| ## Based on https://github.com/Digilent/digilent-xdc/blob/master/Arty-S7-50-Rev-B-Master.xdc | 
 | ## Tested with a Rev B board (but the Rev E looks the same) | 
 | ## This file is a general .xdc for the Arty S7-50 Rev. B | 
 | ## To use it in a project: | 
 | ## - uncomment the lines corresponding to used pins | 
 | ## - rename the used ports (in each line, after get_ports) according to the top level signal names in the project | 
 |  | 
 | ## Clock signal | 
 | #set_property -dict { PACKAGE_PIN F14   IOSTANDARD LVCMOS33 } [get_ports { CLK12MHZ }]; #IO_L13P_T2_MRCC_15 Sch=uclk | 
 | #create_clock -add -name sys_clk_pin -period 83.333 -waveform {0 41.667} [get_ports { CLK12MHZ }]; | 
 | set_property -dict { PACKAGE_PIN R2    IOSTANDARD SSTL135 } [get_ports { IO_CLK }]; #IO_L12P_T1_MRCC_34 Sch=ddr3_clk[200] | 
 | create_clock -add -name sys_clk_pin -period 10.000 -waveform {0 5.000}  [get_ports { IO_CLK }]; | 
 |  | 
 | ## Clock Domain Crossings | 
 | create_generated_clock -name clk_50_unbuf -source [get_pin clkgen/pll/CLKIN1] [get_pin clkgen/pll/CLKOUT0] | 
 | create_generated_clock -name clk_48_unbuf -source [get_pin clkgen/pll/CLKIN1] [get_pin clkgen/pll/CLKOUT1] | 
 | set_clock_groups -group clk_50_unbuf -group clk_48_unbuf -asynchronous | 
 |  | 
 | ## Switches | 
 | set_property -dict { PACKAGE_PIN H14   IOSTANDARD LVCMOS33 } [get_ports { IO_GP4 }]; #IO_L20N_T3_A19_15 Sch=sw[0] | 
 | set_property -dict { PACKAGE_PIN H18   IOSTANDARD LVCMOS33 } [get_ports { IO_GP5 }]; #IO_L21P_T3_DQS_15 Sch=sw[1] | 
 | set_property -dict { PACKAGE_PIN G18   IOSTANDARD LVCMOS33 } [get_ports { IO_GP6 }]; #IO_L21N_T3_DQS_A18_15 Sch=sw[2] | 
 | set_property -dict { PACKAGE_PIN M5    IOSTANDARD SSTL135 } [get_ports { IO_GP7 }]; #IO_L6N_T0_VREF_34 Sch=sw[3] | 
 |  | 
 | ## RGB LEDs | 
 | set_property -dict { PACKAGE_PIN J15   IOSTANDARD LVCMOS33 } [get_ports { IO_GP12 }]; #IO_L23N_T3_FWE_B_15 Sch=led0_r | 
 | #set_property -dict { PACKAGE_PIN G17   IOSTANDARD LVCMOS33 } [get_ports { led0_g }]; #IO_L14N_T2_SRCC_15 Sch=led0_g | 
 | #set_property -dict { PACKAGE_PIN F15   IOSTANDARD LVCMOS33 } [get_ports { led0_b }]; #IO_L13N_T2_MRCC_15 Sch=led0_b | 
 | set_property -dict { PACKAGE_PIN E15   IOSTANDARD LVCMOS33 } [get_ports { IO_GP13 }]; #IO_L15N_T2_DQS_ADV_B_15 Sch=led1_r | 
 | set_property -dict { PACKAGE_PIN F18   IOSTANDARD LVCMOS33 } [get_ports { IO_GP14 }]; #IO_L16P_T2_A28_15 Sch=led1_g | 
 | set_property -dict { PACKAGE_PIN E14   IOSTANDARD LVCMOS33 } [get_ports { IO_GP15 }]; #IO_L15P_T2_DQS_15 Sch=led1_b | 
 |  | 
 | ## LEDs | 
 | set_property -dict { PACKAGE_PIN E18   IOSTANDARD LVCMOS33 } [get_ports { IO_GP8 }]; #IO_L16N_T2_A27_15 Sch=led[2] | 
 | set_property -dict { PACKAGE_PIN F13   IOSTANDARD LVCMOS33 } [get_ports { IO_GP9 }]; #IO_L17P_T2_A26_15 Sch=led[3] | 
 | set_property -dict { PACKAGE_PIN E13   IOSTANDARD LVCMOS33 } [get_ports { IO_GP10 }]; #IO_L17N_T2_A25_15 Sch=led[4] | 
 | set_property -dict { PACKAGE_PIN H15   IOSTANDARD LVCMOS33 } [get_ports { IO_GP11 }]; #IO_L18P_T2_A24_15 Sch=led[5] | 
 |  | 
 | ## Buttons | 
 | set_property -dict { PACKAGE_PIN G15   IOSTANDARD LVCMOS33 } [get_ports { IO_GP0 }]; #IO_L18N_T2_A23_15 Sch=btn[0] | 
 | set_property -dict { PACKAGE_PIN K16   IOSTANDARD LVCMOS33 } [get_ports { IO_GP1 }]; #IO_L19P_T3_A22_15 Sch=btn[1] | 
 | set_property -dict { PACKAGE_PIN J16   IOSTANDARD LVCMOS33 } [get_ports { IO_GP2 }]; #IO_L19N_T3_A21_VREF_15 Sch=btn[2] | 
 | set_property -dict { PACKAGE_PIN H13   IOSTANDARD LVCMOS33 } [get_ports { IO_GP3 }]; #IO_L20P_T3_A20_15 Sch=btn[3] | 
 |  | 
 | ## PMOD Header JA | 
 | #set_property -dict { PACKAGE_PIN L17   IOSTANDARD LVCMOS33 } [get_ports { ja[0] }]; #IO_L4P_T0_D04_14 Sch=ja_p[1] | 
 | #set_property -dict { PACKAGE_PIN L18   IOSTANDARD LVCMOS33 } [get_ports { ja[1] }]; #IO_L4N_T0_D05_14 Sch=ja_n[1] | 
 | #set_property -dict { PACKAGE_PIN M14   IOSTANDARD LVCMOS33 } [get_ports { ja[2] }]; #IO_L5P_T0_D06_14 Sch=ja_p[2] | 
 | #set_property -dict { PACKAGE_PIN N14   IOSTANDARD LVCMOS33 } [get_ports { ja[3] }]; #IO_L5N_T0_D07_14 Sch=ja_n[2] | 
 | #set_property -dict { PACKAGE_PIN M16   IOSTANDARD LVCMOS33 } [get_ports { ja[4] }]; #IO_L7P_T1_D09_14 Sch=ja_p[3] | 
 | #set_property -dict { PACKAGE_PIN M17   IOSTANDARD LVCMOS33 } [get_ports { ja[5] }]; #IO_L7N_T1_D10_14 Sch=ja_n[3] | 
 | #set_property -dict { PACKAGE_PIN M18   IOSTANDARD LVCMOS33 } [get_ports { ja[6] }]; #IO_L8P_T1_D11_14 Sch=ja_p[4] | 
 | #set_property -dict { PACKAGE_PIN N18   IOSTANDARD LVCMOS33 } [get_ports { ja[7] }]; #IO_L8N_T1_D12_14 Sch=ja_n[4] | 
 |  | 
 | ## PMOD Header JB | 
 | set_property -dict { PACKAGE_PIN P17   IOSTANDARD LVCMOS33 DRIVE 8 SLEW FAST } [get_ports { IO_USB_DP0 }]; #IO_L9P_T1_DQS_14 Sch=jb_p[1] | 
 | set_property -dict { PACKAGE_PIN P18   IOSTANDARD LVCMOS33 DRIVE 8 SLEW FAST } [get_ports { IO_USB_DN0 }]; #IO_L9N_T1_DQS_D13_14 Sch=jb_n[1] | 
 | set_property -dict { PACKAGE_PIN R18   IOSTANDARD LVCMOS33 } [get_ports { IO_USB_DPPULLUP0 }]; #IO_L10P_T1_D14_14 Sch=jb_p[2] | 
 | set_property -dict { PACKAGE_PIN T18   IOSTANDARD LVCMOS33 } [get_ports { IO_USB_SENSE0 }]; #IO_L10N_T1_D15_14 Sch=jb_n[2] | 
 | #set_property -dict { PACKAGE_PIN P14   IOSTANDARD LVCMOS33 } [get_ports { jb[4] }]; #IO_L11P_T1_SRCC_14 Sch=jb_p[3] | 
 | #set_property -dict { PACKAGE_PIN P15   IOSTANDARD LVCMOS33 } [get_ports { jb[5] }]; #IO_L11N_T1_SRCC_14 Sch=jb_n[3] | 
 | set_property -dict { PACKAGE_PIN N15   IOSTANDARD LVCMOS33 } [get_ports { IO_USB_DNPULLUP0 }]; #IO_L12P_T1_MRCC_14 Sch=jb_p[4] | 
 | #set_property -dict { PACKAGE_PIN P16   IOSTANDARD LVCMOS33 } [get_ports { jb[7] }]; #IO_L12N_T1_MRCC_14 Sch=jb_n[4] | 
 |  | 
 | ## PMOD Header JC | 
 | #set_property -dict { PACKAGE_PIN U15   IOSTANDARD LVCMOS33 } [get_ports { jc[0] }]; #IO_L18P_T2_A12_D28_14 Sch=jc1/ck_io[41] | 
 | #set_property -dict { PACKAGE_PIN V16   IOSTANDARD LVCMOS33 } [get_ports { jc[1] }]; #IO_L18N_T2_A11_D27_14 Sch=jc2/ck_io[40] | 
 | #set_property -dict { PACKAGE_PIN U17   IOSTANDARD LVCMOS33 } [get_ports { jc[2] }]; #IO_L15P_T2_DQS_RDWR_B_14 Sch=jc3/ck_io[39] | 
 | #set_property -dict { PACKAGE_PIN U18   IOSTANDARD LVCMOS33 } [get_ports { jc[3] }]; #IO_L15N_T2_DQS_DOUT_CSO_B_14 Sch=jc4/ck_io[38] | 
 | #set_property -dict { PACKAGE_PIN U16   IOSTANDARD LVCMOS33 } [get_ports { jc[4] }]; #IO_L16P_T2_CSI_B_14 Sch=jc7/ck_io[37] | 
 | #set_property -dict { PACKAGE_PIN P13   IOSTANDARD LVCMOS33 } [get_ports { jc[5] }]; #IO_L19P_T3_A10_D26_14 Sch=jc8/ck_io[36] | 
 | #set_property -dict { PACKAGE_PIN R13   IOSTANDARD LVCMOS33 } [get_ports { jc[6] }]; #IO_L19N_T3_A09_D25_VREF_14 Sch=jc9/ck_io[35] | 
 | #set_property -dict { PACKAGE_PIN V14   IOSTANDARD LVCMOS33 } [get_ports { jc[7] }]; #IO_L20P_T3_A08_D24_14 Sch=jc10/ck_io[34] | 
 |  | 
 | ## PMOD Header JD | 
 | #set_property -dict { PACKAGE_PIN V15   IOSTANDARD LVCMOS33 } [get_ports { jd[0] }]; #IO_L20N_T3_A07_D23_14 Sch=jd1/ck_io[33] | 
 | #set_property -dict { PACKAGE_PIN U12   IOSTANDARD LVCMOS33 } [get_ports { jd[1] }]; #IO_L21P_T3_DQS_14 Sch=jd2/ck_io[32] | 
 | #set_property -dict { PACKAGE_PIN V13   IOSTANDARD LVCMOS33 } [get_ports { jd[2] }]; #IO_L21N_T3_DQS_A06_D22_14 Sch=jd3/ck_io[31] | 
 | #set_property -dict { PACKAGE_PIN T12   IOSTANDARD LVCMOS33 } [get_ports { jd[3] }]; #IO_L22P_T3_A05_D21_14 Sch=jd4/ck_io[30] | 
 | #set_property -dict { PACKAGE_PIN T13   IOSTANDARD LVCMOS33 } [get_ports { jd[4] }]; #IO_L22N_T3_A04_D20_14 Sch=jd7/ck_io[29] | 
 | #set_property -dict { PACKAGE_PIN R11   IOSTANDARD LVCMOS33 } [get_ports { jd[5] }]; #IO_L23P_T3_A03_D19_14 Sch=jd8/ck_io[28] | 
 | #set_property -dict { PACKAGE_PIN T11   IOSTANDARD LVCMOS33 } [get_ports { jd[6] }]; #IO_L23N_T3_A02_D18_14 Sch=jd9/ck_io[27] | 
 | #set_property -dict { PACKAGE_PIN U11   IOSTANDARD LVCMOS33 } [get_ports { jd[7] }]; #IO_L24P_T3_A01_D17_14 Sch=jd10/ck_io[26] | 
 |  | 
 | ## USB-UART Interface | 
 | set_property -dict { PACKAGE_PIN R12   IOSTANDARD LVCMOS33 } [get_ports { IO_UTX }]; #IO_25_14 Sch=uart_rxd_out | 
 | set_property -dict { PACKAGE_PIN V12   IOSTANDARD LVCMOS33 } [get_ports { IO_URX }]; #IO_L24N_T3_A00_D16_14 Sch=uart_txd_in | 
 |  | 
 | ## ChipKit Outer Digital Header | 
 | #set_property -dict { PACKAGE_PIN L13   IOSTANDARD LVCMOS33 } [get_ports { ck_io0 }]; #IO_0_14 Sch=ck_io[0] | 
 | #set_property -dict { PACKAGE_PIN N13   IOSTANDARD LVCMOS33 } [get_ports { ck_io1 }]; #IO_L6N_T0_D08_VREF_14   Sch=ck_io[1] | 
 | #set_property -dict { PACKAGE_PIN L16   IOSTANDARD LVCMOS33 } [get_ports { ck_io2 }]; #IO_L3N_T0_DQS_EMCCLK_14 Sch=ck_io[2] | 
 | #set_property -dict { PACKAGE_PIN R14   IOSTANDARD LVCMOS33 } [get_ports { ck_io3 }]; #IO_L13P_T2_MRCC_14      Sch=ck_io[3] | 
 | #set_property -dict { PACKAGE_PIN T14   IOSTANDARD LVCMOS33 } [get_ports { ck_io4 }]; #IO_L13N_T2_MRCC_14      Sch=ck_io[4] | 
 | #set_property -dict { PACKAGE_PIN R16   IOSTANDARD LVCMOS33 } [get_ports { ck_io5 }]; #IO_L14P_T2_SRCC_14      Sch=ck_io[5] | 
 | #set_property -dict { PACKAGE_PIN R17   IOSTANDARD LVCMOS33 } [get_ports { ck_io6 }]; #IO_L14N_T2_SRCC_14      Sch=ck_io[6] | 
 | #set_property -dict { PACKAGE_PIN V17   IOSTANDARD LVCMOS33 } [get_ports { ck_io7 }]; #IO_L16N_T2_A15_D31_14   Sch=ck_io[7] | 
 | #set_property -dict { PACKAGE_PIN R15   IOSTANDARD LVCMOS33 } [get_ports { ck_io8 }]; #IO_L17P_T2_A14_D30_14   Sch=ck_io[8] | 
 | #set_property -dict { PACKAGE_PIN T15   IOSTANDARD LVCMOS33 } [get_ports { ck_io9 }]; #IO_L17N_T2_A13_D29_14   Sch=ck_io[9] | 
 |  | 
 | ## ChipKit SPI Header | 
 | ## NOTE: The ChipKit SPI header ports can also be used as digital I/O and share FPGA pins with ck_io10-13. Do not use both at the same time. | 
 | #set_property -dict { PACKAGE_PIN H16   IOSTANDARD LVCMOS33 } [get_ports { ck_io10_ss   }]; #IO_L22P_T3_A17_15   Sch=ck_io10_ss | 
 | #set_property -dict { PACKAGE_PIN H17   IOSTANDARD LVCMOS33 } [get_ports { ck_io11_sdi }]; #IO_L22N_T3_A16_15   Sch=ck_io11_sdi | 
 | #set_property -dict { PACKAGE_PIN K14   IOSTANDARD LVCMOS33 } [get_ports { ck_io12_sdo }]; #IO_L23P_T3_FOE_B_15 Sch=ck_io12_sdo | 
 | #set_property -dict { PACKAGE_PIN G16   IOSTANDARD LVCMOS33 } [get_ports { ck_io13_sck  }]; #IO_L14P_T2_SRCC_15  Sch=ck_io13_sck | 
 |  | 
 | ## ChipKit Inner Digital Header | 
 | ## NOTE: these pins are shared with PMOD Headers JC and JD and cannot be used at the same time as the applicable PMOD interface(s) | 
 | #set_property -dict { PACKAGE_PIN U11   IOSTANDARD LVCMOS33 } [get_ports { ck_io26 }]; #IO_L24P_T3_A01_D17_14        Sch=jd10/ck_io[26] | 
 | #set_property -dict { PACKAGE_PIN T11   IOSTANDARD LVCMOS33 } [get_ports { ck_io27 }]; #IO_L23N_T3_A02_D18_14        Sch=jd9/ck_io[27] | 
 | #set_property -dict { PACKAGE_PIN R11   IOSTANDARD LVCMOS33 } [get_ports { ck_io28 }]; #IO_L23P_T3_A03_D19_14        Sch=jd8/ck_io[28] | 
 | #set_property -dict { PACKAGE_PIN T13   IOSTANDARD LVCMOS33 } [get_ports { ck_io29 }]; #IO_L22N_T3_A04_D20_14        Sch=jd7/ck_io[29] | 
 | #set_property -dict { PACKAGE_PIN T12   IOSTANDARD LVCMOS33 } [get_ports { ck_io30 }]; #IO_L22P_T3_A05_D21_14        Sch=jd4/ck_io[30] | 
 | #set_property -dict { PACKAGE_PIN V13   IOSTANDARD LVCMOS33 } [get_ports { ck_io31 }]; #IO_L21N_T3_DQS_A06_D22_14    Sch=jd3/ck_io[31] | 
 | #set_property -dict { PACKAGE_PIN U12   IOSTANDARD LVCMOS33 } [get_ports { ck_io32 }]; #IO_L21P_T3_DQS_14            Sch=jd2/ck_io[32] | 
 | #set_property -dict { PACKAGE_PIN V15   IOSTANDARD LVCMOS33 } [get_ports { ck_io33 }]; #IO_L20N_T3_A07_D23_14        Sch=jd1/ck_io[33] | 
 | #set_property -dict { PACKAGE_PIN V14   IOSTANDARD LVCMOS33 } [get_ports { ck_io34 }]; #IO_L20P_T3_A08_D24_14        Sch=jc10/ck_io[34] | 
 | #set_property -dict { PACKAGE_PIN R13   IOSTANDARD LVCMOS33 } [get_ports { ck_io35 }]; #IO_L19N_T3_A09_D25_VREF_14   Sch=jc9/ck_io[35] | 
 | #set_property -dict { PACKAGE_PIN P13   IOSTANDARD LVCMOS33 } [get_ports { ck_io36 }]; #IO_L19P_T3_A10_D26_14        Sch=jc8/ck_io[36] | 
 | #set_property -dict { PACKAGE_PIN U16   IOSTANDARD LVCMOS33 } [get_ports { ck_io37 }]; #IO_L16P_T2_CSI_B_14          Sch=jc7/ck_io[37] | 
 | #set_property -dict { PACKAGE_PIN U18   IOSTANDARD LVCMOS33 } [get_ports { ck_io38 }]; #IO_L15N_T2_DQS_DOUT_CSO_B_14 Sch=jc4/ck_io[38] | 
 | #set_property -dict { PACKAGE_PIN U17   IOSTANDARD LVCMOS33 } [get_ports { ck_io39 }]; #IO_L15P_T2_DQS_RDWR_B_14     Sch=jc3/ck_io[39] | 
 | #set_property -dict { PACKAGE_PIN V16   IOSTANDARD LVCMOS33 } [get_ports { ck_io40 }]; #IO_L18N_T2_A11_D27_14        Sch=jc2/ck_io[40] | 
 | #set_property -dict { PACKAGE_PIN U15   IOSTANDARD LVCMOS33 } [get_ports { ck_io41 }]; #IO_L18P_T2_A12_D28_14        Sch=jc1/ck_io[41] | 
 |  | 
 | ## Dedicated Analog Inputs | 
 | #set_property -dict { PACKAGE_PIN J10   } [get_ports { vp_in }]; #IO_L1P_T0_AD4P_35 Sch=v_p | 
 | #set_property -dict { PACKAGE_PIN K9    } [get_ports { vn_in }]; #IO_L1N_T0_AD4N_35 Sch=v_n | 
 |  | 
 | ## ChipKit Outer Analog Header - as Single-Ended Analog Inputs | 
 | ## NOTE: These ports can be used as single-ended analog inputs with voltages from 0-3.3V (ChipKit analog pins A0-A5) or as digital I/O. | 
 | ## WARNING: Do not use both sets of constraints at the same time! | 
 | ## NOTE: The following constraints should be used with the XADC IP core when using these ports as analog inputs. | 
 | #set_property -dict { PACKAGE_PIN B13   IOSTANDARD LVCMOS33 } [get_ports { vaux0_p  }]; #IO_L1P_T0_AD0P_15    Sch=ck_an_p[0]   ChipKit pin=A0 | 
 | #set_property -dict { PACKAGE_PIN A13   IOSTANDARD LVCMOS33 } [get_ports { vaux0_n  }]; #IO_L1N_T0_AD0N_15    Sch=ck_an_n[0]   ChipKit pin=A0 | 
 | #set_property -dict { PACKAGE_PIN B15   IOSTANDARD LVCMOS33 } [get_ports { vaux1_p }]; #IO_L3P_T0_DQS_AD1P_15 Sch=ck_an_p[1]   ChipKit pin=A1 | 
 | #set_property -dict { PACKAGE_PIN A15   IOSTANDARD LVCMOS33 } [get_ports { vaux1_n }]; #IO_L3N_T0_DQS_AD1N_15 Sch=ck_an_n[1]   ChipKit pin=A1 | 
 | #set_property -dict { PACKAGE_PIN E12   IOSTANDARD LVCMOS33 } [get_ports { vaux9_p }]; #IO_L5P_T0_AD9P_15     Sch=ck_an_p[2]   ChipKit pin=A2 | 
 | #set_property -dict { PACKAGE_PIN D12   IOSTANDARD LVCMOS33 } [get_ports { vaux9_n }]; #IO_L5N_T0_AD9N_15     Sch=ck_an_n[2]   ChipKit pin=A2 | 
 | #set_property -dict { PACKAGE_PIN B17   IOSTANDARD LVCMOS33 } [get_ports { vaux2_p }]; #IO_L7P_T1_AD2P_15     Sch=ck_an_p[3]   ChipKit pin=A3 | 
 | #set_property -dict { PACKAGE_PIN A17   IOSTANDARD LVCMOS33 } [get_ports { vaux2_n }]; #IO_L7N_T1_AD2N_15     Sch=ck_an_n[3]   ChipKit pin=A3 | 
 | #set_property -dict { PACKAGE_PIN C17   IOSTANDARD LVCMOS33 } [get_ports { vaux10_p }]; #IO_L8P_T1_AD10P_15   Sch=ck_an_p[4]   ChipKit pin=A4 | 
 | #set_property -dict { PACKAGE_PIN B18   IOSTANDARD LVCMOS33 } [get_ports { vaux10_n }]; #IO_L8N_T1_AD10N_15   Sch=ck_an_n[4]   ChipKit pin=A4 | 
 | #set_property -dict { PACKAGE_PIN E16   IOSTANDARD LVCMOS33 } [get_ports { vaux11_p }]; #IO_L10P_T1_AD11P_15  Sch=ck_an_p[5]   ChipKit pin=A5 | 
 | #set_property -dict { PACKAGE_PIN E17   IOSTANDARD LVCMOS33 } [get_ports { vaux11_n }]; #IO_L10N_T1_AD11N_15  Sch=ck_an_n[5]   ChipKit pin=A5 | 
 | ## ChipKit Outer Analog Header - as Digital I/O | 
 | ## NOTE: The following constraints should be used when using these ports as digital I/O. | 
 | #set_property -dict { PACKAGE_PIN G13   IOSTANDARD LVCMOS33 } [get_ports { ck_a0 }]; #IO_0_15            Sch=ck_a[0] | 
 | #set_property -dict { PACKAGE_PIN B16   IOSTANDARD LVCMOS33 } [get_ports { ck_a1 }]; #IO_L4P_T0_15       Sch=ck_a[1] | 
 | #set_property -dict { PACKAGE_PIN A16   IOSTANDARD LVCMOS33 } [get_ports { ck_a2 }]; #IO_L4N_T0_15       Sch=ck_a[2] | 
 | #set_property -dict { PACKAGE_PIN C13   IOSTANDARD LVCMOS33 } [get_ports { ck_a3 }]; #IO_L6P_T0_15       Sch=ck_a[3] | 
 | #set_property -dict { PACKAGE_PIN C14   IOSTANDARD LVCMOS33 } [get_ports { ck_a4 }]; #IO_L6N_T0_VREF_15  Sch=ck_a[4] | 
 | #set_property -dict { PACKAGE_PIN D18   IOSTANDARD LVCMOS33 } [get_ports { ck_a5 }]; #IO_L11P_T1_SRCC_15 Sch=ck_a[5] | 
 |  | 
 | ## ChipKit Inner Analog Header - as Differential Analog Inputs | 
 | ## NOTE: These ports can be used as differential analog inputs with voltages from 0-1.0V (ChipKit analog pins A6-A11) or as digital I/O. | 
 | ## WARNING: Do not use both sets of constraints at the same time! | 
 | ## NOTE: The following constraints should be used with the XADC core when using these ports as analog inputs. | 
 | # FIXED in the same way as Rev E (original had vaux8_p twice and no _n, vaux3_n twice and no _p ChipKit pins were A5-8) | 
 | #set_property -dict { PACKAGE_PIN B14   IOSTANDARD LVCMOS33 } [get_ports { vaux8_p }]; #IO_L2P_T0_AD8P_15     Sch=ad_p[8]    ChipKit pin=A6 | 
 | #set_property -dict { PACKAGE_PIN A14   IOSTANDARD LVCMOS33 } [get_ports { vaux8_n }]; #IO_L2N_T0_AD8N_15     Sch=ad_n[8]    ChipKit pin=A7 | 
 | #set_property -dict { PACKAGE_PIN D16   IOSTANDARD LVCMOS33 } [get_ports { vaux3_p }]; #IO_L9P_T1_DQS_AD3P_15 Sch=ad_p[3]    ChipKit pin=A8 | 
 | #set_property -dict { PACKAGE_PIN D17   IOSTANDARD LVCMOS33 } [get_ports { vaux3_n }]; #IO_L9N_T1_DQS_AD3N_15 Sch=ad_n[3]    ChipKit pin=A9 | 
 | ## ChipKit Inner Analog Header - as Digital I/O | 
 | ## NOTE: The following constraints should be used when using the inner analog header ports as digital I/O. | 
 | #set_property -dict { PACKAGE_PIN B14   IOSTANDARD LVCMOS33 } [get_ports { ck_a6  }]; #IO_L2P_T0_AD8P_15     Sch=ad_p[8] | 
 | #set_property -dict { PACKAGE_PIN A14   IOSTANDARD LVCMOS33 } [get_ports { ck_a7  }]; #IO_L2N_T0_AD8N_15     Sch=ad_n[8] | 
 | #set_property -dict { PACKAGE_PIN D16   IOSTANDARD LVCMOS33 } [get_ports { ck_a8  }]; #IO_L9P_T1_DQS_AD3P_15 Sch=ad_p[3] | 
 | #set_property -dict { PACKAGE_PIN D17   IOSTANDARD LVCMOS33 } [get_ports { ck_a9  }]; #IO_L9N_T1_DQS_AD3N_15 Sch=ad_n[3] | 
 | #set_property -dict { PACKAGE_PIN D14   IOSTANDARD LVCMOS33 } [get_ports { ck_a10 }]; #IO_L12P_T1_MRCC_15    Sch=ck_a10_r   (Cannot be used as an analog input) | 
 | #set_property -dict { PACKAGE_PIN D15   IOSTANDARD LVCMOS33 } [get_ports { ck_a11 }]; #IO_L12N_T1_MRCC_15    Sch=ck_a11_r   (Cannot be used as an analog input) | 
 |  | 
 | ## ChipKit I2C | 
 | #set_property -dict { PACKAGE_PIN J14   IOSTANDARD LVCMOS33 } [get_ports { ck_scl }]; #IO_L24N_T3_RS0_15 Sch=ck_scl | 
 | #set_property -dict { PACKAGE_PIN J13   IOSTANDARD LVCMOS33 } [get_ports { ck_sda }]; #IO_L24P_T3_RS1_15 Sch=ck_sda | 
 |  | 
 | ## Misc. ChipKit Ports | 
 | #set_property -dict { PACKAGE_PIN K13   IOSTANDARD LVCMOS33 } [get_ports { ck_ioa }]; #IO_25_15 Sch=ck_ioa | 
 | set_property -dict { PACKAGE_PIN C18   IOSTANDARD LVCMOS33 } [get_ports { IO_RST_N }]; #IO_L11N_T1_SRCC_15 | 
 |  | 
 | ## Quad SPI Flash | 
 | ## Note: the SCK clock signal can be driven using the STARTUPE2 primitive | 
 | #set_property -dict { PACKAGE_PIN M13   IOSTANDARD LVCMOS33 } [get_ports { qspi_cs }]; #IO_L6P_T0_FCS_B_14 Sch=qspi_cs | 
 | #set_property -dict { PACKAGE_PIN K17   IOSTANDARD LVCMOS33 } [get_ports { qspi_dq[0] }]; #IO_L1P_T0_D00_SDI_14 Sch=qspi_dq[0] | 
 | #set_property -dict { PACKAGE_PIN K18   IOSTANDARD LVCMOS33 } [get_ports { qspi_dq[1] }]; #IO_L1N_T0_D01_DIN_14 Sch=qspi_dq[1] | 
 | #set_property -dict { PACKAGE_PIN L14   IOSTANDARD LVCMOS33 } [get_ports { qspi_dq[2] }]; #IO_L2P_T0_D02_14 Sch=qspi_dq[2] | 
 | #set_property -dict { PACKAGE_PIN M15   IOSTANDARD LVCMOS33 } [get_ports { qspi_dq[3] }]; #IO_L2N_T0_D03_14 Sch=qspi_dq[3] | 
 |  | 
 | ## Configuration options, can be used for all designs | 
 | set_property BITSTREAM.CONFIG.CONFIGRATE 50 [current_design] | 
 | set_property CONFIG_VOLTAGE 3.3 [current_design] | 
 | set_property CFGBVS VCCO [current_design] | 
 | set_property BITSTREAM.CONFIG.SPI_BUSWIDTH 4 [current_design] | 
 | set_property CONFIG_MODE SPIx4 [current_design] | 
 |  | 
 | ## SW3 is assigned to a pin M5 in the 1.35v bank. This pin can also be used as | 
 | ## the VREF for BANK 34. To ensure that SW3 does not define the reference voltage | 
 | ## and to be able to use this pin as an ordinary I/O the following property must | 
 | ## be set to enable an internal VREF for BANK 34. Since a 1.35v supply is being | 
 | ## used the internal reference is set to half that value (i.e. 0.675v). Note that | 
 | ## this property must be set even if SW3 is not used in the design. | 
 | set_property INTERNAL_VREF 0.675 [get_iobanks 34] |