D1 mini clone - USB serial enumeration loop in windows
Posted: Tue Aug 24, 2021 3:28 amI have a chinese D1 mini clone (the one with an ESP-12 module on the back).
When I plug it in to windows it starts to enumerate the usb serial and immediately de-enumerate(?) again.
So the according COM port shows up for a second and is gone again just to come back immediately again a.s.f.
When I hold the reset button the COM port stays visible.
I managed to clear the flash with esptool. In this state the COM port stays available.
I flashed the Arduino ESP blink example. LED flashes fine, COM port stays gone.
I flashed the Arduino ESP FSBrowser example and I am back in the enumeration loop.
I added some logging in Arduino.This is what I get after releasing reset button with the FSBrowser flashed:
A second module from the same order works nicely.
Anyone any idea what is going on here?
When I plug it in to windows it starts to enumerate the usb serial and immediately de-enumerate(?) again.
So the according COM port shows up for a second and is gone again just to come back immediately again a.s.f.
When I hold the reset button the COM port stays visible.
I managed to clear the flash with esptool. In this state the COM port stays available.
I flashed the Arduino ESP blink example. LED flashes fine, COM port stays gone.
I flashed the Arduino ESP FSBrowser example and I am back in the enumeration loop.
I added some logging in Arduino.This is what I get after releasing reset button with the FSBrowser flashed:
Code: Select all
09:47:00.817 -> ets Jan 8 2013,rst cause:2, boot mode:(3,6)
09:47:00.817 ->
09:47:00.864 -> load 0x4010f000, len 3584, room 16
09:47:00.864 -> tail 0
09:47:00.864 -> chksum 0xb0
09:47:00.864 -> csum 0xb0
09:47:00.864 -> v2843a5ac
09:47:00.864 -> ~ldA second module from the same order works nicely.
Anyone any idea what is going on here?
