USB alpha ... PI3 AARCH64 and PI 1,2,3 AARCH32

My redux of CSUD (Chadderz's Simple USB Driver) by Alex Chadwick was converted to 32/64 bit compatible code. I also merged nested interrupt code which blinks the LED while the USB runs.

Just in the process of updating ... I will update details here shortly

If you just want to see it just put the files in the DiskImg directory on a formatted SD card and place in your Pi.

To compile edit the makefile so the compiler path matches your compiler:

For Pi1:

Make Pi1

For Pi2:

Make Pi2

For Pi3 in 32 Bit:

Make Pi3

For Pi3 in 64 Bit:

Make Pi3-64

To clean for full compile:

Make Clean