# yrv-omdazz

**Repository Path**: zpc987/yrv-omdazz

## Basic Information

- **Project Name**: yrv-omdazz
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Apache-2.0
- **Default Branch**: main
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2026-04-17
- **Last Updated**: 2026-04-17

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# YRV-Plus RISC-V CPU for OMDAZZ board with VGA and PS/2 keyboard

## Scripts description
In  Plus/boards/omdazz/ run
```
  01_clean.bash                   Clean project
  05_synthesize_for_fpga.bash     Synthesize project and load ro FPGA
  06_configure_fpga.bash          Load project to FPGA
  07_upload_soft_to_fpga.bash     Upload binary using UART
  
```
You need USB-to-Serial adapter for loading binary to the FPGA Board.


## Programs Description
```
  01_hello_text        Simple hello world 
  01_tetris            ASCII based tetris game
```

After build you copy  _code_demo.mem32_ to the _Plus/design_ directory

You can run ./07_upload_soft_to_fpga.bash directly form source folder

## Toolchain 

Prebuild toolchain avialable here: https://github.com/stnolting/riscv-gcc-prebuilt

Your should use tag rv32i-4.0.0 

Toolchain should be installed in:  _/opt/riscv_

Minimal version of GCC should be 12.1.0

## Tetris game 
![ASCII Tetris game](/tetris.jpg "Tetris")

## Related books:
"Inside An Open-Source Processor" ISBN 978-3-89576-443-1

"Modern C." Manning, 2019, 9781617295812. ffhal-02383654 Jens Gustedt. 


## Videos
Tetris game: https://youtube.com/shorts/ni1T5zjhiEM


Tetris game: https://youtu.be/BfXtpLc7dgg


Keyboard: https://youtube.com/shorts/ZKTfLrlLjTY