• SDK Version: v0.1.0
• Target OS/Platform: Modus Toolbox
• Hardware Target: CY8CPROTO-062-4343W
• Host OS: Ubuntu 22.04.1 LTS

Current Behavior

When running the Golioth example project and testing firmware update, there is an error reported after the image is downloaded:

boot_set_pending failed, error -1

From https://github.com/golioth/golioth-firmware-sdk/blob/main/port/modus_toolbox/fw_update_mcuboot.c#L105.

Digging into MCUboot (v1.8.1-cypress tag), it appears that it's failing to write the image trailer due to a flash alignment problem:

https://github.com/mcu-tools/mcuboot/blob/v1.8.1-cypress/boot/bootutil/src/bootutil_public.c#L348-L355

From what I can tell, this is the same issue as reported here:

mcu-tools/mcuboot#713

The firmware update proceeds normally, despite the error using strategy MCUBOOT_OVERWRITE_ONLY. However, it prevents other desirable strategies such as MCUBOOT_SWAP_USING_SCRATCH from working since the image trailers cannot be written.

Expected Behavior

The error should not happen. MCUboot needs to support the 512-byte alignment restriction of the PSOC6 board so that image trailers can be written.

Steps to Reproduce

Attempt a device firmware update with Golioth, and you will see boot_set_pending failed, error -1 after downloading the image.

Logs, Additional Data

N/A