MAMEWorld Forums - Programming - Linking Hard Drivin hardware games

This isn't a request as this feature has been implemented before: https://git.redump.net/mame/commit/?id=068f87ed1f2c71cf06589093f475917a7ca6512b

The problem is there isn't any clear instructions or indication on how to link these games (only two of them have this feature, Race Drivin and Steel Talons). That same person who did this commit also made a video of this being done: https://www.youtube.com/watch?v=35nz0kxco-g

The command "bitbngr" has been changed to "bitb" currently. Naturally, one would need two separate nvram (and maybe cfg) directories because game link ids are stored in the game's nvram and rs232 settings are changed in the tab menu. In theory, one should have two bat launch files set up something like this:

cfg1: mame64.exe racedriv -cfg_directory cfg -nvram_directory nvram -mainpcb:rs232 null_modem -bitb socket.127.0.0.1:15112

cfg2: mame64.exe racedriv -cfg_directory cfg2 -nvram_directory nvram2 -mainpcb:rs232 null_modem -bitb socket.127.0.0.1:15112

Rs232/Null Modem config on both instances are as follows:
Baud: 38400
Bits: 8
Start Bits: 1
Stop Bits: 1
Parity: Even

Edit: Turns out these configs used for both bat files would work. Only Race Drivin links atm (given one would have to set one side to master and the other side to slave). Steel Talons on the other hand does not link at all (different linking configuration/DSP COMM board isn't full hooked up as that board fails at self test startup). Looks like I have some investigation.

-.-

Edited by Hydreigon (01/22/19 04:11 PM)