Leddartech Leddarengine lca3 User manual

LeddarEngine LCA3

Evaluation Board

USER GUIDE

TF ID 020741

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54A0057_2.2_EN / LeddarEngine LCA3 Evaluation Board User Guide 3 | 79

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NOTICE

This device is intended for evaluation under laboratory conditions. It has not been tested against vibration

or shocks.

 
54A0057_2.2_EN / LeddarEngine LCA3 Evaluation Board User Guide 5 | 79 
Table of Contents 
LABEL EXPLANATION AND SAFETY INFORMATION ...............................................................14 
1. LABELS...........................................................................................................................................14 
2. REGULATORY COMPLIANCE .............................................................................................................14 
DEFINITIONS ..................................................................................................................................15 
INTENDED USE AND DESCRIPTION............................................................................................17 
1. PACKAGE CONTENTS ......................................................................................................................17 
2. HARDWARE AND SOFTWARE REQUIREMENTS ...................................................................................18 
2.1. System and Software Package .............................................................................................18 
2.2. Test Equipment (Signal Generator) ......................................................................................18 
SPECIFICATIONS...........................................................................................................................21 
1. MAIN SPECIFICATIONS.....................................................................................................................21 
2. MECHANICAL SPECIFICATIONS.........................................................................................................22 
3. RENESAS R-CAR V3H STARTER KIT...............................................................................................24 
4. LCA3 EVALUATION BOARD BLOCK DIAGRAM....................................................................................25 
5. INTERFACES ...................................................................................................................................26 
5.1. Interface Connector Types and Mating .................................................................................26 
5.2. Main Power In (J25) ..............................................................................................................28 
5.3. Module Power Outputs (J1000, J2000, J3000, J4000, J5000) .............................................28 
5.4. Photodiode Interface (J48) ....................................................................................................29 
5.5. Signal Injection PD00 and PD01 (J53 & J57) .......................................................................33 
5.6. Photodiode Power Supply Interface (J7)...............................................................................34 
5.7. Laser Module Interface (J58) ................................................................................................35 
5.8. MEMS Mirror Interface (J59) .................................................................................................37 
5.9. Beam Steering Interface (J64) ..............................................................................................40 
5.10. Laser Monitoring Interface (J20000) .....................................................................................41 
5.11. Laser Trigger (J51) ................................................................................................................42 
6. ENVIRONMENTAL SPECIFICATIONS ...................................................................................................42 
SETUP AND FIRST DETECTIONS ................................................................................................43 
1. INSTALLING LEDDARVIEWER............................................................................................................43 
2. POWERING THE EVALUATION BOARD ASSEMBLY...............................................................................43 
3. CONFIGURING NETWORK PARAMETERS ON THE COMPUTER..............................................................45 
4. CONNECTING THE EVALUATION BOARD ASSEMBLY TO THE COMPUTER..............................................47 
5. CONNECTING TO LEDDARVIEWER ....................................................................................................48 
6. CONNECTING THE SIGNAL GENERATOR TO THE EVALUATION BOARD AND FIRST DETECTIONS ............49 
7. FIRST DETECTIONS .........................................................................................................................52 

 
| 79 © 2022 LeddarTech Inc. 
8. ACQUISITION PROCESS DESCRIPTION ..............................................................................................52 
LEDDARVIEWER............................................................................................................................54 
1. MAIN WINDOW................................................................................................................................54 
2. 3D VIEWER AND PARAMETERS ........................................................................................................57 
3. PANNING AND VIEWING ...................................................................................................................60 
4. FILE MENU /PLAY RECORD MENU ...................................................................................................62 
5. DISPLAY MENU ...............................................................................................................................63 
5.1. Waveform Display Window ...................................................................................................66 
5.2. Detection Display Window.....................................................................................................73 
5.3. Acquisition Display Window ..................................................................................................75 
6. SETTINGS/PREFERENCES................................................................................................................76 
7. HELP MENU /ABOUT WINDOW.........................................................................................................77 
LEDDARENGINE DEVELOPMENT PACKAGE ............................................................................78 
TROUBLESHOOTING ....................................................................................................................78 
TECHNICAL SUPPORT..................................................................................................................78 
 
 

 
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Table of Figures 
Fig. 1: Saturation........................................................................................................................................ 15 
Fig. 2: Channel index definition.................................................................................................................. 15 
Fig. 3: Optical crosstalk.............................................................................................................................. 16 
Fig. 4: Electrical crosstalk .......................................................................................................................... 16 
Fig. 5: Gaussian pulse requirement ........................................................................................................... 19 
Fig. 6: Rigol DG4202 function/waveform arbitrary signal generator .......................................................... 20 
Fig. 7: LCA3 Evaluation Board / V3H Starter Kit assembly ....................................................................... 22 
Fig. 8: LCA3 Evaluation Board assembly dimensions and mounting holes .............................................. 23 
Fig. 9: Renesas R-CAR V3H Evaluation Board (front and rear view without fan) ..................................... 24 
Fig. 10: Renesas R-CAR V3H Evaluation Board dimensions and mounting holes ................................... 24 
Fig. 11: LCA3 Evaluation Board block diagram.......................................................................................... 25 
Fig. 12: Main interfaces on LCA3 Evaluation Board................................................................................... 26 
Fig. 13: MEMS interface mode 1 ............................................................................................................... 37 
Fig. 14: MEMS interface mode 2 ............................................................................................................... 38 
Fig. 15: LeddarViewer folder content ......................................................................................................... 43 
Fig. 16: Powering the LCA3 Evaluation Board assembly........................................................................... 44 
Fig. 17: LED states following the Evaluation Board assembly powering on .............................................. 44 
Fig. 18: Changing network adapter settings ............................................................................................... 45 
Fig. 19: Ethernet network option ................................................................................................................ 46 
Fig. 20: Ethernet properties........................................................................................................................ 46 
Fig. 21: IP address and subnet mask ........................................................................................................ 47 
Fig. 22: Connecting the Evaluation Board to the computer........................................................................ 47 
Fig. 23: LT Connection window.................................................................................................................. 48 
Fig. 24: Main 3D display window following connection to the Evaluation Board ........................................ 48 
Fig. 25: Example of pulse generated from the waveform generator .......................................................... 49 
Fig. 26: Connection of the signal generator on PD00 (J57) and LTRIG (J51) ........................................... 49 
Fig. 27: Recommended test setup using a waveform generator................................................................ 50 
Fig. 28: Example of delay… ....................................................................................................................... 50 
Fig. 29: Measurement comparison of the generated pulses ...................................................................... 51 
Fig. 30: Measurement comparison of the generated pulses ...................................................................... 51 
Fig. 31: First detections - Main 3D display window .................................................................................... 52 
Fig. 32: Distance display limits (3D parameter panel)................................................................................ 52 
Fig. 33: LeddarEngine LCA3 acquisition process ...................................................................................... 53 
Fig. 34: Open window checkmark example ............................................................................................... 54 
Fig. 35: LeddarViewer main window with a 3D view (Internal Trigger mode) ............................................ 54 

 
8 | 79 © 2022 LeddarTech Inc. 
Fig. 36: LeddarViewer main window with a 3D view (External Software Trigger mode)............................ 55 
Fig. 37: LeddarViewer main window with a 3D view and the 3D display parameter window open............ 57 
Fig. 38: 3D display parameters .................................................................................................................. 58 
Fig. 39: Display segment information (hold <Alt> key) ............................................................................... 60 
Fig. 40: Scene rotation (left-click) .............................................................................................................. 60 
Fig. 41: Scene rotation in the screen plan, around the visualization window center (<Ctrl> + left-click) ... 61 
Fig. 42: Scene translation (<Shift> + left-click)........................................................................................... 61 
Fig. 43: Zoom in/out in scene (mouse wheel up/down or right-click) ......................................................... 61 
Fig. 44: Play record window ....................................................................................................................... 62 
Fig. 45: Display windows from the display menu ....................................................................................... 64 
Fig. 46: Drag the isolated display window into the main 3D display window to reattach ........................... 65 
Fig. 47: Waveform display window ............................................................................................................ 66 
Fig. 48: Waveforms displayed without offset .............................................................................................. 68 
Fig. 49: Waveforms displayed without offset .............................................................................................. 68 
Fig. 50: Waveforms displayed (lighter weight on left, heavier weight on right) .......................................... 69 
Fig. 51: Waveforms displayed, with smaller spacing (left) and larger spacing (right) ................................ 69 
Fig. 52: Waveform displayed with square markers (left) and circle markers (right)................................... 70 
Fig. 53: Waveform displayed without (left) and with (right) background grid ............................................. 70 
Fig. 54: Region of interest dialog ............................................................................................................... 71 
Fig. 55: Region of interest success message ............................................................................................ 71 
Fig. 56: Region of interest failure message ............................................................................................... 72 
Fig. 57: Examples of raw waveforms (left) and processed waveforms (right) ........................................... 72 
Fig. 58: Detection display window.............................................................................................................. 73 
Fig. 59: Acquisition window. Predefined acquis. parameters (left), custom acquis. parameters (right) .... 75 
Fig. 60: Preferences window...................................................................................................................... 76 
Fig. 61: Directory browser window ............................................................................................................. 77 
Fig. 62: New recording directory displayed in the Directory field............................................................... 77 
Fig. 63: About window, showing the LeddarViewer release version number ............................................ 77 
 

 
54A0057_2.2_EN / LeddarEngine LCA3 Evaluation Board User Guide 9 | 79 
List of Tables 
Table 1: Explanation of labels .................................................................................................................... 14 
Table 2: Definitions .................................................................................................................................... 15 
Table 3: Package contents (EVALBOARD-LCA3-A1) ............................................................................... 17 
Table 4: LCA3 Evaluation Board electrical specifications.......................................................................... 21 
Table 5: Main interface connector types and mating ................................................................................. 27 
Table 6: Main power-in connector overview (J25) ..................................................................................... 28 
Table 7: Main power in connector pinout (J25).......................................................................................... 28 
Table 8: Main power out connector overview (J1000, J2000, J3000, J4000, J5000) ............................... 28 
Table 9: Main power out connector pinout (J1).......................................................................................... 29 
Table 10: Photodiode interface overview (J48).......................................................................................... 30 
Table 11: Photodiode interface pinout (J48) .............................................................................................. 30 
Table 12: Signal injection PD00 and PD01 overview (J57 & J53) ............................................................. 34 
Table 13: Signal injection PD00 and PD01 pinout (J57 & J53) ................................................................. 34 
Table 14: Photodiode power supply interface overview (J7) ..................................................................... 34 
Table 15: Photodiode power supply interface pinout (J7).......................................................................... 35 
Table 16: Laser module interface overview (J58) ...................................................................................... 35 
Table 17: Laser module interface pinout (J58) .......................................................................................... 36 
Table 18: MEMS mirror interface overview (J59)....................................................................................... 38 
Table 19: MEMS mirror interface pinout (J59) ........................................................................................... 39 
Table 20: Beam steering interface overview (J64) .................................................................................... 40 
Table 21: Beam steering interface pinout (J64) ......................................................................................... 40 
Table 22: Laser monitoring interface overview (J2000)............................................................................. 41 
Table 23: Laser monitoring interface pinout (J20000) ............................................................................... 41 
Table 24: Laser trigger overview (J51) ...................................................................................................... 42 
Table 25: Laser trigger pinout (J51) ........................................................................................................... 42 
Table 26: LCA3 Evaluation Kit environmental specifications..................................................................... 42 
Table 27: Main LeddarEngine LCA3 process parameters......................................................................... 53 
Table 28: Main window menus................................................................................................................... 55 
Table 29: Main window toolbar .................................................................................................................. 56 
Table 30: 3D display parameters ............................................................................................................... 58 
Table 31: File menu ................................................................................................................................... 62 
Table 32: Play record toolbar ..................................................................................................................... 63 
Table 33: Display menu ............................................................................................................................. 63 
Table 34: Waveform display window menu ............................................................................................... 67 
Table 35: Actions feature (Waveform window) .......................................................................................... 67 