Keil

Keil MDK / C51 Build

Use this skill for Keil/uVision projects, including 8051/C51 projects and MDK projects. Prefer the bundled scripts instead of manually invoking UV4.exe.

Capabilities

• Scan a workspace for .uvproj, .uvprojx, and .uvmpw projects.
• Enumerate project Targets.
• Create or update a real project file when the user asks to develop firmware and no suitable project exists; prefer a vendor demo project as a template for C51 devices.
• Run build, rebuild, clean, or compatible flash.
• Parse the build log and return errors, warnings, HEX/AXF output paths, and metrics.
• Persist the last successful build in .embeddedskills/state.json for workflow reuse.

Configuration

Environment-level config is stored in this skill's config.json:

{
  "uv4_exe": "C:\\Keil_v5\\UV4\\UV4.exe",
  "operation_mode": 1
}

Workspace-level config lives in .embeddedskills/config.json:

{
  "keil": {
    "uv4_exe": "D:/Keil_v5/UV4/UV4.exe",
    "project": "path/to/project.uvproj",
    "target": "Target 1",
    "log_dir": ".embeddedskills/build"
  }
}

Parameter priority: CLI arguments > workspace config > skill config > .embeddedskills/state.json > scan result.

Commands

Scan projects:

python <skill_dir>\scripts\keil_project.py scan --root <workspace> --json

List Targets:

python <skill_dir>\scripts\keil_project.py targets --project <project> --json

Build:

python <skill_dir>\scripts\keil_build.py build `
  --project <project> `
  --target <target> `
  --workspace <workspace> `
  --json

Rebuild:

python <skill_dir>\scripts\keil_build.py rebuild `
  --project <project> `
  --target <target> `
  --workspace <workspace> `
  --json

Clean:

python <skill_dir>\scripts\keil_build.py clean `
  --project <project> `
  --target <target> `
  --workspace <workspace> `
  --json

Rules

• If multiple plausible projects or Targets exist, list candidates instead of guessing.
• Do not edit .uvproj, .uvprojx, .uvopt, or .uvoptx unless the user explicitly asks. If the user asks for firmware development/buildable embedded software and no project exists, treat creating a .uvproj/.uvprojx as part of the deliverable.
• Do not run clean implicitly before build unless the user asks for rebuild or --clean-first.
• After a successful build, report the project, target, log file, errors/warnings, and HEX/AXF paths.
• Treat flash as a compatibility entry. Prefer a dedicated J-Link/OpenOCD/probe workflow when available.
• For C51 projects, inspect the build log and map file when debugging interrupt vectors, missing source files, memory model, or startup issues.
• For vendor C51 libraries such as SinOne TKDriver, ensure the active project tree visibly includes the driver folder, headers/config files, .C files, and all required .LIB files. If a manual says to copy/export TKDriver into the target project, do not leave project paths pointing only to ..\TKDriver.

C51 Review

For 8051/C51 correctness problems, use the embedded firmware skill reference keil-c51-project-review.md if available. Check:

• Correct Target and HEX are being built/flashed.
• Startup file and interrupt vectors match the MCU.
• Vendor .C or library files are included in the Keil project.
• Vendor folder location matches the product project structure, especially for exported touch libraries.
• Code Option / clock settings match firmware constants.
• Memory model, reentrancy, and interrupt function declarations are compatible with C51.

C51 Project Creation Checklist

When creating a C51 .uvproj:

• Reuse a matching vendor demo .uvproj and STARTUP.A51 when available.
• Set the target name, output directory/name, HEX generation, include paths, and device clock.
• Use LX51 and Large memory model when vendor libraries require it.
• Put vendor driver folders such as TKDriver inside the target project directory when the manual says to migrate the folder there.
• Add visible groups for Startup, App, BSP, Drivers, and vendor libraries.
• Build/rebuild with keil_build.py and inspect the log/map to confirm the files used are the intended in-project files.