1 2 3 4 5 6 7 8 5V C2 10uF 2 1 GNDGND U1 +V inp -V inp +V out -V out AM1L-0505S-NZ 5 4 5V_1 C1 10uF VR1 LM1117-3.3V Vin Vout GNDVout 5V C20 100nF C3 10uF GNDA GNDA GND GND GND GND 5V_1 C5 GND C6 100nF 3V3 CANTX CANRX VDD2 VIA VOB GND2 8 7 6 5 C7 100nF U4 STR750FV2 GND C8 33nF 3V3 R B S U 0 0 1 9 9 8 9 7 9 6 9 5 9 4 9 3 9 2 9 1 9 0 9 9 8 8 8 7 8 6 8 5 8 4 8 3 8 2 8 1 8 0 8 9 7 8 7 7 7 6 7 C18 100nF S1 3 0 . 0 P 8 1 S S V O I _ D D V O I _ S S V 8 1 V 0 0 . 1 P 1 0 . 1 P 3 1 . 1 P 4 1 . 1 P 4 0 . 1 P 5 0 . 1 P 6 0 . 1 P 7 0 . 1 P 8 0 . 1 P 5 0 . 2 P 6 0 . 2 P 7 0 . 2 P 8 0 . 2 P 9 0 . 2 P 9 0 . 1 P 0 1 . 1 P 4 0 . 0 P 5 0 . 0 P 6 0 . 0 P 7 0 . 0 P 3V3 5V R22 10K R21 10K Q2 BC817-16W R23 100K GND GND R24 1K R B S U R2 4K7 3V3 C4 10uF 3V3 Q1 BC817-16W VREG_DIS VSS_IO VSSA_ADC P2.10 P2.11 VDDA_ADC VDD_IO P1.02 P1.03 USBDP USBDN CANRX/P0.14 CANTX/P0.15 P2.12 P2.13 WKP_STDBY/P1.15 NRSTIN NRSTOUT XRTC2 XRTC1 V18BKP VSSBKP VSS18 V18REG P2.14 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 GND GND GND GND C9 100nF 3V3 R17 22 R16 1.5K 5V 1 2 3 4 X1 VBUS D+ D- GND SHIELD 5 GND R18 22 C16 22pF R19 100K C21 100nF GND GND CANRX CANTX RESET R5 330 GND 1 2 C10 1uF GND GND C17 22pF GNDGND VCC 3 3V3 U5 VSS RST ST809 RESET C19 10nF C11 10uF GND 5 7 6 8 U2 VREF CANH CANL RS MCP2551 VDD TXD RXD GND 3 1 4 2 GNDA 100nF U3 VDD1 VOA VIB GND1 1 2 3 4 ISO7221B GNDA GNDA GND R10 10K R8 10K JTAG 2 4 6 8 10 1 3 5 7 9 P1 R13 0 RESET 3V3 R6 10K TMS TCK TRST 3V3 GND R7 10K GND TRST P1.12 P0.02 P0.01 P0.00 P0.31 P0.30 P0.29 P0.28 TEST VSS_IO P0.23 P2.04 P2.03 P2.02 P0.22 P0.21/UART1_TX P0.20/UART1_RX P1.19/JTMS P1.18/JTCK P1.17/JTDO P1.16/JTDI NJTRST P2.01 P2.00 P0.13/RTCK GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 R20 4.7K GND TMS TCK TDO TDI TRST RTCK GND R3 1K D1 R4 1K R9 10K TDI TDO RTCK RESET GND R11 10K GND C13 100nF 8 VCC SDA 5 3V3 GND R14 4.7K GND GND U6 A0 A1 A2 SCL WP GND M24C16 1 2 3 6 7 4 X T _ 0 T R A U / 1 1 X R _ 0 T R A U / 0 1 A D S _ C 2 I / 9 0 L C S _ C 2 I / 8 0 X T _ 2 T R A U / 5 2 X R _ 2 T R A U / 4 2 2 1 9 1 8 1 7 1 1 1 7 2 6 2 9 1 8 1 7 1 6 1 6 1 . 0 P . 0 P . 0 P . 0 P . 0 P . 2 P . 2 P . 2 P . 1 P . 0 P . 0 P . 0 P . 0 P . 0 P . 0 P . 0 P . 0 P . 2 P L L P _ A D D V O I _ D D V L L P _ A S S V O I _ S S V 5 1 . 2 P 2 T X 1 T X 6 2 7 2 8 2 9 2 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 3 0 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 0 5 tp2 tp1 R25 100 3V3 R12 100K R15 4.7K GND C12 100nF 3V3 GND R26 100 Y1 8MHz C14 22pF C15 22pF GND GND R1 100 GNDA J1 10 11 5 9 4 8 3 7 2 6 1 CAN bus GNDA 12 GNDA D2 NUP2105 3 GNDA A B C D A B C D 1 2 3 4 5 6 7 8 Title Size A3 Date: File: VSCP USB<=> CAN converter www.vscp.org Number Revision 1.0 2009.05.05 D:\Work\..\usb2can.SchDoc Sheet of Drawn By: www.edevices.lt Gediminas Simanskis