blakeAlbion
Well-known member
Hi, I am trying out my USB Host cable.
Am I right to expect to see +5V on pin that says 5V?
I am not getting anything. Did I damage it by plugging in USB device? Is there anything I need to do to "turn on" the 5V power?
I have no experience with USB hosts. I'm assuming a host provides 5V (and enough current) for a USB device (or really just a hub), uses the same USB protocols that a regular USB client port uses, plus it handles discovery and connection of client devices.
But I have never done it myself so I have no confidence in what I am doing.
If I can figure this out, I would like to try using a Teensy 4 for USB Host. But I'll need to understand my responsibility for providing power.
Thanks,
Ben
Am I right to expect to see +5V on pin that says 5V?
I am not getting anything. Did I damage it by plugging in USB device? Is there anything I need to do to "turn on" the 5V power?
I have no experience with USB hosts. I'm assuming a host provides 5V (and enough current) for a USB device (or really just a hub), uses the same USB protocols that a regular USB client port uses, plus it handles discovery and connection of client devices.
But I have never done it myself so I have no confidence in what I am doing.
If I can figure this out, I would like to try using a Teensy 4 for USB Host. But I'll need to understand my responsibility for providing power.
Thanks,
Ben