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Groups > comp.sys.apple2.programmer > #5985

Re: Directly connecting the Raspberry Pi Pico to the Apple II slot bus

Newsgroups comp.sys.apple2.programmer
Date 2022-08-28 19:24 -0700
References <tde70j$rj5n$1@solani.org>
Message-ID <c7d8eeda-6844-4e70-80f2-175d4d329e6fn@googlegroups.com> (permalink)
Subject Re: Directly connecting the Raspberry Pi Pico to the Apple II slot bus
From Anthony Ortiz <anthonypaulo@gmail.com>

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On Monday, August 15, 2022 at 3:32:37 PM UTC-4, Oliver Schmidt wrote:
> Hi, 
> 
> I wanted to let you know that it actually is feasible to directly 
> connect the Raspberry Pi Pico to the Apple II slot bus. Today I 
> published my Pico source code that makes this possible: 
> 
> https://github.com/a2retrosystems/A2retroNET 
> 
> Regards, 
> Oliver

Oliver, good stuff man! I've been on the comp.sys.apple2 group and didn't see this post. I never worked on the Pico but about 5 years ago I was fooling around with my PI 3 and made it so that I could read/write to the Apple II bus via GPIO bit-banging. Back then I only used 8 pins for the bus so I had to push the LO and HI address bytes as well as the data bytes separately into some flip-flops, but recently I've revisited the project and I'm in the middle of simplifying it to an FPGA, but I think I'm going to go with the Max V CPLD instead. What are your plans for the Pico?

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Thread

Directly connecting the Raspberry Pi Pico to the Apple II slot bus ol.sc@web.de (Oliver Schmidt) - 2022-08-15 19:32 +0000
  Re: Directly connecting the Raspberry Pi Pico to the Apple II slot bus Anthony Ortiz <anthonypaulo@gmail.com> - 2022-08-28 19:24 -0700
    Re: Directly connecting the Raspberry Pi Pico to the Apple II slot bus ol.sc@web.de (Oliver Schmidt) - 2022-08-29 10:21 +0000

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