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I see that what they recommend for the freedom platform https://www.sifive.com/products/freedom/ https://www.sifive.com/products/freedom/ today, is a dev boar
by e12e 10y ago
I see that what they recommend for the freedom platform
https://www.sifive.com/products/freedom/ https://www.sifive.com/products/freedom/
today, is a dev board
https://dev.sifive.com/freedom-soc/evaluate/fpga/ https://dev.sifive.com/freedom-soc/evaluate/fpga/
that costs around 3500 USD:
https://www.avnet.com/shop/us/p/kits-and-tools/development-kits/xilinx/ek-v7-vc707-g-3074457345626227804/ https://www.avnet.com/shop/us/p/kits-and-tools/development-k...
Do anyone here know what kind of "classic pc" performance one is likely to get out of a board like that? Could you get on the order of low-end pc (~500 dollar soc / netbook with real gigabit ethernet, sata6 and usb3) from something like that, if paired up with a reasonable cpu design?
- q3k 10y agoA somewhat speed-optimized IP CPU core [1] runs at 600DMIPs on a Virtex7. I would hope that SiFive is in the same ballpark, but it's probably slower. Even in a best-case scenario, this is nowhere near a low end consumer PC. edit: For reference, my 5 years old Thinkpad x230 does around 7400 DMIPs per core. [1] - https://www.xilinx.com/products/design-tools/microblaze.html https://www.xilinx.com/products/design-tools/microblaze.html
- e12e 10y agoWell, that actually sounds a lot better than I feared - I have a aging aspire acer one that works fine as a lightweight Linux desktop.
- brucehoult 10y agoThe $3500 board is a lot, yes. There is also a $99 "Arty" board that is enough to run what is in the HiFive1, and I think even to add an MMU and run Linux. The $3500 one has enough space to do multiple cores, FPU and so forth as well. Both the $99 and $3500 FPGA boards run a Rocket CPU at 65 MHz, which is pretty slow, though faster than you get with a software cycle-accurate simulator on a workstation.