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viper.cpp: documented the I/O board for Mocap Golf [Guru]

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Ivan Vangelista 2021-12-25 20:59:44 +01:00
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src/mame/drivers/viper.cpp
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@ -378,9 +378,28 @@ MB81G163222-80 - Fujitsu MB81G163222-80 256k x 32-bit x 2 banks Synchronous Grap
CN2/CN3 - Video output connector to external monitors
CN4/CN5 - Multi-pin IDC connectors joining to main board CN15/CN16
An additional control PCB is used for Mocap Golf for the golf club sensor. It contains a ROMless MCU, an EPROM and
some other components. It will be documented at a later date.
I/O Board for Mocap Golf
----------------------------------
Board#: OMZ-3DCPU
The I/O board and hook-up is very similar to the gun board used on
House Of The Dead 2 (NAOMI).
The I/O board talks to the main board via a MAX232 TX/RX connection.
The MCU is a ROM-less NEC D784031GC.
EPROM is common 27C512 EPROM. End of the ROM shows plain text
'COPYRIGHT(C) OHMIC 1997-1998'
The rest of the board just contains lots of opamps, logic, a DC-DC converter,
resistors/caps/diodes/inductors, LM7805 5V regulator, MAX232, 2MHz XTAL,
some pots, 2-position dipsw (both on, pulls MCU pins 77 & 78 to ground),
VCO (2x BA7042), dual frequency synthesizer (BU2630) and a bunch of
connectors.
The monitor has a lot of LED sensors around the edge. The sensors
are the same type used by Sega gun games like Too Spicy, HOTD2 etc.
The sensors are linked together (like Christmas tree lights) and plug into the
I/O board. The gun/golf club plugs into the gun connectors.
There are 2 gun connectors on the board but as far as I know Mocap Golf is
a single player game, although network/e-Amusement might be possible.
The golf club acts like a LED gun. PCB power input is 12V.
*/
#include "emu.h"