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44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
#include "data/DateTimeData.h"
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#include "SetTimeRequestFrame.h"
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#include "Utils.h"
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SetTimeRequestFrame::SetTimeRequestFrame()
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{
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setCmd(FRAME_CMD_SET_TIME); // 时间请求固定命令字
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setLen(6); // 设置时间请求的数据区固定长度6字节
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}
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SetTimeRequestFrame::~SetTimeRequestFrame()
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{
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}
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// 从Byte字符串解析
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bool SetTimeRequestFrame::fromByteStr(std::string str)
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{
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if(str.length() < 9)
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{
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return false;
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}
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if(!((unsigned char)str.at(0) == 0x5A && (unsigned char)str.at(1) == 0xA5))
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{
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return false;
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}
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int len = Utils::charToShort(str.at(5), str.at(6));
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if(str.length() != (size_t)(7 + len + 2))
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{
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return false;
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}
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setHead(FRAME_HEAD);
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setAddr(Utils::charToShort(str.at(2), str.at(3)));
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setCmd(str.at(4));
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setLen(len);
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if(getLen() > 0 && getLen() < MAX_DATA_LEN) // 最大限制10K
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{
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getData()->fromByteStr(str.substr(7, getLen()));
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}
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setCrc(Utils::charToShort(str.at(getLen()) - 2, str.at(getLen()) - 1));
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return true;
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}
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