How can I enable the secondary antenna (ANT2) on the ESP32-C5-WROOM-1U module, and what firmware/hardware changes are re

[vinhquang22]

I am using the ESP32-C5-WROOM-1U module in a custom PCB design. The module has two antenna ports (ANT1 and ANT2). By default, the firmware seems to be using ANT1.
I would like to enable ANT2 as the active antenna (or switch between ANT1 and ANT2) to test wireless performance.
Based on the available knowledge sources, the ESP32-C5-WROOM-1U module is designed to use ANT1 by default, and ANT2 is disabled. The datasheet and official documentation state:
"ESP32-C5-WROOM-1U uses ANT1 by default. To use ANT2, please contact us."
"Modules of ESP32-C5 series (such as ESP32-C5-WROOM-1) provide only a single antenna interface, so there is no antenna switching physically speaking. In this case, the same antenna is used for both frequency bands (2.4GHz and 5GHz), with software controlling the switching through time-division multiplexing. Users cannot manually switch antennas via GPIO."