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Fix checksum calculation for sml (#5271)
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1 changed files with 2 additions and 2 deletions
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@ -100,14 +100,14 @@ bool check_sml_data(const bytes &buffer) {
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}
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uint16_t crc_received = (buffer.at(buffer.size() - 2) << 8) | buffer.at(buffer.size() - 1);
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uint16_t crc_calculated = crc16(buffer.data(), buffer.size(), 0x6e23, 0x8408, true, true);
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uint16_t crc_calculated = crc16(buffer.data(), buffer.size() - 2, 0x6e23, 0x8408, true, true);
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crc_calculated = (crc_calculated >> 8) | (crc_calculated << 8);
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if (crc_received == crc_calculated) {
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ESP_LOGV(TAG, "Checksum verification successful with CRC16/X25.");
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return true;
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}
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crc_calculated = crc16(buffer.data(), buffer.size(), 0xed50, 0x8408);
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crc_calculated = crc16(buffer.data(), buffer.size() - 2, 0xed50, 0x8408);
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if (crc_received == crc_calculated) {
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ESP_LOGV(TAG, "Checksum verification successful with CRC16/KERMIT.");
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return true;
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