| Main > Main Forum |
| Buddabing's LED controller |
| << < (65/69) > >> |
| gl.tter:
--- Quote from: SirPoonga on June 15, 2005, 06:03:29 pm ---hmm, I might wait for all this to play out befor eI go on with my qbert knocker. --- End quote --- |
| SirPoonga:
--- Quote from: gl.tter on June 15, 2005, 06:07:59 pm --- --- Quote from: SirPoonga on June 15, 2005, 06:03:29 pm ---hmm, I might wait for all this to play out befor eI go on with my qbert knocker. Though doing hte serial route I plan will be simple and cheap, will do it just for the sake of doing it :) --- End quote --- There are some DLLs out there that make parallel port access transparent on any Windows OS - you could easily write a tiny light driver that just looks for the knocker signal, and sets a pport pin. I've written a light driver skeleton that makes this very easy - let me know if you want the code and binary to test with. --- End quote --- I know, but the reason they aren't transparent in NT based OSes is because it introduces security holes. And there are ways to access the port in both 98 and NT worlds, just a pain to do :) Like I said in the qbert thread, not going parallel port since legacy ports are moving out and serial to usb convertors are cheaper than parallel to usb convertors, so in the future when my arcade computer doesn't have legacy ports it can still work. I just realized the LED board is parallel porT? argh. I guess I am not getting that. Parallel port does not fit in my future plans. Especially since the mobo I am looking at only has USB and Firewire. |
| gl.tter:
--- Quote from: SirPoonga on June 15, 2005, 06:22:58 pm ---I know, but the reason they aren't transparent in NT based OSes is because it introduces security holes. --- End quote --- |
| Buddabing:
If you run Daphne, you are already running one of the DLLs which open up the parallel port. :) After much experimentation, I decided to use the same DLL that Daphne uses. Why re-invent the wheel? Plus, Daphne includes the source code. Sirp you must be looking at a small form factor box. Every motherboard I've looked at in recent memory has a parallel port on it. I'm using the parallel port for ease of design, ease of programming, and low cost. If you want a USB controller, get Randy's. He hasn't said so, but I would be willing to bet that he will make his controller work with gl.tter's LSE code. |
| posicat:
Any news on the prototype boards? I'm anxious to see how they turn out. Some questions: I read up on the controller chip, and I2C bus communication. I now have some projects of my own in mind. Will these boards have an exposed I2C connection where other boards will be able to be attached? Could these plug directly into the SMBus on a motherboard, instead of using the paralell connection? |
| Navigation |
| Message Index |
| Next page |
| Previous page |