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PCHUD

Learn about the main features of PCHUD, a PC-based development tool for automotive systems. Configure and communicate with different devices for vehicle calibration and verification.

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PCHUD

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  1. PCHUD John Boreham Delphi Automotive Systems

  2. Introduction • PC based development tool • ALDL serial communication • Configurable for different devices • Assists vehicle calibration and verification

  3. Agenda • Overview • Main Features (What PCHUD Can Do) • Configuration (How To Setup PCHUD) • Communication Setup (Comm抯 Modes)

  4. Overview • HUDINSTL.EXE (Installation File) • PCHUD Cable (RS232 - ALDL) • Config Files Available For VT • Master Mode (Bench or Dyno Testing) • Slave Mode (Vehicle Comm抯 Bus)

  5. Main Features • Data Capture • Data Logging • Data Slewing

  6. Data Capture • Mode 1 ALDL Data Tables • Bar Graph and Binary Gauges • Alarm Thresholds (High and Low) • Optional Gauge Size and Colour • Configurable Scaling and Decimal Places • 100ms Sample Rate (Master Mode) • 300ms Sample Rate (Slave Mode : VT)

  7. Gauge Setup • 1. Add Gauge • Menu-->Gauge-->Add • Parameter Name (From *.PAR) • Location (Screen Position) • Type (Bar Graph, Binary, Warning) • Width & Height • Range (Defaults to *.PAR) • Alarm (High & Low Thresholds)

  8. Gauge Setup • 2. Gauge Colours • Menu-->Setup-->Gauge Colours • High Alarm, Low Alarm Colours • 3. Remove Gauge • Menu-->Gauge-->Remove • 4. Modify Gauge • Menu-->Gauge-->Modify (OR Double Click Gauge)

  9. Gauge Setup • 5. Save Screen Setup (*.HUD) • Menu-->File-->Save • e.g. VT_ENG.HUD • 6. Retrieve Screen Setup (*.HUD) • Menu-->File-->Open • Last Used HUD File Opened On Startup

  10. Sample Rate • Master Mode Sample Rate • Menu-->Setup-->HUD Data Options-->Display Period • Display Period = 100ms typ (Depends on Data Table) • Make Sure : Timeout Period > Display Period • Slave Mode Sample Rate • Sample Rate Depends on Vehicle Bus • PCHUD Triggered by Tech1 Polling Message • e.g. VT Commodore = 300ms polling rate

  11. Data Logging • Two Types of Data Logging • 1. Screen Capture (*.PLY) • Records Visual Image on Screen • Playback, FWD, REV, Pause, Step • 2. Log to File (*.LOG) • Logs Entire Mode 1 Message Data to File • LOG.EXE to Display *.LOG File • Displayed in Graph Format

  12. 1. Screen Capture • 1. Record, Playback, Clear Buffer • Buttons at Top of Screen • Step Rev, Rev, Pause, Fwd, Step Fwd, Playback, Record, Clr Buf • 2. Save Screen Capture (*.PLY) • Menu-->Playback-->Save Playback • 3. Retrieve Screen Capture (*.PLY) • Menu-->Playback-->Open Playback

  13. 2. Log to File • 1. Start Log to File • Menu-->File-->Start Capture to File • 2. Stop Log to File • Menu-->File-->End Capture to File • 3. Display Log Data (*.LOG) • LOG.EXE

  14. LOG.EXE • 1. Load LOG File (*.LOG) • Menu-->File-->Open • 2. Setup Graph • Menu-->Graph-->New (Select from list of parameters) • 3. Save Graph (*.LLG) • Menu-->Graph-->Save • 4. Open Graph • Menu-->Graph-->Open

  15. 5. Remove Graph Menu-->Graph-->Select Graph Menu-->Graph-->Remove 6. Scale X Axis Menu-->Graph-->Modify X Select Manual Scale Adjust Min / Max Values 7. Scale Y Axis Menu-->Graph-->Modify Y Select Manual Scale Adjust Min / Max Values 8. Line Style Menu-->Graph-->Modify X Menu-->Graph-->Modify Y Line Scatter LOG.EXE

  16. 9. Cursor Course Left : UP Arrow Course Right : DOWN Arrow Fine Left : LEFT Arrow Fine Right : RIGHT Arrow 10. View Menu-->View Single Overplot Separate (Arrange All) 11. Zoom Menu-->Zoom Start at Cursor End at Cursor In 2x Out 2x Center Out Max (Full Size) 12. Text Output (*.CSV) Menu-->File-->Export As Text LOG.EXE

  17. Data Slewing • ALDL Mode 4 Data Table • Slew Outputs (Byte Variables) • Slew Discretes (Bit Variables) • Absolute Slew (Var = Slew) • Delta Slew (Var = Var + Slew) • Configurable Variable Names

  18. Define Slew Parameters • 1. Start New Slew Setup • Menu-->Slew-->New • 2. Edit Outputs (Byte Variables) • Menu-->Slew-->Edit Outputs-->Edit • Name : Displayed Parameter Name • ID : Must match location in Mode 4 Data Table • Units : Displayed Units • Scale, Offset : Scaling Info From XDE or Software • Min, Max : Range of Slew Data for this Parameter • Places : Number of Decimal Places to Display

  19. Define Slew Parameters • 3. Edit Discretes (Bit Variables) • Menu-->Slew-->Edit Discretes-->Edit • Bit Number : Same order as Mode 4 Data • 00 Bit Description : Displayed 揈nable?Text • 01 Bit Description : Displayed 揙ff?Text • 02 Bit Description : Displayed 揙n?Text • ID : Don抰 Care

  20. Define Slew Parameters • 4. Save Slew File (*.SLW) • Menu-->Slew-->Save • 5. Open Slew File (*.SLW) • Menu-->Slew-->Open • e.g. VT.SLW

  21. Slewing Variables • Slew Outputs (Byte Variable) • Menu-->Slew-->Slew Outputs • Up To 3 Parameters • Enable Slew Message : Enables Mode 4 Communication • Edit Button : Select Parameter • Activate : Activates Slew Parameter • Delta : Var = Var + Slew • Absolute : Var = Slew

  22. Slewing Variables • Slew Discretes • Menu-->Slew-->Discrete Mode Control • Up To 24 Discretes • Enable Slew Message : Enables Mode 4 Communication • Enable : Enables Slew Parameter • 揙n? : Sets Discrete State to ? • 揙ff? : Sets Discrete State to ?

  23. Configuration • 1. CSV File • Contains all parameter information • Edit Using Excel • e.g. VT_ENG.CSV • 2. PAR File • Generated From CSV File • Use CSV.BAT • e.g. CSV VT_ENG (Don抰 Include File Extension) • Output is VT_ENG.PAR • Errors in VT_ENG.TXT

  24. Communication Setup • Comm Parameters • Menu-->Setup-->Comm Setup • Comm Port • Baud Rate : 8192 • Slew Device ID : VT = $F5 • DTR High at Startup : Yes

  25. Communication Setup • Master Mode • Menu-->Setup-->Comm Protocol-->ALDL Master • PCHUD Controls Comm Bus • Slave Mode • Menu-->Setup-->Comm Protocol-->ALDL Slave • PCHUD Triggered By TECH1 Poll Message • Sample Rate & Comm Timeout • Menu-->Setup-->HUD Data Options • Display Period (ms) : Only For Master Mode • Timeout Period (ms) : Make Sure > Sample Period

  26. Summary • Data Capture • Mode 1 Data Configuration (*.CSV, *.PAR) • Screen Setup (*.HUD) • Data Logging • Screen Capture (*.PLY) • Log To File (*.LOG) • LOG.EXE To Display Graph (*.LOG, *.LLG) • Data Slew • Slew Outputs, Slew Discretes • Mode 4 Data Configuration (*.SLW)

  27. Where to get more information • PCM Source Code & XDE • Mode 1 Data Tables • Mode 4 Data Tables • Variable Scaling and Offset • Variable Size (Number of Bytes) • Existing PCHUD Files • VT_ENG.CSV • VT_ENG.HUD • VT.SLW

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