Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-22 16:31:49 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

s100/dj2db: Add UART (not fully hooked up yet); more accurate FDC reset (nw)

Browse Source
This commit is contained in:
AJR 2020-03-15 16:07:53 -04:00
parent 25070a043e
commit 1b059b8407
2 changed files with 14 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
src/devices/bus/s100/dj2db.cpp
View File

@ -17,6 +17,8 @@
#include "emu.h"
#include "dj2db.h"
#include "machine/ay31015.h"
//**************************************************************************
@ -64,11 +66,6 @@ const tiny_rom_entry *s100_dj2db_device::device_rom_region() const
// COM8116_INTERFACE( brg_intf )
//-------------------------------------------------
WRITE_LINE_MEMBER( s100_dj2db_device::fr_w )
{
// S1602 RRC/TRC
}
static void s100_dj2db_floppies(device_slot_interface &device)
{
device.option_add("8dsdd", FLOPPY_8_DSDD);
@ -104,10 +101,13 @@ WRITE_LINE_MEMBER( s100_dj2db_device::fdc_drq_w )
void s100_dj2db_device::device_add_mconfig(machine_config &config)
{
COM8116(config, m_dbrg, 5.0688_MHz_XTAL);
m_dbrg->fr_handler().set(FUNC(s100_dj2db_device::fr_w));
COM8116(config, m_dbrg, 5.0688_MHz_XTAL); // BR2941
m_dbrg->fr_handler().set(m_uart, FUNC(ay51013_device::write_tcp));
m_dbrg->fr_handler().append(m_uart, FUNC(ay51013_device::write_rcp));
MB8866(config, m_fdc, 10_MHz_XTAL / 5);
AY51013(config, m_uart); // TR1602
MB8866(config, m_fdc, 10_MHz_XTAL / 10); // clocked by QC output of LS390
m_fdc->intrq_wr_callback().set(FUNC(s100_dj2db_device::fdc_intrq_w));
m_fdc->drq_wr_callback().set(FUNC(s100_dj2db_device::fdc_drq_w));
@ -247,6 +247,7 @@ s100_dj2db_device::s100_dj2db_device(const machine_config &mconfig, const char *
device_s100_card_interface(mconfig, *this),
m_fdc(*this, MB8866_TAG),
m_dbrg(*this, BR1941_TAG),
m_uart(*this, S1602_TAG),
m_floppy0(*this, MB8866_TAG":0"),
m_floppy1(*this, MB8866_TAG":1"),
m_floppy2(*this, MB8866_TAG":2"),
@ -294,6 +295,8 @@ void s100_dj2db_device::device_start()
void s100_dj2db_device::device_reset()
{
m_board_enbl = m_j4->read();
m_fdc->mr_w(0);
}
@ -432,7 +435,7 @@ void s100_dj2db_device::s100_mwrt_w(offs_t offset, uint8_t data)
m_access_enbl = BIT(data, 6);
// master reset
if (!BIT(data, 7)) m_fdc->soft_reset();
m_fdc->mr_w(BIT(data, 7));
}
else if (offset == 0xfbfa) // FUNCTION SEL
{

3
src/devices/bus/s100/dj2db.h
View File

@ -13,6 +13,7 @@
#include "s100.h"
#include "imagedev/floppy.h"
#include "machine/ay31015.h"
#include "machine/com8116.h"
#include "machine/wd_fdc.h"
@ -49,13 +50,13 @@ protected:
virtual void s100_phantom_w(int state) override;
private:
DECLARE_WRITE_LINE_MEMBER( fr_w );
DECLARE_WRITE_LINE_MEMBER( fdc_intrq_w );
DECLARE_WRITE_LINE_MEMBER( fdc_drq_w );
// internal state
required_device<mb8866_device> m_fdc;
required_device<com8116_device> m_dbrg;
required_device<ay31015_device> m_uart;
required_device<floppy_connector> m_floppy0;
required_device<floppy_connector> m_floppy1;
required_device<floppy_connector> m_floppy2;