hostside/reprogram

   1 #!/bin/bash
   2
   3 set -e
   4
   5 fail () { echo >&2 "$0: error: $*"; exit 1; }
   6
   7 if [ $# != 2 ]; then cat >&2 <<END; exit 1; fi
   8  usage:
   9   ./reprogram /dev/ttyS0 LOCO|FILENAME
  10   where LOCO means ./LOCO.cv-s
  11   and FILENAME must contain a slash
  12 END
  13
  14 port="$1"; shift
  15 filename="$1"; shift
  16
  17 case "$filename" in
  18 */*)    ;;
  19 *)      filename="$filename.cv-s"
  20         make "$filename"
  21         ;;
  22 esac
  23 exec <"$filename"
  24
  25 while read cv value; do
  26         case "$cv" in
  27         addr)
  28                 [ x$addr = x ] || fail 'addr twice'
  29                 addr=$(( $value + 0 ))
  30                 ;;
  31         [0-9]*)
  32                 cv=$(( $cv + 0 ))
  33                 value=$(( $value + 0 ))
  34                 cvlist="$cvlist $cv=$value"
  35                 ;;
  36         '#'*|'')
  37                 ;;
  38         *)
  39                 fail "invalid syntax: $cv $value"
  40                 ;;
  41         esac
  42 done
  43
  44 echo "Factory reset"
  45 ./factory-reset-svc "$port"
  46
  47 echo "Setting address to $addr"
  48 ./program-cv-svc "$port" 1 $addr
  49
  50 for cvv in $cvlist; do
  51         sleep 1
  52         cv=${cvv%=*}
  53         value=${cvv#*=}
  54         echo "Setting CV $cv = $value"
  55         ./program-cv "$port" $addr $cv $value
  56 done