-
Notifications
You must be signed in to change notification settings - Fork 0
/
A7800 Mega Adapter.sch
290 lines (290 loc) · 6.55 KB
/
A7800 Mega Adapter.sch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L atari_joystick:Atari_Joystick_Passive J1
U 1 1 5D1376D7
P 3700 3900
F 0 "J1" H 3700 4450 50 0000 C CNN
F 1 "Atari 7800" H 3700 3325 50 0000 C CNN
F 2 "RND:DSUB-9_Female_Horizontal_P2.77x2.84mm_EdgePinOffset7.70mm_Housed_MountingHolesOffset9.12mm" H 3700 3900 50 0001 C CNN
F 3 "" H 3700 3900 50 0001 C CNN
1 3700 3900
-1 0 0 -1
$EndComp
$Comp
L sega_joypad:sega_joypad J2
U 1 1 5D1378A3
P 8775 3900
F 0 "J2" H 8775 4450 50 0000 C CNN
F 1 "Mega Drive" H 8775 3325 50 0000 C CNN
F 2 "RND:DSUB-9_Male_Horizontal_P2.77x2.84mm_EdgePinOffset7.70mm_Housed_MountingHolesOffset9.12mm" H 8775 3900 50 0001 C CNN
F 3 "" H 8775 3900 50 0001 C CNN
1 8775 3900
1 0 0 -1
$EndComp
Text Label 8450 4300 2 60 ~ 0
MD_UP
Text Label 8450 3700 2 60 ~ 0
MD_RIGHT
Text Label 8450 3900 2 60 ~ 0
MD_LEFT
Text Label 8450 4100 2 60 ~ 0
MD_DOWN
Text GLabel 4075 3700 2 60 Input ~ 0
RIGHT
Text GLabel 5825 3900 0 60 Output ~ 0
LEFT
Text GLabel 5825 4100 0 60 Output ~ 0
DOWN
Text GLabel 5825 4300 0 60 Output ~ 0
UP
Text GLabel 5475 2425 0 60 Output ~ 0
FIRE
Text GLabel 4075 3900 2 60 Input ~ 0
LEFT
Text GLabel 5825 3700 0 60 Output ~ 0
RIGHT
Text GLabel 4075 4100 2 60 Input ~ 0
DOWN
Text GLabel 4075 4300 2 60 Input ~ 0
UP
Text GLabel 4075 4200 2 60 Input ~ 0
FIRE
$Comp
L power:VCC #PWR01
U 1 1 5D11DA0F
P 7800 3125
F 0 "#PWR01" H 7800 2975 50 0001 C CNN
F 1 "VCC" H 7800 3275 50 0000 C CNN
F 2 "" H 7800 3125 50 0001 C CNN
F 3 "" H 7800 3125 50 0001 C CNN
1 7800 3125
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR02
U 1 1 5D120002
P 4425 3800
F 0 "#PWR02" H 4425 3550 50 0001 C CNN
F 1 "GND" H 4425 3650 50 0000 C CNN
F 2 "" H 4425 3800 50 0001 C CNN
F 3 "" H 4425 3800 50 0001 C CNN
1 4425 3800
1 0 0 -1
$EndComp
Text Notes 7350 7500 0 60 ~ 0
C64 Mega Switcher
Text Notes 7000 6750 0 60 ~ 0
8bitdo has started producing new wired Sega Mega Drive/Genesis controllers, with that in\nmind I wanted to use it on my Atari 7800 which had horrible peripherals.
Wire Wire Line
5825 4300 8475 4300
Wire Wire Line
5825 4100 8475 4100
Wire Wire Line
5825 3900 8475 3900
Wire Wire Line
5825 3700 8475 3700
Wire Wire Line
7800 4000 8475 4000
Wire Wire Line
4000 3800 4425 3800
Wire Wire Line
7800 3125 7800 3500
Wire Wire Line
4000 3700 4075 3700
Wire Wire Line
4000 3900 4075 3900
Wire Wire Line
4000 4100 4075 4100
Wire Wire Line
4000 4200 4075 4200
Wire Wire Line
4000 4300 4075 4300
Text GLabel 4075 3600 2 60 Input ~ 0
PADDLE_A
Text Label 8450 3600 2 60 ~ 0
MD_BTN_C
Text Label 8450 4200 2 60 ~ 0
MD_BTN_B
Text Notes 10550 7650 0 60 ~ 0
A
$Comp
L transistors:2N3906 Q2
U 1 1 5DA4A3D5
P 7000 2700
F 0 "Q2" H 7200 2775 50 0000 L CNN
F 1 "2N3906" H 7200 2700 50 0000 L CNN
F 2 "TO_SOT_Packages_THT:TO-92_Inline_Wide" H 7200 2625 50 0001 L CIN
F 3 "" H 7000 2700 50 0001 L CNN
1 7000 2700
-1 0 0 1
$EndComp
Wire Wire Line
8475 3500 7800 3500
Connection ~ 7800 3500
Wire Wire Line
8475 3800 7900 3800
Wire Wire Line
7900 3800 7900 4425
$Comp
L power:GND #PWR03
U 1 1 5DA4CB43
P 7900 4425
F 0 "#PWR03" H 7900 4175 50 0001 C CNN
F 1 "GND" H 7900 4275 50 0000 C CNN
F 2 "" H 7900 4425 50 0001 C CNN
F 3 "" H 7900 4425 50 0001 C CNN
1 7900 4425
1 0 0 -1
$EndComp
$Comp
L Device:R R4
U 1 1 5DA4D38B
P 7350 2700
F 0 "R4" V 7430 2700 50 0000 C CNN
F 1 "1k" V 7350 2700 50 0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 7280 2700 50 0001 C CNN
F 3 "" H 7350 2700 50 0001 C CNN
1 7350 2700
0 -1 -1 0
$EndComp
$Comp
L Device:R R3
U 1 1 5DA4D819
P 6900 3200
F 0 "R3" V 6980 3200 50 0000 C CNN
F 1 "620" V 6900 3200 50 0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6830 3200 50 0001 C CNN
F 3 "" H 6900 3200 50 0001 C CNN
1 6900 3200
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR04
U 1 1 5DA4E413
P 6900 3350
F 0 "#PWR04" H 6900 3100 50 0001 C CNN
F 1 "GND" H 6900 3200 50 0000 C CNN
F 2 "" H 6900 3350 50 0001 C CNN
F 3 "" H 6900 3350 50 0001 C CNN
1 6900 3350
1 0 0 -1
$EndComp
Wire Wire Line
8475 3600 7600 3600
Wire Wire Line
7600 3600 7600 2700
Wire Wire Line
7600 2700 7500 2700
$Comp
L transistors:2N3906 Q1
U 1 1 5DA4F323
P 5650 2700
F 0 "Q1" H 5850 2775 50 0000 L CNN
F 1 "2N3906" H 5850 2700 50 0000 L CNN
F 2 "TO_SOT_Packages_THT:TO-92_Inline_Wide" H 5850 2625 50 0001 L CIN
F 3 "" H 5650 2700 50 0001 L CNN
1 5650 2700
-1 0 0 1
$EndComp
$Comp
L Device:R R2
U 1 1 5DA4F329
P 6000 2700
F 0 "R2" V 6080 2700 50 0000 C CNN
F 1 "1k" V 6000 2700 50 0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 5930 2700 50 0001 C CNN
F 3 "" H 6000 2700 50 0001 C CNN
1 6000 2700
0 -1 -1 0
$EndComp
$Comp
L Device:R R1
U 1 1 5DA4F32F
P 5550 3200
F 0 "R1" V 5630 3200 50 0000 C CNN
F 1 "620" V 5550 3200 50 0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 5480 3200 50 0001 C CNN
F 3 "" H 5550 3200 50 0001 C CNN
1 5550 3200
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR05
U 1 1 5DA4F335
P 5550 3350
F 0 "#PWR05" H 5550 3100 50 0001 C CNN
F 1 "GND" H 5550 3200 50 0000 C CNN
F 2 "" H 5550 3350 50 0001 C CNN
F 3 "" H 5550 3350 50 0001 C CNN
1 5550 3350
1 0 0 -1
$EndComp
Wire Wire Line
6150 2700 6250 2700
Wire Wire Line
6250 2700 6250 4200
Wire Wire Line
6250 4200 8475 4200
Wire Wire Line
6900 2900 6900 2975
Wire Wire Line
5550 2900 5550 2975
Wire Wire Line
5475 2425 5550 2425
Wire Wire Line
6900 2425 6900 2500
Text GLabel 4075 3500 2 60 Input ~ 0
PADDLE_B
Wire Wire Line
4075 3500 4000 3500
Wire Wire Line
4075 3600 4000 3600
Text GLabel 5475 2975 0 60 Output ~ 0
PADDLE_A
Wire Wire Line
5475 2975 5550 2975
Connection ~ 5550 2975
Text GLabel 6825 2975 0 60 Output ~ 0
PADDLE_B
Wire Wire Line
6825 2975 6900 2975
Connection ~ 6900 2975
Wire Wire Line
5550 2425 5550 2500
Connection ~ 5550 2425
Wire Wire Line
4000 4000 4625 4000
$Comp
L power:VCC #PWR06
U 1 1 5DA626F8
P 4625 4000
F 0 "#PWR06" H 4625 3850 50 0001 C CNN
F 1 "VCC" H 4625 4150 50 0000 C CNN
F 2 "" H 4625 4000 50 0001 C CNN
F 3 "" H 4625 4000 50 0001 C CNN
1 4625 4000
1 0 0 -1
$EndComp
Wire Wire Line
7800 3500 7800 4000
Wire Wire Line
5550 2975 5550 3050
Wire Wire Line
6900 2975 6900 3050
Wire Wire Line
5550 2425 6900 2425
$EndSCHEMATC