[sigrok-dumps.git] / spi / nes_gamepad / nes_gamepad_generated / README

-------------------------------------------------------------------------------
NES Gamepad signalling
-------------------------------------------------------------------------------

Synthetically generated NES gamepad signalling.

SPI settings are always:

Clock polarity = 1
Clock phase    = 0
Bit order      = msb-first
Word size      = 8

Chip-select is not used and must not be assigned to any channel.

        ___
   GND |o  \
   CUP |o o| VCC
 OUT 0 |o o| D3
    D1 |o o| D4
       -----
NES Gamepad Connector

VCC   - Power 5V
GND   - Ground
CUP   - Shift register clock (CLK)
OUT 0 - Shift register latch (optional)
D1    - Gamepad data (MISO)
D3    - Data (unused)
D4    - Data (unused)

Data pins D3 and D4 are not used by the standard game pad but by special
controllers like the Nintento Zapper light gun.


Logic analyzer setup
--------------------

The logic analyzer used was a DreamSourceLab DSLogic Plus (at 10 MHz):

  Probe       NES gamepad
  -----------------------
  0           OUT 0
  1           D1
  2           CUP


a.sr
----

Button press of button 'A'.

MISO bits: 01111111
MISO data: 7F
Button States: A


b.sr
----

Button press of button 'B'.

MISO bits: 10111111
MISO data: BF
Button States: B


select.sr
---------

Button press of button 'Select'.

MISO bits: 11011111
MISO data: DF
Button States: Select


start.sr
--------

Button press of button 'Start'.

MISO bits: 11101111
MISO data: EF
Button States: Start


north.sr
--------

Button press of button 'North'.

MISO bits: 11110111
MISO data: F7
Button States: North


south.sr
--------

Button press of button 'South'.

MISO bits: 11111011
MISO data: FB
Button States: South


west.sr
-------

Button press of button 'West'.

MISO bits: 11111101
MISO data: FD
Button States: West


east.sr
-------

Button press of button 'East'.

MISO bits: 11111110
MISO data: FE
Button States: East


a_b.sr
------

Button press of button 'A' and 'B'.

MISO bits: 00111111
MISO data: 3F
Button States: A + B


b_select_west.sr
----------------

Button press of button 'B' and 'Select' and 'West'.

MISO bits: 10011101
MISO data: 9D
Button States: B + Select + West


no_button.sr
------------

Controller connected but no button pressed.

MISO bits: 11111111
MISO data: FF
Button States: No button is pressed


unconnected.sr
--------------

Gamepad not connected.

MISO bits: 00000000
MISO data: 00
Button States: Gamepad is not connected.
Commit	Line	Data
09c8882c	1	-------------------------------------------------------------------------------
	2	NES Gamepad signalling
	3	-------------------------------------------------------------------------------
	4
	5	Synthetically generated NES gamepad signalling.
	6
	7	SPI settings are always:
	8
	9	Clock polarity = 1
	10	Clock phase = 0
	11	Bit order = msb-first
	12	Word size = 8
	13
	14	Chip-select is not used and must not be assigned to any channel.
	15
	16	___
	17	GND \|o \
	18	CUP \|o o\| VCC
	19	OUT 0 \|o o\| D3
	20	D1 \|o o\| D4
	21	-----
	22	NES Gamepad Connector
	23
	24	VCC - Power 5V
	25	GND - Ground
	26	CUP - Shift register clock (CLK)
	27	OUT 0 - Shift register latch (optional)
	28	D1 - Gamepad data (MISO)
	29	D3 - Data (unused)
	30	D4 - Data (unused)
	31
	32	Data pins D3 and D4 are not used by the standard game pad but by special
	33	controllers like the Nintento Zapper light gun.
	34
	35
	36	Logic analyzer setup
	37	--------------------
	38
	39	The logic analyzer used was a DreamSourceLab DSLogic Plus (at 10 MHz):
	40
	41	Probe NES gamepad
	42	-----------------------
	43	0 OUT 0
	44	1 D1
	45	2 CUP
	46
	47
	48	a.sr
	49	----
	50
	51	Button press of button 'A'.
	52
	53	MISO bits: 01111111
	54	MISO data: 7F
	55	Button States: A
	56
	57
	58	b.sr
	59	----
	60
	61	Button press of button 'B'.
	62
	63	MISO bits: 10111111
	64	MISO data: BF
65	Button States: B
66
67
68	select.sr
69	---------
70
71	Button press of button 'Select'.
72
73	MISO bits: 11011111
74	MISO data: DF
75	Button States: Select
76
77
78	start.sr
79	--------
80
81	Button press of button 'Start'.
82
83	MISO bits: 11101111
84	MISO data: EF
85	Button States: Start
86
87
88	north.sr
89	--------
90
91	Button press of button 'North'.
92
93	MISO bits: 11110111
94	MISO data: F7
95	Button States: North
96
97
98	south.sr
99	--------
100
101	Button press of button 'South'.
102
103	MISO bits: 11111011
104	MISO data: FB
105	Button States: South
106
107
108	west.sr
109	-------
110
111	Button press of button 'West'.
112
113	MISO bits: 11111101
114	MISO data: FD
115	Button States: West
116
117
118	east.sr
119	-------
120
121	Button press of button 'East'.
122
123	MISO bits: 11111110
124	MISO data: FE
125	Button States: East
126
127
128	a_b.sr
129	------
130
131	Button press of button 'A' and 'B'.
132
133	MISO bits: 00111111
134	MISO data: 3F
135	Button States: A + B
136
137
138	b_select_west.sr
139	----------------
140
141	Button press of button 'B' and 'Select' and 'West'.
142
143	MISO bits: 10011101
144	MISO data: 9D
145	Button States: B + Select + West
146
147
148	no_button.sr
149	------------
150
151	Controller connected but no button pressed.
152
153	MISO bits: 11111111
154	MISO data: FF
155	Button States: No button is pressed
156
157
158	unconnected.sr
159	--------------
160
161	Gamepad not connected.
162
163	MISO bits: 00000000
164	MISO data: 00
165	Button States: Gamepad is not connected.