replacement CM11a firmware available

I have made available on

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source for replacement firmware for the CM11a along with a unix daemon that provides my standard tcp/ip interface.

The replacement firmware is in no way compatible with the OEM firmware and also requires certain pins to be rerouted between the PIC and CM11a board.

The firmware provides a low-level interface to the power line. Received bits are grouped 6 at a time and sent to the host. The host transmits by specifying a bit string and a repeat count. All encoding/decoding is done in the host. Normally once the host has seen 7 or more zero bits further zeroes are suppressed, but for full real-time analysis a flag is provided to force all bits to be transferred. An additional flag is available to disable three-phase transmission support and the supplied daemon sets this flag by default.

I've been running this code for a few days but it should of course be considered preliminary. Further documentation will be available depending on the level of interest...

Dan Lanciani ddl@danlan.*com

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Posted 5 years ago by Dan Lanciani in General Home Automation

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Image for replacement CM11a firmware available