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fidelity as12: add nvram

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hap 2022-09-16 20:08:16 +02:00
parent c76cf754b3
commit 5027ed2bc3
1 changed files with 12 additions and 4 deletions
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16
src/mame/fidelity/as12.cpp
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@ -6,18 +6,21 @@
Fidelity Elegance Chess Challenger (AS12/6085) Fidelity Elegance Chess Challenger (AS12/6085)
Hardware notes (AS12): Hardware notes (AS12):
- PCB label 510-1083A01 - PCB label 510-1084B01
- R65C02P3 @ 3/3.57MHz (apparently the first few had a 3MHz CPU) - R65C02P3 @ 3/3.57MHz (apparently the first few had a 3MHz CPU)
- 2*8KB ROM + 1*4KB ROM, 2*2KB RAM(HM6116) - 2*8KB ROM + 1*4KB ROM, 2*2KB RAM(HM6116+TMM2016)
Hardware notes (6085): Hardware notes (6085):
- PCB label 510-1084B01 - PCB label 510-1084B01
- R65C02P4 @ 4MHz - R65C02P4 @ 4MHz
- 3*8KB ROM(TMM2764), 2*2KB RAM(HM6116) - 3*8KB ROM(TMM2764), 2*2KB RAM(HM6116+TMM2016)
This is on the SC12B board, with enough modifications to support more leds and This is on the SC12B board, with enough modifications to support more leds and
magnetic chess board sensors. See sc12.cpp for a more technical description. magnetic chess board sensors. See sc12.cpp for a more technical description.
The first RAM chip is low-power, and battery-backed with a capacitor. This is
also mentioned in the manual. Maybe it does not apply to older PCBs.
TODO: TODO:
- is the initial AS12 3MHz version the same ROM as felega1? When it's configured - is the initial AS12 3MHz version the same ROM as felega1? When it's configured
at 3MHz and the CPU divider set to 2, the pace is the same as fscc12a. at 3MHz and the CPU divider set to 2, the pace is the same as fscc12a.
@ -31,6 +34,7 @@ TODO:
#include "bus/generic/slot.h" #include "bus/generic/slot.h"
#include "cpu/m6502/r65c02.h" #include "cpu/m6502/r65c02.h"
#include "machine/clock.h" #include "machine/clock.h"
#include "machine/nvram.h"
#include "machine/sensorboard.h" #include "machine/sensorboard.h"
#include "sound/dac.h" #include "sound/dac.h"
#include "video/pwm.h" #include "video/pwm.h"
@ -172,7 +176,8 @@ u8 as12_state::input_r(offs_t offset)
void as12_state::main_map(address_map &map) void as12_state::main_map(address_map &map)
{ {
map.unmap_value_high(); map.unmap_value_high();
map(0x0000, 0x0fff).ram(); map(0x0000, 0x07ff).ram().share("nvram");
map(0x0800, 0x0fff).ram();
map(0x1800, 0x1807).w(FUNC(as12_state::led_w)).nopr(); map(0x1800, 0x1807).w(FUNC(as12_state::led_w)).nopr();
map(0x2000, 0x5fff).r("cartslot", FUNC(generic_slot_device::read_rom)); map(0x2000, 0x5fff).r("cartslot", FUNC(generic_slot_device::read_rom));
map(0x6000, 0x6000).mirror(0x1fff).w(FUNC(as12_state::control_w)); map(0x6000, 0x6000).mirror(0x1fff).w(FUNC(as12_state::control_w));
@ -234,9 +239,12 @@ void as12_state::feleg(machine_config &config)
irq_clock.set_pulse_width(attotime::from_usec(17)); // active for 17us irq_clock.set_pulse_width(attotime::from_usec(17)); // active for 17us
irq_clock.signal_handler().set_inputline(m_maincpu, M6502_IRQ_LINE); irq_clock.signal_handler().set_inputline(m_maincpu, M6502_IRQ_LINE);
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
SENSORBOARD(config, m_board).set_type(sensorboard_device::MAGNETS); SENSORBOARD(config, m_board).set_type(sensorboard_device::MAGNETS);
m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess)); m_board->init_cb().set(m_board, FUNC(sensorboard_device::preset_chess));
m_board->set_delay(attotime::from_msec(150)); m_board->set_delay(attotime::from_msec(150));
m_board->set_nvram_enable(true);
// video hardware // video hardware
PWM_DISPLAY(config, m_display).set_size(9, 8); PWM_DISPLAY(config, m_display).set_size(9, 8);