In the data sheet of jetson nano module we can read (page 22/41):
“USB 2.0 Ports
Each USB 2.0 port operates in USB 2.0 High Speed mode when connecting directly to a USB 2.0 peripheral and operates in USB 1.1 Full and Low Speed modes when connecting directly to a USB 1.1 peripheral. All USB 2.0 ports operating in High Speed mode share one High Speed Bus Instance, which means 480 Mb/s theoretical bandwidth is distributed across these ports. All USB 2.0 ports operating in Full or Low Speed modes share one Full/Low Speed Bus Instance, which means 12 Mb/s theoretical bandwidth is distributed across these ports.”
1- I understand there is a shared 480 Mb/s bandwidth because of a single USB controler.
So if I use the three USB2.0 ports I will get a 160 Mb/s max theoretical bandwidth per port ?
2- Is it the same with USB3.0 ports (shared BW) ?
3- I have to connect 4 devices with USB2.0 ports on JNN module.
If I want the max USB2 speed (480 Mb/s) on each device port, I must use the USB3.0 port with a HUB ?
Blue Frog Robotics