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Nested interrupt service routine example in C ??

Question asked by rschoop on Dec 3, 2012
Latest reply on Dec 7, 2012 by Prashant

Hello ,


Is there any  example to illustrate how to  write  a  nested interrupt service routine  in  C ??


I searched the forum ;   I read the  manuals  ,  in particular the  Blackfin  processor programming reference , but  I don't see  an example in C.

I clearly  understand that  you the  push the RTI  at the beginning of the isr  and  at the end you have to pop the  RTI  back,   but I don't know how to implement it.   I have to say that  I can write  non-nested isr's  in C,   but   can someone  give me an example how  I can write  a  nested isr in C  ??