diff options
author | Vas Crabb <vas@vastheman.com> | 2018-08-26 19:59:54 +1000 |
---|---|---|
committer | Vas Crabb <vas@vastheman.com> | 2018-08-26 19:59:54 +1000 |
commit | f70581a7a90b5a9cba6ea52dfe6ebc940181a7ff (patch) | |
tree | f5ba51a878fda312e5a5e0939f366e19f41140e9 | |
parent | 4b8a3b854a2ffc114e1a92dc7c6b2ccc4442bcf6 (diff) |
hook up Amiga CDTV keyboard reset
-rw-r--r-- | src/mame/drivers/amiga.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/mame/drivers/amiga.cpp b/src/mame/drivers/amiga.cpp index ffa5bd40d63..f235f1440e0 100644 --- a/src/mame/drivers/amiga.cpp +++ b/src/mame/drivers/amiga.cpp @@ -74,6 +74,10 @@ different components: * BAS32L diode for power-on reset * This gives delays of 152ms, 176µs, and 704ms +The equivalent circuit in the Amiga CDTV has the same thresholds as the +Amiga 2000, but uses 1kΩ resistors for timing. This gives delays of +11.2ms, 7.43ms, and 27.5ms. + */ DECLARE_DEVICE_TYPE(A2000_KBRESET, a2000_kbreset_device) @@ -206,7 +210,7 @@ private: u8 m_c814_charging = 1U; // U805 pin 2 }; -DEFINE_DEVICE_TYPE(A2000_KBRESET, a2000_kbreset_device, "a2000kbrst", "Amiga 1000/2000 keyboard reset circuit") +DEFINE_DEVICE_TYPE(A2000_KBRESET, a2000_kbreset_device, "a2000kbrst", "Amiga 1000/2000/CDTV keyboard reset circuit") //************************************************************************** @@ -1762,6 +1766,9 @@ MACHINE_CONFIG_START(cdtv_state::cdtv) auto &kbd(AMIGA_KEYBOARD_INTERFACE(config, "kbd", amiga_keyboard_devices, "a2000_us")); kbd.kclk_handler().set("cia_0", FUNC(mos8520_device::cnt_w)); kbd.kdat_handler().set("cia_0", FUNC(mos8520_device::sp_w)); + A2000_KBRESET(config, "kbrst") + .set_delays(attotime::from_usec(11238), attotime::from_usec(7432), attotime::from_usec(27539)) + .kbrst_cb().set(FUNC(a1000_state::kbreset_w)); // main cpu MCFG_DEVICE_ADD("maincpu", M68000, amiga_state::CLK_7M_PAL) |