CRC Support for STM32

[JSStabl]

Hi,

does anyone know if there is any support planned for the crc coprocessor found on some of the STMs? There is a community implementaton but it doesn't seem to be currently maintained. A builtin crc check for the SPI or UART driver would be useful too.

Thanks!
Regards
Julian

[Giovanni]

Hi,

There are no immediate eplans, you best option is to polish the contributed one, it is not very complex.

Giovanni

[steved]

I considered the CRC peripheral, and concluded that (in my world, at least) it would mostly be useful as a peripheral 100% dedicated to a specific purpose, probably involving CRC Calculation on large blocks of data. Or maybe where there is a need to compute different types of CRC at various times. To make it generic and thread-safe involves some overhead, and can actually increase execution times if used by multiple threads.
For byte-level and small blocks of data, there are table-orientated calculation routines which are reasonably efficient, and have the advantage of being reentrant.