pycrc for Linux 0.7.10

pycrc is a free, easy to use Cyclic Redundancy Check (CRC) calculator and source code generator<br /><br />pycrc provides CRC reference implementations in Python and a source code generator for C. The used CRC variant can be chosen from a fast but space-consuming implementation to slower but smaller versions especially suitable for embedded applications. The models can be freely chosen, but a comprehensive collection of CRC models is available by name. The following functions are implemented:<br /><br /> * calculate the checksum of a string or a file.<br /> * generate the source files for a "C" implementation. <br /><br />The following variants of the CRC algorithm are supported:<br /><br /> * bit-by-bit: the basic algorithm which operates individually on every bit of the augmented message (i.e. the input data with width 0-bits attached to the end). This algorithm is the easiest one to understand, because it's a direct implementation of the basic polynomial division, but it is also the slowest among all possible variants.<br /> * bit-by-bit-fast: a variation of the simple bit-by-bit algorithm, which doesn't need the augmented message. This algorithm might be a good choice for embedded platforms, where code space is a major concern.<br /> * table-driven: the standard table driven algorithm. This is the fastest variant, because it operates on bytes as opposed to bits, and uses a look-up table of 256 elements, which might not be feasible for small embedded systems, though. Anyway, the number of elements in the look-up table can be reduced by means of the --table_idx_with command line switch. By using 4 bits (16 elements in the look-up table) the code is still very fast (roughly half the speed of a 8-bit table-driven code) but much more compact. <br /><br />pycrc is released under the terms of the MIT licence.

Requirements:	No special requirements
Platforms:	*nix, Linux
Keyword:	Algorithm,  Augmented,  Basic,  Bit Bit,  Elements,  Embedded,  Generate,  Implementation,  Lookup,  Message,  Operates,  Slower,  Suitable,  Table,  Variants,  Width
Users rating:	0/10