EasyARM1138(V1.20)原理图。

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1 2 3 4 5 6 A USBPWR U33V Vout 2 U1 SPX111733V C2 47F16V PWR D1 Red R1 47k U5V 3 Vin C1 47F16V 4 Vout GND 1 GND U33V DBG D2 Green R2 12k U5V C4 100nF C5 100nF U5V R3 470 GND C3 100nF 6 4 2 4 3 4 1 1 3 B CZ1 SHELL VBUS D D GND SHELL 6 1 2 3 4 5 U5V R4 30 R5 30 USB C9 1nF2kV JP2 U5V GND U5V URST GND CN3 GND U5V 8 7 6 5 U3 VCC NC ORG GND CS SK DI DO GND 1 2 3 4 GND CAT93C46 C10 22pF C11 22pF GND C8 GND 100nF R6 15k 6 8 7 5 4 Y1 6MHz 43 44 48 1 2 47 GND U5V R7 10k R8 22k JTAG C C V C C V C C V A 3......