查到了VRC7的引脚定义
. k8 q( y% ]4 X5 U3 r
5 l' i6 J0 r9 O$ q/ O; `* e3 T- V .---\/---.4 b, I$ \+ T9 s: M
PPU /RD -> | 01 48 | -> NC
) J3 m4 K: |" Y8 P PPU A13 -> | 02 47 | <- M26 `9 h; c/ B/ ^2 ^
GND -- | 03 46 | -> WRAM /CS
) Q- Q- ^) l" |- E+ A6 \# k8 W6 H R/W -> | 04 45 | <- /ROMSEL+ E+ k1 C0 c7 W, Q& \6 Y$ ~
/IRQ <- | 05 44 | -> PRG /CS
/ v3 W, V; X7 }7 ^$ K CIRAM A10 <- | 06 43 | -> Audio Out
9 B( Q; k& u e+ s7 g# K) @ CPU D0 -> | 07 42 | -- +5V, W; T: N4 q* a7 z! R
CPU D1 -> | 08 41 | -> CHR A17/ L X: I- ^! h, i
CPU D2 -> | 09 40 | -> CHR A16
P5 a, F7 K% `% z5 V CPU D3 -> | 10 39 | -> CHR A15
' P# Z; [% U0 s5 h$ K CPU D4 -> | 11 38 | -> CHR A14
0 t8 S0 \% c- Q CPU D5 -> | 12 37 | -> CHR A13
% W& t9 y5 m, o/ n CPU D6 -> | 13 36 | -> CHR A12
3 d; ~8 s) e: X+ B; ` CPU D7 -> | 14 35 | -> CHR A110 z8 D4 m4 \9 N' Y r
/DEBUG -> | 15 34 | -> CHR A10
! l* p' I" O1 v0 w# t0 \; q CPU A5 -> | 16 33 | <- PPU A12
# f* f F9 B- ?2 x8 [8 w Crystal X2 -> | 17 32 | <- PPU A11" W& j/ X/ `' {$ ]& ^$ S
Crystal X1 <- | 18 31 | <- PPU A10/ t9 k9 L, L* L. V, `
CPU An -> | 19 30 | -- +5V
9 x! e( y, W5 `: H1 F- ]. t0 Z PRG A13 <- | 20 29 | <- CPU A14
5 Z- U7 G2 c8 b4 A# `' N" T! w9 Q PRG A14 <- | 21 28 | <- CPU A13
" @, W4 x( ^. A; P PRG A15 <- | 22 27 | <- CPU A12
, Y# @# ^4 m( V' C PRG A16 <- | 23 26 | -> PRG A18( p4 a7 o) {5 ?0 A. D+ @
GND -- | 24 25 | -> PRG A17
* m. ]- |$ h0 s2 w2 b `--------'& K) P j" r$ E* Y& [3 z8 O
需要监测的感觉应该就连着CPU的这几条线吧? |