CDC+CDC atmega32u4

[Eric]

Hi,

i want to open two CDC port in atmega32u4, what are changes i need to do in Descriptor and other files, thanks for any help.

-Eric

[Andrey Kraynev]

Hello Eric,

Wednesday, April 1, 2020, 9:34:05 PM, you wrote:

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> Date: Wed, 1 Apr 2020 11:34:05 -0700 (PDT)
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Have you tried to build and run DualVirtualSerial Demo provided in LUFA?
Only need to adjust MCU, BOARD and F_CPU parameters of makefile.

----
Best regards, == За сим,
Andrey Kraynev == Андрей Крайнев

mailto:mosc...@gmail.com

[Eric]

Hi Andrey Kraynev ,

Thanks for Reply!

i have tried that LUFA example that works fine, is there any way that device can show two different PID when we see this two com port on device manager at Host side.

-Eric

[Andrey Kraynev]

Hello Eric,

It is one device in the usb tree, right?
So there is one VID/PID pair.
Device is composite, two interfaces.
And two communication ports from OS's point of view.

All above is my imaginations...