I bought a esp32 board with other components which I have been looking for. Unfortunately there is no chip to link the USB data input to the esp32. I am using a USB to serial unit (FTDI) and following the instructions on the Expressif Flash Download Tool User Guide

The com port is recognised ok ...

I am trying to use the flash download tool for sn esp32. When I examine the bin file it is empty. What am I doing wrong