, r8 z* {* X& I3 i6 H下面的網站提供他們個人在 PCB Layout 上的經驗值:9 E" J2 j9 i. W8 s" t( q
Both 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. 2 V0 U$ E6 u; @* x; a