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Need fast context switch for _int_install_kernel_isr

Question asked by Martin Hess on Jul 2, 2013
Latest reply on Jul 30, 2013 by Martin Hess

I need to service my FlexCAN ISR in ~100us (the rate that fames can be received).

Presently, _int_install_isr is taking 184us to over 354us.  FlexCAN interrupt level is 6.

 

Possibly can use _int_install_kernel_isr but I have never done a context switch in Freescsale, nor in c.  Any examples for fast context switching?

Thanks very much!

 

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