An alert commenter pointed out that I hadn’t tried the RC termination type. I tried it and you won’t believe what happened!
Смотреть в источнике
An alert commenter pointed out that I hadn’t tried the RC termination type. I tried it and you won’t believe what happened!
Смотреть в источнике
4 комментария
loving this project!! by the way, it looks like your outro got messed up somehow so that it jumps through at very high framerate to the point where it says "and I can't sing". It might not matter, but if you care, now you know.
Love this project. Looking forward to seeing it in operation.
Why can't you send out a paired signal, one which is as you have here, and the other explicitly crafted to compensate for the peculiarities of other wave, so you can send slightly offsetting voltages to add to the mix so the square wave can be crafted into a true square wave?
You might still have the power problem: the load is still 50 Ohm, even if for high frequency components only. But you're toggling at 20 MHz… After connecting lots of cards it will be worse.
Have you measured the power consumption? What about when two strips connected (to buffer's separate outputs)?
That "megabus" thing looks more and more problematic. Maybe it's a good time to rethink the architecture a little bit. Like, for example, split those 32 registers into groups, with 4 (8?) registers per. And hide each group behind a buffer.