[J-core] Achievable clock speed, bottlenecks?

Rich Felker dalias at libc.org
Sat Oct 1 01:51:23 EDT 2016

Reportedly the mor1k implementation of or1k is running at 150 MHz on
Kintex 7s, dual-core even. Any ideas what might be preventing J2 from
achieving comparable clock rate? Not being an expert on the hardware
side of things, my naive guess would be that having all the
peripherals on the main bus at cpu clock is a major obstacle to
meeting timing constraints at higher clocks.


More information about the J-core mailing list