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RISC-V Linux SoC, marchID: 0x2b

License: ISC License

C 15.38% Shell 0.40% Python 0.07% Verilog 12.03% SystemVerilog 2.16% Assembly 14.85% C++ 0.48% Makefile 0.13% AGS Script 51.88% Tcl 2.62%

riscv verilog fpga cpu linux bare-metal linuxsoc mmu rv32ima sv32 systemverilog independent independentriscv

kianriscv's Introduction

RISC-V Linux SoCs: uLinux and MMU Linux.

 __  __ __               ___ ___ _____   __
|  |/  |__|.---.-.-----.|   |   |     |_|__|.-----.--.--.--.--.
|     <|  ||  _  |     ||   |   |       |  ||     |  |  |_   _|
|__|\__|__||___._|__|__| \_____/|_______|__||__|__|_____|__.__|

If you're interested in trying out the KianV SV32 (MMU) RV32IMA Zicntr Linux SoC, complete with virtual memory support, check out the link here: KianV SV32 RV32IMA Zicntr..

With KianV RISC-V uLinux, booting Linux is not just possible, it's exhilarating. That's right! If you've ever wanted to experience Linux booting in a whole new light, this is your chance. Dive deep into the implementation details here.

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kianriscv's Issues

Add quick start instruction to readme

I think it would be nice to have this quick start instruction right in readme:

curl -sL https://tinyurl.com/4cbt7um7 | openFPGALoader --board=tangnano20k --file-type ext --external-flash -f picocom -b 2000000 /dev/ttyUSB1

Icoboard: "Checking 33.33 ns (30.00 MHz) clock constraint: FAILED."

On a recent yosys+nextpnr-ice40 checkout, while trying to build for Icoboard:

...
Info: Program finished normally.
#nextpnr-ice40 -r --pre-pack clocks.py --hx8k --package ct256 --json kianv_soc_icoboard.json --asc kianv_soc_icoboard.asc --opt-timing --pcf icosoc.pcf
#nextpnr-ice40 -r --freq 30 --hx8k --package ct256 --json kianv_soc_icoboard.json --asc kianv_soc_icoboard.asc --pcf icosoc.pcf
icetime -c 30 -d hx8k -mtr kianv_soc_icoboard.rpt kianv_soc_icoboard.asc
// Reading input .asc file..
// Reading 8k chipdb file..
// Creating timing netlist..
// Timing estimate: 37.31 ns (26.80 MHz)
// Checking 33.33 ns (30.00 MHz) clock constraint: FAILED.
make: *** [Makefile.icoboard:30: kianv_soc_icoboard.rpt] Error 1

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