Automatic NSS-CS management by hardware with SPI

amar1567 · ‎2010-01-16

Posted on January 16, 2010 at 18:41

amar1567 · ‎2011-05-17

Posted on May 17, 2011 at 13:38

Hello Sir,

Is Automatic NSS-CS management by hardware by SPI engine working?

In my case it is not working.

Can you please post the example code for ''Automatic NSS-CS management by hardware by SPI engine '' which works on STM3210E-EVAL board.

Please get back.

Thanks

Amar :)

jj · ‎2011-05-17

Posted on May 17, 2011 at 13:38

Hello Amar,

STM32 has known ''difficulty'' with ''normal/customary'' NSS signal generation. This was placed on a ''request/fix'' list over a year ago.

You will find several code examples featuring SPI. Suggest you review - you will find that NSS is set/cleared via instruction - to my best knowledge it is not ''auto generated'' - as has been done for years on lesser MCUs. Annoying but can be made to work...

[ This message was edited by: jj.sprague on 16-01-2010 23:11 ]