bad6502 update 6 - 4 Mhz barrier broken - bad6502 the retro computer that needs no chips

The chip shortage is upon us - nothing can fix that for now. So let's build a vintage style computer from parts that are available - and as little of them as possible. Impossible ? OpenSource ?

Update 6:

• More updates regarding bus performance
• 4 Mhz barrier broken - simple loop test reaches 5.2 Mhz tops!
• built a bad6502 mini PC

Source files are available here: (but the repos may lag behind) https://github.com/dherrendoerfer/bad6502

Hardware (PCB) files: https://easyeda.com/dherrendoerfer/bad6502

The Commander X16 project: https://www.commanderx16.com/

About the bad6502: Presenting the bad6502, the 35 Dollar 6502 based computer that has needs no chips. Features (subject to change):

• HDMI
• USB keyboard
• Wifi, Bluetooth
• 1+ MHz WDC65C02
• Embedded development platform

Ok, honestly: ... its a 65C02 with emulated hardware on a Raspberry Pi Zero 2W. But it's cheap and fun and available now. Still fiddling with the hard and software a lot.

More soon !

If you like what you see, and want to help out making this sort of development and production possible in the future, please consider a small donation at: https://www.paypal.me/dherrendoerfer This helps a lot in keeping the channel and its content free and un-influenced. ... https://www.youtube.com/watch?v=5uTwQAQn8lQ