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About interrupt preemption of MPC5604

Question asked by ning li on Dec 31, 2016
Latest reply on Jan 2, 2017 by ning li

         Hello, I meet a problem about interrupt preemption of mpc5604 these days.  Our system has many interrupts, such as iic receive, uart receive, pit interrupt and so on . I set the uart interrupt priority to 5, which is higher than iic with 3, but when I debug, the uart interrupt can't preempt the iic's interrupt leading to it miss receiving some uart bytes. 

        In the reference manual, it says a higher priority can preempt lower priority. But are there any setting for it?

Thanks very much.