package org.yzh.protocol.t808.T8900Lock;
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import io.github.yezhihao.protostar.annotation.Field;
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import lombok.Data;
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/**
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* 设置离线开锁密码
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*/
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@Data
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public class T8900SetPassword {
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@Field(index = 0, length = 2, desc = "读锁ID命令")
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private byte[] lockId;
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@Field(index = 1, length = 1, desc = "命令类型")
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private byte commandType = 0x04;
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@Field(index = 2, length = 6, desc = "密码1")
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private byte[] password1;
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@Field(index = 3, length = 6, desc = "密码2")
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private byte[] password2;
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@Field(index = 4, length = 6, desc = "密码3")
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private byte[] password3;
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@Field(index = 5, length = 6, desc = "密码4")
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private byte[] password4;
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@Field(index = 6, length = 6, desc = "密码5")
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private byte[] password5;
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@Field(index = 7, length = 6, desc = "密码6")
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private byte[] password6;
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@Field(index = 8, length = 6, desc = "密码7")
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private byte[] password7;
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@Field(index = 9, length = 6, desc = "密码8")
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private byte[] password8;
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@Field(index = 10, length = 6, desc = "密码9")
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private byte[] password9;
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@Field(index = 11, length = 6, desc = "密码10")
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private byte[] password10;
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@Field(index = 12, length = 1, desc = "校验码")
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private byte checksum;
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/**
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* 和校验码计算（取低8位）
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* @param data 要校验的数据
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* @return 校验码
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* */
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public byte calculateSUMChecksum(byte[] data) {
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int sum = 0;
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for (byte b : data) {
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sum += b & 0xFF; // 转换为无符号整数
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}
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return (byte) (sum & 0xFF); // 取低8位
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}
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}
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