Matching CRC32 from STM32F0 and zlib

Question

I\'m working on a communication link between a computer running Linux and a STM32F0. I want to use some kind of error detection for my packets and since the STM32F0 has CRC32 hw

Answer 1

The CRC32 implementation on STM32Fx seems to be not the standard CRC32 implementation you find on many online CRC calculators and the one used in zip.

STM32 implements CRC32-MPEG2 which uses big endian and no final flip mask compared to the zip CRC32 which uses little endian and a final flip mask.

I found this online calculator which supports CRC32-MPEG2.

If you are more interested on other CRC algorithms and their implementation, look at this link.

PS: The HAL driver from STM supports input in byte, half word and word formats and they seem to work fine for STM32F0x in v1.3.1