24,486 questions

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)

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)

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)

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)

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)

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)

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)

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 ...

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)

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)

using the nrfGoStudio to program s110_nrf51822_6.0.0_softdevice.hex

Tools: Jlink,SWD mode as the figure:

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)

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)

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 ...

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)

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)

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 ...

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)

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)

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)

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)

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 ...

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)

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)

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)