' S% Q5 u1 W6 u: h7 ~/ h k* K下面的網站提供他們個人在 PCB Layout 上的經驗值： # l1 s- C( N" w2 w; v- kBoth SPI and Microwire are generally limited to on-board communications and traces of no longer than 6 inches, although longer distances (up to 10 feet) can be achieved given proper capacitance and lower bit rates. ! K( y( e! f5 a1 E , l/ s: F8 r/ u0 Q @; S9 y& dhttp://www.embedded.com/design/connectivity/4023975/Serial-Protocols-Compared 5 C- Z) {( X5 d2 q. G S , m$ d3 I9 h5 X ) s1 A- \7 T, E1 c- l' z1 S
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发表于 2016-11-2 07:52
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发表于 2016-11-2 09:42
