1-Wire eeprom read/write/etc

The new eeprom framework should make it pretty easy to add support for DS2431 1-wire eeproms, which I have here on a breadboard.

There is another variant, DS2433, a 4 k version. It is significantly different from the 31 that is need a sample to develop against. This part is obsolete though, so I guess we ignore it for now.

Eta: ah there is a DS24B33! I’ll grab one.

Microchip also has a UNI/IO single wire eeprom, but it seems to use a Manchester encoding like thing. It looks doable, but I’ve never heard of anyone using them.

Looks good! trying to figure out if it’s worth dealing with the write protection bits.

Analyzing but not manipulating the write protection control blocks.

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1-Wire EEPROM command is now in the main firmware and documentation.

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