1#!/bin/bash 2 3home_dir=$(pwd) 4 5if test -d "/sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr"; then 6 cd /sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr 7else 8 cd /sys/devices/soc0/fpga-axi\@0/fpga-axi\@0\:sdr 9fi 10 11set -x 12#set 13if [[ -n $1 ]]; then 14 echo "4$1" > csma_cfg0 15fi 16 17# show 18cat csma_cfg0 19set +x 20 21cd $home_dir 22