USB 3.0

hylee101001

Hi, I'm working on a project that communicates with pc. But it would be great if the communication speed increased. So I wondered if there's a way that propeller adapts usb3.0 with it's usb port on the chip. Is that even possible?

Thanks!

Publison

Reports have been the older FTDI chips, (all used on current Parallax products, if I'm not mistaken), are not working reliably on USB 3.0. It's best to stay with USB 2.0 if possible.

Heater.

There is no USB port "on the chip" of the Propeller. You can communicate with a Propeller using a USB to serial adapter. Either a separate chip on a Propeller board or a USB-serial adapter cable/dongle.

USB 3 can transfer data at 625 Megabytes per second.

The Propeller can accept or emit data at about one thousandth of that speed. If you try hard.

There is no gain to be had from using USB 3 with a Propeller. The Propeller itself limits the transfer speed.

So no, it's not possible.

Publison

Original post was misinterpreted by me.

Correction: Programming a Propellor chip has been found to have problem on USB 3.0.

I don't know about data over USB 3.0

jmg

hylee101001 wrote: »

Hi, I'm working on a project that communicates with pc. But it would be great if the communication speed increased.

What speed do you have now ?

The Prop is likely to be the bottleneck, but there is HS USB before you need USB 3.0, and HS USB is WAY faster than a Prop.

A part like FT232H can do sustained continual 12MBd
The Parallel FTDI FS parts can get to about 1MBytes/s (8MBd), and the fastest FS Serial part I've tested is the EXAR USB-UART, can sustain above 1MByte/sec average.