# 144 questions

Tagged
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24
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## nrf52840 device not available in IAR targed device list !

Hello,

I downloaded the recent SDK 14.2.0 and installed nRF5x_MDK_8_15_0_IAR_NordicLicense.msi included. When trying to load the ble_app_template in the dev kit I don't seem to find the nrf52840 device in the list under Nordic Semi device ... (more)

28
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1
vote
1

## Linker error Error[Lt009]: Inconsistent wchar_t size

Hi! I have download nRF5_SDK_14.1.0, and I have IAR Embedded Workbench IDE ARM 8.20.1

I want compile ble_app_eddystone.eww from examples, but have error:

Error[Lt009]: Inconsistent wchar_t size occ_lib_occ_curve25519.c.o(occ_lib_nrf52_iar.a) and 4 ...

(more)

41
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no
1

## Flash and debug application with signed bootloader in IAR or how to flash Bootloader Settings before debugging

I have a project which needs to be built in IAR, but uses the signed bootloader. I understand, that if I want to flash and debug the application from within IAR, I need to also write the Bootloader Settings page ... (more)

36
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1

## Save sensor data in external flash

Hi,

I am developing an application, in which I need to store the data collected from various sensors in external flash, in a particular format (Dataset no. - Sensor1 data--- Sensorn data).I am not using BLE or softdevice in my ... (more)

27
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## nrfutil.exe keys generate private.key failed to create process. [closed]

i have downloaded python (Python 2.7.13 (v2.7.13:a06454b1afa1, Dec 17 2016, 20:42:59) [MSC v.1500 32 bit (Intel)] on win32) on window 10 in cmd successfully. and pip also. i seccessfully done pip install ... (more)

22
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## how to done dfu in 10040 nrf52832 nRF5_SDK_14.0.0_3bcc1f7 iar [closed]

i am unable to do this as the documents are given in sdk 12 so how to do dfu in 10040 nrf52832 nRF5_SDK_14.0.0_3bcc1f7 iar in windows 10

46
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## nRF52832 flash erase problem:cannot erase the third page

Hi,

Now I test flashwrite example using nRF52832 with software version V12.2.0. I want to erase all memory pages with the code bellow:

for(pg_num=0;pg_num<=pg_total_num;pg_num++)
{
addr = (uint32_t *)(pg_size * pg_num);  //pg_size=4096 Bytes
flash_page_erase(addr ...
(more)

52
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Hi guys,

I am trying to interface nrf52832 with PMIC(BQ25121). I have earlier interfaced PMIC with nrf52832 successfully, and I am using the same code. However this time, I am getting NRF_TWI_ERROR_ADDRESS_NACK error.

I have looked over the error ... (more)

18
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## Debug mode is not working with IAR and nrf51822

Hi, I am using nrf51822 (pca10004) with SDK110 softdevice programmed through j-link LITE SEGGER. After programming the custom code (Basic I2C code) and when we try to debug the code, we are getting "Warning: T-bit of XPSR is 0 but ... (more)

34
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1

## nrf52832 DK PCA10040 ble cannot connect with linux (hcitool neither gatttool)

Hi,

I'm using Uart exemple to post data over BLE. Everything works fine as long as I'm connecting with my phone with BLE apps.

I would like to connect using a linux system to log data and execute ... (more)

50
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1
vote
1

## My sleep current is 20 micro Amps, How will I decrease to less consumption?

I am using power_manage function to keep low power sleep mode. And I used below peripherals in code, 1. SPI master, SPI master is disabling when ever I am not using. 2. Timer given in the example codes, i.e ... (more)

33
views
1
vote
1

## Issue Linking Nordic Memory Module with IAR

Hello,

I'm having issues linking the nordic memory module to my IAR project. Under the project options for the C compiler and assembler, I have included the appropriate directories for mem_manager.c and mem_manager.h. I have also added ... (more)

28
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## What is the reason behind to small power consumption peaks at every 6 milliseconds when CPU is in low power Sleep mode

When I am using power manage function to keep device low power mode, for every 6 milliseconds I am getting small spike of ~300 micro Amp and average current of 300 micro Amp for 400 micro Seconds. I attached images ... (more)

74
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1

## Call to memset crashes my application

When I am stepping through my application code crashing at

memset(&cccd_md, 0, sizeof(cccd_md));


"Setup information:

• IDE: Using IAR
• Device: nRF52832
• Soft device: S132 v 2.0.0
• SDK version: 11.0.0

Memory organisation:

ROM : 0x1c000 0x7ffff

RAM ... (more)

78
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2

## Measuring elapsed microseconds between 12 successive rising edges on 12 GPIOS on NRF52832 DK

Hi everyone,

I'm new with nrf52832, and I need to measure elapsed time in microsecond between rising edges of 12 different Gpios. I have 12 piezoelectric sensors filtered, amplified, getting a 0V-3.3V Logic level in input. Once one ... (more)

92
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## SPI External Flash Interface

Hi,

I am trying to interface external flash with the nrf52. I am able to read the device id. After writing to the status - configuration - bank address registers, I am able to read the register values.

But when I am ... (more)

68
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1

I'm having compilation error, and got a couple of errors similar to the examples below:

Error[Li005]: no definition for "sha256_desc" [referenced from C:\Users\........\_build\main.o]


and

Error[Li005]: no definition for "hash_memory" [referenced from C:\Users ...
(more)

44
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hello,

For now, I have to power cycle my board or manually send "nrfjprog -f NRF52 --reset" to start the application firmware after download. I would like the application to start automatically just after download.

Does any of you what ... (more)

83
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## ble communication in a separate C file

I would like to separate the BLE communication from the main.c and place it to a separate file. I followed the example of the default ble_app_template as well as nordic's services tutorial to create the BLE. It is ... (more)

1k
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1

## which pins of nRF52832 can support PWM and how many pins can support.

i need to connect 8 DC motors to it,using PWM channel.It is possible to connect with it

138
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1
vote
1

## What are the differences between IAR and GCC ?

Hi everyone !

We migrated a functional code from IAR to GCC compiler. But we got some trouble working it with GCC. The code compiles but it doesn't act properly with GCC(I use nRF UART for debugging, we didn ... (more)

77
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## Please create IAR project for a Bluetooth Mesh example [closed]

Would you like to create IAR project for a Bluetooth Mesh example !

Have a nice day.

44
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## How to make beacon connectable

Hi Nordic,

I am trying to implement DFU-OTA in beacon. For that I am trying to make beacon connectable. My requirement is to work the beacon in non-connectable mode during normal operation whereas for implementing DFU, I need to make ... (more)

321
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2

## IAR 8.11 - Issue when compiling ble_app_uart example

Hello,

I get two errors when compiling examples\ble_peripheral\ble_app_uart with IAR 8.11. I have ble_app_uart_pca10040_s132 - nrf52832_xxaa as the active project.

I get the following errors: Error[Pe235]: variable "__stdout" was declared with a never-completed type D:\Projects\Nordic ... (more)

65
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## Device not connecting after DFU OTA [closed]

Hi,

I am running the BLE DFU example. I am able to perform the DFU OTA implementation successfully. The problem I am facing is that, once the application has been updated successfully, the device gets disconnected and starts advertising with ... (more)

67
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1
vote
1

## Implementing DFU OTA for beacon

Hi Nordic,

I am trying to extend DFU feature to my beacon application. Please help me with how to go about it. I went through the given tutorials on DFU/OTA, but I haven't got a clear idea on ... (more)

76
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1

## how to convert IAR project file to KEIL uVision Project file?

Another programmer developed the nRF52832 source code using IAR. But I want to use Keil uVision.

So please tell me how to convert IAR project file to KEIL uVision Project file. please.

62
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1

## Problem with running BLE DFU example

Dear Nordic,

I am trying to run the BLE DFU example code. I followed the steps as instructed in the infocentre http://infocenter.nordicsemi.com/inde...

This is the way I followed your instructions, please correct me if I am ... (more)

267
views
1
vote
1

## Connection problems with Android 7 and SDK12.1

We have problems when connecting to a device running softdevice S132 version 3.0 with a tablet running Android 7.0.

When we use tablet and nRF Connect, we get Error 8 (0x8): GATT CONN TIMEOUT and Error 133 (0x85 ... (more)

42
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1
vote
no

## Have you used the IAR Simulator with nRF52?

Hi,

I'm trying to evaluate the IAR simulator, and I'm using it w/ nRF52 samples. Besides getting errors due to the errata and system init, I'm not sure what are the use cases for this simulator. If ... (more)

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