NaxdyOrg/embassy
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embassy/examples/boot/README.md
Ulf Lilleengen ed2a87a262 Add embassy-boot 
Embassy-boot is a simple bootloader that works together with an
application to provide firmware update capabilities with a minimal risk.

The bootloader consists of a platform-independent part, which implements
the swap algorithm, and a platform-dependent part (currently only for
nRF) that provides addition functionality such as watchdog timers
softdevice support.
2022-02-09 10:50:29 +01:00

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Examples using bootloader

Example for nRF52 demonstrating the bootloader. The example consists of application binaries, 'a' which allows you to press a button to start the DFU process, and 'b' which is the updated application.

Prerequisites

  • cargo-binutils
  • cargo-flash
  • embassy-boot-nrf

Usage

# Flash bootloader
cargo flash --manifest-path ../../embassy-boot/nrf/Cargo.toml --release --features embassy-nrf/nrf52840 --chip nRF52840_xxAA
# Build 'b'
cargo build --release --features embassy-nrf/nrf52840 --bin b
# Generate binary for 'b'
cargo objcopy --release --features embassy-nrf/nrf52840 --bin b -- -O binary b.bin

Flash a (which includes b.bin)

cargo flash --release --features embassy-nrf/nrf52840 --bin a --chip nRF52840_xxAA