flutter_ymodem_lib 0.0.2 copy "flutter_ymodem_lib: ^0.0.2" to clipboard
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Published 31 days ago
SDKFlutter
PlatformAndroidiOSLinuxmacOSWindows
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Metadata

A pure Dart YModem file transfer protocol for Flutter: zero native code on Android, iOS, Windows, macOS and Linux. Perfect for BLE OTA firmware upgrades.

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0.0.2 #

  • Add the crcTrailingZeros option (engine, packet builders and Crc16.calc): 0 (default) uses the standard CRC-16/XMODEM as the Android reference library, 2 replicates the Cccal_CRC16 CRC variant of the iOS library YModemlib_iOS, required by the bootloader firmware of some devices.
  • Improve pub.flutter-io.cn metadata: add homepage / repository, shorten the package description.
  • Use package: imports in lib/ (Dart file conventions).

0.0.1 #

  • Initial release.
  • Pure Dart YModem sender engine ported from YModemlib_Android:
    • hello handshake, package 0 (file name / size / MD5), 128 (SOH) and 1024 (STX) data packages, EOT and final package handshake, MD5_OK / MD5_ERR support;
    • CRC-16/XMODEM (big-endian in the frame), plus an optional crcTrailingZeros: 2 variant compatible with the iOS library YModemlib_iOS (Cccal_CRC16);
    • automatic retransmission on NAK / timeout, CAN handling, stop() cancellation;
    • split BLE notification responses (ACK + C, split MD5_OK).
  • Streaming YModemSource with YModemFileSource and YModemBytesSource implementations.
  • Registered as a Dart-only plugin for Android, iOS, Windows, macOS and Linux (zero native code).
  • Full example app for all five platforms with flutter_blue_plus (2.3.12, Windows backend flutter_blue_plus_winrt 0.0.20), file picking, MTU negotiation, chunked writes and a live protocol log.
  • Unit tests: CRC vectors, package layout, end-to-end transfers against a fake receiver, retries, timeout and cancellation.

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Metadata

A pure Dart YModem file transfer protocol for Flutter: zero native code on Android, iOS, Windows, macOS and Linux. Perfect for BLE OTA firmware upgrades.

Repository (GitHub)
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Topics

#ymodem #ble #bluetooth #ota #firmware

License

MIT (license)

Dependencies

flutter

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