Master System Cable Setup Guide - GrechTech/RetroRosetta GitHub Wiki

Put in Parallel_2P_PP mode in web config

RetroRosetta Pinout

  1. RetroRosetta config
    1. Place a jumper cap across row 20 (A and B) of the RetroRosetta header
    2. Place a jumper cap across row 19 (A and B) of the RetroRosetta header
    3. Place a jumper cap across row 18 (A and B) of the RetroRosetta header
    4. Place a jumper cap across row 17 (A and B) of the RetroRosetta header

LevelShifter Pinout

  1. Level Shifter Power config
    1. Place a jumper cap across the B/5V pins of header J6
    2. [2 Player] Place a jumper cap across the C/5V pins of header J6
  2. Level Shifter IO config
    1. Place a jumper cap on A1A on header J1
    2. Place a jumper cap on A2A on header J1
    3. Place a jumper cap on A3A on header J1
    4. Place a jumper cap on A4A on header J1
    5. Place a jumper cap on B1A on header J2
    6. Place a jumper cap on B2A on header J2
    7. Place a jumper cap on B3A on header J2
    8. Place a jumper cap on B4A on header J2
    9. [2 Player] Place a jumper cap on C1A on header J3
    10. [2 Player] Place a jumper cap on C2A on header J3
    11. [2 Player] Place a jumper cap on C3A on header J3
    12. [2 Player] Place a jumper cap on C4A on header J3
    13. [1 Player] Place a jumper cap on A2E on header J1
    14. [1 Player] Place a jumper cap on A4E on header J1

Cable Pinout (Looking at cable end)

**(GND input pins are on the side of header J6 that is towards the edge of the PCB)

NC = No Connection (Leave Disconnected)

1. Red - U
2. Black – D
3. Grey – L
4. Orange – R
5. Brown – 5V
6. Green – TL
7. White – NC
8. Blue – GND
9. Yellow – TR

  1. Level Shifter Input wiring [Player 1]
    1. Connect U1 (Red / Pin 1 of Player 1) to B1Y on header J2
    2. Connect D1 (Black / Pin 2 of Player 1) to B2Y on header J2
    3. Connect L1 (Grey / Pin 3 of Player 1) to B3Y on header J2
    4. Connect R1 (Orange / Pin 4 of Player 1) to B4Y on header J2
    5. Connect 5V (Brown / Pin 5 of Player 1) to a 5V input pin*
    6. Connect TL1 (Green / Pin 6 of Player 1) to A1Y on header J1
    7. Connect GND (Blue / Pin 8 of Player 1) to a GND input pin**
    8. Connect TR1 (Yellow / Pin 9 of Player 1) to A3Y on header J1
  2. Level Shifter Input wiring [Player 2]
    1. Connect U2 (Red / Pin 1 of Player 2) to C1Y on header J3
    2. Connect D2 (Black / Pin 2 of Player 2) to C2Y on header J3
    3. Connect L2 (Grey / Pin 3 of Player 2) to C3Y on header J3
    4. Connect R2 (Orange / Pin 4 of Player 2) to C4Y on header J3
    5. Connect 5V (Brown / Pin 5 of Player 2) to a 5V input pin*
    6. Connect TL2 (Green / Pin 6 of Player 2) to A2Y on header J1
    7. Connect GND (Blue / Pin 8 of Player 2) to a GND input pin**
    8. Connect TR2 (Yellow / Pin 9 of Player 2) to A4Y on header J1
  3. Output wiring [Level Shifter to RetroRosetta Core]
    1. Connect GND of LevelShifter** to RetroRosetta pin 20C
    2. Connect 5V of LevelShifter* to RetroRosetta pin 19D
    3. Connect A1E to RetroRosetta pin 14B
    4. Connect A3E to RetroRosetta pin 13B
    5. Connect B1E to RetroRosetta pin 4B
    6. Connect B2E to RetroRosetta pin 8B
    7. Connect B3E to RetroRosetta pin 7B
    8. Connect B4E to RetroRosetta pin 1B
    9. [2 Player] Connect A2E to RetroRosetta pin 10B
    10. [2 Player] Connect A4E to RetroRosetta pin 16B
    11. [2 Player] Connect C1E to RetroRosetta pin 6B
    12. [2 Player] Connect C2E to RetroRosetta pin 5B
    13. [2 Player] Connect C3E to RetroRosetta pin 2B
    14. [2 Player] Connect C4E to RetroRosetta pin 15B