X10 Community Forum

💬General Category => General Discussion => Topic started by: scariba on November 01, 2011, 06:07:09 PM

Title: Help first attempt at programming for X10 CM11A
Post by: scariba on November 01, 2011, 06:07:09 PM

Hi,
I have a CM11A serial, connected to Win 7 via USB to serial connector.

Using the ActiveHome software everything functions as it should.

I'am writing my own software to communicate to the CM11A, however I have encountered a problem with the checksum return from the controller.

I send via the serial port; PC > 0x04 0x66

And should expect a checksum as 0x6a as documented elsewhere.

However I receive back the checksum 0x60 everytime, even after several writes to the com port.

Any pointers/thoughts would be most greatfully received.

Many Thanks

Title: Re: Help first attempt at programming for X10 CM11A
Post by: Brian H on November 02, 2011, 06:54:32 AM

Did you set the clock first.
I understand it will just send set my time requests until it is satisfied.

Title: Re: Help first attempt at programming for X10 CM11A
Post by: scariba on November 02, 2011, 09:05:16 AM

Hi,

Yes, the clock was set by the Activehome software and the CM11 was no longer polling for this info.