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bemanitools/doc/dev/journal/2023-05-28-ddr-p3io-driver-work.md

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DDR p3io driver work, various notes

Date: 2023-05-28 Author: icex2

Notes about my work on writing a DDR P3io driver.

Python IO board hardware breakout interface

PCB breakout interfaces/connectors on the side of the boards.

P2IO DDR

Descriptions assume cabinet hardware of an upgraded DDR "black SD cabinet"

  • LINE OUT 1: Primary audio out to amplifier
  • LINE OUT 2: N.C.
  • RGB: Video out to monitor, supports 15khz/31khz based on hardware switch for video freq/mode selection
  • COM1: Virtual com port that connects to the EXTIO
  • COM2: Virtual com port that connects to a pair of ICCA card readers
  • LAN: Network connection
  • PWR: 100V power in
  • ANALOG: N.C.
  • PORT 1: Lights output for cabinet lights, e.g. menu button lights, top header lights
  • PORT 2: N.C.
  • DIPSW
    • 1: ???
    • 2: On = force all sensor polling mode and allow running the game without an EXTIO
    • 3: ???
    • 4: On = force 15 khz monitor output
  • PLUG 1: Black dongle
  • PLUG 2: White dongle

P3IO GF/DM

Descriptions assume usage of a P3IO from a GF/DM in a "chimera style PCB build" on an upgraded DDR "black SD cabinet"

  • PWR: 100V power in
  • 12V-OUT: +12V out for external devices
  • PORT 1: Lights output for cabinet lights, e.g. menu button lights, top header lights
  • PORT 2: N.C.
  • COM1: To EXTIO
  • COM2: To card readers
  • RGB: Video out to monitor, supports 15khz/31khz based on hardware switch for video freq/mode selection
  • LINE OUT 1: Primary audio out to amplifier
  • LINE OUT 2: N.C.
  • DIPSW
    • 1:
    • 2:
    • 3:
    • 4: On = force 15 khz monitor output
  • PLUG 1: Roundplug black dongle
  • PLUG 2: Roundplug white dongle

P3IO DDR(X)

Descriptions assume cabinet hardware of an upgraded DDR "black SD cabinet"

  • PWR: 100V power in
  • USB: USB memory card readers on cabinet
  • PORT 1: Lights output for cabinet lights, e.g. menu button lights, top header lights
  • COM3-4: Virtual COM ports
    • COM3 (VCOM1): Pins 1,3,5 on connector -> To card readers
    • COM4 (VCOM0): Pins 2,4,6 on connector -> N.C.
  • PLUG: Breakout to security round plugs (black and white dongles)
  • COM1: To EXTIO
    • Pinout (pins left to right)
      • 1: TXD1
      • 2: RXD1
      • 3: N.C.
      • 4: N.C.
      • 5: GND
  • COM2: N/A (light spires on black HD cabinet)
    • Pinout (pins left to right)
      • 1: TXD2
      • 2: RXD2
      • 3: GND
  • RGB: Video out to monitor, supports 15khz/31khz based on hardware switch for video freq/mode selection
  • LINE OUT1: Primary audio out to amplifier
  • LINE OUT2: N.C.
  • LAN: Network
  • DIP SW
    • 1:
    • 2:
    • 3:
    • 4: On = force 15 khz monitor output

Python IO boards and differences

P3IO DDR(X)

  • Connects to USB and actually enumerates as a USB device and not a virtual COM port
  • COM ports 1-4 on breakout of the PCB are being passed through as actual COM ports to the operating system

P3IO GF/DM

  • Connects to USB and actually enumerates as a USB device and not a virtual COM port
  • COM ports 1-2 on breakout of the PCB are just virtual COM ports
  • These do not show up as COM ports on the operating system
  • The game drives the COM ports through the main P3IO protocol with additional P3IO commands to open, read, write and close these virtual COM ports

P2IO DDR

  • Connects to USB and actually enumerates as a USB device and not a virtual COM port
  • COM ports 1-2 on breakout of the PCB are just virtual COM ports
  • These do not show up as COM ports on the operating system
  • The game drives the COM ports through the main P3IO protocol with additional P3IO commands to open, read, write and close these virtual COM ports

Pinout card reader P1 -> P2 mini din8 male to mini din8 male

Port 1 2 and 3:

  • Pin 3: TX
  • Pin 4: GND
  • Pin 5 : RX

Pin 3 and 5 need to be reversed inbetween readers They are all the same, so your cable needs to bridge them over. A standard male to male mini din 8 cable does not do that.

Pinout card reader stock cable s-sub9 to round pin9

dsub-9 female -> mini-din8 male
2 (TXD) -> 3
3 (RXD) -> 5
5 (GND) -> 4

ADE board and com port assignments

Default or incorrectly configured?

  • COM1 -> on mainboard
  • COM2 -> COM2 on P3IO breakout
  • COM3 -> ???
  • COM4 -> COM1 on P3IO breakout

P3IO command init sequence on DDR 18

From the ddrio-python23 library

.data:1002D5D0 g_init_pakets   db 0AAh, 2, 0, 1, 29h dup(0); field_0.field_0
.data:1002D5D0                                         ; DATA XREF: initialize_and_send_pakets+5↑o
.data:1002D5D0                 db 0AAh, 2, 0, 2Fh, 29h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 3, 1, 27h, 1, 28h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2 dup(2), 31h, 29h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2, 3, 1, 29h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 3, 4, 27h, 29h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2Bh, 5, 25h, 10h, 28h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2Bh, 6, 25h, 10h, 28h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2Bh, 7, 25h, 10h, 28h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2Bh, 8, 25h, 10h, 28h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2Bh, 9, 25h, 10h, 28h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2Bh, 0Ah, 25h, 29h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2Bh, 0Bh, 25h, 29h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2Bh, 0Ch, 25h, 29h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2Bh, 0Dh, 25h, 29h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2Bh, 0Eh, 25h, 29h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 3, 0Fh, 5, 29h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 3, 0, 2Bh, 1, 28h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 3, 1, 29h, 5, 28h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 3, 2, 5, 30h, 28h dup(0); field_0.field_0
.data:1002D5D0                 db 0AAh, 2 dup(3), 27h, 29h dup(0); field_0.field_0
``

```text
// 01: get version <- this is part of a "flush" of old data?
// 2F: set mode
// 27: get cab type or dispsw
// 31: get coinstock
// 1: get version
// 27: get cab type or dipsw
// 25: read plug
// 25: read plug
// 25: read plug
// 25: read plug
// 25: read plug
// 25: read plug
// 25: read plug
// 25: read plug
// 25: read plug
// 25: read plug
// 5: set watchdog
// 2b: unknown
// 29: get video freq
// 5: set watchdog
// 27: get cab type or dipsw