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原理图(USB_HUB_HAT_Schematic_).pdf

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1 2 3 4 5 6 7 8 A B C D 5V R2 10K GND PWR GND 5V C1 1uF USB.J2 VBUS D- D+ ID GND SHIELD1 SHIELD2 SHIELD3 SHIELD4 USB 1 2 3 4 5 6 7 8 9 4 5 4 5 4 5 4 5 H4 GND GND VBUS DATA- DATA+ GND USB HOST1 H3 GND GND VBUS DATA- DATA+ GND USB HOST1 H2 GND GND VBUS DATA- DATA+ GND USB HOST1 H1 GND GND VBUS DATA- DATA+ GND USB HOST1 0 1 2 3 0 1 2 3 0 1 2 3 0 1 2 3 GND GND GND GND GND C2 4.7uF GND 7 6 C3 0.1uF 3 8 5 4 U1 REGIN VDD RST SUSPEND SUSPEND RI DCD DTR DSR TXD RXD RTS CTS GND VBUS D- D+ CP2102 9 12 11 2 1 28 27 26 25 24 23 R1 R3 4.7k 10k 5V GND P_RX P_TX L_RX L_TX R11 1k R12 1k 3.3V 3.3V DRV L_USB2 L_USB4 L_USB1 L_USB3 R5 10K LED2 R6 10K LED1 GND 5V GND 1 2 Y1 12M HUB_1.8V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 2.7K R10 U2 VSS XOUT XIN DM4 DP4 DM3 DP3 DM2 DP2 DM1 DP1 VD18_O VD33 REXT FE1_1S 28 VD18 27 TESTJ 26 OVCJ 25 PWRJ 24 LED2 23 LED1 22 DRV 21 VD33_0 20 VDD5 19 BUSJ VBUSM 18 17 XRSTJ 16 DPU 15 DMU GND 104 10uF C6 C7 HUB_3.3V aveshareW USB HUB HAT BCM wPi 2 3 4 17 27 22 10 9 11 5 6 13 19 26 8 9 7 0 2 3 12 13 14 21 22 23 24 25 3.3V P_SDA P_SCL P4 GND P17 P27 P22 3.3V P_MOSI P_MISO P_SCK GND ID_SD P5 P6 P13 P19 P26 GND P1 2 1 4 3 6 5 8 7 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Header 20X2 5V 5V GND P_TX P_RX P18 GND P23 P24 GND P25 P_CE0 P_CE1 ID_SC GND GND P12 GND P16 P20 P21 wPi BCM 15 16 1 4 5 6 10 11 26 27 28 29 14 15 18 23 24 25 8 7 12 16 20 21 HUB_1.8V C4 10uF 104 C5 HUB_3.3V GND HUB_3.3V LED2 LED1 DRV HUB_3.3V 5V R7 100K R8 100K R9 100K GND 9 8 7 6 5 4 3 2 1 5V USB.J1 SHIELD4 SHIELD3 SHIELD2 SHIELD1 GND ID D+ D- VBUS USB A B C D 1 2 3 4 5 6 7 8
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