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path: root/hardware/prototype/entropykey.net
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(export (version D)
  (design
    (source /home/dsilvers/dev-git/entropykey/hardware/prototype/entropykey.sch)
    (date "Sat 20 Apr 2019 14:32:41 BST")
    (tool "Eeschema 5.0.2+dfsg1-1~bpo9+1")
    (sheet (number 1) (name /) (tstamps /)
      (title_block
        (title "Entropy Key Prototype")
        (company)
        (rev)
        (date)
        (source entropykey.sch)
        (comment (number 1) (value ""))
        (comment (number 2) (value ""))
        (comment (number 3) (value ""))
        (comment (number 4) (value "")))))
  (components
    (comp (ref U2)
      (value STM32F103CBTx)
      (footprint Package_QFP:LQFP-48_7x7mm_P0.5mm)
      (datasheet http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00161566.pdf)
      (fields
        (field (name LCSC) C8304))
      (libsource (lib MCU_ST_STM32F1) (part STM32F103CBTx) (description "ARM Cortex-M3 MCU, 128KB flash, 20KB RAM, 72MHz, 2-3.6V, 37 GPIO, LQFP-48"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB1C7C2))
    (comp (ref J1)
      (value USB_B)
      (footprint Connector_USB:USB_B_OST_USB-B1HSxx_Horizontal)
      (datasheet " ~")
      (fields
        (field (name LCSC) C46392))
      (libsource (lib Connector) (part USB_B) (description "USB Type B connector"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB1CA5E))
    (comp (ref U1)
      (value USBUF01W6)
      (footprint Package_TO_SOT_SMD:SOT-23-6)
      (fields
        (field (name LCSC) C123726))
      (libsource (lib extras) (part USBUF01W6) (description ""))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB1EB77))
    (comp (ref FB2)
      (value BLM)
      (footprint Inductor_SMD:L_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part Ferrite_Bead) (description "Ferrite bead"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB1E4B1))
    (comp (ref C2)
      (value 10nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C100042))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB1E5C8))
    (comp (ref FB3)
      (value BLM)
      (footprint Inductor_SMD:L_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part Ferrite_Bead) (description "Ferrite bead"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB1EC12))
    (comp (ref C3)
      (value 10nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C100042))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB1F451))
    (comp (ref R1)
      (value 22R)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB24C49))
    (comp (ref J2)
      (value Conn_01x04)
      (footprint Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical)
      (datasheet ~)
      (libsource (lib Connector_Generic) (part Conn_01x04) (description "Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB2CB2A))
    (comp (ref Y1)
      (value 8MHz)
      (footprint Crystal:Crystal_SMD_5032-4Pin_5.0x3.2mm)
      (datasheet ~)
      (fields
        (field (name LCSC) C133333))
      (libsource (lib Device) (part Crystal_GND24_Small) (description "Four pin crystal, GND on pins 2 and 4, small symbol"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB301AE))
    (comp (ref R2)
      (value 390R)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB30D55))
    (comp (ref C11)
      (value 22pF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C296053))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB30DC3))
    (comp (ref C12)
      (value 22pF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C296053))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB30E69))
    (comp (ref J3)
      (value Conn_01x03)
      (footprint Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical)
      (datasheet ~)
      (libsource (lib Connector_Generic) (part Conn_01x03) (description "Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/)"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB396C3))
    (comp (ref SW1)
      (value 12/34)
      (footprint extras:PushButton_7.8x6mm)
      (fields
        (field (name LCSC) C294505))
      (libsource (lib Switch) (part SW_Push) (description "Push button switch, generic, two pins"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB3D862))
    (comp (ref R3)
      (value 10K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB3DBB7))
    (comp (ref U3)
      (value SC662K-3.3V)
      (footprint Package_TO_SOT_SMD:SOT-23)
      (datasheet http://www.ti.com/lit/ds/symlink/tlv1117.pdf)
      (fields
        (field (name LCSC) C83932))
      (libsource (lib Regulator_Linear) (part TLV1117-33) (description "800mA Low-Dropout Linear Regulator, 3.3V fixed output, TO-220/TO-252/TO-263/SOT-223"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB45B48))
    (comp (ref FB1)
      (value BLM)
      (footprint Inductor_SMD:L_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part Ferrite_Bead) (description "Ferrite bead"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB45E9C))
    (comp (ref C1)
      (value 1uF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C90540))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB45F0F))
    (comp (ref C4)
      (value 10uF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C237435))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB45F72))
    (comp (ref C5)
      (value 100nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C282670))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB45FDC))
    (comp (ref C6)
      (value 100nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C282670))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB4627A))
    (comp (ref C7)
      (value 100nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C282670))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB462E6))
    (comp (ref C8)
      (value 10nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C100042))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB46355))
    (comp (ref C9)
      (value 100nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C282670))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB463C7))
    (comp (ref C10)
      (value 10nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C100042))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB4643A))
    (comp (ref J4)
      (value Conn_01x04)
      (footprint Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical)
      (datasheet ~)
      (libsource (lib Connector_Generic) (part Conn_01x04) (description "Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBD24C5))
    (comp (ref U4)
      (value MT3540)
      (footprint Package_TO_SOT_SMD:SOT-23-5)
      (fields
        (field (name LCSC) C181783))
      (libsource (lib extras) (part MT3540) (description ""))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB253D9))
    (comp (ref L1)
      (value L)
      (footprint extras:Inductor_SMD_3x3x1.2mm)
      (datasheet ~)
      (fields
        (field (name LCSC) C218837))
      (libsource (lib Device) (part L) (description Inductor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB254A6))
    (comp (ref C13)
      (value 10uF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C237435))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB255BC))
    (comp (ref C14)
      (value 10nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C100042))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB25648))
    (comp (ref R6)
      (value 150K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB61CE3))
    (comp (ref R7)
      (value 10K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB61D8B))
    (comp (ref R5)
      (value 10K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBA24D4))
    (comp (ref R4)
      (value 22R)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBB9883))
    (comp (ref C15)
      (value 10uF)
      (footprint Capacitor_SMD:C_1206_3216Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C76666))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBC4291))
    (comp (ref C16)
      (value 100nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C282670))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBC43CA))
    (comp (ref D1)
      (value MMBD4148CA)
      (footprint Diode_SMD:D_SOT-23_NKA)
      (datasheet ~)
      (fields
        (field (name LCSC) C181116))
      (libsource (lib Device) (part D_Schottky) (description "Schottky diode"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBF0CF3))
    (comp (ref FB4)
      (value BLM)
      (footprint Inductor_SMD:L_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part Ferrite_Bead) (description "Ferrite bead"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBFF346))
    (comp (ref U5)
      (value 74HC04)
      (footprint Package_SO:TSSOP-14_4.4x5mm_P0.65mm)
      (datasheet http://www.nxp.com/documents/data_sheet/74HC_HCT04.pdf)
      (fields
        (field (name LCSC) C129521))
      (libsource (lib 74xx) (part 74HC04) (description "hex inverter"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CC4CF93))
    (comp (ref FB5)
      (value BLM)
      (footprint Inductor_SMD:L_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part Ferrite_Bead) (description "Ferrite bead"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB52D9E))
    (comp (ref C17)
      (value 1uF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C90540))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB52EB2))
    (comp (ref C18)
      (value 10nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C100042))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CB52F6A))
    (comp (ref Q1)
      (value Q_NPN_BEC)
      (footprint Package_TO_SOT_SMD:SOT-23)
      (datasheet ~)
      (fields
        (field (name LCSC) C181168))
      (libsource (lib Device) (part Q_NPN_BEC) (description "NPN transistor, base/emitter/collector"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBBBE15))
    (comp (ref Q3)
      (value Q_NPN_BEC)
      (footprint Package_TO_SOT_SMD:SOT-23)
      (datasheet ~)
      (fields
        (field (name LCSC) C181168))
      (libsource (lib Device) (part Q_NPN_BEC) (description "NPN transistor, base/emitter/collector"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBBBEC5))
    (comp (ref R8)
      (value 15K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBE9978))
    (comp (ref C19)
      (value 10nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C100042))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBE9A6B))
    (comp (ref C21)
      (value 100nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C282670))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBE9B34))
    (comp (ref R10)
      (value 4K7)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBEA4D3))
    (comp (ref R12)
      (value 22R)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CC83F5F))
    (comp (ref R14)
      (value 10K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CD0131C))
    (comp (ref C23)
      (value 100nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C282670))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CD5BAC5))
    (comp (ref C25)
      (value 100nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C282670))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CD688E1))
    (comp (ref R16)
      (value 10K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CDAA3C1))
    (comp (ref Q2)
      (value Q_NPN_BEC)
      (footprint Package_TO_SOT_SMD:SOT-23)
      (datasheet ~)
      (fields
        (field (name LCSC) C181168))
      (libsource (lib Device) (part Q_NPN_BEC) (description "NPN transistor, base/emitter/collector"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CE7F045))
    (comp (ref Q4)
      (value Q_NPN_BEC)
      (footprint Package_TO_SOT_SMD:SOT-23)
      (datasheet ~)
      (fields
        (field (name LCSC) C181168))
      (libsource (lib Device) (part Q_NPN_BEC) (description "NPN transistor, base/emitter/collector"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CE7F04C))
    (comp (ref R9)
      (value 15K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CE7F05A))
    (comp (ref C20)
      (value 10nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C100042))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CE7F061))
    (comp (ref C22)
      (value 100nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C282670))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CE7F068))
    (comp (ref R11)
      (value 4K7)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CE7F06F))
    (comp (ref R13)
      (value 22R)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CE7F091))
    (comp (ref R15)
      (value 10K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CE7F09B))
    (comp (ref C24)
      (value 100nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C282670))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CE7F0A6))
    (comp (ref C26)
      (value 100nF)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (fields
        (field (name LCSC) C282670))
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CE7F0AD))
    (comp (ref R17)
      (value 10K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CE7F0BB))
    (comp (ref R18)
      (value 22R)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CC156A3))
    (comp (ref R19)
      (value 10K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CC956C4))
    (comp (ref R20)
      (value 10K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CC95780))
    (comp (ref R21)
      (value 10K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CC95834))
    (comp (ref R22)
      (value 10K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CC958EE))
    (comp (ref R23)
      (value 150K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CD65297))
    (comp (ref R24)
      (value 15K)
      (footprint Resistor_SMD:R_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part R) (description Resistor))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CD65371))
    (comp (ref TP2)
      (value TestPoint_Probe)
      (footprint TestPoint:TestPoint_Pad_D1.5mm)
      (datasheet ~)
      (libsource (lib Connector) (part TestPoint_Probe) (description "test point (alternative probe-style design)"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBC51DD))
    (comp (ref TP3)
      (value TestPoint_Probe)
      (footprint TestPoint:TestPoint_Pad_D1.5mm)
      (datasheet ~)
      (libsource (lib Connector) (part TestPoint_Probe) (description "test point (alternative probe-style design)"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBC6603))
    (comp (ref TP4)
      (value TestPoint_Probe)
      (footprint TestPoint:TestPoint_Pad_D1.5mm)
      (datasheet ~)
      (libsource (lib Connector) (part TestPoint_Probe) (description "test point (alternative probe-style design)"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBC86D8))
    (comp (ref TP1)
      (value TestPoint_Probe)
      (footprint TestPoint:TestPoint_Pad_D1.5mm)
      (datasheet ~)
      (libsource (lib Connector) (part TestPoint_Probe) (description "test point (alternative probe-style design)"))
      (sheetpath (names /) (tstamps /))
      (tstamp 5CBCC0B0)))
  (libparts
    (libpart (lib 74xx) (part 74HCT04)
      (aliases
        (alias 74HC14)
        (alias 74HC04)
        (alias 74LS14))
      (description "hex inverter")
      (docs http://www.nxp.com/documents/data_sheet/74HC_HCT04.pdf)
      (footprints
        (fp DIP?14*))
      (fields
        (field (name Reference) U)
        (field (name Value) 74HCT04))
      (pins
        (pin (num 1) (name ~) (type input))
        (pin (num 2) (name ~) (type output))
        (pin (num 3) (name ~) (type input))
        (pin (num 4) (name ~) (type output))
        (pin (num 5) (name ~) (type input))
        (pin (num 6) (name ~) (type output))
        (pin (num 7) (name GND) (type power_in))
        (pin (num 8) (name ~) (type output))
        (pin (num 9) (name ~) (type input))
        (pin (num 10) (name ~) (type output))
        (pin (num 11) (name ~) (type input))
        (pin (num 12) (name ~) (type output))
        (pin (num 13) (name ~) (type input))
        (pin (num 14) (name VCC) (type power_in))))
    (libpart (lib Connector) (part TestPoint_Probe)
      (description "test point (alternative probe-style design)")
      (docs ~)
      (footprints
        (fp Pin*)
        (fp Test*))
      (fields
        (field (name Reference) TP)
        (field (name Value) TestPoint_Probe))
      (pins
        (pin (num 1) (name 1) (type passive))))
    (libpart (lib Connector) (part USB_B)
      (description "USB Type B connector")
      (docs " ~")
      (footprints
        (fp USB*))
      (fields
        (field (name Reference) J)
        (field (name Value) USB_B))
      (pins
        (pin (num 1) (name VBUS) (type power_out))
        (pin (num 2) (name D-) (type passive))
        (pin (num 3) (name D+) (type passive))
        (pin (num 4) (name GND) (type power_out))
        (pin (num 5) (name Shield) (type passive))))
    (libpart (lib Connector_Generic) (part Conn_01x03)
      (description "Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/)")
      (docs ~)
      (footprints
        (fp Connector*:*_1x??_*))
      (fields
        (field (name Reference) J)
        (field (name Value) Conn_01x03))
      (pins
        (pin (num 1) (name Pin_1) (type passive))
        (pin (num 2) (name Pin_2) (type passive))
        (pin (num 3) (name Pin_3) (type passive))))
    (libpart (lib Connector_Generic) (part Conn_01x04)
      (description "Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)")
      (docs ~)
      (footprints
        (fp Connector*:*_1x??_*))
      (fields
        (field (name Reference) J)
        (field (name Value) Conn_01x04))
      (pins
        (pin (num 1) (name Pin_1) (type passive))
        (pin (num 2) (name Pin_2) (type passive))
        (pin (num 3) (name Pin_3) (type passive))
        (pin (num 4) (name Pin_4) (type passive))))
    (libpart (lib Device) (part C)
      (description "Unpolarized capacitor")
      (docs ~)
      (footprints
        (fp C_*))
      (fields
        (field (name Reference) C)
        (field (name Value) C))
      (pins
        (pin (num 1) (name ~) (type passive))
        (pin (num 2) (name ~) (type passive))))
    (libpart (lib Device) (part Crystal_GND24_Small)
      (description "Four pin crystal, GND on pins 2 and 4, small symbol")
      (docs ~)
      (footprints
        (fp Crystal*))
      (fields
        (field (name Reference) Y)
        (field (name Value) Crystal_GND24_Small))
      (pins
        (pin (num 1) (name 1) (type passive))
        (pin (num 2) (name 2) (type passive))
        (pin (num 3) (name 3) (type passive))
        (pin (num 4) (name 4) (type passive))))
    (libpart (lib Device) (part D_Schottky)
      (description "Schottky diode")
      (docs ~)
      (footprints
        (fp TO-???*)
        (fp *_Diode_*)
        (fp *SingleDiode*)
        (fp D_*))
      (fields
        (field (name Reference) D)
        (field (name Value) D_Schottky))
      (pins
        (pin (num 1) (name K) (type passive))
        (pin (num 2) (name A) (type passive))))
    (libpart (lib Device) (part Ferrite_Bead)
      (description "Ferrite bead")
      (docs ~)
      (footprints
        (fp Inductor_*)
        (fp L_*)
        (fp *Ferrite*))
      (fields
        (field (name Reference) FB)
        (field (name Value) Ferrite_Bead))
      (pins
        (pin (num 1) (name ~) (type passive))
        (pin (num 2) (name ~) (type passive))))
    (libpart (lib Device) (part L)
      (description Inductor)
      (docs ~)
      (footprints
        (fp Choke_*)
        (fp *Coil*)
        (fp Inductor_*)
        (fp L_*))
      (fields
        (field (name Reference) L)
        (field (name Value) L))
      (pins
        (pin (num 1) (name 1) (type passive))
        (pin (num 2) (name 2) (type passive))))
    (libpart (lib Device) (part Q_NPN_BEC)
      (description "NPN transistor, base/emitter/collector")
      (docs ~)
      (fields
        (field (name Reference) Q)
        (field (name Value) Q_NPN_BEC))
      (pins
        (pin (num 1) (name B) (type input))
        (pin (num 2) (name E) (type passive))
        (pin (num 3) (name C) (type passive))))
    (libpart (lib Device) (part R)
      (description Resistor)
      (docs ~)
      (footprints
        (fp R_*))
      (fields
        (field (name Reference) R)
        (field (name Value) R))
      (pins
        (pin (num 1) (name ~) (type passive))
        (pin (num 2) (name ~) (type passive))))
    (libpart (lib MCU_ST_STM32F1) (part STM32F103C8Tx)
      (aliases
        (alias STM32F103CBTx))
      (description "ARM Cortex-M3 MCU, 64KB flash, 20KB RAM, 72MHz, 2-3.6V, 37 GPIO, LQFP-48")
      (docs http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00161566.pdf)
      (footprints
        (fp LQFP*7x7mm*P0.5mm*))
      (fields
        (field (name Reference) U)
        (field (name Value) STM32F103C8Tx)
        (field (name Footprint) Package_QFP:LQFP-48_7x7mm_P0.5mm))
      (pins
        (pin (num 1) (name VBAT) (type power_in))
        (pin (num 2) (name PC13) (type BiDi))
        (pin (num 3) (name PC14) (type BiDi))
        (pin (num 4) (name PC15) (type BiDi))
        (pin (num 5) (name PD0) (type input))
        (pin (num 6) (name PD1) (type input))
        (pin (num 7) (name NRST) (type input))
        (pin (num 8) (name VSSA) (type power_in))
        (pin (num 9) (name VDDA) (type power_in))
        (pin (num 10) (name PA0) (type BiDi))
        (pin (num 11) (name PA1) (type BiDi))
        (pin (num 12) (name PA2) (type BiDi))
        (pin (num 13) (name PA3) (type BiDi))
        (pin (num 14) (name PA4) (type BiDi))
        (pin (num 15) (name PA5) (type BiDi))
        (pin (num 16) (name PA6) (type BiDi))
        (pin (num 17) (name PA7) (type BiDi))
        (pin (num 18) (name PB0) (type BiDi))
        (pin (num 19) (name PB1) (type BiDi))
        (pin (num 20) (name PB2) (type BiDi))
        (pin (num 21) (name PB10) (type BiDi))
        (pin (num 22) (name PB11) (type BiDi))
        (pin (num 23) (name VSS) (type power_in))
        (pin (num 24) (name VDD) (type power_in))
        (pin (num 25) (name PB12) (type BiDi))
        (pin (num 26) (name PB13) (type BiDi))
        (pin (num 27) (name PB14) (type BiDi))
        (pin (num 28) (name PB15) (type BiDi))
        (pin (num 29) (name PA8) (type BiDi))
        (pin (num 30) (name PA9) (type BiDi))
        (pin (num 31) (name PA10) (type BiDi))
        (pin (num 32) (name PA11) (type BiDi))
        (pin (num 33) (name PA12) (type BiDi))
        (pin (num 34) (name PA13) (type BiDi))
        (pin (num 35) (name VSS) (type power_in))
        (pin (num 36) (name VDD) (type power_in))
        (pin (num 37) (name PA14) (type BiDi))
        (pin (num 38) (name PA15) (type BiDi))
        (pin (num 39) (name PB3) (type BiDi))
        (pin (num 40) (name PB4) (type BiDi))
        (pin (num 41) (name PB5) (type BiDi))
        (pin (num 42) (name PB6) (type BiDi))
        (pin (num 43) (name PB7) (type BiDi))
        (pin (num 44) (name BOOT0) (type input))
        (pin (num 45) (name PB8) (type BiDi))
        (pin (num 46) (name PB9) (type BiDi))
        (pin (num 47) (name VSS) (type power_in))
        (pin (num 48) (name VDD) (type power_in))))
    (libpart (lib Regulator_Linear) (part LM1117-1.8)
      (aliases
        (alias LM1117-2.5)
        (alias LM1117-3.3)
        (alias LM1117-5.0)
        (alias TLV1117-15)
        (alias TLV1117-18)
        (alias TLV1117-25)
        (alias TLV1117-33)
        (alias TLV1117-50))
      (description "800mA Low-Dropout Linear Regulator, 1.8V fixed output, TO-220/TO-252/TO-263/SOT-223")
      (docs http://www.ti.com/lit/ds/symlink/lm1117.pdf)
      (footprints
        (fp SOT?223*)
        (fp TO?263*)
        (fp TO?252*)
        (fp TO?220*))
      (fields
        (field (name Reference) U)
        (field (name Value) LM1117-1.8))
      (pins
        (pin (num 1) (name GND) (type power_in))
        (pin (num 2) (name VO) (type power_out))
        (pin (num 3) (name VI) (type power_in))))
    (libpart (lib Switch) (part SW_Push)
      (description "Push button switch, generic, two pins")
      (fields
        (field (name Reference) SW)
        (field (name Value) SW_Push))
      (pins
        (pin (num 1) (name 1) (type passive))
        (pin (num 2) (name 2) (type passive))))
    (libpart (lib extras) (part MT3540)
      (footprints
        (fp SOT-23-5))
      (fields
        (field (name Reference) U)
        (field (name Value) MT3540))
      (pins
        (pin (num 1) (name SW) (type power_out))
        (pin (num 2) (name GND) (type power_in))
        (pin (num 3) (name FB) (type input))
        (pin (num 4) (name EN) (type input))
        (pin (num 5) (name VIN) (type power_in))))
    (libpart (lib extras) (part USBUF01W6)
      (footprints
        (fp SOT-23-6))
      (fields
        (field (name Reference) U)
        (field (name Value) USBUF01W6))
      (pins
        (pin (num 1) (name D1) (type BiDi))
        (pin (num 2) (name GND) (type power_in))
        (pin (num 3) (name D2) (type BiDi))
        (pin (num 4) (name D3) (type BiDi))
        (pin (num 5) (name 3.3v) (type input))
        (pin (num 6) (name D4) (type BiDi)))))
  (libraries
    (library (logical 74xx)
      (uri /usr/share/kicad/library/74xx.lib))
    (library (logical Connector)
      (uri /usr/share/kicad/library/Connector.lib))
    (library (logical Connector_Generic)
      (uri /usr/share/kicad/library/Connector_Generic.lib))
    (library (logical Device)
      (uri /usr/share/kicad/library/Device.lib))
    (library (logical MCU_ST_STM32F1)
      (uri /usr/share/kicad/library/MCU_ST_STM32F1.lib))
    (library (logical Regulator_Linear)
      (uri /usr/share/kicad/library/Regulator_Linear.lib))
    (library (logical Switch)
      (uri /usr/share/kicad/library/Switch.lib))
    (library (logical extras)
      (uri /home/dsilvers/dev-git/entropykey/hardware/prototype/extras.lib)))
  (nets
    (net (code 1) (name GND)
      (node (ref Q3) (pin 2))
      (node (ref R5) (pin 2))
      (node (ref U5) (pin 7))
      (node (ref C17) (pin 2))
      (node (ref C18) (pin 2))
      (node (ref R7) (pin 2))
      (node (ref C16) (pin 2))
      (node (ref C10) (pin 2))
      (node (ref C9) (pin 2))
      (node (ref C15) (pin 2))
      (node (ref C2) (pin 2))
      (node (ref FB2) (pin 2))
      (node (ref SW1) (pin 2))
      (node (ref U1) (pin 2))
      (node (ref C3) (pin 2))
      (node (ref U2) (pin 8))
      (node (ref U2) (pin 47))
      (node (ref U2) (pin 35))
      (node (ref U2) (pin 23))
      (node (ref Y1) (pin 2))
      (node (ref J4) (pin 4))
      (node (ref Y1) (pin 4))
      (node (ref C11) (pin 1))
      (node (ref C12) (pin 1))
      (node (ref R24) (pin 2))
      (node (ref C14) (pin 2))
      (node (ref C13) (pin 2))
      (node (ref U4) (pin 2))
      (node (ref C8) (pin 2))
      (node (ref C7) (pin 2))
      (node (ref C6) (pin 2))
      (node (ref C5) (pin 2))
      (node (ref C4) (pin 2))
      (node (ref C19) (pin 2))
      (node (ref R22) (pin 2))
      (node (ref J2) (pin 4))
      (node (ref C20) (pin 2))
      (node (ref Q4) (pin 2))
      (node (ref R20) (pin 2))
      (node (ref J3) (pin 3))
      (node (ref C1) (pin 2))
      (node (ref U3) (pin 1)))
    (net (code 2) (name "Net-(Q1-Pad3)")
      (node (ref Q1) (pin 3)))
    (net (code 3) (name /G0_BUF)
      (node (ref C21) (pin 1))
      (node (ref R12) (pin 2)))
    (net (code 4) (name HT)
      (node (ref D1) (pin 1))
      (node (ref C16) (pin 1))
      (node (ref C15) (pin 1))
      (node (ref R23) (pin 1))
      (node (ref R6) (pin 1))
      (node (ref R8) (pin 1))
      (node (ref R9) (pin 1)))
    (net (code 5) (name "Net-(Q2-Pad3)")
      (node (ref Q2) (pin 3)))
    (net (code 6) (name /G1_BB)
      (node (ref Q4) (pin 1))
      (node (ref Q2) (pin 1)))
    (net (code 7) (name /BOOT0)
      (node (ref U2) (pin 44))
      (node (ref R3) (pin 2)))
    (net (code 8) (name /HT_EN)
      (node (ref U2) (pin 18))
      (node (ref R4) (pin 2)))
    (net (code 9) (name /X_I)
      (node (ref U2) (pin 5))
      (node (ref Y1) (pin 1))
      (node (ref C11) (pin 2)))
    (net (code 10) (name /G0_BB)
      (node (ref Q3) (pin 1))
      (node (ref Q1) (pin 1)))
    (net (code 11) (name /AMP_VCC)
      (node (ref FB5) (pin 2))
      (node (ref C18) (pin 1))
      (node (ref U5) (pin 14))
      (node (ref C17) (pin 1)))
    (net (code 12) (name /G1_BUF)
      (node (ref R13) (pin 2))
      (node (ref C22) (pin 1)))
    (net (code 13) (name +3V3)
      (node (ref J3) (pin 1))
      (node (ref R19) (pin 1))
      (node (ref J2) (pin 3))
      (node (ref J4) (pin 3))
      (node (ref U2) (pin 9))
      (node (ref U2) (pin 48))
      (node (ref U2) (pin 1))
      (node (ref U2) (pin 24))
      (node (ref C8) (pin 1))
      (node (ref C7) (pin 1))
      (node (ref C6) (pin 1))
      (node (ref C5) (pin 1))
      (node (ref C4) (pin 1))
      (node (ref U3) (pin 2))
      (node (ref U2) (pin 36))
      (node (ref C9) (pin 1))
      (node (ref C10) (pin 1))
      (node (ref FB5) (pin 1)))
    (net (code 14) (name "Net-(U2-Pad22)")
      (node (ref U2) (pin 22)))
    (net (code 15) (name "Net-(U2-Pad3)")
      (node (ref U2) (pin 3)))
    (net (code 16) (name "Net-(U2-Pad4)")
      (node (ref U2) (pin 4)))
    (net (code 17) (name "Net-(U2-Pad19)")
      (node (ref U2) (pin 19)))
    (net (code 18) (name "Net-(U2-Pad20)")
      (node (ref U2) (pin 20)))
    (net (code 19) (name "Net-(U2-Pad39)")
      (node (ref U2) (pin 39)))
    (net (code 20) (name "Net-(U2-Pad40)")
      (node (ref U2) (pin 40)))
    (net (code 21) (name "Net-(U2-Pad41)")
      (node (ref U2) (pin 41)))
    (net (code 22) (name "Net-(U2-Pad42)")
      (node (ref U2) (pin 42)))
    (net (code 23) (name "Net-(U2-Pad43)")
      (node (ref U2) (pin 43)))
    (net (code 24) (name "Net-(U2-Pad45)")
      (node (ref U2) (pin 45)))
    (net (code 25) (name "Net-(U2-Pad46)")
      (node (ref U2) (pin 46)))
    (net (code 26) (name "Net-(U2-Pad21)")
      (node (ref U2) (pin 21)))
    (net (code 27) (name "Net-(U2-Pad2)")
      (node (ref U2) (pin 2)))
    (net (code 28) (name "Net-(U2-Pad25)")
      (node (ref U2) (pin 25)))
    (net (code 29) (name "Net-(U2-Pad27)")
      (node (ref U2) (pin 27)))
    (net (code 30) (name "Net-(U2-Pad38)")
      (node (ref U2) (pin 38)))
    (net (code 31) (name /HT_MID)
      (node (ref U2) (pin 12))
      (node (ref R23) (pin 2))
      (node (ref R24) (pin 1)))
    (net (code 32) (name /3.3V_MID)
      (node (ref U2) (pin 10))
      (node (ref R20) (pin 1))
      (node (ref R19) (pin 2)))
    (net (code 33) (name /5V_MID)
      (node (ref R22) (pin 1))
      (node (ref R21) (pin 2))
      (node (ref U2) (pin 11)))
    (net (code 34) (name "Net-(U2-Pad13)")
      (node (ref U2) (pin 13)))
    (net (code 35) (name "Net-(U2-Pad14)")
      (node (ref U2) (pin 14)))
    (net (code 36) (name /GEN_CLK)
      (node (ref R18) (pin 1))
      (node (ref U2) (pin 15))
      (node (ref U2) (pin 26))
      (node (ref TP2) (pin 1)))
    (net (code 37) (name /5V_f)
      (node (ref C1) (pin 1))
      (node (ref FB1) (pin 2))
      (node (ref U3) (pin 3)))
    (net (code 39) (name /G0_IN)
      (node (ref Q1) (pin 2))
      (node (ref R10) (pin 2))
      (node (ref C19) (pin 1))
      (node (ref R8) (pin 2)))
    (net (code 40) (name /G1_IN)
      (node (ref R11) (pin 2))
      (node (ref C20) (pin 1))
      (node (ref R9) (pin 2))
      (node (ref Q2) (pin 2)))
    (net (code 41) (name /G0_RAW)
      (node (ref C21) (pin 2))
      (node (ref R10) (pin 1))
      (node (ref Q3) (pin 3)))
    (net (code 42) (name /G1_RAW)
      (node (ref Q4) (pin 3))
      (node (ref C22) (pin 2))
      (node (ref R11) (pin 1)))
    (net (code 43) (name /G0_0)
      (node (ref R12) (pin 1))
      (node (ref R14) (pin 2))
      (node (ref U5) (pin 1)))
    (net (code 44) (name /G0_1)
      (node (ref C23) (pin 2))
      (node (ref R14) (pin 1))
      (node (ref U5) (pin 2)))
    (net (code 45) (name /G0_2)
      (node (ref U5) (pin 3))
      (node (ref C23) (pin 1))
      (node (ref R16) (pin 2)))
    (net (code 46) (name /G0_3)
      (node (ref U5) (pin 4))
      (node (ref R16) (pin 1))
      (node (ref C25) (pin 2)))
    (net (code 47) (name /G0_4)
      (node (ref U5) (pin 5))
      (node (ref C25) (pin 1)))
    (net (code 48) (name /G1_4)
      (node (ref U5) (pin 13))
      (node (ref C26) (pin 1)))
    (net (code 49) (name /G0_OUT)
      (node (ref U2) (pin 17))
      (node (ref U5) (pin 6))
      (node (ref TP3) (pin 1)))
    (net (code 50) (name /G1_0)
      (node (ref R15) (pin 2))
      (node (ref U5) (pin 9))
      (node (ref R13) (pin 1)))
    (net (code 51) (name /G1_2)
      (node (ref U5) (pin 11))
      (node (ref C24) (pin 1))
      (node (ref R17) (pin 2)))
    (net (code 52) (name /G1_1)
      (node (ref U5) (pin 8))
      (node (ref C24) (pin 2))
      (node (ref R15) (pin 1)))
    (net (code 53) (name /G1_OUT)
      (node (ref TP4) (pin 1))
      (node (ref U5) (pin 12))
      (node (ref U2) (pin 28)))
    (net (code 54) (name /G1_3)
      (node (ref C26) (pin 2))
      (node (ref R17) (pin 1))
      (node (ref U5) (pin 10)))
    (net (code 55) (name +5V)
      (node (ref FB4) (pin 1))
      (node (ref FB1) (pin 1))
      (node (ref FB3) (pin 1))
      (node (ref R21) (pin 1)))
    (net (code 56) (name /GEN_CLK_O)
      (node (ref U2) (pin 16))
      (node (ref R18) (pin 2)))
    (net (code 57) (name /USB_D+)
      (node (ref J1) (pin 3))
      (node (ref U1) (pin 6)))
    (net (code 58) (name /SWDIO)
      (node (ref U2) (pin 34))
      (node (ref J2) (pin 1)))
    (net (code 59) (name /SWCLK)
      (node (ref J2) (pin 2))
      (node (ref U2) (pin 37)))
    (net (code 60) (name /PRES)
      (node (ref TP1) (pin 1))
      (node (ref R1) (pin 1))
      (node (ref U2) (pin 29)))
    (net (code 61) (name /CGND)
      (node (ref J1) (pin 5))
      (node (ref C2) (pin 1)))
    (net (code 62) (name /BOOT0_b)
      (node (ref J3) (pin 2))
      (node (ref R3) (pin 1)))
    (net (code 63) (name /X_O)
      (node (ref R2) (pin 1))
      (node (ref U2) (pin 6)))
    (net (code 64) (name /X_O_b)
      (node (ref Y1) (pin 3))
      (node (ref R2) (pin 2))
      (node (ref C12) (pin 2)))
    (net (code 65) (name /NRST)
      (node (ref SW1) (pin 1))
      (node (ref U2) (pin 7)))
    (net (code 66) (name /D-)
      (node (ref U1) (pin 3))
      (node (ref U2) (pin 32)))
    (net (code 67) (name /USB_PRES)
      (node (ref R1) (pin 2))
      (node (ref U1) (pin 5)))
    (net (code 68) (name /USB_V+)
      (node (ref J1) (pin 1))
      (node (ref C3) (pin 1))
      (node (ref FB3) (pin 2)))
    (net (code 69) (name /USB_D-)
      (node (ref U1) (pin 4))
      (node (ref J1) (pin 2)))
    (net (code 70) (name /D+)
      (node (ref U1) (pin 1))
      (node (ref U2) (pin 33)))
    (net (code 71) (name /USB_GND)
      (node (ref FB2) (pin 1))
      (node (ref J1) (pin 4)))
    (net (code 72) (name /HT_EN_f)
      (node (ref R4) (pin 1))
      (node (ref U4) (pin 4))
      (node (ref R5) (pin 1)))
    (net (code 73) (name /USART1_TX)
      (node (ref J4) (pin 1))
      (node (ref U2) (pin 30)))
    (net (code 74) (name /HT_VIN)
      (node (ref FB4) (pin 2))
      (node (ref L1) (pin 1))
      (node (ref C13) (pin 1))
      (node (ref C14) (pin 1))
      (node (ref U4) (pin 5)))
    (net (code 75) (name /HT_SW)
      (node (ref U4) (pin 1))
      (node (ref D1) (pin 2))
      (node (ref L1) (pin 2)))
    (net (code 76) (name /USART1_RX)
      (node (ref U2) (pin 31))
      (node (ref J4) (pin 2)))
    (net (code 77) (name /HT_FB)
      (node (ref U4) (pin 3))
      (node (ref R7) (pin 1))
      (node (ref R6) (pin 2)))))