What is the max frequency that rocket-chip could run on xc7k325T-2?

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What is the max frequency that rocket-chip could run on xc7k325T-2? #111

Closed hyf6661669 closed 5 years ago

hyf6661669 commented 5 years ago

I'm using a GENESYS2 board from Digilent with xc7k325T-2. The board is a little bit different from KC705 in hardware but should be able to run rocket-chip easily. In this link

https://www.lowrisc.org/docs/untether-v0.2/fpga-demo

it says in KC705 the running frequency is 50MHz. Does anyone know the max frequency that rocket-chip with FPU could run on xc7k325T-2?

jrrk commented 5 years ago

I have seen figures of a 25% boost compared to Artix, but there is not a completely free choice of DDR frequencies.