FAQ

Why does checksum validation fail on decode?

• Ensure the @Checksum range [start, start+length) excludes the checksum storage bytes.
• Confirm byteOrder matches how the device writes multi-byte checksum values.

How to choose between CRC16 variants?

• MODBUS: field devices/PLC
• CCITT: telecom/embedded
• Keep polynomial/init/refin/refout consistent with the spec.

Can I use Big-Endian globally?

• Yes. Use @DefaultByteOrder(ByteOrder.BIG) and override per field if needed.