A native Rust implementation of a flash utility for WinnerMicro MCUs (W800/W801 family), including the DSO3D12 oscilloscope.

Based on the reference Python tool from the WinnerMicro IoT SDK: https://github.com/winnermicro/wm_iot_sdk/tree/master

• Auto-detects the highest supported baud rate (up to 2 Mbps)
• XMODEM-1K protocol with CRC-16 verification
• Progress bar with ETA during flashing
• Lists available serial ports with USB product info
• Optional flash erase before writing
• DTR/RTS-based automatic device reset

• Rust toolchain (stable, 2021 edition or later)
• A USB-to-serial adapter connected to the target device (or integrated one)

cargo build --release

The binary is produced at target/release/flash.

./target/release/flash -l

Auto-selects the port and negotiates the highest available baud rate:

./target/release/flash -i dso3d12_v3.0.6_III.fls

Specify the port explicitly:

./target/release/flash -p /dev/tty.usbserial-1110 -i dso3d12_v3.0.6_III.fls

Flash multiple images in one pass:

./target/release/flash -p /dev/tty.usbserial-1110 \
    -i bootloader.fls -i app.fls

./target/release/flash -p /dev/tty.usbserial-1110 -e

./target/release/flash -p /dev/tty.usbserial-1110 -e -i firmware.fls

Supported rates: 2000000, 1000000, 921600, 460800, 115200.

./target/release/flash -p /dev/tty.usbserial-1110 -b 460800 -i firmware.fls

1. Connect the supplied USB cable to your PC while the oscilloscope is powered off.
2. Press and hold the power button. The scope may enter a power-cycling loop — keep the button held down continuously until flashing reaches 100%.
3. The tool resets the device automatically via DTR/RTS. Use -m / --manual-reset to suppress the automatic reboot after flashing.

Flash tool for Winner Micro MCU

Usage: flash [OPTIONS]

Options:
  -p, --port <PORT>          serial port
  -b, --baudrate <BAUDRATE>  serial baudrate
  -i, --image <IMAGE>        image file paths (repeatable)
  -n, --name <NAME>          firmware names to burn. Ex: app,bootloader,partition_table,custom...
  -e, --erase                erase device flash
  -l, --list                 list serial ports
  -m, --manual-reset         skip automatic reboot after burning
  -h, --help                 Print help
  -V, --version              Print version

Repository: https://github.com/rssdev10/wm-tools

cargo test --workspace

cargo clippy --workspace