初次修改

whyclj

2021-01-05 64aba412c2b739d67795b14a3cae069d311697f9

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package com.dev.fbs9100; 
 
import java.nio.ByteBuffer; 
import java.nio.ByteOrder; 
import java.util.Arrays; 
 
public class FBS9100_Cmd  
{ 
    public final int BYTE_LEN = 10; 
     
    private int SYNCode[] = {0xAA, 0xAA, 0xAA, 0xAA}; 
    private int ByteCount; 
    public int CMD; 
    public int RES_Index; 
    private int CRC; 
     
    public void makeCmd(int addr, int cmd, int bytecount) 
    { 
        ByteCount = 4 + bytecount; 
        CMD = cmd; 
        RES_Index = addr; 
    } 
     
    public boolean putByteBuffer(final ByteBuffer bf) 
    { 
        if(bf.limit() < BYTE_LEN) 
            return false; 
 
        ByteBuffer tmpbuf = bf; 
        int crc0 = tmpbuf.getShort(BYTE_LEN-2) & 0xFFFF; 
        int crc1 = FBS9100_Crc16.CalCRC16(tmpbuf, BYTE_LEN-2); 
        if(crc0 != crc1) 
            return false; 
 
        tmpbuf.position(0); 
        for(int n=0; n<4; n++){ 
            SYNCode[n] = FBS9100_ComBase.changeByteToInt(tmpbuf.get()); 
             
        } 
        ByteCount = FBS9100_ComBase.changeShortToInt(tmpbuf.getShort()); 
        CMD = FBS9100_ComBase.changeByteToInt(tmpbuf.get()); 
        RES_Index = FBS9100_ComBase.changeByteToInt(tmpbuf.get()); 
        CRC = FBS9100_ComBase.changeShortToInt(tmpbuf.getShort()); 
         
        tmpbuf.compact(); 
        tmpbuf.flip(); 
         
        return true; 
    } 
     
    public ByteBuffer getByteBuffer() 
    { 
        ByteBuffer bytebuffer = ByteBuffer.allocate(BYTE_LEN); 
        bytebuffer.order(ByteOrder.LITTLE_ENDIAN); 
 
        for(int n=0; n<4; n++){ 
            //System.out.println(FBS9100_ComBase.changeIntToByte(SYNCode[n])); 
            bytebuffer.put(FBS9100_ComBase.changeIntToByte(SYNCode[n])); 
        } 
        bytebuffer.putShort(FBS9100_ComBase.changeIntToShort(ByteCount)); 
        bytebuffer.put(FBS9100_ComBase.changeIntToByte(CMD)); 
        bytebuffer.put(FBS9100_ComBase.changeIntToByte(RES_Index)); 
         
        CRC = FBS9100_Crc16.CalCRC16(bytebuffer, bytebuffer.position()); 
        bytebuffer.putShort(FBS9100_ComBase.changeIntToShort(CRC)); 
        bytebuffer.flip(); 
         
        return bytebuffer; 
    } 
 
    @Override 
    public String toString() { 
        return "FBS9100_Cmd [BYTE_LEN=" + BYTE_LEN + ", SYNCode=" + Arrays.toString(SYNCode) + ", ByteCount=" 
                + ByteCount + ", CMD=" + CMD + ", RES_Index=" + RES_Index + ", CRC=" + CRC + "]"; 
    } 
     
     
     
} 
/*************************************************************************************** 
******************************** end of file (FBS_Cmd) ********************************* 
***************************************************************************************/