Hi all,
I just converted a graphics display driver from SPI bit-bang to hardware SPI. Works fine.
Strange thing though... it works REGARDLESS of which SPI mode I use!
The datasheet for the graphics device shows transfers on the rising edge of SCK and SCK idle mode is logic 1 which means "SPI Mode 3" (and mode 3 works).
But, modes 0 thru 2 ALSO work?
What the heck is going on here? Any ideas?