Hex2file is a dedicated, portable command-line tool designed to convert Intel HEX format compatible files into raw binary data or custom file formats. In embedded software development, microcontrollers rely on binary files (.bin) for flashing firmware, but compilers often output Intel HEX records (.hex)—which are actually readable ASCII text.
The utility closes this gap by accurately parsing the hex addresses and data, filtering out formatting text, and writing the underlying binary bits directly to an output file. Key Capabilities of Hex2file
Multi-View Inspection: Beyond standard file creation, it allows developers to view and print the contents of an Intel HEX file directly to a text terminal in customizable layouts.
Cross-Platform Portability: Binaries for the tool are fully compatible and available to run across both Linux and Windows environments.
Custom Format Specifiers: It supports parameters that parse specific Intel HEX record types, managing data payloads without corrupting the memory-mapped architecture. Command Syntax & How to Use It
The utility operates using a straightforward, parameter-driven command-line structure: hex2file Use code with caution.
: The target path to your existing Intel HEX text file.
: The destination path for your newly generated binary file. If you substitute this argument with the word screen, the tool prints the contents to your terminal instead of generating a file.
[format specifier]: An optional rule defining how you want the output data structure mapped out. Example: Verifying Code Structure on Screen
To print the contents of a microcontroller firmware file (sample.hex) in a raw hexadecimal structure on your monitor without compiling a file, you would run: hex2file sample.hex screen Use code with caution. Hex-to-Binary Core Concepts
The tool works because of the fixed mathematical relationship between base-16 (Hexadecimal) and base-2 (Binary).
The 1-to-4 Rule: Exactly one hexadecimal digit map to four binary bits (a nibble).
Data Compaction: An ASCII text-based .hex file requires two bytes of storage just to write a character string like FF. When hex2file converts it, those two characters compress into a single, true 8-bit binary byte (11111111), stripping file sizes down by over 50%. Binary Equivalent Binary Equivalent 0 0000 8 1000 1 0001 9 1001 2 0010 A 1010 3 0011 B 1011 4 0100 C 1100 5 0101 D 1101 6 0110 E 1110 7 0111 F 1111
(Example: The hex values 2F translate to a combined binary byte of 00101111.) Alternative Utilities GENERAL: Making Hex Files from Binary Files – Arm Developer
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