Apple-1-HW/RC6502-Apple-1-Replica
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README: Link to the Bus document

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Curt J. Sampson 2020-05-19 20:16:11 +09:00
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README.md
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@ -14,6 +14,8 @@ I've been documenting the build process of the various components on my blog at
## Modules
Like the RC2014 I've decided to keep things very modular with each card more or less doing one simple thing, easier to wrap ones head around as a beginner and a lot easier to understand when troubleshooting - also a lot cheaper to upgrade or replace since you don't actually need to replace the entire thing, just the specific board. With the conversion of the RC6502 computer to a SBC-version (Single Board Computer), you now have the option to build an all in one version on a single PCB - alternatively you can build the completely full-sized version as before if you want to! Most can be accomplished with the SBC version so to start things off, I recommend getting PCBs of the SBC ([order](https://www.pcbway.com/project/shareproject/RC6502_Apple_1_SBC__revision_D_.html?inviteid=88707)) as well as the backplane ([order](https://www.pcbway.com/project/shareproject/RC6502_Apple_1_Replica__Backplane_module_revision_A_.html?inviteid=88707)).
The full-sized system uses a 39-pin bus described in [`Bus.md`](Bus.md). The SBC supports the same bus, allowing you to use expansion cards with it; jumpers on the SBC allow you to disable any of the RAM, ROM, PIA and clock so that their functionality can be replaced by peripheral cards on the bus.
In order to build a single board computer (SBC) of RC6502 you'll need the following modules:
- [RC6502 SBC](https://github.com/tebl/RC6502/tree/master/RC6502%20Apple%201%20SBC) ([order](https://www.pcbway.com/project/shareproject/RC6502_Apple_1_SBC__revision_D_.html?inviteid=88707))