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Update roadmap and project status

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Terence Boldt 2021-03-29 08:18:58 -04:00 committed by GitHub
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README.md
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@ -4,32 +4,25 @@ Apple II expansion card using a Raspberry Pi for I/O
![Image of Board](/Hardware/Apple2IORPi.jpg)
## Purpose
The purpose of this project is to provide I/O for an Apple II series 8 bit computer via a Raspberry Pi Zero W which is powered by the Apple II expansion bus. Initially this is storage via virtual ProDOS compatible drive. There is also support for executing Linux commands from the Apple II via a rudimentary console. Next might be adding virtual serial card support over wifi. Future enhancements could use the RPi for more complex processing as per request from the Apple II. For example, the Apple II could request a web page or application and the RPi could calculate this in Apple II hi-res graphics mode and send the image data back to the II for display purposes.
The purpose of this project is to provide I/O for an Apple II series 8 bit computer via a Raspberry Pi Zero W which is powered by the Apple II expansion bus. This includes using attached RPi Zero W for it's storage, network and processor to provide new functionality for the Apple II.
## Project Status
This is an early stage project. Currently four prototype revisions have been assembled and tested. It is now possible for the Apple II to boot from and write to a virutal hard drive image stored on the RPi in any slot and execute simple commands on the RPi via an Apple II application. The code has no error handling or tests yet and is incomplete.
So far, this is a project and not a finished product. The current prototype is on the fourth revision and a few have been assembled and tested. It is now possible for the Apple II to boot from and write to a virutal hard drive image stored on the RPi in any slot and execute simple commands on the RPi via the Apple II. The code has no error handling or tests yet and is incomplete.
## Roadmap
1. DONE - Build initial prototype that reads/writes virtual hard drive
2. DONE - Create firmware to make the card a bootable device
3. DONE - Fix board with updated second prototype PCB
4. DONE - Add ProDOS clock support
5. DONE - Add simple RPi command execution (does not keep context between commands yet)
6. DONE - Create new schematic/PCB with faster data transfera
7. DONE - Add hardware support for in-system firmware updates
8. DONE - Add multi-page firmware support
9. DONE - Add boot menu
10. DONE - Add RPi command in firmware
11. Add firmware update software
12. Add proper ProDOS clock driver (currently just directly sets values on block reads)
13. Add directory context to RPi command execution
14. Add full terminal emulation
15. Add support for direct file read/write without drive image
16. Add web service call support
17. Proxy VNC connection, rendering as Apple II compatible graphics
1. Wifi setup tool
2. Help in command line
3. Software on default image to get firmware updates
4. Proper ProDOS clock driver (currently just directly sets values on block reads)
5. Support for direct file read/write without drive image
6. Image conversion on download
7. Web service call support
8. Full terminal emulation
9. Remote code execution
10. Proxy VNC connection, rendering as Apple II compatible graphics
## Setup
1. Have PCBs made from the gerber and drill files in the Hardware folder or email me for a board
1. Have PCBs made from the gerber and drill files in the Hardware folder or email me for a blank or fully assembled board
2. Solder chips, header and capacitors in place
3. Attach Raspberry Pi Zero W facing outward from the card
4. Install Raspberry Pi OS on microSD card https://www.raspberrypi.org/software/