I still get notifications from A2central, which I always read even though I was pretty much trying to tune everything else “Apple II related” out (except for shipping Uthernet’s in the pipeline).
If I may digress for a moment … for me it’s kind of like quitting smoking … very hard to go cold turkey but doable … then if you sucum to temptation and think I’ll just have just one or two … boom … your sucked right back into the vortex … (I still am cigarette free after 29 years but okay I’ll admit i have the odd Colt once in a awhile with a beer). I don’t think i’ll ever quite be, 100% over, I’d like to have a smoke feeling .
So now your wondering what’s this got to do with Apple II’s? Read on …
On January 28th 2011, Sean posted a pointer to Robert Justice’s Apple IIc Smartport device posting on CSA2 … that was the thing that pulled me back into the vortex from my self induced “no Apple II tinkering” coma. If you’ve been reading my blog all along or read through my forums you know this a project I wanted to do. I had acquired a Chinook Ct-20c to reverse engineer it but got side tracked onto other projects. I am glad Robert finally figured it out. Way to go Robert!!
Re-creating Roberts project with my XGS AVR 8 development system using a MicroSD card was very straight forward. In fact getting the ascii terminal for debugging output gave me the most grief. Reading worked right way but I had to step the SPI clock down quite a bit in order for the write function to work properly. As it stand now, it works well in a IIc (no pass through support yet) and in a IIc+ works fine for the most part but still has an issue with the internal drive where it cannot be used after the external dirve has been initialized. Haven’t been able to puzzle that one out yet.
So now it’s nice to be back if only part time ..
I spent the last few days reacquainting myself with some of the projects I was working on and look forward to actually completing some of this stuff. I plan on resurrecting the IIcxmp project If anyone out there is still reading this blog and if you have any skills to help me debug this Apple IIc+ bus problem I would love to hear from you.
The IIcmxp is meant to be an internal option that centers around a memory upgrade, mass storage and networking. I had a 1MB SRAM based memory replacement in beta mode, working well in a IIc but still with bus issues in a IIc+. I had a SPI/SDcard interface (based on Daryl Rictors SPI code) in alpha mode reading SDCards. I had also purchased zero G wifi modules but not got the module hooked up or code ported from PIC/AVR land to 6502.
To get my feet wet again I plan step back and get the sub-components working in a regular Apple IIe/IIgs first before i reintegrate them for the IIcmxp.
That’s the basic plan .. I will follow up with three more posts, one for each section, where I see my journey going and what I will be looking at to get from point A to point B for each component.
So if your still following along … stay tuned …