Moti Cohen wrote:
> Hy all,
> I'm currently implementing a receiver (vhdl) part of the ethernet mac
> which is responsible for the MII interafce. I'm need an crc32
> calculator (RTL) to check the FCS field. I've tried using the easics
> crctoll in order to create the mechanism (for a 4 bit data input) but
> it does not seems to work. does anyone have a working (rtl) vhdl
> implementation for this block? or at least a detailed expalnation on
> how to create it..?

Howdy Moti,

I'd be willing to bet that your problem is bit ordering (hint: take
an 8 bit chunk and reverse the order of the bits before throwing it into
the easics checker). Although I'm sure there is probably a way, I don't
quickly see how you'd do it four bits at a time.

Good luck,

Marc