> A DVI-to-analog adapter is normally a cable. Good quality ones are > available off the shelf. I haven't seen any that included a board or a box. > However, if you're satisfied that an adapter can be made that splits > off the DDC signals without affecting the video signals, then we can say > that a solution exists in principle.
Are DVI connectors available with solder cups and a screw-together cover? Similar to those available for DB-25, DB-9, HD-15. Or do you need some specialized $500 crimp tool? We can test a prototype using the easy to find and doubtlessly less expensive HD-15 connector and some existing brand-x graphics port. > I imagine the hardware handshake is complex enough to be most > easily implemented with a microcontroller and on-board firmware. The first question is what do monitors have? Some small chip that just does the DDC? Problem is it might be one-time programmable, and/or require a specialized burner machine. And is likely to be surface mount. Has anyone come up with a good prototyping board for surface mount chips, like the very handy ones for DIP packages? > More than > one user interface is possible. Probably the most universal solution would > be to put in both the RS-232 port and the DIP switches; that way only one > board would have to be laid out to satisfy different sorts of users. > It occurs to me that if the tool is built with through-hole DIP ICs and > switches, it can be assembled with ordinary home-shop tools, and sold as a > kit. If you're thinking of making a PCB, devices could be surface mount, *IF* the pins are spaced widely enough. The real problem isn't surface mount vs through hole, it is the size. For de-soldering, surface mount is actually easier than through-hole. The biggest problem soldering is finding a small enough tip for your soldering iron. You also want skinny solder and a good magnifying glass, but those are easy to find. But for a prototype, those solderless breadboards for DIPs are very nice. > One question: can it get its power from the OGC1, if the display > doesn't send any power up the cable? According to others on the list, it is supposed to work with the display turned off. We'd need to find a spec for the Voltage and for how much current draw is allowed. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
