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23 lines
447 B
JavaScript
23 lines
447 B
JavaScript
5 months ago
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// CRC 校验模块
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// 计算数据包的 CRC 校验值
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function calculateCRC(dataPacket) {
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let sum = 0;
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for (let i = 0; i < 15; i++) {
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sum += dataPacket[i];
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}
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return sum & 0xFF; // 取最低8位
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}
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// 校验CRC值
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function validateCRC(dataPacket) {
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const receivedCRC = dataPacket[15];
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const calculatedCRC = calculateCRC(dataPacket);
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return receivedCRC === calculatedCRC;
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}
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module.exports = {
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calculateCRC,
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validateCRC
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};
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