VasfEFI UX 1.0.5 - Quick Start
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System requirements
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- Windows 10 or Windows 11
- USB data cable
- VasfEFI S1 or VasfEFI S2 ECU

Installation and connection
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1. Run VasfEFI_Setup_1.0.5.exe and complete the installation.
2. Connect the ECU to the computer with a USB data cable.
3. VasfEFI S1:
   - Select the FTDI USB serial port.
   - If no COM port appears, run the included FTDI driver installer.
4. VasfEFI S2:
   - Windows should detect the STM32 USB CDC / Virtual COM Port automatically.
   - Normal ECU communication appears as a COM port.
   - DFU / BOOT mode is only for firmware flashing and does not appear as a normal COM port.
5. Open VasfEFI UX.
6. Open Project Settings and select the correct controller:
   - S1 (AVR) for VasfEFI S1
   - S2 (STM32) for VasfEFI S2
7. Select the correct COM port and connect.
8. Confirm that live ECU data is visible before changing or burning calibrations.

VasfEFI S2 RealDash CAN
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- Enable Internal CAN bus in VasfEFI UX.
- Select "VasfEFI Dashboard v1" under CAN Broadcasting.
- Bus speed: 500 kbit/s
- Standard 11-bit identifiers: 0x600 to 0x606
- Import VasfEFI_S2_CAN_Dashboard_v1_0x600_0x606.xml into RealDash.

Safety
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Professional installation and calibration are required. Verify wiring, grounds,
power supplies and configuration before operating the engine. Incorrect wiring or
calibration can damage the ECU, engine or connected components.