Hi, i need to write a linker script for using S130 in my project. in the moment i don't want to use a boot loader so maybe some one can help me with the correct addresses. Did i understand ... (more)

431
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no
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no
answers
Last activity 2014-08-07 14:51:34 +0200 by almaz_1c

GATT client on s120 how to read characteristic value

I use multilink_central example and try get information about discivered service:

        APPL_LOG("[CLIENT_LOG]: Count of services: %d\r\n", p_client->srv_db.srv_count);
        APPL_LOG("[CLIENT_LOG]: Prim Serv id: %d\r\n", p_client->srv_db.services[0].srv_uuid.uuid);

        APPL_LOG("[CLIENT_LOG]:Prim handle ...
(more)

1k
views
no
votes
1
answer
Last activity 2014-08-07 14:42:20 +0200 by John DeWitt flag of United States

nrf gpio config

my led connect whit a pin like this: the led positive connect whit VCC and the negative connect whit a pin through a resistors.

when I config the pin as a output like this nrf_gpio_cfg_output(GREEN_LED_PIN_NO); but sometime s the ... (more)

96
views
no
votes
1
answer
Last activity 2014-08-07 14:19:58 +0200 by John DeWitt flag of United States

Help:breaks in slave node advertising

Hi All,

I need the slave node(S110) send advertising continuously and monitored by master node, so I set the advertising parameters as:

adv_params.type        = BLE_GAP_ADV_TYPE_ADV_NONCONN_IND;
adv_params.p_peer_addr = NULL;
adv_params.fp          = BLE_GAP_ADV_FP_ANY;
adv_params.interval    = 800;
adv_params.timeout     = 0;

The code ... (more)

417
views
no
votes
2
answers
Last activity 2014-08-07 13:43:28 +0200 by Håkon Alseth

nrfstudio softdevice

using the nrfGoStudio to program s110_nrf51822_6.0.0_softdevice.hex

Tools: Jlink,SWD mode as the figure: image description

but there are some problem

1:we can download demo BlinkLed and run it well! But we can not connect to device with nrfGoStudio ... (more)

169
views
no
votes
no
answers
Last activity 2014-08-07 11:40:10 +0200 by bruce

At first pairing, all pins are working. However, after power on/off and then re-connect the device, only the keyboard key is working. This situation is not always happen.

Using nRF51822, I define keys and pins as follows: 1. Keyboard key 2. Mouse left/right key 3. Mouse move (up/down/left/right) 4. Media play/pause key

Pin 0 Mouse Right Pin 1 Mouse Left and Mouse break ... (more)

503
views
2
votes
1
answer
Last activity 2014-08-07 10:37:05 +0200 by Wojtek flag of Poland

How do I give role(Master or Slave) to nRF51822-based BLE module ?

I would like to use nRF51822-based BLE module as Master role or Slave role. How do I give role(Master or Slave) to nRF51822-based BLE module ? What should I use ?

I ask for your consideration on this matter.

Sincelerly, t-kanda

1k
views
1
vote
no
answers
Last activity 2014-08-07 10:17:03 +0200 by Ulrich Myhre flag of Norway

write long characteristic

I am trying to implement write long characteristic between master control panel and PCA10001 board. here is my code

static void on_ble_evt(ble_evt_t * p_ble_evt)
{
uint32_t                         err_code;
static ble_gap_evt_auth_status_t m_auth_status;
ble_gap_enc_info_t *             p_enc_info;
ble_gatts_evt_write_t          * p_evt_write;
uint8_t                          inData;
uint16_t                         inDataLen;
uint8_t buffer[30 ...
(more)

293
views
no
votes
no
answers
Last activity 2014-08-07 07:10:33 +0200 by Johann

can Nrf905 communicate at 5v logic level with arduino ? or must it be 3.3v?

Hi I would like to know if it is possible to to run the Nrf905 chips on 5v logic level without damaging the chip ? i see many people playing with arduino and these chips but would just like to confirm the setup.

168
views
no
votes
1
answer
Last activity 2014-08-06 23:08:04 +0200 by wilhelmsen

nRF Toolbox supported devices list

Hi,

nRF Android Toolbox app supports BGM/BPM/HRM/CSC/HTM/RSC/CSC devices. Could anybody provide a device list with brand name which are supported by this app? For an example, can Wahoo HRM be connected to toolbox? I ... (more)

522
views
2
votes
2
answers
Last activity 2014-08-06 18:04:42 +0200 by random

nRF51822 Development Kit + noob

This is my first dive into low level programming (coming from iOS/Android dev background) and wanting to create something similar to the BlendMicro from RedBear Labs.

I'm doing this as a learning experience and want to be able ... (more)

723
views
5
votes
2
answers
Last activity 2014-08-06 16:53:56 +0200 by Wojtek flag of Poland

S110 v7 HVX notification bug

I am not sure, but i think we found bug or some interesting feature in sending notification values.

Here is the code i used:

uint32_t ble_meas_on_ext_adc_change(ble_meas_t * p_meas, uint32_t adcread){

uint32_t err_code = NRF_SUCCESS;
static uint8_t _sampling_counter;
if(adcread != p_meas->ext_adc_last_state ...
(more)

149
views
no
votes
2
answers
Last activity 2014-08-06 16:14:57 +0200 by max

Can the code run from the flash?

It is possible to run my code from the flash? i need more space in the RAM for my buffer [8k]

672
views
no
votes
1
answer
Last activity 2014-08-06 14:03:46 +0200 by Anonymous

Does s110 can receive mobile phone sound and translate sound to mobile phone?

Hi, I know s110 doesn't support HFP and HSP. So I want to know if there has a another way that nordic51822 can receive mobile phone sound and translate sound to mobile phone through s110.

202
views
no
votes
2
answers
Last activity 2014-08-06 13:07:04 +0200 by Elena

Can't debug LBS example, but yes HRS

Hi

Maybe this is a silly question, but I'm getting into desperation!!!

The problem is that playing with the LBS example (https://github.com/NordicSemiconducto...), I've noticed I can't debug it. Every time I set a breakpoint ... (more)

367
views
no
votes
1
answer
Last activity 2014-08-06 12:49:54 +0200 by dizzwold

nrf24l01 & gps

Has anyone sent GPS Latitude and Longitude with the nrf24l01 radios?

874
views
2
votes
2
answers
Last activity 2014-08-06 11:31:31 +0200 by Aashish Patel

Programming nRF51822 using UART/I2C

Hi,

We are using nRF51822 in our custom board.

nRF51822 is interfaced with a MCU using UART.

We want to load firmware image in MCU which will then flash nRF51822 via UART.

How to set nRF51822 in programming mode? what ... (more)

234
views
no
votes
1
answer
Last activity 2014-08-06 10:53:39 +0200 by David Edwin

BTLE Sniffer on nRF51822 Smart Beacon

Hi,

I have a nRF51822 Development Kit and a nRF51822 Bluetooth Smart Beacon Kit. I want to run on the nRF51822 Smart Beacon Kit the nRF-Sniffer (v1.0.1) application. The problem is that the UART use the CTS and ... (more)

111
views
no
votes
no
answers
Last activity 2014-08-06 10:40:08 +0200 by Justin

Strange app_button behaviour in SDK v6.0

Moving from SDK version 5.1 to 6.0, the buttons on my PCA20006 beacons no longer works as expected. When I press a button, it seems to register the release of a button incorrectly, even though I have modified ... (more)

445
views
-6
votes
2
answers
Last activity 2014-08-06 10:05:56 +0200 by kk

central send data to peripheral

how i used central send data to peripheral. one broad use S120and other broad use S110.Now i see explame is nrf51822\Board\nrf6310\s120\experimental\ble_app_hrs_c..have another explame??

498
views
2
votes
1
answer
Last activity 2014-08-06 09:19:50 +0200 by Pål Håland

Connected device address

In ble events handler after connecting to peripheral device i handle BLE_GAP_EVT_CONNECTED event and try to identity connected device:

    case BLE_GAP_EVT_CONNECTED:
    {
        err_code = sd_ble_gap_address_get(&dev_addr);                       
        if(err_code != NRF_SUCCESS)
            APPL_LOG("[APPL]: Getting address failed, reason %d\r\n", err_code);
        else
        {
            APPL_LOG("[APPL ...
(more)

379
views
no
votes
2
answers
Last activity 2014-08-06 08:48:59 +0200 by Matt

nrfjprog.exe error return code 8

Use "nrfjprog.exe --eraseall --programs s110_nrf51822_7.0.0_softdevice.hex --program app.hex bootloader.hex --verify --reset" to flash my device, return a error "write_and_verify_hex_file: return code 8". The device have been flashed more times successfully before, but suddenly have this ... (more)

417
views
3
votes
1
answer
Last activity 2014-08-06 05:36:07 +0200 by khoi.ndq

nRF518822 setup without nRFgo

As I've seen many others have done, I bought the nRF518822 Development Kit not seeing that I needed the $400 nRFgo motherboard.

Searching around reveals that shouldn't stop me from being able to still program for the chip ... (more)

956
views
no
votes
1
answer
Last activity 2014-08-05 23:40:10 +0200 by Steven L.

Loading S310 in nRF51422 + blinky program not working.

Hi Nordic-Team,

I've spent a while trying to figure this out but I couldn't. I need your help.

I want to load the S310 softdevice to the nRF51422 chip + the blinky example. Once I have that working I ... (more)

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