help with x10 protocol

There's no documentation with it but...

is a small application that displays all the bytes sent and received. The bytes are shown in [brackets] and are color coded, with blue being the bytes sent and red being those received. Gray indicates a system message or, when it follows a transmitted packet, the checksum to expect from the CM11A. You can also log the bytes to a text file.

Here's a log of A1, A ON.

05/03/05 7:14:09 AM > [04 66] 05/03/05 7:14:09 AM < [6A] 05/03/05 7:14:09 AM > [00] 05/03/05 7:14:10 AM < [55] 05/03/05 7:14:10 AM > [0E 62] 05/03/05 7:14:10 AM < [70] 05/03/05 7:14:10 AM > [00] 05/03/05 7:14:10 AM < [55]

I assume you have the X-10 documentati>Hi

Just in case you are using a Linux machine, this is the list of some free software resources that allow you to control a CM11:

- x10dev

- x10_heyu

Google using this two names and you will find the packages.

I have successfully used the fisrt one and I remember that in debug mode you can get lots of information during X-10 transactions.

I hope this helps. Best regards

Hex bytes when sending A1 ON: Host = PC, Device = CM11A

Host --> 04 66 (Send address A1) Device --> 6a (Receive checksum of 04 and 66) Host --> 00 (OK, send it out on the power line) Device --> 55 (CM11A ready for next command) Host --> 06 62 (Send function A ON) Device --> 68 (Receive checksum of 06 and 62) Host --> 00 (OK, send it out on the power line) Device --> 55 (CM11A ready for next command)

Regards, Charles Sullivan

Forgot to mention: When you first power up the CM11A, it will continue to poll for a time update by sending the 0xA5 character to the PC once every second, and will accept no normal commands until it gets a response. You can stop this polling by sending a 0x9B character, whereupon the CM11A will start to accept normal commands. (See the protocol document if you actually need to set the clock in the CM11A.)

Regards, Charles Sullivan