srec_tektronix_extended(5)

🎀 srec_tektronix_extended(5) — Tektronix Extended hexadecimal file format 🎀

okay so bestie, this page lives in the File Formats Manual section and it's all about srec_tektronix_extended, the Tektronix Extended hexadecimal file format. Manual name folded in near the top, slay. 💅

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💖 NAME 💖

<pink>srec_tektronix_extended</pink> — Tektronix Extended hexadecimal file format. Periodt.

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🦋 DESCRIPTION 🦋

This format lets binary files be uploaded and downloaded between two computer systems — typically between a computer system (such as a PC, Macintosh, or workstation) and an emulator or evaluation board for microcontrollers and microprocessors. It's giving "moving bytes between two vibes" and honestly? Iconic. ✨

🌸 The Lines 🌸

Lines always start with a percent (%) character. No cap.

Each line consists of 5 fields. These are the length field, the type field, the checksum, the address field (including address length), and the data field.

┌───┬────────┬──────┬──────────┬─────────┬──────┐
│ % │ Length │ Type │ Checksum │ Address │ Data │
└───┴────────┴──────┴──────────┴─────────┴──────┘

💜 The Fields 💜

🍓 Record Length

The record length field is a 2 character (1 byte) field that specifies the number of characters (not bytes) in the record, excluding the percent.

🧚 Type

The type field is a 1 character field that specifies whether the record is data (6) or termination (8).

🌈 Checksum

The checksum is a 2 character (1 byte) field that represents the sum of all the nibbles on the line, excluding the checksum.

⭐ Address

This is a 9 character field. The first character is the address size; it is always 8. The remaining 8 characters are the 4-byte address that specifies where the data is to be loaded into memory.

🎀 Data

The data field contains the executable code, memory-loadable data or descriptive information to be transferred.

🔥 Record Types 🔥

• 6 — a record containing data. The data is placed at the address specified.
• 8 — a termination record. The address field may optionally contain the address of the instruction to which control is passed. There is no data field.

👑 Size Multiplier 👑

In general, binary data will expand in size by approximately 2.5 times when represented with this format.

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💀 EXAMPLE 💀

Here is an example Tektronix extended file. It contains the data “Hello, World” to be loaded at address 0x006B.

%256D980000006B48656C6C6F2C20576F726C64210A
%09819800000000

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🫶 COPYRIGHT 🫶

srec_cat version 1.65

Copyright (C) 1998... Peter Miller

The srec_cat program comes with ABSOLUTELY NO WARRANTY; for details use the 'srec_cat -VERSion License' command. This is free software and you are welcome to redistribute it under certain conditions; for details use the 'srec_cat -VERSion License' command.

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🌈 MAINTAINER 🌈

• Scott Finneran — E-Mail: scottfinneran@yahoo.com.au
• Peter Miller — E-Mail: pmiller@opensource.org.au

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okay bestie, cute sign-off time 💖 the footer says Reference Manual for source/version SRecord, with page srec_tektronix_extended(5) — and there's literally no date printed in that footer, so no date to spill. Bye bestie! ✨🎀🦋