Remove dodgy indentation and <CR>.
Removed math files
Remove FSL and buttons interrupt as these aren't used.
Remove extra <CR>.
New HC macros.
hc_clear_buffer() added.
Fixed alignment, number of cycles, and made channels externs.
Allows channel select;
New FSL protocol;
Informs HC of new sample rate/width when detected.
Now handles FSL protocol and multiple sample widths.
Change hc_set_mode to not include width;
Now processes 16bit ethernet data too.
Merge with embs-pack-v5