RE: nRF52810 OTA DFU v17

Vidar Berg — Fri, 08 Jan 2021 16:56:12 GMT

Glad to hear that it worked. Thank you for the update.

RE: nRF52810 OTA DFU v17

drewfowler17 — Fri, 08 Jan 2021 16:54:37 GMT

Vidar,

Thank you so much. The new pre-compiled bootloader worked first time.

And that is all I needed. Thank you for doing the work to help.

RE: nRF52810 OTA DFU v17

Vidar Berg — Fri, 08 Jan 2021 16:25:52 GMT

Hello,

1. The uECC library located in \external\micro-ecc must be downloaded and compiled from source as Hung explains in this blog post. I have, however, included this library pre-compiled in the attachment below, so you may skip this step.

You will also need to select the uECC library built for GCC to get the correct wchar_t size for IAR 8. Excerpt from SDK the release notes:

Note for IAR 8 users:
(Libraries for IAR 8 require wchar_t to be of size 32 bits while IAR 7 requires 16 bits).

To run a project using IAR 8, follow these intructions:
1. Open the IAR project in IAR 8. The IAR workbench will automatically generate an IAR 8 compatible project file.
2. If the project contains one of the precompiled libraries listed below, replace it
    with the IAR 8 compatible alternative (there are no projects targeting nRF51 in this SDK).
3. Save the project.
4. When building the project, you might get the warning: "The header file 'cmsis_iar.h' is obsolete and should not be used. [...]".
    - The problem is described in DevZone post: devzone.nordicsemi.com/.../iar-ewarm-8-22-1-complains-about-cmsis_iar-h
      The solution is to remove all occurrences of #include <cmsis_iar.h>.

The affected libraries are:
- micro-ecc crypto:
    - IAR7: Includes library located in the folder named “…_iar\…”.
    - IAR8: Switch to using the library from the folder named “…_armgcc\…”.
- nrf_cc310, nrf_cc310_bl, and nrf_oberon:
    - IAR7: Link to a library where “short_wchar” is part of the folder name.
    - IAR8: Link to a library without “short_wchar” in the folder name.
- Gazell, NFC Tag, and 802.15.4:
    - IAR7: Includes the library where the file name ends with “_iar”.
    - IAR8: Switch to using the library with similar file name that ends with “_gcc”.

2. The case you linked to is quite old, so I made a new pre-compiled bootloader and dfu_package you can test with instead, please see attached.

devzone.nordicsemi.com/.../nRF5_5F00_SDK_5F00_17.0.2_5F00_d674dde_5F00_mod.zip

The pre-compiled bootloader is placed in the following path : nRF5_SDK_17.0.2_d674dde_mod\examples\dfu\secure_bootloader_w_softdevice.hex and the DFU test zip is placed in nRF5_SDK_17.0.2_d674dde_mod\examples\dfu\secure_dfu_test_images\app_dfu_pkg.zip