Re: ADE7816 change of direction interrupt timing

The gain settings for this channel are:

Vgain:      0x12f8bb

Igain:       0x5396a

Wgain:     0xd7fc75  (or 0xfd7fc75 sign extended to 32-bits)

which I think works out at:

Vgain:    x 1.148

Igain:     x 1.04

Wgain:   x 0.687

For an overall gain of x 0.821.

So if my PMAX with no gain is 6266W, then if you take the gain into consideration, PMAX is actually 7632W (since between them the gain registers are scaling the inputs down by 0.821).   So with a reverse load of 2140W I'd expect the accumulator to be tipping into the WATTHR register at 8000*2140/7632 Hz, i.e. 2243 Hz or every 446 usecs.