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| | | package com.dy.common.mw.protocol.p206V1; |
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| | | |
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| | | import com.dy.common.mw.channel.tcp.TcpIoSessionAttrIdIsRtuAddr; |
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| | | import com.dy.common.util.ByteUtil; |
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| | | import com.dy.common.util.ByteUtilUnsigned; |
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| | | import com.dy.common.util.CRC16; |
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| | | import com.dy.common.util.CRC8_for_2_0; |
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| | | import org.apache.mina.core.session.IoSession; |
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| | | |
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| | | |
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| | | public class CommonV1 { |
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| | | |
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| | | |
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| | | /** |
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| | | * 检查头 |
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| | | * @param bs 上行字节数组 |
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| | |
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| | | int len = ByteUtilUnsigned.byte2Byte(bs, ProtocolConstantV206V1.dataLenIndex); |
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| | | return len + ProtocolConstantV206V1.lenHead2ctrl + ProtocolConstantV206V1.lenTail; |
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| | | }else{ |
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| | | int len = ByteUtilUnsigned.bytes2Short_BE(bs, ProtocolConstantV206V1.UG_dataLenIndex_start); |
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| | | int len = ByteUtilUnsigned.bytes2Short_LE(bs, ProtocolConstantV206V1.UG_dataLenIndex_start); |
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| | | return len + ProtocolConstantV206V1.UG_lenHead2Cmd + ProtocolConstantV206V1.UG_lenTail; |
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| | | } |
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| | | } |
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| | | return "计算CRC是:" + crcCompute + "，上传CRC是" + crcInBs ; |
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| | | } |
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| | | }else{ |
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| | | int crcCompute = (byte)new CRC16().CRC(bs, ProtocolConstantV206V1.ctrlIndex, bs.length - 3) ; |
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| | | int crcInBs = ByteUtilUnsigned.bytes2Short_BE(bs, bs.length - 3) ; |
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| | | short crcCompute = new CRC16().CRC(bs, 0, bs.length - 4) ; |
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| | | short crcInBs = ByteUtil.bytes2Short_BE(bs,bs.length - 3) ; |
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| | | //int crcInBs = ByteUtilUnsigned.bytes2Short_BE(bs, bs.length - 3) ; |
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| | | if(crcCompute == crcInBs){ |
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| | | return null ; |
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| | | }else{ |
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