On Sat, Feb 19, 2011 at 01:39:57AM +0000, stefan harjes wrote:
> I think this problem seems to originate form some sort of miss understanding.
> SPI defines four modes, each with its own data in and data out. So your
> listing
> mentions only two SPI modes.
On FT2232H I have on hand, I can get all four SPI polarity combinations by
sending the following commands to the MPSSE:
80 00 db 11 .... CPOL=0, CPHA=0 => mode 0
80 00 db 10 .... CPOL=0, CPHA=1 => mode 1
80 01 db 11 .... CPOL=1, CPHA=0 => mode 2
80 01 db 10 .... CPOL=1, CPHA=1 => mode 3
Notice I change the value of the TCK/SK pin before sending the clock bytes
command.
Kind regards,
Berni
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