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CyUSB3 FX3 Composite Device | Cypress Semiconductor

CyUSB3 FX3 Composite Device

Summary: 2 Replies, Latest post by Stan on 08 Nov 2016 08:44 AM PST
Verified Answers: 0
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sbertrand_1682031's picture
User
13 posts

Hi,

I am writing a firmware on the FX3 SuperSpeed explorer Kit.

I have a configuration of a composite device ( PTP + Vendor Interface ). Windows is able to enumerate the device correctly. There is 2 interfaces from the device being listed.

For development purposes, I would like to access the interfaces of the device in Cypress USB Control Center. I have set a different PID in order for the device to enumerate using standard windows driver. I change the PID to one of Cypress CyUSB driver but the composite device is not able to start and I cannot access it from the Control Center.

I do have other interface from other Cypress device like the USB-Serial (Dual Channel) (VID 04B4 PID 0007) listed in the USB control center. Therefore it is possible to access composite device interfaces from the control center.

I am looking for information in order to make my device interfaces available in the Control Center so I can send and receive USB data for test purposes.

Regards,

Stan

mady's picture
Cypress Employee
967 posts

Hi,

When you change the PID, you might need to manually bind it to the cyusb3.inf driver for the very first time. You can do this in the device manager. The Interface with the changed PID might appear in the Other Devices Section.

Right click the device -> Properties -> Drivers -> Update Driver -> Browse My Computer for Driver Software -> Let me Pick from a List of device drivers on my computer -> Have Disk -> Browse and navigate to the location: "C:\Program Files (x86)\Cypress\EZ-USB FX3 SDK\1.3\driver\bin" and select cyusb3.inf

Now you will be able to see the device on the control center.

Regards,

- Madhu Sudhan

 

sbertrand_1682031's picture
User
13 posts

Hi

Thank you for the answer.

Would there be a way to access all the interfaces of a composite device under the same device in the Control Center ?

Regards,
Stan

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