pinetime-rust-mcuboot

WIP demo project for pure rust playing nicely with MCUBoot/Infinitime OTA

Firmware Behavior

This is an example project so I just have the button controlling the LCD brightness. It doesn't even pet the watchdog so the processor reset after a few seconds.

Usage

Build the firmware

cargo xtask build

Build and flash the firmware

Requires cargo-flash.

cargo xtask flash

OTA update

The DFU update zip can be found next to the firmware binary after building. It can be flashed using Infinitime, other MCUboot-based firmware, or the Infinitime-based recovery firmware built into the newer bootloader version(s?):

• When booting, hold down the button.
• Wait for acorn to turn red.
• Release button.
• Wait for another boot cycle and for the Infinitime logo to appear.
• Connect and flash as normal.

Not working

• Additionally configurability and better error reporting for the xtask scripts (they also need some cleaning up).
• cargo-embed - it does not yet appear to support pre-generated artifacts, I'm planning to submit a PR
• probe-rs' vscode plugin - nondescriptive error occurs, I haven't yet dug into that.