Technical Tips & Tricks

A collection of useful technical resources and solutions for embedded systems and identification technologies.

More on Endianness

Code to provide Big and Little Endian support for various types of processors. From Embedded Muse 91.

How to Guess a Checksum Algorithm

Various types of CRC are described in the answer to this question on Stack Overflow.

Unsigned Division for ARM Processors

Fast unsigned division of a 64 bit value by a 32 bit value to give a 32 bit result. Optimized for ARM processors.

Gitjson

NodeRED json file converter json files generated by NodeRED contain long lines with '\n' sequences embedded. This makes it difficult to compare versions using Git. The Gitjson converts all "\n" text sequences to '\n>>\t\t' so that it is easy to view differences in files. The same utility can unconvert the files back to the original format.