PlatformIO core: 4.3.4, Home 3.2.3
Target board D1 mini ESP32 (board = wemos_d1_mini32)
Debugger: Expressif ESP-PROG
Development computer: Window 10

I got JTAG debugging to work fine. I used Zadig to set Interface 0 to the recommended WinUSB (v6xxxxx) driver with no problem. After that JTAG debugging worked! My problem is somehow I clobbered the Interface 1 driver and my serial port doesn’t work now. Any suggestions on how I can reset my Interface 1 driver back to the serial port? It seems there is no simple way to set it back. File Name: dual-rs232-hs.exe Version: 2.4.8 Driver Date: 22 June 2019 File Size: 10,971 KB.

Initially when I plugged the debugger into a usb port my pc would make a sound and it would show up in the Device Manager as a COM port. I was successfully able to debug a blink sketch. I had not connected the tx and rx wires so I was using a second usb plugged into my D1-mini-ESP32.

Then I did some more work on my project and then when I plugged the debugger in it didn’t show up in the Device Manager as a COM Port. I’m not sure if something happened to the esp-prog hardware or if I screwed up the device drivers on my PC.
Note: COM1 is on my motherboard

Here is the PlatformIO log

Dual Rs232-hs Driver Review

And, Zadig no longer shows the FDTI driver available for replacement. Is activating the FTDI drive just a onetime thing and after that the only choice is to update to the WinUSB? Is there a way to reinstall the FTDI? Interestingly in the device manager with only the ESP-Prog plugged in it shows two Dual RS232-HS devices but no COM port. Makes me think I’ve screwed something up with the device drivers.

Here is a screen shot of the Device manager with both the target board and esp-prog plugged in using separate USB cables.

I think I’ve tried all of the obvious things including: trying a different USB cable, rebooting my PC. At one point I used the Device Manager to delete both of the Dual RS232-HS devise and the FTDI COM device and rebooted my PC, no change. I’ve rerun Zadig many times but the FTDI Bus drive never shows up again. I’ve tried reinstalling the driver but that hasn’t helped.

I realize this is probably not related to PlatformIO but there don’t seem to be many that understand configuring the ESP-Prog and @manuelbl seems to understand how all of this is supposed to work.

Dual Rs232 Hs Driver

Thanks for your support and the GREAT PlatformIO IDE.