STEVAL 25R200A: How to actively stream tag UID via UART on detection?

[JW1]

Hello,

I am using the ST25R200 evaluation board with the STSW-ST25R020 firmware package.

I am planning to develop a custom Python GUI that displays a specific text string whenever an NFC tag is detected by the board. To achieve this, I want to modify the C firmware so it actively streams out a text string via UART/VCP as soon as a tag enters the field.

Could you please guide me on the following?

1. Which specific source file and function in the STSW-ST25R020 package handle the successful tag detection/inventory loop where the tag's UID is retrieved?
2. Where is the best place to insert a custom printf or logging function to stream this text data out via UART immediately upon detection?

Thank you very much for your help!