CrossRoads: Awesome work so far Rob. What a confusing data sheet. Looks like there are multiple sets of SPI controllers - I don't see how they make it to IO pins tho. For example PA25-26-27-28 make up SPI 0 with 3 additional chip selects on PA29-30-31 - where are are PA30-31 on the Due schematic? PA25-26-27 only seem to be on a 2x3 header? Similarly for PE28-29-30-31 for 2nd SPI - what pins do they get multiplexed onto? I can't tell from the data sheet, same for the additional chip selects on PF0,1,2.
Is it strange that I didn't get SPI to work ? :)
pins 50-53 is supposed to be spi also?.
C:\arduino-1.5.1r2\hardware\arduino\sam\system\CMSIS\Device\ATMEL\sam3xa\include\instance In that folder, it seems that there are two spi controllers yes, but the spi library seems to ignore that fact, and I couldnt find out which of them its using.