Why no Metering application under SDKv2.14 whereas found in SDKv2.10 for TWR-KM35Z75M?

[GanesanGuru]

Hi all,

I'm trying to understand the metering applicaiton w.r.t KM35Z75M MCU. I've downloaded the corresponding SDK_2_14_0_TWR-KM35Z75M for board TWR-KM35Z75M, which has Metering as middleware - which has meteing library with Filter/FFT based algorithm's archieve (.a) files and its corresponding header (.h) files. 

But unlike a simple LED example, I can't find any built in example project for metering - filter/FFT -1/3Phase, while trying to import example from the downloaded SDK_2_14_0_TWR-KM35Z75M. Why is that so?

While, when I've build using SDK Version 2.10.0 instead of latest 2.14.0, there are metering applications under demo_apps. While in latest v2.14 its not. How to rectify those?! Else how to manually create metering application from scratch in latest version-2.14

If possible, can share any docs in importing metering algo into new project would be appreciated, w.r.t VS code with MCUXpresso extensions or with MCUXpresso IDE alone.

PS : We are not looking for IAR toolchain, as explained in Applicaiton Notes Software/Design Referene Modules for KM35

[RaRo · Accepted solution]

Hello @GanesanGuru,

Could you please try downloading again the SDK v2.14.0? You could download it from the MCUXpresso IDE or from Welcome | MCUXpresso SDK Builder. If you are going to download it from the SDK Builder, please make sure you have Metering Library check before click on Download SDK, as follows:

[MCUXpresso SDK Builder -> Build SDK]

Using MCUXpresso IDE v11.8.0 and TWR-KM35Z75M SDK v2.14.0 we got the following examples under demo_apps:

[MCUXpresso IDE v11.8.0 -> SDK Import Wizard]

Also, we share you some application notes that could be useful to Metering applications:

• Using the FFT on Sigma-Delta ADCs and,
• FFT-Based Algorithm for Metering Applications.

Kind regards, Raul.

[GanesanGuru]

Hi @RaRo,

That's really appreciative @RaRo . I can replicate the same now.

What keeps me wondering is, I've preferred VSCode's Extension previously and for the same I was not able to do it,as illustrated in attachment. Why is it so?

[RaRo]

Hello @GanesanGuru ,

Great discovery! After comparing the newest SDK with the v2.13.0 (the older one), it seems the newest SDK is missing the folder armgcc in the metering examples. The armgcc contains the CMake build files which are essential to import the metering examples.

If you want to use VSCode's MCUXpresso Extension instead of MCUXpresso IDE, please use the SDK v2.13.0 which would let you import the metering examples.

[Import Example from Repository with SDK v2.13.0]

At the meantime, we are going to let the team in charge to know about this. Thank you for noticing this issue.

Best regards, Raul.