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81 lines
4.1 KiB
Markdown
81 lines
4.1 KiB
Markdown
# SC64 - an open source Nintendo 64 flashcart
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[<img src="assets/sc64_logo_256_160.png" />](assets/sc64_logo_256_160.png)
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---
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## Features
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- 64 MiB SDRAM memory for game and save data
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- 16 MiB FLASH memory for bootloader and extended game data
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- 8 kiB on-chip buffer for general use
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- ~23.8 MiB/s peak transfer rate USB interface for data upload/download and debug functionality
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- ~23.8 MiB/s peak transfer rate SD card interface
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- EEPROM, SRAM and FlashRAM save types with automatic writeback to SD card
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- Battery backed real time clock (RTC)
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- Status LED and button for general use
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- 64DD add-on emulation
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- IS-Viewer 64 debug interface
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- N64 bootloader with support for IPL3 registers spoofing and loading menu from SD card
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- Enhanced [UltraCIC_C](https://github.com/jago85/UltraCIC_C) emulation with automatic region switching and programmable seed/checksum values
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- PC app for communicating with flashcart (game/save data upload/download, feature enable control and debug terminal)
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- [UNFLoader](https://github.com/buu342/N64-UNFLoader) support
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- Initial programming via UART header or dedicated JTAG/SWD interfaces
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- Software and firmware updatable via USB interface
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- 3D printable plastic shell
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---
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## Documentation
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- [Quick startup guide](./docs/00_quick_startup_guide.md)
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- [Memory map](./docs/01_memory_map.md)
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- [USB commands](./docs/02_usb_commands.md)
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- [N64 commands](./docs/03_n64_commands.md)
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- [Config options](./docs/04_config_options.md)
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- [FW/SW building](./docs/05_fw_sw_building.md)
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- [Manufacturing guidelines](./docs/06_manufacturing_guidelines.md)
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---
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## Where's menu?
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Menu, as known from 64drive or EverDrive-64, is currently under development. Progress can be tracked in [N64FlashcartMenu](https://github.com/Polprzewodnikowy/N64FlashcartMenu) repository.
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Ambitious goal of this software is to target every flashcart available on the market. However, main focus for now is getting at least basic UI running on the SC64.
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---
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## Help / Q&A
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For any questions related to this project, please use [*Discussions*](https://github.com/Polprzewodnikowy/SummerCollection/discussions) tab in GitHub repository.
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Do not use my e-mail for these questions, as I want to have a centralized knowledge base accessible for everyone interested in this project.
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I'm also active at [N64brew](https://discord.gg/WqFgNWf) Discord server as `korgeaux#5558` but keep in mind that [*Discussions*](https://github.com/Polprzewodnikowy/SummerCollection/discussions) tab is a preferred option. **Discord is not a replacement for contact form in any way.**
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---
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## High-level flashcart block diagram
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[<img src="assets/sc64_block_diagram.svg" alt="SC64 block diagram" width="800" />](assets/sc64_block_diagram.svg)
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---
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## Finished example
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[<img src="assets/sc64_finished_example.jpg" alt="SC64 finished example" width="800" />](assets/sc64_finished_example.jpg)
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---
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## Acknowledgement
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This project wouldn't be possible without these contributions:
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- [64drive](https://64drive.retroactive.be) orders being on permanent hold long before creating this repository.
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- [EverDrive-64 X7](https://krikzz.com/our-products/cartridges/ed64x7.html) being disappointment for homebrew development (slow USB upload, unjustified price and overcomplicated SD card access).
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- [Jan Goldacker (@jago85)](https://github.com/jago85) and his projects:
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- [Brutzelkarte](https://github.com/jago85/Brutzelkarte_FPGA) providing solid base for starting this project and sparking hope for true open source N64 flashcarts.
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- [UltraCIC_C](https://github.com/jago85/UltraCIC_C) reimplementation for easy integration in modern microcontrollers. Thanks also goes to everyone involved in N64 CIC reverse engineering.
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- [N64brew](https://discord.gg/WqFgNWf) Discord server community being very helpful during flashcart development.
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- [FatFs](http://elm-chan.org/fsw/ff/00index_e.html) FAT32/exFAT library being easiest to integrate in embedded environment.
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- [Yakumono's (@LuigiBlood)](https://twitter.com/LuigiBlood) extensive [64DD documentation](https://github.com/LuigiBlood/64dd/wiki) and its implementation in various emulators.
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- [Libdragon](https://github.com/DragonMinded/libdragon) open source N64 SDK project and its developers.
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