janik
56 lines
1.9 KiB
Markdown
56 lines
1.9 KiB
Markdown
# STM32 Pin Validator
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KiCad pcbnew action plugin that validates STM32 MCU pin assignments by comparing three sources:
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1. **PCB layout** - pad net names (via pcbnew API)
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2. **Schematic** - pin names and labels (parsed from `.kicad_sch`)
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3. **STM32CubeMX** - GPIO signals and labels (parsed from `.ioc`)
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Results are shown in a colour-coded table so mismatches are easy to spot.
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## Features
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- Colour-coded status: green (match), yellow (review), red (PCB/IOC only), grey (power)
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- Filter to show warnings only
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- Handles pin remapping and GPIO aliases (e.g. PA9/PA11)
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- Traces schematic wires to find connected labels (both local and global)
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- Normalises naming conventions (`+`/`P`, `-`/`M`, leading `/`)
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- Remembers previously used `.ioc` file paths
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## Installation
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### Manual
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Copy the contents of `plugins/` into a `stm32_pin_validator` folder inside your KiCad scripting plugins directory. The plugins directory location depends on your OS and KiCad version — you can find it in KiCad under **Preferences > Configure Paths** (look for `KICAD_USER_PLUGIN_DIR`).
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### KiCad PCM
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Search for "STM32 Pin Validator" in KiCad's Plugin and Content Manager.
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## Usage
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1. Open your PCB in KiCad pcbnew
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2. Click the STM32 Pin Validator toolbar button (or find it under **Tools > External Plugins**)
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3. Select the MCU footprint and browse to the matching `.ioc` file
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4. Review the results table
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## Status column
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| Status | Meaning |
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|--------|---------|
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| Match | Schematic label or PCB net matches IOC label/signal |
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| Review | Both sides have signals but names differ |
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| PCB Only | Pin connected in PCB but not configured in IOC |
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| IOC Only | Pin configured in IOC but unconnected in PCB |
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| NC | Not connected on either side |
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| Power | Power pin (VDD, VSS, etc.) - skipped |
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## Requirements
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- KiCad 9.0 or later
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- An STM32CubeMX `.ioc` file for the target MCU
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## License
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GPL-3.0-or-later
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