nRF52840 more than one USB 2.0 connections

[Neel]

Hello,

I need to use USB 2.0 connection as a USB MSC device as well have it communicate over a USB 2.0 connection to a Wi-Fi module.

I know there is a USB 2.0 built into the nRf52840 but just want to confirm if I can create one more USB 2.0 connection in the chipset as well.

Please advice.

Thanks

[Amanda Hsieh]

Hi, 

The nRF52840 only has one USB interface.

Please see this post. 

Best regards,

Amanda

[Neel]

Thank you for your response Amanda.

We want to know if a chipset like

www.ti.com/.../TS3USB221A

will help us?

We want the nRF52840 to receive data from another MCU over USB 2.0 and with a PC host over USB 2.0 selectively.

Let me know.

Neel.

[Amanda Hsieh]

Hi, 

The USB on the nRF52840 is "USB device (USBD)" only. For USB communication, it needs to be connected to a USB Host(e.g. a computer). Therefore, the other "MCU" needs to be a USB Host.

Amanda

[Neel]

Hi Amanda,

So I am getting this right please confirm the following:

If the other MCU can act as a Host and the PC can definitely act as a host then we can use the

Neel said:

www.ti.com/.../TS3USB221A

for multiplexing the USBD - USB 2.0 connection on the nRF52840?

Please confirm.

Thanks

Neel.

[Amanda Hsieh]

Hi Neel,

Yes, it should work.

Amanda