# PSG5 Diagnostic Bluetooth Tool – STM32H5

Embedded diagnostic and communication tool for PSG5 diesel injection control units, built on **STM32H5** with **Bluetooth connectivity**.

This project is part of the Herlic Components diagnostic and control platform, focused on reliable communication, testing, and service workflows for professional diesel ECU environments.

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## Overview

This firmware implements a Bluetooth-enabled diagnostic interface designed to communicate with PSG5-based ECUs and associated workshop tools.

Main goals of the project:

- Reliable **Bluetooth communication interface**
- Fast and deterministic **embedded real-time firmware**
- Robust **diagnostic protocol handling**
- Safe **PSG5 communication and validation**
- Expandable architecture for future diagnostic services
- Secure migration path toward STM32H5 platform

The system is intended for professional workshop and development environments.

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## Hardware Platform

- **MCU:** STM32H5 series
- **IDE:** STM32CubeIDE / STM32CubeMX
- **Communication:** Bluetooth UART bridge
- **Debug:** ST-Link / SWD
- **Power:** Automotive 12V environment with regulated rails

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## Project Structure

```text
bpdt-repo/
├── Firmware/               # Application code
├── Hardware/               # KiCad project files
├── Docs/                   # Documentation (Protocol, Instructions, Images...)
├── Production/             # Ready files

└── README.md

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Main Features

• Bluetooth communication stack
• Frame parser / packet builder
• Session control state machine
• Keep-alive supervision
• ECU identification
• EEPROM / memory read services
• Diagnostic command execution
• Timeout and retry handling
• Non-blocking ISR-friendly architecture

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Development Environment

Recommended tools:

• STM32CubeIDE 2.x
• STM32CubeMX
• Git
• Gitea
• ST-Link Utility / STM32CubeProgrammer

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Build

Open the project in STM32CubeIDE and build:

Project -> Build Project

Or from terminal if using headless tools:

make all

Generated binaries:

• .elf
• .hex
• .bin

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Flashing

Use STM32CubeProgrammer or CubeIDE:

Run -> Debug

or

Run -> Run As -> STM32 Cortex-M C/C++ Application

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Current Development Status

Current migration phase:

• Repository initialized
• STM32H5 platform selected
• CubeMX base project
• Bluetooth driver migration
• Protocol migration
• Diagnostic validation
• Real ECU testing
• Production release

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Version Control Workflow

Typical workflow:

git pull
git add .
git commit -m "Describe changes"
git push

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Notes

This repository may include:

• firmware sources
• CubeIDE project files
• diagnostic protocol implementation
• future KiCad hardware revisions

Build artifacts are excluded through .gitignore.

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Maintainer

Herlic Components Professional diesel ECU diagnostics and control electronics

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License

Internal development / proprietary project