nRF52840 more than one USB 2.0 connections

RE: nRF52840 more than one USB 2.0 connections

Amanda Hsieh — Fri, 28 Jun 2019 12:44:01 GMT

Hi Neel,

Yes, it should work.

Amanda

RE: nRF52840 more than one USB 2.0 connections

Neel — Fri, 28 Jun 2019 11:47:28 GMT

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

[quote userid="2949" url="~/f/nordic-q-a/49105/nrf52840-more-than-one-usb-2-0-connections/195302"]www.ti.com/.../TS3USB221A[/quote]

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

Please confirm.

Thanks

Neel.

RE: nRF52840 more than one USB 2.0 connections

Amanda Hsieh — Fri, 28 Jun 2019 11:44:00 GMT

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

RE: nRF52840 more than one USB 2.0 connections

Neel — Fri, 28 Jun 2019 09:11:15 GMT

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.

RE: nRF52840 more than one USB 2.0 connections

Amanda Hsieh — Fri, 28 Jun 2019 08:56:52 GMT

Hi,

The nRF52840 only has one USB interface.

Please see this post.

Best regards,

Amanda