GE885-Pico

Warning

🚧 This project is still under development. 🚧

RP2040 based GE885-PWB(A) (a.k.a. DanceDanceRevolution Link Kit, PS1 Memory Card reader for System 573) emulator

How to build

Pinout

Type	Pin: Name	RP2040	Note
JVS	1: Sense(VBUS)	GP71
JVS	2: DATA-	GP61
JVS	3: DATA+	GP51
JVS	4: GND	GND
PSX	1: Data	GP0
PSX	2: Command	GP3
PSX	3: 7V
PSX	4: GND	GND
PSX	5: 3.3V	3V3
PSX	6-1: Attention(1P)	GP14
PSX	6-2: Attention(2P)	GP15
PSX	7: Clock	GP2
PSX	8: IRQ	-
PSX	9: Acknowledge	GP8

Features

Supported

• None...

Planed

• Read/Write PS1 Memory Card on System 573
• Read controller input (used by Guitar Freaks)

Not Planed (but PR is welcome)

• Support other boards (e.g. Raspberry Pi Pico)
• Custom PCB layout
• Read/Write PS1 Memory Card via PC
• Store memory card images on other storage (e.g. SD card)
• Authenticate and download/upload memory card images (like Brightwhite)
• JVS daisy chain

References

• Controllers and Memory Cards - PlayStation Specifications - psx-spx
• JAMMA VIDEO STANDARD (THE THIRD EDITION)
• MAME k573mcr implements

Footnotes

1. JVS logic level is 5V, so use level shifter. ↩ ↩² ↩³