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#!/bin/sh -
# Voodoo to load a new bitstream image into the FPGA on a Novena PVT-1.
if test $# -ne 1 || test ! -f "$1"
then
echo 1>&2 "usage: $0 bitstream-file"
exit 1
fi
echo "Setting export of reset pin"
echo 135 > /sys/class/gpio/export
echo "Setting reset pin to out"
echo out > /sys/class/gpio/gpio135/direction
echo "Flipping reset"
echo 0 > /sys/class/gpio/gpio135/value
echo 1 > /sys/class/gpio/gpio135/value
echo "Configuring FPGA from $1"
dd if="$1" of=/dev/spidev2.0 bs=128
echo "Turning on clock to FPGA"
eim_peek_poke --write 0x020c8160 0x00000d2b
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