[En-Nut-Discussion] STM32F SPI drivers and chip select
hmnews at proconx.com
Wed Feb 20 23:57:20 CET 2013
Thank you Uwe for the clarification, it's appreciated.
On 21/02/2013 12:06 AM, Uwe Bonnes wrote:
>>>>>> "Henrik" == Henrik Maier <hmnews at proconx.com> writes:
> Henrik> Hi STM32 Developers, I am currently allocating the pins on a
> Henrik> hardware to I/O and like to do a quick check regards the STM32F
> Henrik> SPI drivers:
> Henrik> The driver seems to use "Software NSS mode". Am I correct that
> Henrik> any GPIO pin can be used as chip select, not only the dedicated
> Henrik> NSS pin.
> The code comments suggest so
> Henrik> Would there be any (future) benefit to use the NSS pins
> If somebody extends the driver to use hardware NSS, you can only use the
> extension if you use the NSS pin.
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