Adafruit QT Py ESP32-C3 no com port

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drmpf
 
Posts: 23
Joined: Tue Mar 17, 2015 5:04 am

Adafruit QT Py ESP32-C3 no com port

Post by drmpf »

On windows 7, with ESP32 V3.0.2
plugged in Adafruit QT Py ESP32-C3 and got USB JTAG/Serial debug unit not found/installed.
unplugged Adafruit QT Py ESP32-C3
Downloaded CH341SER.zip and ran setup.exe
clicked install
plugged Adafruit QT Py ESP32-C3 back in
USB JTAG/Serial debug unit no driver found
Opened USB JTAG/Serial debug unit and clicked update driver, browser my computer for driver software
pick from list of device drivers, Ports (COM..
scroll down to wch.cn and choose USB-Serial CH341A, click Yes to update warning
Device is working properly is shown
Choose board Adafruit QT Py ESP32-C3
Arduino Port shows COM34 (ESP32S3 Dev Module)
Arduino IDE hangs on trying to open monitor on that com port
an empty sketch compiles but will not load

OSError: exception: stack overflow
[8952] Failed to execute script 'esptool' due to unhandled exception!
the selected serial port [8952] Failed to execute script 'esptool' due to unhandled exception!
does not exist or your board is not connected

Any suggestions to fix this?

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mikeysklar
 
Posts: 13936
Joined: Mon Aug 01, 2016 8:10 pm

Re: Adafruit QT Py ESP32-C3 no com port

Post by mikeysklar »

Did the Arduino port really say S3 vs C3 for the dev module port selected? Did you select the correct port?

Code: Select all

Arduino Port shows COM34 (ESP32S3 Dev Module)
Before uploading the code have you tried long press the boot button and taping the reset button then release the boot? Then click the upload icon from the Arduino IDE.
When in the ROM bootloader, you can upload code and query the chip using esptool.
https://learn.adafruit.com/adafruit-qt- ... ep-3112697

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drmpf
 
Posts: 23
Joined: Tue Mar 17, 2015 5:04 am

Re: Adafruit QT Py ESP32-C3 no com port

Post by drmpf »

Thanks for that boot tip, missed that.
I have succeeded on Mac OS. Using ESP32 V3.0.2 and WCH driver
Selected Adafruit QT Py ESP32-C3
on MAC (and Windows 7) when the board is plugged in it is shown as ESP32S3 Dev Module in the Port selection.
NOTE: on Mac could not find the board in the terminal monitor /dev listing, but still works if you select the new extra Port option from Arduino

Currently can upload and run and open Monitor on MAC, but still not on Windows 7 even though the WCH driver says it supports windows 7
BTW, the ESP32-C3 dev board works just fine on Windows 7.

As anyone had success with Adafruit's QT Py ESP32-C3 on Windows 7?

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drmpf
 
Posts: 23
Joined: Tue Mar 17, 2015 5:04 am

Re: Adafruit QT Py ESP32-C3 no com port

Post by drmpf »

Tested on Windows 10 (via mac BootCamp)
works fine
so seems to be a Windows 7 driver problem.

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