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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Timeline

I’ve put together a time line of events starting from November 2004, the initial idea.

CLICK THE ABOVE IMAGE FOR A FULL SIZE VERSION.

Logicport screenshots and project file

I thought this might be neat to put up. Sorry about the high-res image but you lose too much when it compresses it. Click here for the screenshot. Also, I uploaded the .LPF project file which can be viewed for free with...

followup on speed of inpout32

Welp, did some testing last night, and no, it doesn’t look like inpout32 is really going to be any faster. Damn shame because it was relatively easy to setup and use. Quick reply from the authors(thank you) who...

SX software progress

Welp, since I fine tuned the PC to very reasonable numbers, I figure a small overhaul of the SX code is in order too. I had somewhat of an epiphany working the on the SX, which I haven’t *really* looked at in...

Changes to the PC side

With more and more things pointing to the PC, I’ve decided to really reduce the amount of work the PC has to do in its receive loop. I looked at Marco’s because his was designed to run (albeit in dos/dos...

progress on windows side

I put some time into the windows program that makes this whole thing tick tonight.  When I first started this project, I started with Marco’s afr.c, and pared it down to the bare necessities.  Then, I modified...

PC xfer working now, timing in order

Welp I pretty much solved the big problems I encountered over the past couple weeks. Ground issues — turned out I was attaching ground of one interface to Vdd on another interface. That was solved by actually...

cleaned up the project

So after banging my head for awhile, things still aren’t working as they had prior to my stepping away from it. What I did last night was to partially dissassemble everything, and rewire a decent portion of it. ...

migrated website to a new host

Over the last week, I migrated this blog to a new hosting provider. GoDaddy was such a pig and the site just ran like molasses when hosted by them. I couldn’t be happier with the switch that I’ve made, but I...

adding more commands

Now that I *think* I’ve got a handle on the reading portion, I’ve been adding a couple more commands. I added support so that the SX knows what cylinder number it is on.  The F and B commands increase and...