DOS ain't dead

controlling GPIOs from DOS (Announce)

posted by RayeR , CZ, 06.12.2013, 03:09

> The first parallel ports IBM came out with were bidirectional, and then
> they made them unidirectional (they were a little cheaper to make that
> way), and then with the PS2's they made them bidirectional again (and they
> weren't even EPP or ECP, they were just bidirectional). You don't actually
> need EPP or ECP to have a bidirectional port.

OK, you're right, there were also simple bidirectional ports.

> They claim parallel ports can reach speed of 12~16 Mbps, so

Really theoretical. Just try to toggle some bit as fast you can and measure if it really toggles. I never seen something far beyond 1Mb/s (maybe some industrial version is exception).

---
DOS gives me freedom to unlimited HW access.

Complete thread:

• controlling GPIOs from DOS - Damien, 03.12.2013, 22:54 (Announce)
  • controlling GPIOs from DOS - RayeR, 04.12.2013, 01:08
    • controlling GPIOs from DOS - Damien, 04.12.2013, 21:27
      • controlling GPIOs from DOS - RayeR, 05.12.2013, 01:07
  • controlling GPIOs from DOS - bretjohn, 04.12.2013, 17:26
    • controlling GPIOs from DOS - Damien, 04.12.2013, 21:38
      • controlling GPIOs from DOS - bretjohn, 05.12.2013, 03:18
        • controlling GPIOs from DOS - RayeR, 05.12.2013, 10:59
          • controlling GPIOs from DOS - bretjohn, 05.12.2013, 16:28
            • controlling GPIOs from DOS - RayeR, 06.12.2013, 03:09
              • controlling GPIOs from DOS - Zyzzle, 06.12.2013, 07:57
          • controlling GPIOs from DOS - Damien, 05.12.2013, 19:45
        • controlling GPIOs from DOS - Damien, 05.12.2013, 19:55
          • controlling GPIOs from DOS - RayeR, 06.12.2013, 03:17
            • controlling GPIOs from DOS - Damien, 07.12.2013, 00:39
              • controlling GPIOs from DOS - RayeR, 08.12.2013, 03:01
          • controlling GPIOs from DOS - bretjohn, 09.12.2013, 05:15