查到了VRC7的引脚定义 . F; r% u8 V) P6 R- T, [) }
& G5 r- M) w9 p+ d' C% N7 K+ B .---\/---.
8 |, v5 }. y; H PPU /RD -> | 01 48 | -> NC( r' V, o" l+ x* p
PPU A13 -> | 02 47 | <- M2
- y. h9 `9 X4 M GND -- | 03 46 | -> WRAM /CS
" \3 K9 {7 i& ?, Q2 C/ _ R/W -> | 04 45 | <- /ROMSEL \1 S( e3 b. v, ], a
/IRQ <- | 05 44 | -> PRG /CS5 t7 ?$ [/ C" `1 F) W4 t% h
CIRAM A10 <- | 06 43 | -> Audio Out. J B' u) z" S, I5 {' \
CPU D0 -> | 07 42 | -- +5V; b& o+ J7 c/ c! W
CPU D1 -> | 08 41 | -> CHR A17
; u6 U l0 g9 Q0 r9 ^) a CPU D2 -> | 09 40 | -> CHR A16
1 R( B2 U" A/ `( v8 w4 R CPU D3 -> | 10 39 | -> CHR A15
! ~% U$ w7 s/ p0 r CPU D4 -> | 11 38 | -> CHR A14) y1 l/ M7 P0 f- x3 n
CPU D5 -> | 12 37 | -> CHR A138 J( o$ h; U, U2 [/ r
CPU D6 -> | 13 36 | -> CHR A12
/ a! |/ w5 ~& P) u1 E" r CPU D7 -> | 14 35 | -> CHR A117 r% S- t/ D$ H- b, a
/DEBUG -> | 15 34 | -> CHR A10/ l+ v' j: F! w5 O1 r& E
CPU A5 -> | 16 33 | <- PPU A12# v3 \4 Z1 D6 I$ N; {
Crystal X2 -> | 17 32 | <- PPU A11' i- j. ~' [. g' y' U1 O$ ?. q
Crystal X1 <- | 18 31 | <- PPU A10
7 k- {0 E6 B9 t+ ]9 V CPU An -> | 19 30 | -- +5V. ]9 E7 T' R) w2 m+ t
PRG A13 <- | 20 29 | <- CPU A142 p7 h0 N: k1 n: J, Y
PRG A14 <- | 21 28 | <- CPU A13
% d2 B/ y7 }: G! K0 B PRG A15 <- | 22 27 | <- CPU A125 w' R6 x! j# U( R" R+ Q' K1 }2 A
PRG A16 <- | 23 26 | -> PRG A183 s! S9 H" e9 l; c. [; \. f
GND -- | 24 25 | -> PRG A176 ^5 Y6 w8 v4 L
`--------'5 o1 R5 o" {8 b' }5 q! c
需要监测的感觉应该就连着CPU的这几条线吧? |