https://github.com/strawberryhacker/chaos

Bare metal multicore ARM® Cortex®-A5/7/17 operating system based on a microkernel architecture, with bare metal TFTP network bootloader.
https://github.com/strawberryhacker/chaos

Last synced: about 2 months ago
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Bare metal multicore ARM® Cortex®-A5/7/17 operating system based on a microkernel architecture, with bare metal TFTP network bootloader.

• Host: GitHub
• URL: https://github.com/strawberryhacker/chaos
• Owner: strawberryhacker
• License: other
• Created: 2021-01-24T17:35:08.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2021-02-07T14:25:40.000Z (over 3 years ago)
• Last Synced: 2024-06-24T01:03:00.905Z (3 months ago)
• Language: C
• Homepage:
• Size: 8.83 MB
• Stars: 8
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• awesome-embedded-software - chaos - Bare metal multicore ARM® Cortex®-A operating system based on a microkernel architecture. (OS / Random Number Generation)

README

        
## Summary

The Chaos OS is a bare metal microkernel targeting embedded systems. It will include various bare metal example in several languages and of course several server examples. Network stack and file systems are just implied. I might also make a USB stack, graphics subsystem and a custom compiler for a new language. 

### Support

I plan on developing the kernel in parallel on these targets

- SAMA5D27 (single-core Cortex-A5)

- SAMA5D4  (single-core Cortex-A5)

- Orange Pi PC (quad-core Cortex-A7)

- Orange Pi (quad-core Cortex-A7 virtualized on QEMU)

- FireFly RK3288 (quad-core Cortex-A17)

### Structure 

The Chaos kernel will be loaded by u-boot into external memory. I do not intend to write any board spesific bootloader. The kernel will have a relocatable PIC stage for relocating itself to the beginning of DDR. This opens the possibilities for soft reboot, in which we can replace a running kernel. This will definitely outperform a u-boot reset. The kernel will have a TFTP component embedded into the kernel which will take care of the soft reboot.