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3,803 questions

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Last activity 2017-12-13 10:01:18 +0200 by Mark.Thielen

app_timer / softdevice S132 / sd_app_evt_wait

Hi there,

hope you are doing fine.

I am using SDK 14.1 with SoftDevice 132 as well as a state machine framework which needs a have a function called periodically to manage events, timers, etc. I am NOT using ... (more)

13
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Last activity 2017-12-13 09:03:45 +0200 by ogura

nRF52832 Power on Reset and nRESET

in my circuit, it takes 17ms for VCC_NRF to go up from 0 to 1.7V and reach 3.0V, but nRESET PIN does NOT to go up to VCC_NRF. what is the potential cause of this problem?

here is ... (more)

13
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Last activity 2017-12-13 08:35:08 +0200 by XavierYin

Behavior when a single PPI channel triggers 2 timer tasks

nRF52832 / SDK 14.2 / SD5.1.0

There might be two configurations to setup a PPI channel to assign some peripheral event to both timer capture & clear task:

1.

nrf_drv_ppi_channel_assign(event, (uint32_t)&NRF_TIMERX->TASKS_CAPTURE[Y]);
nrf_drv_ppi_channel_fork_assign(event, (uint32_t)&NRF_TIMERX->TASKS_CLEAR ...
(more)

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Last activity 2017-12-13 08:29:12 +0200 by tyler

Where to put APP_TIMER_DEF without error or warning?

I am working on a project in Nordic SDK 8.1 that requires using a timer. I am confused where I need to define the timer though (using APP_TIMER_DEF). If I put it right after my #include statements I get ... (more)

9
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Last activity 2017-12-13 08:19:14 +0200 by Jim

adv_report.data reset(clear)

Hi,all.

I made observer with using ble_app_uart(central).

And, I transmit UUID with using uart.

Test result, I confirmed that the previous value of p_adv_report-> data was not erased.

캡처.PNG

As above, Some part don't erase.

Below ... (more)

9
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Last activity 2017-12-13 07:28:46 +0200 by Giang

Error run multi NUS

Hi all, I encountered a problem , when I connect 1 board central to 2 board peripheral via NUS . It connected and discovery success . But at

static void db_disc_handler(ble_db_discovery_evt_t * p_evt)

{

ble_nus_c_on_db_disc_evt(&m_ble_nus_c[p_evt->conn_handle], p_evt);

printf("db_disc_handler [0x%x]\r ...

(more)

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Last activity 2017-12-13 06:29:49 +0200 by Manoj Hiwarkar

Regarding MAX30101

I want to access max30101 through nrf51422. Is their any library available for that? if you provide that then it will be a great help.

15
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Last activity 2017-12-13 05:20:08 +0200 by coolboy

gyroscope services

hi team, i am using nrf52840. is there any hidden services placed in nrf connect app android for gyroscope or we want to create our own services. and also one doubt wat is the twi_scl and twi_sda pin for pca ... (more)

8
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Last activity 2017-12-13 04:56:39 +0200 by strengthstrong

nrf_drv_pwm_sequence_update

when i use nrf_drv_pwm_sequence_update/nrf_drv_pwm_simple_playback multiple ,it dont work well

17
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Last activity 2017-12-13 01:20:32 +0200 by zachtos

nrf52840 availability USA 12-12-17

Hello, we would like to consider this chip for a product, but I have been waiting for this to be on sale for purchase since February 2017. It's still 12 weeks out and it's nearly the end of ... (more)

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Last activity 2017-12-13 01:12:55 +0200 by masta

Board is not defined

Hello everyone, I want to run project ble_uart on NRF52832 in Keil. At the beginning of the main.c I add

define BOARD_NRF6310

But get error C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_Examples\11.0.0-2.alpha\bsp\boards.h(44 ... (more)

11
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Last activity 2017-12-13 00:05:52 +0200 by carlche

SDK 12.3.0 - connection parameter config got fatal error

Hi there,

Based on apple recommendation, I've chosen the next connection parameter set (and tested the parameter set works on other platform such as TI and Dialogue chip):

140 #define MIN_CONN_INTERVAL MSEC_TO_UNITS(1979, UNIT_1_25_MS) /**< Minimum acceptable connection interval (1 ... (more)

21
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Last activity 2017-12-13 00:09:00 +0200 by Eric Smith

S132 5.1.0 excessive RAM usage

From the S132 5.1.0 specification, I expect that its RAM usage should be only 0x1228 bytes plus ATTR_TAB_SIZE. However, when I compile two of the example projects using IAR, I'm seeing an APP_RAM_BASE higher than expected, in ... (more)

20
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Last activity 2017-12-12 21:14:03 +0200 by jublin

NRFUtil, Python3 support?

Are there any plans to support python3 for nrfutil? Python 2 will no longer recieve updates after 2020, and many packages are moving to python3 only.

16
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Last activity 2017-12-12 20:15:29 +0200 by QQ645116977

How to use the PC version of nRF Connect?

Im following the example Alert Notification Application and read this instruction:

#

In nRF Connect, create the Alert Notification Service (ANS) server by performing the following steps: In Server Setup, click the settings button and select "Load setup". In the resulting ... (more)

13
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Last activity 2017-12-12 20:05:19 +0200 by Wayne flag of United Kingdom

SDK14 nRF52 PWM module and BLE example?

Is there an example of using the nRF52's PWM module and BLE at the same time using SDK14 / GCC ?

13
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Last activity 2017-12-12 19:55:50 +0200 by Jim Dattolo

running SDK11 and want to jump to 12, where is migration doc?

I can't move higher than 12 as we still have builds for the NRF51.

I see migration sections for 13 and 14 in infocenter. I can't find anything for 12 and I do know that there are a ... (more)

12
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Last activity 2017-12-12 18:40:01 +0200 by shadowncs

nRF51422 SDK11 app_uart_fifo race condition and fix

Yet another app_uart_fifo question. I'm using SDK 11 with uVision. It is my expectation that, if using HW flow control and a FIFO to RX, no received characters should be dropped at all, under any conditions.

I've noticed ... (more)

21
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Last activity 2017-12-12 18:15:09 +0200 by yves

nRF52840 Engineering B PAN 186: How much increased current consumption

The engineering B errata mentions PAN 186, that the current consumption in System ON Idle is increased if High-Voltage mode is used. Is there any information available how strong this current increase is? That would help us deciding if we ... (more)

14
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Last activity 2017-12-12 17:54:58 +0200 by pktron

mesh adressing queries

Hello ,

Regarding to mesh I have few more queries as below,

There are two types Bearer using which we can provision & configure Bluetooth Mesh Devices 1) GATT 2) ADV

Current MESH SDK from Nordic Semiconductor only support ADV Bearer. And ... (more)

22
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Last activity 2017-12-12 17:25:41 +0200 by mantap

Is there any example code for Running Speed & Cadence Service using nRF Toolbox

I have a question about how to build RSC (Running Speed & Cadence Service) ? especially using mbed compiler because I just found CSC (Cycling Speed & Cadence Service). like this one CSC

anyone can help me? because I want make GUI like ... (more)

13
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Last activity 2017-12-12 16:31:14 +0200 by spizzak

Include app_config definitions in Makefile

I'm developing firmware for the nRF52832 in eclipse, and since I'm using the NFC pins as GPIOs I need to include the "CONFIG_NFCT_PINS_AS_GPIOS" cflag in my Makefile. However, I don't want to make this change on the ... (more)

17
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Last activity 2017-12-12 16:16:39 +0200 by Keton

[bugreport] app_timer_stop() resets RTC1 counter when APP_TIMER_KEEPS_RTC_ACTIVE is set

My setup is as follows: nRF5 SDK 13.1 with s132 5.1.0 nRF52832_AA Keil 5.25pre

I use RTC1 counter for timestamping along with app_timer timers. My get_timestamp() function retrieves it's time value by calling app_timer_cnt_get() and ... (more)

10
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Last activity 2017-12-12 16:13:13 +0200 by kbb64

multirole BLE_HCI_STATUS_CODE_LMP_RESPONSE_TIMEOUT errors

My setup: SDK14.0 (need to upgrade), using example multirole with 3 clients and 4 peripheral connections, along with mtu throughput added and lesc working and dual uart. (I need to add whitelisting also after I get past this problem ... (more)

17
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Last activity 2017-12-12 16:02:04 +0200 by butch

Better clock driver documentation

SDK 14.2 API References>Peripheral drivers>...>nrf_drv_clock_lfclk_request

The docs say "p_handler_item A pointer to the event handler structure."

It doesn't say here that the pointer can be NULL (although other discussion in the document, and examples, suggest it ... (more)

22
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Last activity 2017-12-12 17:53:10 +0200 by schoensn

nRF52840 Preview DK -> SPI Master MISO Problem

I want to connect a ST Chip (LSM6DSL - Datasheet) via SPI with the nRF52840 Preview DK (SDK13) - NRF_DRV_SPI_MODE_0

When I am using the SPI Master example with different pins:

#define SPI_MISO_PIN NRF_GPIO_PIN_MAP(0, 26)
#define SPI_MOSI_PIN NRF_GPIO_PIN_MAP(1, 8) 
#define ...
(more)

25
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Last activity 2017-12-12 14:58:37 +0200 by butch

Please provide more asserts in SDK libraries

It would be nice if libraries in the SDK contained more asserts about preconditions and postconditions. For example, since app_timer requires the lfclk running, the app_timer_init() implementation should assert that. Such asserts conventionally compile away if NDEBUG is defined.

You ... (more)

36
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Last activity 2017-12-12 14:38:58 +0200 by JB21

DCDC inductor arrangement ?

I have Rx sensitivity issues when DCDC is enabled

The 52832 datasheet shows these connection: DCC: 10 uH, DEC4: 15 nH

When switching both inductors I get better sensitivity DCC: 15 nH, DEC4: 10 uH

What purpose does 15 nH ... (more)

18
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Last activity 2017-12-12 14:32:43 +0200 by jackstraw

nrf52832 SDK13 PWM cant change duty cycle at first period

hello ,everyone

  i was confused by a PWM problem for a long time , on nrf52832 SDK13 ,i wanna change the PWM duty cycle every period ,but now i find can not change it at first period but is correct operate ...
(more)

9
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Last activity 2017-12-12 13:44:44 +0200 by Carl

[bug report] SDK 14.1: debug log lwIP

Hi @ all,

We tried to enable debug log for lwIP module by setting NRF_LWIP_DRIVER_CONFIG_LOG_ENABLED in sdk_config.h to 1.

This threw two errors during the build process which we solved as follows:

  1. In lwip\src\port\nrf_platform_port.c we changed ...

(more)

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  • Resolved questions: 11252
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  • Total questions: 27773