So if downloading of firmware to an ESP32 can be accomplished through the JTAG pins, why does the ESP-PROG programmer/debugger have a standalone programming umbilical cord devoted to programming through the TxD0 and RxD0 pins? Are you saying that another, non-ESP-PROG, non-Espressif tool plus driver...

My thanks for an extremely helpful users forum, and the completeness of Espressif's fine application tutorials. However, the tutorial for the ESP-PROG programming/debug tool is ambiguous about one thing: if my target design monopolizes the ESP32's TXD0 and RXD0 pins, can I program the device using t...