Hi all !
Recently i bought 2 marvelous Nano RP2040 Connect.
During 2 weeks i had no issues…
But since february 15th i can’t make any upload between the IDE 2.3.4 and the Nano RP2040 Connect.
When i try to make an upload i receive those error messages :
Cannot perform port reset: 1200-bps touch: opening port at 1200bps: Serial port busy
Timeout. The IDE has not received the 'success' message from the monitor after successfully connecting to it. Could not connect to COM3 serial port.
I tried everything to solve this issue :
-Python script to free the COM port
-check that no other application is using the COM port : « netstat -ano | findstr :COM3 » (prompt command)
-Process kill (identification with the PID) with the application Process Explorer to make sure that no other process is using the Nano COM port
-Another PC with another Windows version (10 instead of 11)
-Windows downgrade
-complete remove and installation of the IDE
-restartS of the IDE and of the PC
-USB cable and USB port change
-driver « arduino_mbed_rp2040.inf » manual installation (with disable of the windows electronic signature!)
-bootloader start (by clicking twice on the Nano board button)
-hard reset with a wire between pin GND and reset
-when the Nano is displayed as a driver into windows, the load of « Blink.ino.elf.uf2 »
-under power shell this command to find the process using the COM port : « Get-Process | Where-Object { $_.Name -like "COM3" } »
-with handle.exe this command under prompt command : «handle.exe | findstr COM »
-make the opening of the COM port (with powershell) mandatory :
Stop-Process -Name "arduino-cli" -Force -ErrorAction SilentlyContinue
Stop-Process -Name "python" -Force -ErrorAction SilentlyContinue
-remove of the option « USB power-supply deactivation » into device manager
-……………..
In spite of 16 hours of hard work, the IDE still displays the same message each time i try to connect my Arduino Nano RP2040 Connect :
Cannot perform port reset: 1200-bps touch: opening port at 1200bps: Serial port busy
If you take a look at the Arduino’s forum, i’m not the only one to have troubles with this communication issue….
Thanks for any advice ! 