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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)
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)
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:
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 ...
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)
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.
As above, Some part don't erase.
Below ... (more)
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)
printf("db_disc_handler [0x%x]\r ...
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.
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)
when i use nrf_drv_pwm_sequence_update/nrf_drv_pwm_simple_playback multiple ,it dont work well
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)
Hello everyone, I want to run project ble_uart on NRF52832 in Keil. At the beginning of the main.c I add
But get error C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_Examples\11.0.0-2.alpha\bsp\boards.h(44 ... (more)
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)
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)
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.
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)
Is there an example of using the nRF52's PWM module and BLE at the same time using SDK14 / GCC ?
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)
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)
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)
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)
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)
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)
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)
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)
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)
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 ...
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)
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)
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 ...
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:
In lwip\src\port\nrf_platform_port.c we changed ...