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RE: HV RX UPDATE


  • To: <ukha_d@xxxxxxx>
  • Subject: RE: HV RX UPDATE
  • From: "Ian B" <Ian@xxxxxxx>
  • Date: Sun, 30 Jun 2002 12:35:27 +0100
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

Hi Frank
 
This problem with very short lived events and HV doing something else was why I built the signal extender for my beam breaks.
 
As for your IR receive question when HV is sending X10 etc. I don't know the answer. That one would be best posted on the HomeVision list.
 
I like the PIC idea and handshaking. It will be interesting to see how well that works.
 
Keep at it. I have yet to build something that works as I intended it first time.
 
Ian B
-----Original Message-----
From: Frank Mc Alinden [mailto:armagh@xxxxxxx]
Sent: 30 June 2002 05:40
To: ukha_d@xxxxxxxSubject: [ukha_d] HV RX UPDATE

Hi All
        Well my hv ir reciever progress was short lived. I cant get hv to correctly recognise which rx is active. When a (stored) ir signal is recieved Homevision scans the ir active mux and should detect the active rx. I tried all sorts but no luck . I also think now the design is flawed as the ir active signal is only present for approx 1 second ,if hv is busy the active signal may be gone when hv does get round to scanning the rx mux...
    What happens when hv recieves an ir signal while say transmitting an X10 signal? Does the ir signal not get detected?
 
Im now thinking of using  a Pic to detect which rx is active and using 3 i/o pins as outputs to identify the active rx . Homevision when ready reads the status of  its 3 inputs (connected to ir rx outputs) and determines which rx is active then pulses a hv output to ACKnoweldge(connected to a Pic input pin)  that it has decoded the Pics mux outputs . So 4 i/0 pins would be required on hv....
 
I was also thinking of adding an RS232 port to the Pic so that ir active data could be sent say to a pc. Can the Girder Software talk to more than one serial port?
 
Any comments/ideas
 
Frank Mc

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