[sdiy] how you got started with your current µC?

[MTG]

My experience was similar. Building an Apple ][ clone using a purchased 
blank PCB. Everyone was doing it back then. I put it in some crazy cash 
register like box with a huge power supply and non-standard keyboard but 
it worked!  I wish I had a photo of it.

Sold it for $1k when I got into an IBM PC AT clone.

On 9/21/2015 10:41 AM, Tim Ressel wrote:
> An Apple II clone?!  Yikes. First time I heard of one.  Yeah, I think
> you beat my story, in scope if nothing else.
>
> I wonder how much $$$ Wozniak would give you for it?
>
> --tr
>
>
> On 9/20/2015 9:33 PM, rsdio at audiobanshee.com wrote:
>> On Sep 20, 2015, at 1:54 PM, Tim Ressel <timr at circuitabbey.com> wrote:
>>> My first proc was a COSMAC 1802, on a breadboard, with manual entry
>>> switches, powered off a car battery, in a horse barn. (beat that!)
>>>
>>> The 6809 came at my first engineering tech position. It was a
>>> hand-wired proto board. Then 68000 and 68020, then Atmel AVR.
>>> Recently DSPIC and STM32. These were all pre-made boards.
>> Tim,
>>
>> I might not be able to beat that, but here goes: My first processor
>> was the 6502, on a PCB that my uncle and his engineering compatriots
>> had manufactured as a non-commercial Apple II clone. Since all of the
>> chips in the Apple were off-the-shelf until the Apple //c and Apple
>> //e, these guys just did their own layout from the schematic that
>> Apple provided at the time, and socketed everything. That computer,
>> built by hand in the early eighties, is still running today (I use it
>> to burn vintage EPROMs). It had 4 separate power supplies for the
>> +/-5V and +/-12V. The case and keyboard were separate, from surplus
>> sources, and most "interface" cables were soldered to avoid failure of
>> connectors.
>>
>> Before that, my uncle hand-wire-wrapped an entire Apple II on huge
>> breadboards, but it only lasted a few years. The PCB was an attempt to
>> make something that would last longer than wire-wrapping.
>>
>> Brian
>>
>> p.s. As folks may know, the Apple II system ROM had a disassembler, a
>> line-oriented assembler, and even the ability to step through live
>> code one assembly instruction at a time with display of the register
>> changes after each. Great way to learn, and you didn't even need to
>> buy an "emulator" and figure out how to wire it up.
>>
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>