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#!/bin/bash
set -ex
mkdir -p colbuf_io_u4k.work
cd colbuf_io_u4k.work
glb_pins="20 35 37 44"
pins="
2 3 4 6 9 10 11 12
13 18 19 20 21
25 26 27 28 31 32 34 35 36
37 38 42 43 44 45 46 47 48
"
pins="$( echo $pins )"
for pin in $pins; do
pf="colbuf_io_u4k_$pin"
gpin=$( echo $glb_pins | tr ' ' '\n' | grep -v $pin | sort -R | head -n1; )
cat > ${pf}.v <<- EOT
module top (input clk, data, output pin);
wire gc;
SB_GB_IO #(
.PIN_TYPE(6'b 0000_00),
.PULLUP(1'b0),
.NEG_TRIGGER(1'b0),
.IO_STANDARD("SB_LVCMOS")
) gbuf (
.PACKAGE_PIN(clk),
.GLOBAL_BUFFER_OUTPUT(gc)
);
SB_IO #(
.PIN_TYPE(6'b 0101_00)
) pin_obuf (
.PACKAGE_PIN(pin),
.OUTPUT_CLK(gc),
.D_OUT_0(data)
);
endmodule
EOT
echo "set_io pin $pin" > ${pf}.pcf
echo "set_io clk $gpin" >> ${pf}.pcf
ICEDEV=u4k-sg48 bash ../../icecube.sh ${pf}.v > ${pf}.log 2>&1
../../../icebox/icebox_explain.py ${pf}.asc > ${pf}.exp
rm -rf ${pf}.tmp
done
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