Multiple USB Devices (FX3+Virtual COM Port)

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
lock attach
Attachments are accessible only for community members.
BaraC
Level 1
Level 1
First question asked Welcome!

Hello,

I want to add a virtual com port to the AN75779 Example.

So, I increased the number of interfaces, the total length of the descriptor.

I also changed the bNuminterfaces for each uart descriptor.

But It doesnt work. I think, there is something with the usb descriptor. 

If you have any suggestions you are more than welcome.

Regards

b.

 

 

 

0 Likes
1 Solution
Bakal
Moderator
Moderator
Moderator
100 sign-ins 25 solutions authored 50 replies posted

Hello,

In the descriptor file, under the "Configuration Descriptor," new descriptor information has to be included to add the UVC interface. The length of the "Configuration Descriptor" and the "Number of interfaces" sections has to be updated accordingly.

Also, the endpoints must be configured in the device firmware and the functionalities for the new interface must be included in the firmware.

Regards,
Sakshi Bakal

 

View solution in original post

0 Likes
1 Reply
Bakal
Moderator
Moderator
Moderator
100 sign-ins 25 solutions authored 50 replies posted

Hello,

In the descriptor file, under the "Configuration Descriptor," new descriptor information has to be included to add the UVC interface. The length of the "Configuration Descriptor" and the "Number of interfaces" sections has to be updated accordingly.

Also, the endpoints must be configured in the device firmware and the functionalities for the new interface must be included in the firmware.

Regards,
Sakshi Bakal

 

0 Likes