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#!/bin/bash
set -ex
XILINX_DIR=/opt/Xilinx/14.5/ISE_DS/ISE/
XILINX_PART=xc6slx9-2-tqg144
../../../yosys - << EOT
# read design
read_verilog example.v
# high-level synthesis
hierarchy -check -top top
proc; opt; fsm; opt; techmap; opt
# mapping logic to LUTs using Berkeley ABC
abc -lut 6; opt
# map internal cells to FPGA cells
techmap -map ../cells.v; opt
# insert i/o buffers
iopadmap -outpad OBUF I:O -inpad BUFGP O:I
# write netlist
write_edif synth.edif
EOT
cat > bitgen.ut <<- EOT
-w
-g DebugBitstream:No
-g Binary:no
-g CRC:Enable
-g Reset_on_err:No
-g ConfigRate:2
-g ProgPin:PullUp
-g TckPin:PullUp
-g TdiPin:PullUp
-g TdoPin:PullUp
-g TmsPin:PullUp
-g UnusedPin:PullDown
-g UserID:0xFFFFFFFF
-g ExtMasterCclk_en:No
-g SPI_buswidth:1
-g TIMER_CFG:0xFFFF
-g multipin_wakeup:No
-g StartUpClk:CClk
-g DONE_cycle:4
-g GTS_cycle:5
-g GWE_cycle:6
-g LCK_cycle:NoWait
-g Security:None
-g DonePipe:No
-g DriveDone:No
-g en_sw_gsr:No
-g drive_awake:No
-g sw_clk:Startupclk
-g sw_gwe_cycle:5
-g sw_gts_cycle:4
EOT
$XILINX_DIR/bin/lin64/edif2ngd -a synth.edif synth.ngo
$XILINX_DIR/bin/lin64/ngdbuild -p $XILINX_PART -uc example.ucf synth.ngo synth.ngd
$XILINX_DIR/bin/lin64/map -p $XILINX_PART -w -o mapped.ncd synth.ngd constraints.pcf
$XILINX_DIR/bin/lin64/par -w mapped.ncd placed.ncd constraints.pcf
$XILINX_DIR/bin/lin64/bitgen -f bitgen.ut placed.ncd example.bit constraints.pcf
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