I working on the ADE7880 Evaluation board. In this board i need to read the harmonic registers which registers mentioned in datasheet those we need to read for that some registers i did the enabled
1.CONFIG register set to 0x0004
2. STATUS0 register set to 0x00080000
3. harmonic registers like HX ,HY and HZ is set to 0x03,0x05,0x07 respectively.
4. HCONFIG register set to 0x0009 for phase A.
5.GAIN register set to 0x0000.
based on the datasheet pgno:66 -> Recommended Approach to Managing Harmonic Calculations
After that when I am reading the HXVRMS,HYVRMS and HZVRMS I am getting the raw value is 29914,38280 and 33496 like this getting data.
and VTHD and ITHD also i am reading then i am getting the data is 80182, With out giving load getting data is 8388607.
I am using for measurement RISH MASTER 3430 here i am getting data VTHD,ITHD is 23.97 and i am giving the load is 100watt bulb then i am getting the data is 2.98
I think some where i did mistake. If anyone knows please let me know.