by Steve Anderson » Mon Mar 21, 2011 8:46 pm
Hey Karen,
Seems you've beaten me to it! I was wondering if you were going to do a complement to the NBTV-625 device. My version, currently very incomplete, is also a 'One-PIC-wonder' but it does use another five small chips as support. As I mentioned elsewhere on this forum and in the newsletter, this number might grow but I'm hoping not.
Progress on this 625-NBTV converter has come to a standstill for the past two weeks. I reached a point where I had an output from the converter and could view it on a scope, but I had no operational NBTV display. So I've had to build yet another! Since this forum started I perhaps have built five, I'm not sure, but once they get operational, documented, photographed and maybe published here or in the newsletter...they're doomed! No mercy.
If they see one hour of operational life I would be surprised. Their innards are plundered for parts, circuit boards consigned to the trash...and they don't even carry Donor Cards.
This display, I vow, will not be dismembered. It will be kept whole. This is not the first time I've been caught out lacking this rather essential piece of gear.
Back to the converter...
All being well the monitor should be good to go in a couple of days, this will allow viewing of 'whatever' it's output might be. It currently is not much more than a glorified test-card generator, reading its own RAM in the 'reverse-rotated' manner that the scan directions require.
The input filtering and clamping is done, all I've yet to do is marry up the sampling/writing to the reading/output...ONLY he says!
I may have some screen-shots by the weekend, then again, I may not.
Good video, mechanical display? It's a little hard to tell.
Steve A.
P.S. You've just answered my question...