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.

---

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.

---

Hardware Platform

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

---

Project Structure

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

└── README.md

---

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

---

Development Environment

Recommended tools:

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

---

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

---

Flashing

Use STM32CubeProgrammer or CubeIDE:

Run -> Debug

or

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

---

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

---

Version Control Workflow

Typical workflow:

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

---

Notes

This repository may include:

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

Build artifacts are excluded through .gitignore.

---

Maintainer

Herlic Components Professional diesel ECU diagnostics and control electronics

---

License

Internal development / proprietary project