Re: DECstation 5000/200 timekeeping

David Brownlee <[email protected]>
Newsgroups gmane.os.netbsd.ports.mips.devel
Message-ID <CAGN_6pY5Ku8KLEqOdKGL2N--adkkm9nQ-ML6S=Ehh_BtGq_CGQ@mail.gmail.com> 
On Tue, 26 Oct 2021 at 19:30, Mouse <[email protected]> wrote:
> How complicated is turbochannel from a hardware designer's perspective?
> Or is that not publicly known?  I'm wondering if it'd be practical to
> build a TC board providing proper clock capabilities.  Even if just a
> sampleable free-running counter, once calibrated that could substitute
> for the cycle counter the r3k apparently lacks.

There is prior art for building a TC board with a basic CPLD to act as
glue http://www.flxd.de/tc-usb/

David
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