[General] 3 USB 2.0 Connections to an MCU

[rhetoricalcow]

Hi I'm currently designing a PCB and I want to interface 3 cameras with my PCB. There aren't any MCUs that I could find that had 3 USB Interfaces so I'm thinking about 2 MCUs where one is connected to two cameras and the other is connected to the other camera. How would I transmit the 'alone' camera data from the secondary MCU to the first one? Would I use SPI or some sort of protocol to stream image data? I wanted the images from the cameras to be transmitted to my PC via WIFI/Bluetooth, so I'm assuming I can't interface both of my MCUS to one Wireless transmitter. I apologize if my wording and understanding is basic, I'm a student working on a personal project.

 

[KlausST]

Hi,

USB needs a host and slaves. And it may use Hubs.

So it´r rather common to have one host, one USB_HUB with 3 connected slaves.

Don´t know what your "PCB" and your "MCU" is.
If you give more details you get better suited answers.

Klaus

 

[FvM]

USB 2.0 is a generation of the standard, no specification of actual connection speed. You should better plan your application in terms of data throughput.

 

[danadakk]

Possibly this as a solution -

https://www.cypress.com/products/hx3-usb-30-hub-controller

Regards, Dana.