decoder.net
(export (version D)
  (design
    (source "C:\\Users\\Federico Roncaglia\\Documents\\DCC\\decoder\\decoder_v4\\decoder.sch")
    (date "08/05/2020 12:26:51")
    (tool "Eeschema (5.0.2)-1")
    (sheet (number 1) (name /) (tstamps /)
      (title_block
        (title "DCC Decoder")
        (company "Federico Roncaglia")
        (rev 3)
        (date 2020-05-06)
        (source decoder.sch)
        (comment (number 1) (value "Locomotive miniature decoder"))
        (comment (number 2) (value ""))
        (comment (number 3) (value ""))
        (comment (number 4) (value ""))))
    (sheet (number 2) (name "/Power Supply and DCC interface/") (tstamps /5E8FC1B7/)
      (title_block
        (title "Power Supply and DCC Interface")
        (company "Federico Roncaglia")
        (rev 3)
        (date 2020-05-06)
        (source psdcc.sch)
        (comment (number 1) (value "Locomotive miniature decoder"))
        (comment (number 2) (value ""))
        (comment (number 3) (value ""))
        (comment (number 4) (value ""))))
    (sheet (number 3) (name /Microcontroller/) (tstamps /5E8FB8FF/)
      (title_block
        (title Microcontroller)
        (company "Federico Roncaglia")
        (rev 3)
        (date 2020-05-06)
        (source uC.sch)
        (comment (number 1) (value "Locomotive miniature decoder"))
        (comment (number 2) (value ""))
        (comment (number 3) (value ""))
        (comment (number 4) (value ""))))
    (sheet (number 4) (name /Outputs/) (tstamps /5E8FBB0F/)
      (title_block
        (title Outputs)
        (company "Federico Roncaglia")
        (rev 3)
        (date 2020-05-06)
        (source outputs.sch)
        (comment (number 1) (value "Locomotive miniature decoder"))
        (comment (number 2) (value ""))
        (comment (number 3) (value ""))
        (comment (number 4) (value "")))))
  (components
    (comp (ref J1)
      (value Conn_PluX16)
      (footprint Connector_PluX:PinHeader_2x08_P1.27mm_Vertical_SMD)
      (libsource (lib Connectors_DCC) (part Conn_PluX16) (description ""))
      (sheetpath (names /) (tstamps /))
      (tstamp 5E91F147))
    (comp (ref C1)
      (value 330n)
      (footprint Capacitor_SMD:C_1206_3216Metric)
      (datasheet 35V)
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names "/Power Supply and DCC interface/") (tstamps /5E8FC1B7/))
      (tstamp 5E91B106))
    (comp (ref C2)
      (value 100n)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names "/Power Supply and DCC interface/") (tstamps /5E8FC1B7/))
      (tstamp 5E91B10D))
    (comp (ref D1)
      (value SS34)
      (footprint Diode_SMD:D_SMA)
      (datasheet ~)
      (libsource (lib Device) (part D_Schottky) (description "Schottky diode"))
      (sheetpath (names "/Power Supply and DCC interface/") (tstamps /5E8FC1B7/))
      (tstamp 5E9B5946))
    (comp (ref D3)
      (value SS34)
      (footprint Diode_SMD:D_SMA)
      (datasheet ~)
      (libsource (lib Device) (part D_Schottky) (description "Schottky diode"))
      (sheetpath (names "/Power Supply and DCC interface/") (tstamps /5E8FC1B7/))
      (tstamp 5EAB141E))
    (comp (ref D2)
      (value SS34)
      (footprint Diode_SMD:D_SMA)
      (datasheet ~)
      (libsource (lib Device) (part D_Schottky) (description "Schottky diode"))
      (sheetpath (names "/Power Supply and DCC interface/") (tstamps /5E8FC1B7/))
      (tstamp 5EAB1489))
    (comp (ref D4)
      (value SS34)
      (footprint Diode_SMD:D_SMA)
      (datasheet ~)
      (libsource (lib Device) (part D_Schottky) (description "Schottky diode"))
      (sheetpath (names "/Power Supply and DCC interface/") (tstamps /5E8FC1B7/))
      (tstamp 5EAB1490))
    (comp (ref Q1)
      (value DTC144EETL)
      (footprint Package_TO_SOT_SMD:SOT-416)
      (libsource (lib Transistor_BJT) (part DTC144E) (description "Digital NPN Transistor, 47k/47k, SOT-23"))
      (sheetpath (names "/Power Supply and DCC interface/") (tstamps /5E8FC1B7/))
      (tstamp 5EB1F22E))
    (comp (ref U1)
      (value XC6206P332MR)
      (footprint Package_TO_SOT_SMD:SOT-23)
      (libsource (lib LDO) (part XC6206P332MR) (description ""))
      (sheetpath (names "/Power Supply and DCC interface/") (tstamps /5E8FC1B7/))
      (tstamp 5EB39A3F))
    (comp (ref C3)
      (value 100n)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /Microcontroller/) (tstamps /5E8FB8FF/))
      (tstamp 5E90056D))
    (comp (ref C4)
      (value 100n)
      (footprint Capacitor_SMD:C_0603_1608Metric)
      (datasheet ~)
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /Microcontroller/) (tstamps /5E8FB8FF/))
      (tstamp 5E90057F))
    (comp (ref J2)
      (value Conn_01x05)
      (footprint Connector_Pitch:Pitch_1x05_P1.27mm)
      (datasheet ~)
      (libsource (lib Connector_Generic) (part Conn_01x05) (description "Generic connector, single row, 01x05, script generated (kicad-library-utils/schlib/autogen/connector/)"))
      (sheetpath (names /Microcontroller/) (tstamps /5E8FB8FF/))
      (tstamp 5E91431C))
    (comp (ref U2)
      (value STM32L031G6Ux)
      (footprint Package_DFN_QFN:QFN-28_4x4mm_P0.5mm)
      (datasheet http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00140359.pdf)
      (libsource (lib MCU_ST_STM32L0) (part STM32L031G6Ux) (description "ARM Cortex-M0+ MCU, 32KB flash, 8KB RAM, 32MHz, 1.65-3.6V, 21 GPIO, UFQFPN-28"))
      (sheetpath (names /Microcontroller/) (tstamps /5E8FB8FF/))
      (tstamp 5E977138))
    (comp (ref C6)
      (value 10u)
      (footprint Capacitor_SMD:C_1206_3216Metric)
      (datasheet 35V)
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /Outputs/) (tstamps /5E8FBB0F/))
      (tstamp 5E91C0F3))
    (comp (ref C5)
      (value 10u)
      (footprint Capacitor_SMD:C_1206_3216Metric)
      (datasheet 35V)
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /Outputs/) (tstamps /5E8FBB0F/))
      (tstamp 5E91C0FA))
    (comp (ref C9)
      (value 100n)
      (footprint Capacitor_SMD:C_0805_2012Metric)
      (datasheet 35V)
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /Outputs/) (tstamps /5E8FBB0F/))
      (tstamp 5E91C101))
    (comp (ref C7)
      (value 10u)
      (footprint Capacitor_SMD:C_1206_3216Metric)
      (datasheet 35V)
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /Outputs/) (tstamps /5E8FBB0F/))
      (tstamp 5E91C108))
    (comp (ref C8)
      (value 10u)
      (footprint Capacitor_SMD:C_1206_3216Metric)
      (datasheet 35V)
      (libsource (lib Device) (part C) (description "Unpolarized capacitor"))
      (sheetpath (names /Outputs/) (tstamps /5E8FBB0F/))
      (tstamp 5E91C10F))
    (comp (ref Q3)
      (value PUMH10)
      (footprint Package_TO_SOT_SMD:SOT-363_SC-70-6)
      (libsource (lib PxMH10) (part PUMH10) (description ""))
      (sheetpath (names /Outputs/) (tstamps /5E8FBB0F/))
      (tstamp 5E91C124))
    (comp (ref Q2)
      (value PUMH10)
      (footprint Package_TO_SOT_SMD:SOT-363_SC-70-6)
      (libsource (lib PxMH10) (part PUMH10) (description ""))
      (sheetpath (names /Outputs/) (tstamps /5E8FBB0F/))
      (tstamp 5E91C137))
    (comp (ref Q4)
      (value PUMH10)
      (footprint Package_TO_SOT_SMD:SOT-363_SC-70-6)
      (libsource (lib PxMH10) (part PUMH10) (description ""))
      (sheetpath (names /Outputs/) (tstamps /5E8FBB0F/))
      (tstamp 5E91C14A))
    (comp (ref U3)
      (value DRV8872)
      (footprint Package_SO:Texas_HTSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.95x4.9mm_Mask2.4x3.1mm_ThermalVias)
      (datasheet http://www.ti.com/lit/ds/symlink/drv8872.pdf)
      (libsource (lib Driver_Motor) (part DRV8872DDA) (description "Brushed DC Motor Driver, PWM Control, 45V, 3.6A, Current limiting, Fault Reporting, HTSOP-8"))
      (sheetpath (names /Outputs/) (tstamps /5E8FBB0F/))
      (tstamp 5EAE055A))
    (comp (ref R1)
      (value "MRF6432(2512)LR150FTS")
      (footprint Resistor_SMD:R_2512_6332Metric)
      (datasheet "0R15 2W")
      (libsource (lib Device) (part R_US) (description "Resistor, US symbol"))
      (sheetpath (names /Outputs/) (tstamps /5E8FBB0F/))
      (tstamp 5EAF41BF)))
  (libparts
    (libpart (lib Connector_Generic) (part Conn_01x05)
      (description "Generic connector, single row, 01x05, script generated (kicad-library-utils/schlib/autogen/connector/)")
      (docs ~)
      (footprints
        (fp Connector*:*_1x??_*))
      (fields
        (field (name Reference) J)
        (field (name Value) Conn_01x05))
      (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))
        (pin (num 5) (name Pin_5) (type passive))))
    (libpart (lib Connectors_DCC) (part Conn_PluX16)
      (fields
        (field (name Reference) J)
        (field (name Value) Conn_PluX16))
      (pins
        (pin (num 3) (name GPIOB) (type passive))
        (pin (num 4) (name GPIOA) (type passive))
        (pin (num 5) (name GND) (type passive))
        (pin (num 6) (name V+) (type passive))
        (pin (num 7) (name F0F) (type passive))
        (pin (num 8) (name M1) (type passive))
        (pin (num 9) (name V+) (type passive))
        (pin (num 10) (name M2) (type passive))
        (pin (num 12) (name TR) (type passive))
        (pin (num 13) (name F0R) (type passive))
        (pin (num 14) (name TL) (type passive))
        (pin (num 15) (name LSA) (type passive))
        (pin (num 16) (name AUX1) (type passive))
        (pin (num 17) (name LSB) (type passive))
        (pin (num 18) (name AUX2) (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 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 R_US)
      (description "Resistor, US symbol")
      (docs ~)
      (footprints
        (fp R_*))
      (fields
        (field (name Reference) R)
        (field (name Value) R_US))
      (pins
        (pin (num 1) (name ~) (type passive))
        (pin (num 2) (name ~) (type passive))))
    (libpart (lib Driver_Motor) (part DRV8872DDA)
      (description "Brushed DC Motor Driver, PWM Control, 45V, 3.6A, Current limiting, Fault Reporting, HTSOP-8")
      (docs http://www.ti.com/lit/ds/symlink/drv8872.pdf)
      (footprints
        (fp Texas*HTSOP*1EP*3.9x4.9mm*P1.27mm*EP2.95x4.9mm*Mask2.4x3.1mm*))
      (fields
        (field (name Reference) U)
        (field (name Value) DRV8872DDA)
        (field (name Footprint) Package_SO:Texas_HTSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.95x4.9mm_Mask2.4x3.1mm_ThermalVias))
      (pins
        (pin (num 1) (name GND) (type power_in))
        (pin (num 2) (name IN2) (type input))
        (pin (num 3) (name IN1) (type input))
        (pin (num 4) (name nFAULT) (type openCol))
        (pin (num 5) (name VM) (type power_in))
        (pin (num 6) (name OUT1) (type output))
        (pin (num 7) (name ISEN) (type passive))
        (pin (num 8) (name OUT2) (type output))
        (pin (num 9) (name GND) (type passive))))
    (libpart (lib LDO) (part XC6206P332MR)
      (footprints
        (fp SOT-23))
      (fields
        (field (name Reference) U)
        (field (name Value) XC6206P332MR))
      (pins
        (pin (num 1) (name GND) (type power_in))
        (pin (num 2) (name OUT) (type power_out))
        (pin (num 3) (name IN) (type power_in))))
    (libpart (lib MCU_ST_STM32L0) (part STM32L031G4Ux)
      (aliases
        (alias STM32L031G6Ux))
      (description "ARM Cortex-M0+ MCU, 16KB flash, 8KB RAM, 32MHz, 1.65-3.6V, 21 GPIO, UFQFPN-28")
      (docs http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00140359.pdf)
      (footprints
        (fp QFN*4x4mm*P0.5mm*))
      (fields
        (field (name Reference) U)
        (field (name Value) STM32L031G4Ux)
        (field (name Footprint) Package_DFN_QFN:QFN-28_4x4mm_P0.5mm))
      (pins
        (pin (num 1) (name VDD) (type power_in))
        (pin (num 2) (name PC14) (type BiDi))
        (pin (num 3) (name PC15) (type BiDi))
        (pin (num 4) (name NRST) (type input))
        (pin (num 5) (name VDDA) (type power_in))
        (pin (num 6) (name PA0) (type BiDi))
        (pin (num 7) (name PA1) (type BiDi))
        (pin (num 8) (name PA2) (type BiDi))
        (pin (num 9) (name PA3) (type BiDi))
        (pin (num 10) (name PA4) (type BiDi))
        (pin (num 11) (name PA5) (type BiDi))
        (pin (num 12) (name PA6) (type BiDi))
        (pin (num 13) (name PA7) (type BiDi))
        (pin (num 14) (name PB0) (type BiDi))
        (pin (num 15) (name PB1) (type BiDi))
        (pin (num 16) (name VSS) (type power_in))
        (pin (num 17) (name VDD) (type power_in))
        (pin (num 18) (name PA8) (type BiDi))
        (pin (num 19) (name PA9) (type BiDi))
        (pin (num 20) (name PA10) (type BiDi))
        (pin (num 21) (name PA13) (type BiDi))
        (pin (num 22) (name PA14) (type BiDi))
        (pin (num 23) (name PA15) (type BiDi))
        (pin (num 24) (name PB3) (type BiDi))
        (pin (num 25) (name PB6) (type BiDi))
        (pin (num 26) (name PB7) (type BiDi))
        (pin (num 27) (name BOOT0) (type input))
        (pin (num 28) (name VSS) (type power_in))))
    (libpart (lib PxMH10) (part PUMH10)
      (fields
        (field (name Reference) Q)
        (field (name Value) PUMH10))
      (pins
        (pin (num 1) (name E1) (type passive))
        (pin (num 2) (name B1) (type input))
        (pin (num 3) (name C2) (type passive))
        (pin (num 4) (name E2) (type passive))
        (pin (num 5) (name B2) (type input))
        (pin (num 6) (name C1) (type passive))))
    (libpart (lib Transistor_BJT) (part DTC144E)
      (description "Digital NPN Transistor, 47k/47k, SOT-23")
      (footprints
        (fp SOT?23*)
        (fp SC?59*))
      (fields
        (field (name Reference) Q)
        (field (name Value) DTC144E))
      (pins
        (pin (num 1) (name B) (type input))
        (pin (num 2) (name E) (type passive))
        (pin (num 3) (name C) (type passive)))))
  (libraries
    (library (logical Connector_Generic)
      (uri "C:\\Program Files\\KiCad\\share\\kicad\\library/Connector_Generic.lib"))
    (library (logical Connectors_DCC)
      (uri "C:/Users/Federico Roncaglia/Documents/0_Cose utili/lib/Connectors_DCC.lib"))
    (library (logical Device)
      (uri "C:\\Program Files\\KiCad\\share\\kicad\\library/Device.lib"))
    (library (logical Driver_Motor)
      (uri "C:\\Program Files\\KiCad\\share\\kicad\\library/Driver_Motor.lib"))
    (library (logical LDO)
      (uri "C:/Users/Federico Roncaglia/Documents/0_Cose utili/lib/LDO.lib"))
    (library (logical MCU_ST_STM32L0)
      (uri "C:\\Program Files\\KiCad\\share\\kicad\\library/MCU_ST_STM32L0.lib"))
    (library (logical PxMH10)
      (uri "C:/Users/Federico Roncaglia/Documents/0_Cose utili/lib/PxMH10.lib"))
    (library (logical Transistor_BJT)
      (uri "C:\\Program Files\\KiCad\\share\\kicad\\library/Transistor_BJT.lib")))
  (nets
    (net (code 1) (name AUX2)
      (node (ref Q2) (pin 3))
      (node (ref J1) (pin 18)))
    (net (code 2) (name +15V)
      (node (ref U3) (pin 5))
      (node (ref C8) (pin 1))
      (node (ref C7) (pin 1))
      (node (ref C9) (pin 1))
      (node (ref C6) (pin 1))
      (node (ref C5) (pin 1))
      (node (ref D1) (pin 1))
      (node (ref D2) (pin 1))
      (node (ref C1) (pin 1))
      (node (ref U1) (pin 3))
      (node (ref J1) (pin 9))
      (node (ref J1) (pin 6)))
    (net (code 3) (name GND)
      (node (ref C4) (pin 2))
      (node (ref Q4) (pin 4))
      (node (ref Q4) (pin 1))
      (node (ref Q3) (pin 4))
      (node (ref Q3) (pin 1))
      (node (ref C3) (pin 2))
      (node (ref C7) (pin 2))
      (node (ref R1) (pin 2))
      (node (ref U3) (pin 9))
      (node (ref C6) (pin 2))
      (node (ref C5) (pin 2))
      (node (ref C9) (pin 2))
      (node (ref U3) (pin 1))
      (node (ref C8) (pin 2))
      (node (ref J1) (pin 5))
      (node (ref Q2) (pin 1))
      (node (ref Q2) (pin 4))
      (node (ref Q1) (pin 2))
      (node (ref U2) (pin 28))
      (node (ref U2) (pin 16))
      (node (ref U1) (pin 1))
      (node (ref C1) (pin 2))
      (node (ref C2) (pin 2))
      (node (ref D3) (pin 2))
      (node (ref U2) (pin 27))
      (node (ref J2) (pin 5))
      (node (ref D4) (pin 2)))
    (net (code 4) (name "Net-(J1-Pad15)")
      (node (ref J1) (pin 15)))
    (net (code 5) (name "Net-(J1-Pad17)")
      (node (ref J1) (pin 17)))
    (net (code 6) (name F0F)
      (node (ref J1) (pin 7))
      (node (ref Q3) (pin 6)))
    (net (code 7) (name GPIOB)
      (node (ref Q4) (pin 3))
      (node (ref J1) (pin 3)))
    (net (code 8) (name F0R)
      (node (ref J1) (pin 13))
      (node (ref Q3) (pin 3)))
    (net (code 9) (name AUX1)
      (node (ref J1) (pin 16))
      (node (ref Q2) (pin 6)))
    (net (code 10) (name TRACK_L)
      (node (ref D1) (pin 2))
      (node (ref Q1) (pin 1))
      (node (ref J1) (pin 14))
      (node (ref D3) (pin 1)))
    (net (code 11) (name GPIOA)
      (node (ref J1) (pin 4))
      (node (ref Q4) (pin 6)))
    (net (code 12) (name MOT_1)
      (node (ref U3) (pin 6))
      (node (ref J1) (pin 8)))
    (net (code 13) (name TRACK_R)
      (node (ref D4) (pin 1))
      (node (ref D2) (pin 2))
      (node (ref J1) (pin 12)))
    (net (code 14) (name MOT_2)
      (node (ref J1) (pin 10))
      (node (ref U3) (pin 8)))
    (net (code 15) (name SWDIO)
      (node (ref U2) (pin 21))
      (node (ref J2) (pin 4)))
    (net (code 16) (name SWCLK)
      (node (ref J2) (pin 3))
      (node (ref U2) (pin 22)))
    (net (code 17) (name IN_2)
      (node (ref U2) (pin 13))
      (node (ref U3) (pin 2)))
    (net (code 18) (name IN_1)
      (node (ref U2) (pin 12))
      (node (ref U3) (pin 3)))
    (net (code 19) (name C_AUX2)
      (node (ref Q2) (pin 5))
      (node (ref U2) (pin 15)))
    (net (code 20) (name C_AUX1)
      (node (ref Q2) (pin 2))
      (node (ref U2) (pin 14)))
    (net (code 21) (name C_F0R)
      (node (ref Q3) (pin 5))
      (node (ref U2) (pin 7)))
    (net (code 22) (name +3V3)
      (node (ref U1) (pin 2))
      (node (ref U2) (pin 5))
      (node (ref U2) (pin 17))
      (node (ref U2) (pin 1))
      (node (ref C2) (pin 1))
      (node (ref J2) (pin 1))
      (node (ref C3) (pin 1)))
    (net (code 23) (name NRST)
      (node (ref U2) (pin 4))
      (node (ref C4) (pin 1))
      (node (ref J2) (pin 2)))
    (net (code 24) (name nFAULT)
      (node (ref U2) (pin 11))
      (node (ref U3) (pin 4)))
    (net (code 25) (name C_F0F)
      (node (ref Q3) (pin 2))
      (node (ref U2) (pin 6)))
    (net (code 26) (name DCC_DATA)
      (node (ref U2) (pin 19))
      (node (ref Q1) (pin 3)))
    (net (code 27) (name C_GPIOB)
      (node (ref U2) (pin 8))
      (node (ref Q4) (pin 5)))
    (net (code 28) (name C_GPIOA)
      (node (ref U2) (pin 9))
      (node (ref Q4) (pin 2)))
    (net (code 29) (name "Net-(U2-Pad2)")
      (node (ref U2) (pin 2)))
    (net (code 30) (name "Net-(U2-Pad3)")
      (node (ref U2) (pin 3)))
    (net (code 31) (name "Net-(U2-Pad26)")
      (node (ref U2) (pin 26)))
    (net (code 32) (name "Net-(U2-Pad10)")
      (node (ref U2) (pin 10)))
    (net (code 33) (name "Net-(U2-Pad18)")
      (node (ref U2) (pin 18)))
    (net (code 34) (name "Net-(U2-Pad20)")
      (node (ref U2) (pin 20)))
    (net (code 35) (name "Net-(U2-Pad23)")
      (node (ref U2) (pin 23)))
    (net (code 36) (name "Net-(U2-Pad25)")
      (node (ref U2) (pin 25)))
    (net (code 37) (name "Net-(U2-Pad24)")
      (node (ref U2) (pin 24)))
    (net (code 38) (name "Net-(R1-Pad1)")
      (node (ref R1) (pin 1))
      (node (ref U3) (pin 7)))))