On 24 July 2014 02:26, Ralph Stirling <ralph.stirl...@wallawalla.edu> wrote:

> The wiki mentions that these might be available in 2.6, and I see
> a bspi.c file in the 2.5 drivers, but don't find much documentation
> or indication of how it works.  I just want to read a simple single
> channel ADC like the LTC1401 for the present.

You would need a 7i43 firmware with a BSPI channel. (It isn't all that
hard to build a firmware, but might be more than you want to take on
given the other irons you appear to have in the fire).

If you load that firmware then a "hook" will be created into the
hostmot2 driver that will let you access the registers and work with
them.
Look at src/hal/drivers/mesa_7i65.comp for an example of a comp that
works with BSPI.

A quick way to get started might be to find a 7i65 firmware for the 7i43.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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