(str.getBytes(),0,field[61].data,0,13);
arraycopy(licenceNum,0,field[61].data,13,4);
arraycopy...(pk.len,0,pk.txBuffer,0,2);
arraycopy(pk.tpdu,0,pk.txBuffer,2,5);
arraycopy(pk.head,0...,pk.txBuffer,7,6);
arraycopy(pk.msgType,0,pk.txBuffer,13,2);
arraycopy(pk.bitMap,0,pk.txBuffer...(rxbuf,15,bitMap,0,8);
arraycopy(rxbuf,0,pack.len,0,2);
arraycopy(rxbuf,7,pack.head,0,6...);
arraycopy(rxbuf,13,pack.msgType,0,2);
arraycopy(rxbuf,15,pack.bitMap,0,8);