Buttonless DFU with SES

[Sunil vignesh]

Hi,

I am using nRF52832 with sdk15.3 SES

I need to use DFU.

Buttonless DFU

need to program the controller without the wire connection.

Can you explain how DFU works and any tutorial or steps to follow to work with SES.

and need some examples to work on it.

[Carl Richard]

Hello, Sunil!

Take a look at this tutorial and its comments. It should cover what you're asking for! :) 

Best regards
Carl Richard

[Sunil vignesh]

Hi,

Thank you,

I will check the tutorial

[Carl Richard]

It's right that Python 2.7 will deprecate next January. My guess is that Nordic is already working on updating their software(including nrfutil) before that time arrives  

As for the next step I recommend that you continue following the guide I linked earlier, specifically the instructions in github repo.

Good luck!

[Sunil vignesh]

Hi,

I am not able to make

micro_ecc_lib_nrf52.a

how to create this..

[Sunil vignesh]

Hi,

I have created the micro_ecc_lib_nrf52.a

using minGW

Can you tell me. the step i followed is ok or not ?

1. Downloaded and Install GNU Arm Embedded Toolchain latest version : here

2. changed the GNU_INSTALL_ROOT and GNU_VERSION

   like this

3. Download and and unzip the micro-ecc folder

in

4. Execute msys.bat file from C:\MinGW\msys\1.0

5. moved to my folder ,in my case

cd /f/1.nRF52/nRF5_SDK_current/external/micro-ecc/nrf52hf_armgcc/armgcc/ 

make

the file has created

Now I build the secure folder example my case

F:\1.nRF52\nRF5_SDK_current\examples\dfu\secure_bootloader\pca10040_ble\ses

[Sunil vignesh]

and now its throw me an error

C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.18/gcc/arm-none-eabi/bin/ld: cannot open linker script file nrf_common.ld: No such file or directory

[bjorn-spockeli]

Can you open the C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.18/gcc/arm-none-eabi/bin/ld directory and check if there is a nrf_common.ld file there?