3 ms·
Lattice's FPGAs are very nice. With an iCE40 you can have a full featured RISC-V soft-core (RV32IMFAC) at some 80 MHz.
by ruslan 2y ago
Lattice's FPGAs are very nice. With an iCE40 you can have a full featured RISC-V soft-core (RV32IMFAC) at some 80 MHz.
- wyager 2y agoFor a lot of the iCE40 chips, it's extremely difficult to reliably get fMax > 50MHz even with extremely aggressive pipelining. I assume 80MHz is only possible on the highest-speed parts in the iCE40 family I switched a design from iCE40 to ECP5 and got a ~3x speedup "for free" Agreed that using Lattice FPGAs is super nice, mostly because you get to use the open-source Yosys toolchain, which is vastly better than proprietary toolchains IMO