Toaplan Version 2 FPGA Implementation

FPGA compatible cores of Toaplan Version 2 arcade hardware titles for MiSTerFPGA and OpenFPGA written by atrac17. Based on the Raizing FPGA implementation by Pramod Somashekar.

Implementation references TP-023 schematics and verified against Teki Paki (TP-020), Dogyūn!! (TP-022), Knuckle Bash (TP-023), Tatsujin Ō (TP-024), FixEight (TP-026) and Batsugun (TP-030).

The intent is for these cores to be a 1:1 playable implementation of Toaplan V2 hardware titles. Currently in beta state and in active development.

Supported Titles

Title	PCB Number	Encrypted Program	Secondary CPU	CPU Usage	Status	Released
Teki Paki	TP-020	No	HD647180	Audio	Implemented	20240511
Ghox	TP-021	No	HD647180	Audio & I/O	WIP	-
Dogyūn!! (Test Location)	TX-022	Yes	Z80	Audio	WIP	-
Dogyūn!!	TP-022	Yes	NEC V25	Audio	-	-
Knuckle Bash	TP-023	Yes	NEC V25	Audio	-	-
Tatsujin Ō	TP-024	No	-	N/A	Implemented	20220819
Whoopee!!	TP-025	No	Z80	N/A	Implemented	20221225
FixEight	TP-026	No	NEC V25	Audio & I/O	-	-
V-V	TP-027	Yes	NEC V25	Audio	-	-
Batsugun	TP-030	No	NEC V25	Audio	-	-
Otenki Paradise: Snow Bros. 2	TP-033	No	-	N/A	Implemented	20220904

External Modules

Module	Function	Author
fx68k	Motorola 68000 CPU	Jorge Cwik
t80	Zilog Z80 CPU	Daniel Wallner
jt51	Yamaha YM2151	Jose Tejada Gomez
jt6295	OKI MSM6295	Jose Tejada Gomez
jtopl2	Yamaha OPL 2	Jose Tejada Gomez
jtframe	FPGA Framework	Jose Tejada Gomez; modified by Pramod Somashekar and atrac17
GP9001	Toaplan Graphics ASIC	Pramod Somashekar

Known Issues

• Sprite mux priority on explosions TP-020 / TP-025 [Issue]
• JT6295 phrase command playback not implemented; results in playback issues for TP-024 [Issue]

PCB Check List

Clock Information

H-Sync	V-Sync	Source	PCB Number
15.625kHz	59.637404	DSLogic +	All Toaplan V2 Hardware

Crystal Oscillators

TP-020 (Teki Paki)	TP-021 (Ghox)
Freq (MHz) Use 10.000 MHz M68000 / Z180 (Hardware) 27.000 MHz GP9001 / YM3812 / Z80 (FPGA)	Freq (MHz) Use 10.000 MHz M68000 / Z180 27.000 MHz GP9001 / YM2151

TX-022 (Dogyūn!! - Dogyuun)	TP-024 (Tatsujin Oh-Truxton II)
Freq (MHz) Use 24.000 MHz M68000 27.000 MHz GP9001 / YM2151 / Z80 1.056 Mhz OKI MSM6295	Freq (MHz) Use 16.000 MHz M68000 / OKI MSM6295 27.000 MHz GP9001 / YM2151

TP-025 (Whoopee!! - Pipi & Bibi's)	TP-033 (Otenki Paradise: Snow Bros. 2)
Freq (MHz) Use 10.000 MHz M68000 27.000 MHz GP9001 / YM3812 / Z80	Freq (MHz) Use 27.000 MHz GP9001 / YM2151 16.000 MHz M68000 / OKI MSM6295 32.000 MHz Not Utilized on TP-033

Pixel clock: 6.75 MHz

Estimated geometry:

432 pixels/line  

262 lines/frame  

PCB Components

TP-020 (Teki Paki)	TP-021 (Ghox)
Chip Use Motorola 68000 CPU Main CPU Zilog Z80 CPU Sound CPU Yamaha YM3812 OPL Audio GP9001 Graphics VDP	Chip Use Motorola 68000 CPU Main CPU Zilog Z180 CPU Sound CPU Yamaha YM3812 OPL Audio GP9001 Graphics VDP

TX-022 (Dogyūn!! - Dogyuun)	TP-024 (Tatsujin Oh-Truxton II)
Chip Use Motorola 68000 CPU Main CPU Zilog Z80 CPU Sound CPU Yamaha YM3812 OPL Audio GP9001 Graphics VDP	Chip Use Motorola 68000 CPU Main CPU Yamaha YM2151 OPM Audio OKI MSM6295 ADPCM Audio GP9001 Graphics VDP

TP-025 (Whoopee!! - Pipi & Bibi's)	TP-033 (Otenki Paradise: Snow Bros. 2)
Chip Use Motorola 68000 CPU Main CPU Zilog Z80 CPU Sound CPU Yamaha YM3812 OPL Audio GP9001 Graphics VDP	Chip Use Motorola 68000 CPU Main CPU Yamaha YM2151 OPM Audio OKI MSM6295 ADPCM Audio GP9001 Graphics VDP

Additional Components (Board Dependent)

Chip	Use
Zilog Z80 CPU	Sound CPU
HD647180X	Sound CPU & I/O Handling
NEC V25	Sound CPU & I/O Handling
GP9001	Second Graphics VDP

PCB Information

• W.I.P

Control Layout

• W.I.P

Keyboard Handler

• Keyboard inputs mapped to mame defaults for all functions up to the third player; player three mapping is not listed below.

Services	Coin/Start
Functions Keymap Test F2 Reset F3 Service 9 Pause P	Functions Keymap P1 Start 1 P2 Start 2 P1 Coin 5 P2 Coin 6

Player 1	Player 2
Functions Keymap P1 Up Up P1 Down Down P1 Left Left P1 Right Right P1 Bttn 1 L-CTRL P1 Bttn 2 L-ALT P1 Bttn 3 Space	Functions Keymap P2 Up R P2 Down F P2 Left D P2 Right G P2 Bttn 1 A P2 Bttn 2 S P2 Bttn 3 Q

Acknowledgments

Pramod Somashekar for his extensive work on the GP9001, Raizing FPGA implementation, general knowledge, and assistance with implementing Tatsujin Ō.

Jose Tejada for his extensive work on FPGA modules utilized in this implementation, general knowledge, and assistance.

@90s_cyber_thriller for loaning Dogyūn!!, Knuckle Bash, Tatsujin Ō, and Batsugun PCBs referenced for core development.

Support

Please consider showing support for this and future projects by contributing to the Coin-Op Collection Patreon.

License

Contact the author(s) for special licensing needs. Otherwise follow the GPLv3 license attached.