查到了VRC7的引脚定义
1 t T+ v- x+ Y1 A. D
8 }+ D+ y( D, `! p1 z, W3 a .---\/---.. Q% a: a1 g N8 I/ c m& I( R
PPU /RD -> | 01 48 | -> NC% o% o( v, j2 z; i+ b- z& t8 @& e
PPU A13 -> | 02 47 | <- M2 O0 B% b$ G9 S# b
GND -- | 03 46 | -> WRAM /CS8 f. B6 K" t* X6 e% ^& R) c( C
R/W -> | 04 45 | <- /ROMSEL
' m' I; D7 S: R6 H /IRQ <- | 05 44 | -> PRG /CS& g* H% p7 U; F+ C+ A
CIRAM A10 <- | 06 43 | -> Audio Out
, V8 G C4 ]2 r CPU D0 -> | 07 42 | -- +5V/ f6 g" ? Q* E9 w, n
CPU D1 -> | 08 41 | -> CHR A17- D" R& C' j; T: `- q, r, S
CPU D2 -> | 09 40 | -> CHR A16
4 e! n* X6 ^' a) p. d CPU D3 -> | 10 39 | -> CHR A15
' i* o- `5 ~& L& ^1 ^ CPU D4 -> | 11 38 | -> CHR A14+ z/ t F) I8 W3 k( w
CPU D5 -> | 12 37 | -> CHR A13
4 U* ?0 g7 L8 k CPU D6 -> | 13 36 | -> CHR A121 p( l3 ^$ Y" \' o% u, p
CPU D7 -> | 14 35 | -> CHR A113 E4 p) o9 A; ^( a" J
/DEBUG -> | 15 34 | -> CHR A10# p$ W( j) p0 _8 J! v( e6 h
CPU A5 -> | 16 33 | <- PPU A12
3 w/ B5 J6 @% M Crystal X2 -> | 17 32 | <- PPU A112 k: s0 k# e( I# P- }' k
Crystal X1 <- | 18 31 | <- PPU A10
5 l7 v, C9 e% t# M; H CPU An -> | 19 30 | -- +5V% ^3 V7 l( S6 ^0 E+ w* H' A
PRG A13 <- | 20 29 | <- CPU A14
6 ?# R* X$ I2 j% @: k6 |" _; S9 y# Z PRG A14 <- | 21 28 | <- CPU A13
% o& u$ V5 r7 J2 V" ?3 Y' J PRG A15 <- | 22 27 | <- CPU A12
' `& K F$ n& E- U- j3 `+ n PRG A16 <- | 23 26 | -> PRG A189 V4 [5 J5 B: h$ T4 @% ^- |
GND -- | 24 25 | -> PRG A17% H, D3 |3 j( Q0 }7 [8 Q+ ^1 _
`--------'& \: B0 O& S7 v( L) h1 |
需要监测的感觉应该就连着CPU的这几条线吧? |