Changelog

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0.1.0 - 2026-10-31

Features

  • Numeric Function-Code Driven: API driven directly by numeric function codes (1..127), without hardcoding fixed operation atoms.
  • Universal Frame Model: Unified {slave, {fc, direction, width}, address, argument} frame tuple across all roles.
  • Modbus TCP:
    • Modbuv.Tcp.Client: Supports both passive (synchronous) and active (asynchronous event streaming) modes, stream MBAP deframing, unit ID validation, and stale response isolation.
    • Modbuv.Tcp.Server: Connection-per-handler architecture using DynamicSupervisor, in-memory shared data model, clean port collision stop, and active owner notifications.
  • Modbus RTU:
    • Modbuv.Rtu.Master: In-flight serialization with :busy protection, automatic response length derivation, and fault-tolerant UART I/O.
    • Modbuv.Rtu.Slave: Integrated with Circuits.UART.Framing, dynamic frame length derivation via fc_map, automatic sliding-window byte resync, and safe rx_framing_timeout merging.
  • Custom Function Codes (FcMap): Extensible registry supporting vendor function codes with customizable direction, width, address region, and single/multi write layout.
  • In-Memory Model & Shared Agent: Atomic multi-address writes, pure Modbuv.Model operations, and thread-safe Modbuv.Model.Shared Agent.
  • Helpers:
    • Modbuv.CRC: Fast, table-driven CRC16 calculation.
    • Modbuv.IEEE754: 32-bit and 64-bit float conversions with big-endian (:be) and little-endian (:le) word order support.
    • Comprehensive exception mapping covering standard codes (1..11) and vendor/zero codes.