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// license:BSD-3-Clause
// copyright-holders:Barry Rodewald
/*
* digiblst.c
*
* Created on: 23/08/2014
*/
#include "emu.h"
#include "digiblst.h"
#include "sound/volt_reg.h"
#include "speaker.h"
//**************************************************************************
// COVOX DEVICE
//**************************************************************************
// device type definition
DEFINE_DEVICE_TYPE(CENTRONICS_DIGIBLASTER, centronics_digiblaster_device, "digiblst", "Digiblaster (DIY)")
/***************************************************************************
IMPLEMENTATION
***************************************************************************/
//-------------------------------------------------
// centronics_covox_device - constructor
//-------------------------------------------------
centronics_digiblaster_device::centronics_digiblaster_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, CENTRONICS_DIGIBLASTER, tag, owner, clock),
device_centronics_peripheral_interface( mconfig, *this ),
m_dac(*this, "dac"),
m_data(0)
{
}
//-------------------------------------------------
// device_add_mconfig - add device configuration
//-------------------------------------------------
MACHINE_CONFIG_START(centronics_digiblaster_device::device_add_mconfig)
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("speaker")
MCFG_SOUND_ADD("dac", DAC_8BIT_R2R, 0) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.5) // unknown DAC
MCFG_DEVICE_ADD("vref", VOLTAGE_REGULATOR, 0) MCFG_VOLTAGE_REGULATOR_OUTPUT(5.0)
MCFG_SOUND_ROUTE_EX(0, "dac", 1.0, DAC_VREF_POS_INPUT) MCFG_SOUND_ROUTE_EX(0, "dac", -1.0, DAC_VREF_NEG_INPUT)
MACHINE_CONFIG_END
void centronics_digiblaster_device::device_start()
{
save_item(NAME(m_data));
}
void centronics_digiblaster_device::update_dac()
{
if (started())
m_dac->write(m_data);
}
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