Why am I getting such error for XIAO nRF52840 Sense?

Community
1

Arduino gives this error for XIAO nrf52840 Sense. I programmed it a few days ago with no problems, but now I keep getting port-related errors. How can I fix it?

Sketch uses 21212 bytes (2%) of program storage space. The maximum is 811008 bytes.
Global variables use 3096 bytes (1%) of dynamic memory, leaving 234472 bytes for local variables. The maximum is 237568 bytes.
Forcing reset using 1200bps open/close on port COM24
processing.app.debug.RunnerException
at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:152)
at cc.arduino.UploaderUtils.upload(UploaderUtils.java:77)
at processing.app.SketchController.upload(SketchController.java:732)
at processing.app.SketchController.exportApplet(SketchController.java:703)
at processing.app.Editor$UploadHandler.run(Editor.java:2061)
at java.lang.Thread.run(Thread.java:748)
Caused by: processing.app.SerialException: Error touching serial port ‘COM24’.
at processing.app.Serial.touchForCDCReset(Serial.java:107)
at cc.arduino.packages.uploaders.SerialUploader.uploadUsingPreferences(SerialUploader.java:136)
… 5 more
Caused by: jssc.SerialPortException: Port name - COM24; Method name - openPort(); Exception type - Port busy.
at jssc.SerialPort.openPort(SerialPort.java:164)
at processing.app.Serial.touchForCDCReset(Serial.java:101)
… 6 more

2

Hi，
Have you tried to restart the board using the reset key? If that doesn’t work, you can try two quick clicks to get into boot loader mode

7

Hello AndrewBrook,
So having programmed many pieces, and No specific code posted. I would offer this. Try first to connect to another Win10 or 11 computer/Laptop. Second if windows doesn’t recognise it initially , moving forward is usually a dead end.
ALWAYS select the Board and Port no matter what it say’s. (IDE) mbed vs. non-mbed.
Have a Basic Sketch ready to test with that loads on Others without issue.
Have more than one way to Read/program a device , IDE or Nrf Connect for DeskTop with the programmer.

I would start there. My .02 YMMV
HTH
GL :slight_smile: PJ