How can I parse a TFLite model hex array in pure C on an embedded system?

TensorFlow
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Hi!
I have a TensorFlow Lite model that’s been converted into a hexadecimal byte array and embedded in a .h file. My goal is to write plain C code (no external libraries) to:

  1. Decode the hex array back.
  2. Parse the resulting buffer to extract the model’s parameters (e.g. tensor shapes, weight values).

Since this will run on a resource-constrained embedded platform, I cannot rely on any heavy parsing libraries. What’s a good approach for:

Converting the hex string/array into a usable buffer?
Interpreting the TFLite FlatBuffer layout manually in C?

Any pointers, code snippets, or reference materials would be greatly appreciated!