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Voltage and Current RMS value register stuck sometime?

Question asked by mahesh.nijai@gmail.com on Oct 15, 2016
Latest reply on Oct 18, 2016 by nchandra

Voltage and Current RMS value register stuck sometime?

Hi All,

I am working on aproject which have ADE7780.
I follow recommended power up sequence and DSP run sequence prerequisites.
Also configure SPI communication successfully.
SPI communication is verified by read/write operations on 8, 16 and 32-bit register with 100% accuracy.
I read following registers, after DSP run
AIRMS, BIRMS, CIRMS, AVRMS, BVRMS, CVRMS

However I found a strange behaviour-
Each new power on sometimes all registers show values OK.
However some time after power on one of the regsiter behaves
like it gets stuck, it shows value 0 or 1 on particular register
while other register shows valid values at the same time.

Please guide me what could be the reason?

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