High Speed USB bridge using Arduino Due

[moffy]

I have been looking for an easy high speed USB bridge for a while when I ran across this post: https://forum.arduino.cc/index.php?topic=379897.0
Anyway I tried some slightly modified code and got: 5.1Mbytes/s using a 256 byte buffer and 8.5Mbytes/s using a 512 byte buffer. It uses the native USB port of the DUE, and is the easisest high speed USB bridge I have come across.
So this is just in case you haven't heard of it before. Attached is also my code.

[moffy]

I was wondering if other people would like to share their high speed USB to PC solutions with code? It would be a useful resource.

[Rerouter]

For the sam3x8e (arduino due), the default arduino code driving the USB communications is the main limitation on the native port,

https://www.pjrc.com/teensy/benchmark_usb_serial_receive.html

While I was researching for my own project in the past I found many implementations able to handle SD card - Native USB at up to 20MBps, but I never got to programming up that project.

as you are saying you want it to act as a "USB Bridge" you should be aware only 1 of the USB ports is native, the other is relying on a UART-USB chip, he will be your main limitation.

[NiHaoMike]

Are you looking to get data into the PC or out of it? There's already an open source logic analyzer based on the FX2 and there's apparently a digital out version of the fl2k chip.

[moffy]

I am looking primarily to get data into the PC but bidirectional would be a benefit.
I will look into the fx2 logic analysers.