Other Parts Discussed in Thread: MSP430F6779A
Hello,
I am prototyping a product that includes the MSP430F6779A. I had bought the evaluation kit that includes this MCU with a "3 Phase Electronic Watt-Hour EVM for Metering".
I implemented a very similar circuit to our schematic and I am trying to emulate the functionality of the kit.
The problem I have is I do not know how to calibrate it, because I did not do it in the evaluation kit (The evaluation kit has factory values). When I try to calibrate it, the calibration factors goes to "0", and stops detecting anything.
Image after trying to calibrate it manually via "Manual cal." button
In the pdf guide www.ti.com.cn/.../slaa577g.pdf , explains we need a voltage and current generator:
For prototyping purposes, for now I am just trying to calibrate it approximately to the previously factory values. But there are two questions that we would like ask:
- How can I do the calibration of one of the current meter phases?
- Is it possible to obtain a file with the factory values? Although the values won't be precise to my application, but at least I will watch some values (other than 0 or 600).
Thanks for your help.
