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silkroad.cpp: base oki clocks on OSC values. (nw)

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Note: PCB pic reveals no resonators so the clock is based off of either 32MHz or 3.579545MHz.  Old guessed values where 1.056MHz and 2.112MHz so new values are 32MHz/32 & 32MHz/16 for 1 & 2 MHz respectively.
This commit is contained in:
briantro 2017-08-20 01:18:00 -05:00
parent fbff826bd9
commit 194013e84f
1 changed files with 2 additions and 2 deletions
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4
src/mame/drivers/silkroad.cpp
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@ -300,11 +300,11 @@ static MACHINE_CONFIG_START( silkroad )
MCFG_SOUND_ROUTE(0, "lspeaker", 1.0)
MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
MCFG_OKIM6295_ADD("oki1", 1056000, PIN7_HIGH) // clock frequency & pin 7 not verified
MCFG_OKIM6295_ADD("oki1", XTAL_32MHz/32, PIN7_HIGH) // clock frequency & pin 7 not verified (was 1056000)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.45)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.45)
MCFG_OKIM6295_ADD("oki2", 2112000, PIN7_HIGH) // clock frequency & pin 7 not verified
MCFG_OKIM6295_ADD("oki2", XTAL_32MHz/16, PIN7_HIGH) // clock frequency & pin 7 not verified (was 2112000)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.45)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.45)
MACHINE_CONFIG_END