DFU dfu genpkg Issue

RE: DFU dfu genpkg Issue

Lucas — Wed, 10 Jun 2015 17:03:48 GMT

All good when working with the hex files rather then binary.

RE: DFU dfu genpkg Issue

Øyvind Karlsen — Wed, 10 Jun 2015 07:48:59 GMT

Essentially, yes.

RE: DFU dfu genpkg Issue

Lucas — Tue, 09 Jun 2015 19:55:56 GMT

Will the nrftool now do the hex->binary conversion for us removing the MBR from SD and unneeded lines in the bootloader? I am confused.

RE: DFU dfu genpkg Issue

Lucas — Tue, 09 Jun 2015 17:50:38 GMT

Ok so the issue appears to be a size thing. My hex file for the bootloader is the proper size and works with a program it using the J-link. However, when I convert the bootloader file from hex to binary it increases in size. I'm using hex2bin to do the conversion. The document you posted appears to have a solution. Thank you.

RE: DFU dfu genpkg Issue

Lucas — Tue, 09 Jun 2015 17:49:27 GMT

I didn't realize the script could work with hex files I thought it only supported .bin

RE: DFU dfu genpkg Issue

Øyvind Karlsen — Tue, 09 Jun 2015 07:25:30 GMT

Hi Lucas,

In the provided screenshot you have forgotten to add the application version and the bootloader part(or maybe the screenshot has been cropped somehow, if so please provide a new screenshot).

The zip can contain multiple files, but there are some limitiations. One of them is size constraint, see the calculations in this post to get a better idea on the order of magnitudes. nrf.exe lets you create files that are too large to perform DFU, this is not related to your current problem, but it's nice to have in mind.

Finally there is also a git repository with a thorough guide on How to generate the INIT file for DFU. Here you can see that nrf.exe also supports .hex files as testy said.

RE: DFU dfu genpkg Issue

testy — Tue, 09 Jun 2015 05:20:54 GMT

Try to use Intelhex input files application_nrf51822_xxac.hex, bootloader_nrf51822_xxac.hex instead of binaries.