How Much Would It Cost For A Truly Open Source RISC-V SOC?

• litedram

  6 355 6.6 Python

  Small footprint and configurable DRAM core

If you use LiteX to generate a VexRiscV system-on-a-chip, you can include an open source DDR DRAM PHY. This works on Xilinx Spartan-6, Spartan7Artix7/Kintex7/Virtex7 FPGAs, and Lattice ECP5 FPGAs. DDR/LPDDR/DDR2/DDR3 depending on the FPGA.

• litex

  29 2,672 9.7 C

  Build your hardware, easily!

If you use LiteX to generate a VexRiscV system-on-a-chip, you can include an open source DDR DRAM PHY. This works on Xilinx Spartan-6, Spartan7Artix7/Kintex7/Virtex7 FPGAs, and Lattice ECP5 FPGAs. DDR/LPDDR/DDR2/DDR3 depending on the FPGA.

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• VexRiscv

  21 2,244 7.6 Assembly

  A FPGA friendly 32 bit RISC-V CPU implementation

  

If you use LiteX to generate a VexRiscV system-on-a-chip, you can include an open source DDR DRAM PHY. This works on Xilinx Spartan-6, Spartan7Artix7/Kintex7/Virtex7 FPGAs, and Lattice ECP5 FPGAs. DDR/LPDDR/DDR2/DDR3 depending on the FPGA.

• OpenSERDES

  1 115 10.0 Verilog

  Digitally synthesizable architecture for SerDes using Skywater Open PDK 130 nm technology.

But here is an open source ASIC-proven serdes block, [OpenSERDES](https://github.com/SparcLab/OpenSERDES). [Here's the paper describing it](https://arxiv.org/abs/2105.13256). It's only 2 Gb/s per link, but it seems like that would be enough to do DDR3. It is available on Skywater OpenPDK 130nm.

Suggest a related project