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Posted Sun Jun 20, 2010 9:06 AM
Posted Mon Jun 21, 2010 1:54 PM
Posted Mon Jun 21, 2010 2:26 PM
Posted Mon Jun 21, 2010 4:00 PM
Okay, here's how I spent my weekend:
This is my WIP cartridge board layout, which includes only the bankswitched ROM functionality. At this point, there doesn't seem to be enough room on the board to include the RAM and its supporting logic along with all the logic required for the ROM. There's a lot more work I want to do with this, so I might find a way to squeeze it in, but it's starting to look like I might need a separate board for the RAM expansion. That one will be a whole lot easier to design.
Edited by the-topdog, Mon Jun 21, 2010 4:00 PM.
Posted Mon Jun 21, 2010 9:24 PM
Posted Mon Jun 21, 2010 9:40 PM
Posted Tue Jun 22, 2010 12:03 AM
I don't know where I'll be getting them made yet; I need to get some prototypes manufactured and tested, and then I need to shop around to compare prices for a larger production run. I want to get these boards made with the highest-quality workmanship that I can afford: nice solder mask and silkscreen, gold-plated fingers and jumper pads, a beveled edge connector, etc. Even with all that, they shouldn't be more than a few dollars per board if I have them made in bulk.
where are you going to get the boards made?
estimated cost per board including eprom?
Posted Thu Jul 1, 2010 9:16 AM
Posted Fri Jul 2, 2010 12:26 AM
Well, about two weeks and four revisions later, I finally have a board design that I'm happy with:
I sent this off for prototyping this morning, so if all goes well, I'll soon be receiving the first new Aquarius cartridge boards to be produced in over twenty-five years. Of course, the first boards are usually somewhat different from the final boards (depending on how the prototypes turn out, I might have to make changes in the circuitry, or the dimensions/layout of the board, or both), but at least this phase of the project is complete.
Now, I'll be turning my attention to the software while I wait for the boards to come in ...
Posted Sat Jul 3, 2010 3:49 PM
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Posted Wed Aug 18, 2010 4:38 PM
Posted Wed Aug 18, 2010 6:56 PM
Thanks! I'm glad to know that people are still following the project.
Thanks for the update, everything is looking good! I only get on here maybe once I week now but its once of the first things I look up
Posted Wed Aug 18, 2010 11:48 PM
Posted Mon Sep 13, 2010 7:57 AM
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