kianRiscV
riscv
kianRiscV | riscv | |
---|---|---|
1 | 2 | |
492 | 1,040 | |
- | - | |
7.8 | 1.8 | |
5 days ago | over 2 years ago | |
AGS Script | Verilog | |
ISC License | BSD 3-clause "New" or "Revised" License |
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kianRiscV
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Have I discovered a synthesis/routing defect with the Gowin IDE?
I encountered this issue when having difficulty porting a risc-v softcore (https://github.com/splinedrive/kianRiscV/blob/master/README.md), which works perfectly on two other hardware platforms. The linux boot process would stall about 1M instructions in. I tracked the issue down to the above issue, which differed from simulation results. Straightforward attempts to recreate the defect in a standalone environment failed. Instead I have resorted to stripping back and refactoring the failing softcore implementation layer by layer until reaching a minimal setup which still exhibits the defect. The result is the code below. The code doesn’t do anything meaningful, except exhibit the defect.
riscv
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Ultraembedded RISCV Module
I have been trying to execute some instructions to the ultraembedded riscv module https://github.com/ultraembedded/riscv
- I made my own silicon chip: Project Silicon Rider
What are some alternatives?
biriscv - 32-bit Superscalar RISC-V CPU
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openlane - OpenLane is an automated RTL to GDSII flow based on several components including OpenROAD, Yosys, Magic, Netgen and custom methodology scripts for design exploration and optimization.
icicle - 32-bit RISC-V system on chip for iCE40 FPGAs
darkriscv - opensouce RISC-V cpu core implemented in Verilog from scratch in one night!
zipcpu - A small, light weight, RISC CPU soft core
neorv32 - :rocket: A tiny, customizable and extensible MCU-class 32-bit RISC-V soft-core CPU and microcontroller-like SoC written in platform-independent VHDL.
Toast-RV32i - Pipelined RISC-V RV32I Core in Verilog
s1-ecg-demo - An all-in-one kit to deploy and test ECG algorithms with ease. Based on the AD8233 and S1 Module, this open source board is a great for new products, as well as research and teaching.
uhd - The USRP™ Hardware Driver Repository