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brikett: less arbitrary speaker timing

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hap 2024-07-03 15:44:18 +02:00
parent 31f3bfeade
commit 9e8abca873
1 changed files with 9 additions and 9 deletions
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18
src/mame/hegenerglaser/brikett.cpp
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@ -60,11 +60,11 @@ Mephisto III program module:
- DM74LS373N (latch)
- HCF4556BE (chip select?)
ESB II interface (via module slot):
ESB II board interface (via module slot):
- PCB label: DH 5000 00 111 01
- CD4001, 3*74373, MDP1603-331G (resistor array)
ESB 6000 interface (via external port):
ESB 6000 board interface (via external port):
- PCB label: DH 5000 00 111 12
- TC4081, TC4082, TC4017, 74373, 74374
@ -92,7 +92,7 @@ BTANB:
#include "machine/cdp1852.h"
#include "machine/clock.h"
#include "machine/sensorboard.h"
#include "sound/dac.h"
#include "sound/spkrdev.h"
#include "video/pwm.h"
#include "speaker.h"
@ -112,7 +112,7 @@ public:
brikett_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_irq_clock(*this, "nmi_clock"),
m_irq_clock(*this, "irq_clock"),
m_extport(*this, "extport"),
m_board(*this, "board"),
m_display(*this, "display"),
@ -144,7 +144,7 @@ private:
optional_device<sensorboard_device> m_board;
required_device<mephisto_display1_device> m_display;
optional_device<pwm_display_device> m_led_pwm;
required_device<dac_1bit_device> m_dac;
required_device<speaker_sound_device> m_dac;
optional_ioport_array<4+2> m_inputs;
emu_timer *m_speaker_off;
@ -173,7 +173,7 @@ private:
void esb6_w(u8 data);
int esb6_r();
TIMER_CALLBACK_MEMBER(speaker_off) { m_dac->write(0); }
TIMER_CALLBACK_MEMBER(speaker_off) { m_dac->level_w(0); }
};
@ -241,8 +241,8 @@ u8 brikett_state::sound_r()
// port 1 read enables the speaker
if (!machine().side_effects_disabled())
{
m_dac->write(1);
m_speaker_off->adjust(attotime::from_usec(25));
m_dac->level_w(1);
m_speaker_off->adjust(attotime::from_ticks(8, m_maincpu->clock()));
}
return 0xff;
@ -503,7 +503,7 @@ void brikett_state::mephistoj(machine_config &config)
// sound hardware
SPEAKER(config, "speaker").front_center();
DAC_1BIT(config, m_dac).add_route(ALL_OUTPUTS, "speaker", 0.25);
SPEAKER_SOUND(config, m_dac).add_route(ALL_OUTPUTS, "speaker", 0.5);
}
void brikett_state::mephisto(machine_config &config)