Graynomad:
With no SS there is no way to sync with the master unless you can detect the inter-frame idle.
Yeah, thought so :-/
If it's any help Byte 2 and 13 is always 0x00, i could technically sync to that, but i'm not entirely sure that those will remain 0x00 for all time and eternity...
So the smart way would be to connect SCL to an interrupt pin beside the SCL pin, then start a timer, if the timer can run for, say 15 ms without interruption, then jump to capture section and capture the bytes and throw into respective bytes.
Maybe that is the way to go.
I will have to think up a way to do it - after all it should be doable.
// Per.