DOS ain't dead

controlling GPIOs from DOS (Announce)

posted by RayeR , CZ, 06.12.2013, 03:17

> I would prefer if it took less time, for example 0.1us. But I don't know much
> about efficient low-level access.

Even if you could reach average 0,1us acces you will run into other toubles with running SMI BIOS routines (cannot disable them all) that could delay your I/O cycle to several us - in a random manner. Simply PC is not designed to do such fast realtime controlling / unbuffered sampling. You should use some fast MCU (ARM, etc.) that is fully under your control that will be controlled by master PC.

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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