Tiny_SoC

This is my hobby project. After I study RSIC-V CPU and Tiny_LeViT accelerator, I wonder how to connect them with bus, so I make this Tiny_SoC project.

This is not a serious project, so it must be very simple and have many problems. I finish this project with ChatGPT which help me a lot.

Anyway, this project is only for study and understanding SoC.

File Structure

• figure : the figure of project.
• instruction : contain a python file which can translate RSIC-V instruction to binary code for core excution.
• sim : the testbench for simulation.
• src : the RTL file of design.

Architecture

This Tiny_project architecture is all finished by myself. The main part is a RSIC-V CPU and Tiny_LeViT accelerator that I made before. I use AHB-Lite bus connect core, memory and accelerator. ALL architecture you can see in figure below.

• APB is not add until Now.
• I2C is not add until Now.
• The Wrapper is only for Conv4 core, I will extend to whole LeViT accelerator.

RSIC-V instruction

• This CPU can excute 13 instructions (sw,lw,add,sub,and,or,slt,addi,ori,slti,beq,jal,lui).
• You can use instruction/Rsicv2bin.py to get .txt binary file and add it to simulation.

SoC Address

• 32'd0100_0000: RAM, data meomry.
• 32'd1000_0000: Tiny_LeViT Accelerator.

Future Plan

• Finish whole accelerator warpper.
• Add APB and I2C.
• Add DMA.
• Improve RSIC-V core.
• Add Interrupt control module.
• Add peripheral device: SPI, UART, GPIO, Timer.

SoC Study Resource

• Book:

System on Chip (SOC) Architecture: A Practical Approach

A Practical Approach to VLSI System on Chip (SoC) Design: A Comprehensive Guide

• Course:

一生一芯ysyx

SoC 101