Arduino-Howto-VSC-02-SerialCOM Whit Hyper V
2 Setup an Arduino programmer on a Virtual machine 2
2.1 SERIAL COM MAP with CHANGE PORT 3
2.2 SERIAL COM MAP with VSPE 3
Goal
The goal is to use a USB Serial connected on a Hyper V Host for a VM.
There are several solutions and it depends of the program which can detect serial in device manager or in registry.
Setup an Arduino programmer on a Virtual machine
The Physical COM port to program the Arduino is on the Host Machine (W2012) and detected as “COM4”
Make a RDP with Port activated as Local resources :
On the VM, it is not detected in Device Manager , but can be checked in registry :
You can also see that COM 4 in the VM is linked to TSclient COM4 (it is a rdpDrPort):
Some program like IDE Arduino can use dieectly the COM4. So, there is nothing to do.
But other program like VSC can’t detect the COM 4 as it isn’t detected in Device manager.
SERIAL COM MAP with CHANGE PORT
https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/change-port
change port [<portX>=<portY>| /d <portX> | /query
You can MAP a serial with the command : change port COM1=COM4
SERIAL COM MAP with VSPE
In the VM, create a MAP between PORT 1 and port 4 : http://www.eterlogic.com/Products.VSPE.html
Now, you can see that COM1 is linked to COM 4 :
Upload Squetch
With VSC, upload squetch : it works
VM : SERIAL with Pipe
change port /query
Create a pipe with the VM stopped.
Shutdown the VM
Set-VMComPort -VMName W2019-DEV -Number 1
Path: \\ .\pipe\SERIAL1 (it’s a arbitrary name : give a name to a new pipe on the host).
Set-VMComPort -VMName W2019-DEV -Number 2 \\.\pipe\PipeDream2
Check the port created :
Get-VMComPort -VMName W2019-DEV
I don’t think I was able to make a serial connection with pipe. It doesn’t work
Pipe 2 COM
NP2COM
On the Host Hyper V start c:\Program1\NP2COM\NP2COMV.exe
Select the pipe + select the correct baud rate and click on testing :
Check COM in the VM
Check that the RDP on the VM doesn’t have the option PORT select (to avoid conflict) :
VM SERIAL
Test with Kitty
Install as a service :
c:\windows\microsoft.net\framework\v4.0.30319\installutil.exe -t c:\Program1\NP2COM\NP2COMS.exe
Check COM with Arduino
Baud Rate
The first think is to know the baud rate of Arduino Board.
Start Kitty on the Host HyperV and select baud rate to be able to read the Serial from arduino board : 115000
On the VM , I don’t get something correct at the same speed : 115000
In the setting NP2COM, it is not correct
Restart service :
Now, it is correct :
Conclusion : change baud rate setting in IDE Arduino or KITTY is not important as it is fixed in the NP2COM
Unfortunately, I was never able to download a squetch with Arduino IDE.
Serial with RDP
Connect with Port enable in Local resources :
COM 4 not detected with Hardware manager :
But detected in Registry :
With Arduino IDE, the Serail COM 4 can be selected :
Flash done :
