Problem in ADC PART in ade7754.....Please Help...

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tkvenki

New Member
Hi Everybody,

I'am doing a project on ade7754.

I gave a ac signal of 12VAC to the voltage input(Phase A) of the ade7754 evaluation board.

I read the register corresponding to A phase voltage.(RMS)...and i got some value...(eval board is not caliberated...So values are irrelevent)...Then i removed the voltage(12VAC) from the input terminals....

Now i read the same register..But it is giving a erraneous value(It must be zero)...We checked the voltage through the multimeter ...it was "0".

So is the problem due to
1) Reference voltage? or
2)Just because of calibration(WE have not done any calibration)

We have not done the calibration as we atre waiting for our test kit.

THanking you
Venkatesh T.K
India
 
Hi tkvenki,,, I´m from Argentina, I´m 24. I´m member of the project Satellite Pehuensat that was on PSLV(ISRO), In frebruary
I started with a project use ADE7754.
I know if you can send me a idea or a part of code c that you have been working
(my english is not very good as you see ).
I´m greatfull with you,,,...
 
How far away from zero was it?
Are you sure that you are reading valid data from the SPI port and not garbage?
 
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