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ADE7878A: integrator initialization

Question asked by apenasa on Apr 21, 2015
Latest reply on May 1, 2015 by dlath

Good afternoon everybody,

we are developing a e-meter for Rogowski Coils, I need help about the initialization of the integrator in the ADE7878A SoC.

It seems that the integrator doesn't turn on, and I not understand what is the problem. Here the current and voltage samples downloaded by HSDC, the current lags the voltage of 90°:

ADE7878A - DOWNLOAD FROM HSDC.png

 

Here the initialization steps:

     

STEPREGISTERR/WASSIGNED VALUE Note
1---delay 200msec
2---HW RESET
3---delay 200msec
4----
50xE7FEw0xADDisabel RAM protection
60xE7E3w0x00
7RUNw0x00Spengo il DSP
8RUNr-Check if the DSP is turned-off
9STATUS0w0XFFFFFFFFConfigure and reset the interrupts
10MASK0w0x20000DATAREADY interrupt enable on IRQ0 (I do not need it)
11CONFIG2w0x2Lock I2C and set no external voltage ref
12GAINw0x0PGAs SETTINGS = 1
13APHCALw0x0No phase compensation
BPHCALw0x0
CPHCALw0x0
14DICOEFFw0xFFF8000DICOEFF setting before the activation of the integrator
15CONFIGw0x1Turn-on the integrator
16CONFIGr-Check if the Integrator is turned-on: OK

 

Thanks!

Alberto

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