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The UKHA-ARCHIVE IS CEASING OPERATIONS 31 DEC 2024


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RE: RS485


  • To: ukha_d@xxxxxxx
  • Subject: RE: RS485
  • From: andy.powell@xxxxxxx
  • Date: Wed, 12 Apr 2000 10:58:31 +0100
  • Delivered-to: rich@xxxxxxx
  • Delivered-to: mailing list ukha_d@xxxxxxx
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

>I *think* it does do hardware handshaking. If I send data to the PC
when
>asleep, and then manually wake it up, the commands are executed after
it
>wakes up. The question in my mind is that if I do link RTS with RI,
would
it
>affect normal operation? I remember when I first started working for an
ICL
>trader selling Unix boxes spending several hours with a soldering iron
and a
>breakout box tyring to get serial cables to work!

Actually what the CM12U does is send a poll signal (0x5a) when it receives
an X10 command until you (the application)
respond with a 0xC3. This is why ActiveHome will carry out the required
when you manually wake up your PC. It
simply gets the poll signal from the CM12U/CM11U telling it that there is
data in the buffer.

Hope this helps..


Andy



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