Welcome to Vanessa's Projects page


Last Update: 25 March 2009 GoDaddy.com

Welcome to my Projects Page On this page you will find various hardware projects. All projects on this page are released to the public doman. See also, my C128 Tower page for the big project I'm constantly tinkering with.
PowerSID
	Many years ago I designed a board I called PowerSID, but I never got to import that design into a CAD program so I could make a prototype. At left, a screenshot of the one-board version of the project, which carries up to 8 SID chips, plus four 8-bit DACs (in one chip). Sorry, the schematic for this board has been lost, however here are the actual board files (board version 0.2.1, UNTESTED): Documentation (Unix/ASCII text) PCB native format Gerber format (ZIP)
Scan Doubler
	It seems like everyone has been wanting a scan converter/doubler board to let a C128 connect to a VGA monitor. So I decided that, since the C128's video output is digital TTL-level RGBI, I shouldn't need a RAMDAC and the like, just some SRAM, a couple of counters, and something to sum the final TTL RGBI into 0.7v analog VGA-compatible signals. At left, version 0.2.3 of that circuit (fixed a major error in v0.2.1). This circuit does not handle 40 column video, just 80 column mode, but there are plenty of devices out there that should handle 40 columns (any high-quality NTSC -> VGA adapter should work). Sorry, no board layout has been created for this schematic yet, but if you click on the image, you can see the full schematic.
QuickScan
	Years ago I devised a simple device to connect a black and white parallel Connectix Quickcam to the C64's User Port. At left, the schematic (flat image only - v0.1.3, identical to WORKING prototype)
	At left, the revised board layout, electrically identical to the prototype. Board layout data: PCB native format Gerber format (ZIP) Program files for the C64 side: Program/Source (ZIP)
	At left, you can see a sample image captured using the prototype interface and a monochrome Quickcam. Pictured of course is a C64, with a hard disk sitting on top, David Wood's UHS prototype next to it, and under the hard disk, you can see one of the connectors attached to the very prototype used to acquire this image. This image was copied from David's website (and here I thought these samples had been lost).