RP1210D Implementation in Zig

This project is a complete implementation of the RP1210D, the most recent revision of the RP1210 communications interface standard, written entirely in the Zig programming language.

The purpose of this project is to provide a native Zig library for developing diagnostic and reprogramming tools compatible with RP1210-compliant devices such as the Nexiq USB-Link, DrewLinQ, Dearborn DPA5, and others.

Features

• 🧩 Pure Zig codebase — no C or Windows headers required.
• ⚙️ Implements all RP1210D functions:
  • RP1210_ClientConnect
  • RP1210_ClientDisconnect
  • RP1210_SendMessage
  • RP1210_ReadMessage
  • RP1210_ReadVersion
  • RP1210_SendCommand
  • RP1210_GetHardwareStatus
  • RP1210_GetErrorMsg
• 🪟 Works with Windows .dll interface model.
• 🧪 Designed for robust unit testing and cross-platform support.
• 🔧 Can be used to build Zig-based diagnostic tools, logging systems, or reflashing utilities.

Why Zig?

Zig offers modern tooling, a simpler build system, and direct memory control, making it ideal for systems programming. Compared to C, it eliminates many of the pitfalls (like undefined behavior) and provides a more ergonomic developer experience.

Getting Started

Requirements

• Zig 0.15.0 or later
• Windows (for RP1210 DLLs)
• RP1210-compliant hardware and drivers

Build

zig build