echo "Usage: $0 <prog_source> <comm_source> <platform>"
echo " <prog_source> bsl,PORT | mib510,PORT | eprb,PORT"
echo " <comm_source> serial@PORT:SPEED | network@HOST:PORT"
echo "Usage: $0 <prog_source> <comm_source> <platform>"
echo " <prog_source> bsl,PORT | mib510,PORT | eprb,PORT"
echo " <comm_source> serial@PORT:SPEED | network@HOST:PORT"