Is calibration needed for STM32F769I-Discovery Touch Panel?

[Mat1]

I'was looking how to calibrate the touch panel. I'm using actualy the STM32F769I-Discovery.

In the user manual 'STM32CubeF7 demonstration platform' UM1906 there was touch screen calibration mentioned, but I didn't find more information until yet.

Is calibration still needed for capacitive touchs or is this a relict from resistive touchs?

If calibration is needed: 

• When is the touch screen calibration recommended (during production, from the user)?
• How is the touch screen calibration done (are there any documentation from ST)?

[Peter BENSCH]

The calibration was in fact carried out on resistive touchscreens because of their inconsistent resistance; with capacitive touchscreens this is normally no longer required.

Does it answer your question?

Regards

/Peter

[Mat1]

@Peter BENSCH​ Yes this answer my question. Thanky you.