public ReadPacket(byte[] readPacket) {
this.command = readPacket[OFFSET_CMD];
this.data = Arrays.copyOfRange(readPacket, OFFSET_DATA, readPacket.length - CRC_LEN);
this.crc = Arrays.copyOfRange(readPacket, readPacket.length - CRC_LEN, readPacket.length);
this.crc_calc = CRC16.calculate(readPacket, 0, readPacket.length - 2);
if (!Arrays.equals(this.crc, this.crc_calc)) {
throw new CRCFailRuntimeException(
"CRC check failed: "
+ Utils.bytesToHex(this.crc)
+ " vs "
+ Utils.bytesToHex(this.crc_calc));
}
}
public Date readDisplayTime() {
return Utils.receiverTimeToDate(readSystemTime() + readDisplayTimeOffset());
}