# 22,463 questions

36
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## SAADC,NRF52832,How to calculata accurate sampling interval

void saadc_init(void)
{

// Configure the SAADC channel with AIN0 (P0.02) as positive input, no negative input(single ended).

NRF_SAADC->CH ...
(more)

23
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no
1

## Throughput of ble_app_uart

Hi,

I plan to design a system of 51822 that includes 1 center and 2 devices. And 8K Bytes data should be transmited from each device to the center per second simultaneously.

I used ble_app_uart demo to test the throughput ... (more)

30
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## Problem logging into Nordic site

Is there a problem logging into Nordic site ?

I have tried resetting my password and it doesn't seem to work. Had posted a question in the this thread earlier

49
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## [nrf52832][S132 4.0.2] application can not start normally in merged hex (SD+APP+BL)

I am beginner of 52832. Current software is based S132 4.0.2 and SDK 13.0.0. Test platform is based on PCA10040.0

My problem is application can not start normally in merged hex. Merged hex means softdevice ... (more)

49
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1

Hello, I want to know about the, can nrf5188 via a serial port upgrade program

20
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## S132 v4.0.2 - How to disable DLE or force LL_UNKNOWN_RSP?

Using S132 v4.0.2, is it possible to disable DLE (i.e. make it NOT set the LE Data Packet Length Extension used bit in the LL_FEATURE_RSP)?

Alternatively, is there a way to force S132 v4.0.2 to ... (more)

51
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Hello, I am using nrf52 with sdk 13.0.0. Bootloader_secure_ble gives error while compiling. What should I do ?

        Error[Lt009]: Inconsistent wchar_t size
micro_ecc_lib_uECC.c.o(micro_ecc_lib_nrf52.a) has wchar_t size 16 bits
app_error_weak.o and 66 other objects ...
(more)

52
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## How to reduce the RAM requirement of the SoftDevice

Hi, All!

I am using nRF51822QFAA with 16KB ram, and S130(sdk 11) for the dual bank bootloader, reference to the s130 releasenote, I config the ram memory start at 0x200013d0, length 0x2c30 for my application.

Because I use the ... (more)

31
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## packets out of order nRF24L0+

Hi, I am wondering why, sometimes, I get an odd packet out of order on the receiver. It is very random, it can occur at anytime, though usually it takes a minute or two. Testing shows that it does not ... (more)

10
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## nRF24L0 packets out of order [closed]

Hi, I am using a two nRF24L0+'s.

One for TX and one for RX. Transmitting in one direction only. There is sometimes a packet arriving out of order. Every minute or two. for example the 14th packet will come ... (more)

27
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1
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1

Hello,

I'm writing an application that uses the SAADC and would like to set up a high limit to trigger on.

If I use the following code, I'm able to trigger 1 ADC sample successfully:

errCode = nrf_drv_saadc_buffer_convert( &adcValue ...
(more)

34
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## SDK13 and NRF_SD_BLE_API_VERSION

Hi all,

I was trying to test the SDK13 ble_connectivity example being able to compile it when the NRF_SD_BLE_API_VERSION == 4, but it seems like there are not pc-ble-driver API available to deal with.

If I change the NRF_SD_BLE_API_VERSION == 3 it ... (more)

14
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Hello,

I have a nrf51DK board with the following setup in my Ubuntu14.04 machine:

\$ nrfjprog -v

nrfjprog version: 9.4.0

When trying to program through Segger, I keep getting the following error:

ERROR ...

(more)

55
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1

## [MCP] How can "BLE_GAP_EVT_SEC_INFO_REQUEST" occur? [closed]

Hi.

Using PCApp/MCP(v 3.10.0.14), How can "BLE_GAP_EVT_SEC_INFO_REQUEST" occur?

Or will not it occur?

If it occurs, please tell me how to do it.

Thank.

35
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1

## how to enable and disable softdevice s110 as based my customization

hi, i need to do long process and more flow of functionality that all could stopped by softdevice. so i need to enable and disable soft device. could it could affect my timer2, RTC1,UART0,Pstorage_nosd.c?

25
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## pstorage erase and read and write with sofdevice issue

hi

here i have use block size 16 byte and block count 5096. this is my start address 0x27000

i have tried to clear 79 pages.

and read data from flash with specific block.

write data to flash memory.

it ... (more)

24
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1

## NRF52832-CIAA-R7 symbol & footprint

Hi ,

Where can I find NRF52832-CIAA-R7 footprint & symbol?

62
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1
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2

## Ideas of why this may happen? printf makes my code work o.O

Hello to all

I have the next code, basically what it does is reading a button state and if it is pressed then the manufacturer data of the BLE package is lets say B, on the contrary when the button ... (more)

48
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1
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2

## Always reconnect after peers deleted

Hi community,

I'm working on a BLE gamepad with custom board based on 51802 and s130, code modified from ble_app_hids_keyboard. The gamepad works like a charm on my Android phone, but I found there's a strange problem with ... (more)

72
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1
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1

## How to get more output to PC (nrf52832)

I use ESB sample code ,change to do 8k sample rate ADC(10bit) and transport by ESB ,but overflow when output receive data to PC use uart at UARTE_BAUDRATE_BAUDRATE_Baud1M. All my data is about 16KB/s,Is there somthing wrong ?

22
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## what does the 0x40000000 error of sd_app_evt_wait() mean?

I'm using FDS and define record_chunk.length_words 173. system waits for fds operation is finished and in the meanwhile, system sleeps using sd_app_wait(). Then, sd_app_evt_wait() returns 0x40000000. what does this mean?

void fstorage_upsert_data(user_data_t user_data, fds_record_desc_t * p_record_desc) {
NRF_LOG_RAW_INFO("fstorage_write_data ...
(more)

25
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1
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1

## NRF52 boot sequence problems when adding S132

I have been developing my application using gcc on an NRF52 by putting the text section at 0. This was convenient to get going quickly. We initially weren't going to launch with any BLE support but now we need ... (more)

56
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1

## nRF52840 availability

When will the nRF52840 be available for production ?

33
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2
1

## Wheare can I get nrf51 beacon Hardware files

Hi,

Could somebody share the schematic and board files of nrf51 beacon?

We are planning to make some changes. I don't intend to buy a beacon because I have already purchased two nrf51-DK and one nrf52-DK from Mouser. Or ... (more)

31
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1

## TIMER2 issue with soft device

i could not run timer2 with soft device,. if i start initiaize TIMER2 the bluetooth advertise has disabled. i need this timer to timeout my flow function. i think softdevice has stopped my function. my execution timeslot is high compare ... (more)

31
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1

## Contact through points in PCB layout

Hello,

I am designing a PCB layout using nRF52832, I want to make it as small as possible so I am considering to route all component tracks to another layer.

I want to put only components on top layer and ... (more)

15
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1

Hi folks,

I'm trying to write a program to check out a pair of nRF24L01p modules talking to each other, and I'm a bit confused about two aspects of initialisation: 1. Should you have the 'PWR_UP' bit in ... (more)

27
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no
1

## BLE application with multihop

We have a BLE application where we need hopping through nodes. I have shown below how it looks like. We don't want mesh network because we don't require node to node communication. So, in diagram, gateway wants to ... (more)

49
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1

## Re-work hints for QSPI flash on PCA10056

The design I'm working on will tentatively use "Original SPI" (like "Original Coke" ...), so I started cutting up the QSPI bridges to disconnect DIO2 and DIO3 (which are also other things ...) prior to pulling them up to Vcc.

Has ... (more)

12
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1

## BLE_ADV_EVT_IDLE or BLE_GAP_EVT_TIMEOUT == 0x1 B

hello, What is the difference between the next two events? On_ble_evt () BLE_GAP_EVT_TIMEOUT == 0x1 B On_adv_evt () BLE_ADV_EVT_IDLE

I can not understand well. With Adverstising timeout, on_ble_evt () (BLE_GAP_EVT_TIMEOUT == 0x1B ) Although it becomes effective, On_adv_evt () (BLE_ADV_EVT_IDLE) Even if I wait for you, it ... (more)

#### Statistics

• Total users: 20387
• Latest user: Debdasora
• Resolved questions: 9454
• Total questions: 22463

## Recent blog posts

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• ### Setting up Segger on a mac or pc and debug - step by step for humans

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Posted 2017-04-11 11:49:17 by Radosław Koppel
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