From 5f597be8b1b76f6a157747b270fee63d6eabcd08 Mon Sep 17 00:00:00 2001 From: Aaron Giles Date: Thu, 18 Sep 2008 16:09:58 +0000 Subject: [PATCH] From: Corrado Tomaselli [mailto:corrado.to@tiscali.it] Sent: Wednesday, September 17, 2008 10:31 PM To: submit@mamedev.org Subject: Shadow Force clocks Verified cpu clocks and corrected/verified OKI M6295 frequencies and pin 7 status. Updated Xtal.h file --- src/emu/drivers/xtal.h | 1 + src/mame/drivers/shadfrce.c | 10 +++++----- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/src/emu/drivers/xtal.h b/src/emu/drivers/xtal.h index 6963b53fe8e..3d9450e671a 100644 --- a/src/emu/drivers/xtal.h +++ b/src/emu/drivers/xtal.h @@ -86,6 +86,7 @@ enum XTAL_13_3MHz = 13300000, /* BMC bowling */ XTAL_13_33056MHz = 13330560, /* Taito L */ XTAL_13_4MHz = 13400000, /* TNK3, Ikari Warriors h/w */ + XTAL_13_4952MHz = 13495200, /* Used on Shadow Force pcb and maybe other Technos pcbs? */ XTAL_14MHz = 14000000, XTAL_14_31818MHz = 14318180, /* Extremely common, used on 100's of PCBs */ XTAL_14_705882MHz = 14705882, /* Aleck64 */ diff --git a/src/mame/drivers/shadfrce.c b/src/mame/drivers/shadfrce.c index 200e73b29c1..e43ee7ab7a5 100644 --- a/src/mame/drivers/shadfrce.c +++ b/src/mame/drivers/shadfrce.c @@ -518,11 +518,11 @@ static MACHINE_RESET( shadfrce ) } static MACHINE_DRIVER_START( shadfrce ) - MDRV_CPU_ADD("main", M68000, 28000000/2) /* ? Guess - CPU is rated for 16MHz */ + MDRV_CPU_ADD("main", M68000, XTAL_28MHz/2) /* verified on pcb */ MDRV_CPU_PROGRAM_MAP(shadfrce_map,0) MDRV_CPU_VBLANK_INT_HACK(shadfrce_interrupt,256) - MDRV_CPU_ADD("audio", Z80, 3579545) + MDRV_CPU_ADD("audio", Z80, XTAL_3_579545MHz) /* verified on pcb */ MDRV_CPU_PROGRAM_MAP(shadfrce_sound_map,0) MDRV_MACHINE_RESET(shadfrce) @@ -544,13 +544,13 @@ static MACHINE_DRIVER_START( shadfrce ) /* sound hardware */ MDRV_SPEAKER_STANDARD_STEREO("left", "right") - MDRV_SOUND_ADD("ym", YM2151, 3579545) + MDRV_SOUND_ADD("ym", YM2151, XTAL_3_579545MHz) /* verified on pcb */ MDRV_SOUND_CONFIG(ym2151_config) MDRV_SOUND_ROUTE(0, "left", 0.50) MDRV_SOUND_ROUTE(1, "right", 0.50) - MDRV_SOUND_ADD("oki", OKIM6295, 1584000) - MDRV_SOUND_CONFIG(okim6295_interface_pin7high) // clock frequency & pin 7 not verified + MDRV_SOUND_ADD("oki", OKIM6295, XTAL_13_4952MHz/8) /* verified on pcb */ + MDRV_SOUND_CONFIG(okim6295_interface_pin7high) /* verified on pcb, pin7 is at 2.4v */ MDRV_SOUND_ROUTE(ALL_OUTPUTS, "left", 0.50) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "right", 0.50) MACHINE_DRIVER_END