Cheetor:
Hi There
I'm in the process of designing a shield for an Arduino Due. and unfortunately after all our PCBs have been
manufactured I was shocked to find the Due has no EEPROM (I only need 90 bytes). Thats fine I thought, we
have plenty of SPI flash chips in the factory I can use.... only to notice the "4" SPI units the Due is supposed to have. One is connected to a silly header with 5V (instead of 3.3). I have to get my SPI working over some
pins that are actually on the regular pins. and I found the second SPI is only on the BGA version of the micro.
So I asked what about the other 2? Does your library support using the USARTs in SPI mod? and if so how?
Hi Cheetor, The short answer is, I'm afraid not. Sorry. 
The latest version (3.4.0) does let you switch between existing SPI interfaces, so perhaps that might be helpful.