UART / Serial Protocol Decoder | Cartmill Technologies

Input

Hex Stream

Accepted: 02 10 FF, 0x02,0x10,0xFF, or mixed text. Non-hex characters are ignored.

CSV Upload (optional)

Works with common logic analyzer exports. If your CSV has one byte per row, enable “one byte per row”.

CSV Mode

Frame Splitting

Split Mode

Delimiter (hex byte)

Example: 0D for CR, 0A for LF, 7E for HDLC.

Fixed Length (bytes)

Used only when Split Mode = Fixed.

Include delimiter in frame

Protocol Template (Field Decoder)

Preset

You can edit the template below for custom protocols.

Checksum

Checksum is computed over the bytes you select below.

Checksum Range

CRC16 byte order in frame

Only applies to CRC-16.

Template (JSON)

Template format: [{ name, type, length }] where type in byte | u16 | bytes. Use "length":"payload" for payload based on Length field.

Monetization-ready upgrades: saved projects, multi-protocol libraries, auto-template inference, export to Wireshark dissector / Python parser, and live decode via WebSerial.