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#!/bin/bash
OLD_IP=""
while true
do
IP=$(ip a | awk '/inet.*global/ {split ($2,A,"/"); print A[1]}')
if [ "${IP}" != "${OLD_IP}" ]
then
if [ -n "${IP}" ]
then
IP_1=$(echo "${IP}" | cut -d "." -f 1)
IP_2=$(echo "${IP}" | cut -d "." -f 2)
IP_3=$(echo "${IP}" | cut -d "." -f 3)
IP_4=$(echo "${IP}" | cut -d "." -f 4)
else
IP_1=0
IP_2=0
IP_3=0
IP_4=0
fi
echo "Transfer current IP address (${IP_1}.${IP_2}.${IP_3}.${IP_4}) to the FPGA"
i2cset -y 2 0x50 0 "${IP_1}"
i2cset -y 2 0x50 1 "${IP_2}"
i2cset -y 2 0x50 2 "${IP_3}"
i2cset -y 2 0x50 3 "${IP_4}"
OLD_IP=${IP}
fi
sleep 5
done
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