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author briantro <briantro@users.noreply.github.com>2014-10-23 15:52:09 -0500
committer briantro <briantro@users.noreply.github.com>2014-10-23 15:52:09 -0500
commiteb3ca10a734edca0859d7fdb16a470bb52be1992 (patch)
treea100d833d162295f1c9c438e57674233f508366a
parenta712b740c0a951b40aeb2e68e9f68b7d4408a76d (diff)
sonson.c: Correct Audio CPU clock for Son Son as measured on PCB. [Corrado Tomaselli]
-rw-r--r--src/mame/drivers/sonson.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/src/mame/drivers/sonson.c b/src/mame/drivers/sonson.c
index 84afc316568..9e341d5f0eb 100644
--- a/src/mame/drivers/sonson.c
+++ b/src/mame/drivers/sonson.c
@@ -238,18 +238,18 @@ void sonson_state::machine_reset()
static MACHINE_CONFIG_START( sonson, sonson_state )
/* basic machine hardware */
- MCFG_CPU_ADD("maincpu", M6809,12000000/6) /* 2 MHz ??? */
+ MCFG_CPU_ADD("maincpu", M6809, XTAL_12MHz/8) /* 1.5 MHz */
MCFG_CPU_PROGRAM_MAP(main_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", sonson_state, irq0_line_hold)
- MCFG_CPU_ADD("audiocpu", M6809,12000000/6) /* 2 MHz ??? */
+ MCFG_CPU_ADD("audiocpu", M6809, XTAL_12MHz/8) /* 1.5 MHz */
MCFG_CPU_PROGRAM_MAP(sound_map)
MCFG_CPU_PERIODIC_INT_DRIVER(sonson_state, irq0_line_hold, 4*60) /* FIRQs are triggered by the main CPU */
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
- MCFG_SCREEN_REFRESH_RATE(60)
+ MCFG_SCREEN_REFRESH_RATE(57.37)
MCFG_SCREEN_SIZE(32*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(1*8, 31*8-1, 1*8, 31*8-1)
MCFG_SCREEN_UPDATE_DRIVER(sonson_state, screen_update_sonson)
@@ -264,10 +264,10 @@ static MACHINE_CONFIG_START( sonson, sonson_state )
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
- MCFG_SOUND_ADD("ay1", AY8910, 12000000/8)
+ MCFG_SOUND_ADD("ay1", AY8910, XTAL_12MHz/8) /* 1.5 MHz */
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30)
- MCFG_SOUND_ADD("ay2", AY8910, 12000000/8)
+ MCFG_SOUND_ADD("ay2", AY8910, XTAL_12MHz/8) /* 1.5 MHz */
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.30)
MACHINE_CONFIG_END