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Adjust C352 clock divider for System12/23

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This commit is contained in:
Ian Karlsson 2015-05-29 16:13:46 +02:00
parent 3634fed78a
commit 595c60e1b8
4 changed files with 8 additions and 8 deletions
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4
src/emu/sound/c352.c
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@ -485,8 +485,8 @@ void c352_device::device_start()
default:
divider=288;
break;
case C352_DIVIDER_348:
divider=348;
case C352_DIVIDER_332:
divider=332;
break;
}

2
src/emu/sound/c352.h
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@ -13,7 +13,7 @@ enum
{
C352_DIVIDER_228 = 0,
C352_DIVIDER_288 = 1,
C352_DIVIDER_348 = 2
C352_DIVIDER_332 = 2
};
//**************************************************************************

2
src/mame/drivers/namcos12.c
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@ -1591,7 +1591,7 @@ static MACHINE_CONFIG_START( coh700, namcos12_state )
/* sound hardware */
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MCFG_C352_ADD("c352", 29168000, C352_DIVIDER_348) // measured at 29.168MHz, but that's too highpitched
MCFG_C352_ADD("c352", 29168000, C352_DIVIDER_332)
MCFG_SOUND_ROUTE(0, "rspeaker", 1.00)
MCFG_SOUND_ROUTE(1, "lspeaker", 1.00)
MCFG_SOUND_ROUTE(2, "rspeaker", 1.00)

8
src/mame/drivers/namcos23.c
View File

@ -1247,7 +1247,7 @@ Notes:
#define JVSCLOCK (XTAL_14_7456MHz)
#define H8CLOCK (16737350) /* from 2061 */
#define BUSCLOCK (16737350*2) /* 33MHz CPU bus clock / input */
#define C352CLOCK (25992000) /* measured at 25.992MHz from 2061 pin 9 (using a divider of 348) */
#define C352CLOCK (25992000) /* measured at 25.992MHz from 2061 pin 9 (System 12 uses a divider of 332) */
#define VSYNC1 (59.8824)
#define VSYNC2 (59.915)
#define HSYNC (16666150)
@ -3320,7 +3320,7 @@ static MACHINE_CONFIG_START( gorgon, namcos23_state )
/* sound hardware */
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MCFG_C352_ADD("c352", C352CLOCK, C352_DIVIDER_348)
MCFG_C352_ADD("c352", C352CLOCK, C352_DIVIDER_332)
MCFG_SOUND_ROUTE(0, "rspeaker", 1.00)
MCFG_SOUND_ROUTE(1, "lspeaker", 1.00)
MCFG_SOUND_ROUTE(2, "rspeaker", 1.00)
@ -3389,7 +3389,7 @@ static MACHINE_CONFIG_START( s23, namcos23_state )
/* sound hardware */
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MCFG_C352_ADD("c352", C352CLOCK, C352_DIVIDER_348)
MCFG_C352_ADD("c352", C352CLOCK, C352_DIVIDER_332)
MCFG_SOUND_ROUTE(0, "rspeaker", 1.00)
MCFG_SOUND_ROUTE(1, "lspeaker", 1.00)
MCFG_SOUND_ROUTE(2, "rspeaker", 1.00)
@ -3469,7 +3469,7 @@ static MACHINE_CONFIG_START( ss23, namcos23_state )
/* sound hardware */
MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker")
MCFG_C352_ADD("c352", C352CLOCK, C352_DIVIDER_348)
MCFG_C352_ADD("c352", C352CLOCK, C352_DIVIDER_332)
MCFG_SOUND_ROUTE(0, "rspeaker", 1.00)
MCFG_SOUND_ROUTE(1, "lspeaker", 1.00)
MCFG_SOUND_ROUTE(2, "rspeaker", 1.00)