From a2a19de794d0dd186da185ef77b62a98b8980838 Mon Sep 17 00:00:00 2001 From: RobertoFresca Date: Sun, 8 Oct 2017 16:05:32 -0300 Subject: Note Chance: Rearranged the test panel lamps to be D7-->D0. Also arranged the notes to talk about ports and lines instead of lamps. Added technical notes about the 4-bit counter found in port FFh. [Roberto Fresca] --- src/mame/drivers/notechan.cpp | 17 ++++++----- src/mame/layout/notechan.lay | 67 ++++++++++++++++++++++--------------------- 2 files changed, 45 insertions(+), 39 deletions(-) diff --git a/src/mame/drivers/notechan.cpp b/src/mame/drivers/notechan.cpp index d7c37fcecad..b702d1b8dd3 100644 --- a/src/mame/drivers/notechan.cpp +++ b/src/mame/drivers/notechan.cpp @@ -315,15 +315,18 @@ static INPUT_PORTS_START( notechan ) Port FAh: - (1) Pulsed under reset, activates lamp 21 and triggers sample #20 (boing). Maybe it's - the 'start' button. + (1) Pulsed under reset, activates port FAh-D5 (lamp 21) and triggers sample #20 (boing + or FX sound, depending of the OKI bank). Maybe it's the 'start' button. (2) Pulsing and keep pressed under reset, triggers the sample #01 (cling) and starts - a sequence of lamps (24-25-26). Then triggers sample #04 (voice). After a little - while also triggers sample #05 (voice). - - (3) Pulsing this input lites lamp 17 and triggers sample #01 (cling). Maybe it's - the 'coin-in' button. + a sequence of 4-lines output through port FFh D3-D2-D1-D0 (lamps 27-26-25-24) + that seems a 4-bits countdown (maybe related to the 7segment LED that counts the + credits). Then triggers sample #04 (voice or effect depending of the OKI bank). + After a little while also triggers sample #05 (voice). + Maybe it's some kind of hardware testing mode... + + (3) Pulsing this input activates port FAh-D1 (lamp 17) and triggers sample #01 (cling). + Maybe it's the 'coin-in' button. */ PORT_START("DSW") diff --git a/src/mame/layout/notechan.lay b/src/mame/layout/notechan.lay index d3cc330975f..811badcf7dc 100644 --- a/src/mame/layout/notechan.lay +++ b/src/mame/layout/notechan.lay @@ -4,6 +4,9 @@ - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + - + -- cgit v1.2.3-70-g09d2