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  VS Arduino › › › What is "'touch' hardware serial port"
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Normal Topic What is "'touch' hardware serial port" (Read 2294 times)
Trek19
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What is "'touch' hardware serial port"
Aug 7th, 2020 at 4:33pm
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I get this message but dont understand it, any ideas.
The Upload happens but I cant see the output in the VM Serial monitor but I can see it in CoolTerm.


Uploading 'Sketch1' to 'Adafruit Feather Bluefruit Sense' using 'COM3'
Unable to 'touch' hardware serial port: COM3. Now assuming selected port is bootloader port. This might still fail, have you got the correct board selected?
Upgrading target on COM4 with DFU package lease\Sketch1.ino.zip. Flow control is disabled, Single bank, Touch disabled
########################################
########################################
########################################
##################################
Activating new firmware
Device programmed.
     The upload process has finished. via 'COM4'
  
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Simon@Visual Micro
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Re: What is "'touch' hardware serial port"
Reply #1 - Aug 7th, 2020 at 4:58pm
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This most often means the port is in use by another process.

To perform the upload, the port will need closing in all external programs such as CoolTerm, before performing the upload.  The Serial Monitor in Visual Micro automatically disconnects when uploading.
  
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Trek19
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Re: What is "'touch' hardware serial port"
Reply #2 - Aug 7th, 2020 at 5:09pm
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I got this message before I started CoolTerm and I cant see any other devices using the port.
I set the upload port to COM3 but it says it uploads on COM4 but I cant see a COM4 in Device Manager.
Maybe something about the Adafruit Feather Bluefruit Sense board is causing it?

  
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Tim@Visual Micro
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Re: What is "'touch' hardware serial port"
Reply #3 - Aug 7th, 2020 at 8:22pm
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Please give the info requested in yellow above

btw: Some boards do need to boot onto a different port for upload. That's called "touching the port" at 1200 baud to force the reboot then we detect the new port.

Thanks
« Last Edit: Aug 7th, 2020 at 8:23pm by Tim@Visual Micro »  
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Trek19
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Re: What is "'touch' hardware serial port"
Reply #4 - Aug 8th, 2020 at 7:20am
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Verbose as requested.
  
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Tim@Visual Micro
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Re: What is "'touch' hardware serial port"
Reply #5 - Aug 8th, 2020 at 11:52am
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I think ensure the correct usb driver is installed for the board and ensure your sketch code starts serial at 115200.

CoolTerm and some other serial viewers don't use C# and manage devices at a very low level. Therefore don't always suffer from usb issues.

I see it is using the Microsoft Serial USB driver. I am not sure if that is the correct one for your board.
  
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