|author||wajehulhasan <email@example.com>||Sat Jul 03 20:13:34 2021 +0100|
|committer||wajehulhasan <firstname.lastname@example.org>||Sat Jul 03 20:13:34 2021 +0100|
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LEXICON RISC-V Core 1.0 from MERL This repository contains the Lexicon Core design RTL. Lexicon Is A Machine-Mode (M-Mode) Only, 32-Bit Cpu Small Core Which Supports Risc-V�s Integer (I), Compressed Instruction (C), Multiplication And Division (M), And Instruction-Fetch Fence, And Csr Extensions. The Core Contains A 4-Stage, Scalar, In-Order Pipeline
Directory Structure +-- verlog # User verilog Directory � +-- rtl # RTL � +-- dv # Design Verification � +-- gl # Gate Level Netlis The Lexicon Source Code is avaialable here +-- verlog # User verilog Directory � +-- rtl # RTL | +-- user_project_wrapper.v # User Project Wrapper source file | +-- user_proj_example.v # User Project Example source file | +-- Lexicon # Lexicon folder | +-- Lexicon.v # Lexicon source file | +-- sky130_sram_1kbyte_1rw1r_32x256_8.v # 1KB sram The Design Verification Testbench is available here +-- verlog # User verilog Directory � +-- dv # Design Verification � +-- Lexicon # Design Test Directory � +-- hex # Hex files folder � +-- asm # Assmebly files folder The synthesized netlist is present here: +-- verlog # User verilog Directory � +-- gl # Gate Level Netlis � +-- user_project_wrapper.v # User Project Wrapper Netlist � +-- user_proj_example.v # User Project Example Netlist The hardened macros are placed here: +-- def # def Directory � +-- user_project_wrapper.def # User Project Wrapper def file
+-- lef # lef Directory � +-- user_project_wrapper.lef # User Project Wrapper lef file � +-- user_proj_example.lef # User Project Example lef file
+-- gds # gds Directory � +-- user_project_wrapper.gdz.gz # User Project Wrapper gds � +-- user_proj_example.gdz.gz # User Project Example gds Testing of Design Go to verilog/dv/Lexicon/ directory
Set the GCC_PATH environment variable. Set the PDK_PATH environment variable. Copy the given program hex file into uart.hex. run the make commad for RTL simulation run the SIM=GL make command for netlist simulation Note: Dont forget to add 00000FFF instruction in the end of the uart.hex to stop the uart transmission if you are using your own codes.