techtravels.org

inital results on error correction

While I have yet to actually implement the full-scale error correction as I want to, I did some manual tests today. I basically took a track that I was erroring out on, and swapped in 1-bit away values for the bad bytes.  In some cases, it appeared...

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Anatomy of a flux transition

I wanted to put up an image that displays an actual flux transition pulse coming off an amiga floppy disk whose data was encoded in MFM.

CLICK ON THE IMAGE TO DISPLAY A FULL RES VERSION.

added byte-sync to my transfer routine

Well, after much thought, pondering, and discussion with David, I finally implemented a working byte-sync routine to my SX software. I don’t have it fully working with the PC side software yet, because this...

PCBs have arrived!

Just in time for Christmas, the PCBs have arrived from China.  I used Seeed Studio (Fusion PCB Service) and they look pretty good.  Here’s the first look at them. I’m just about to solder one up, so wish me...

LCD Test image and pixel-level detail

So I’ve managed to get a semi-working test pattern image up on the LCD. Here are a couple shots: If we zoom in about 10 times, we can see how the LCD really works, on an individual pixel level: Pretty challenging...

thinking about cross-platform support

To make this accessible to everyone, I’d really like to add support for more than just Windows.  I thought that Java would be my ticket to freedom here, but that is turning sour real fast. From what I’m able...

SX code

Ok so I’m using SX/B, which is BASIC for the SX. Even if you’ve never touched SX/B, it reads very easily, anyone who knows the PIC or other mcu should understand….. Here’s the logic behind the...

Yay! Initial shots from the VSC!

So I got everything hooked up tonight, and the good news is that I have definitely made some progress! It appears to work, although the video is currently scrolling with multiple video problems, but I definitely have...