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F28335 Can High Priority Interrupts Interrupt Low Priority Interrupts

Greetings,

 

                I have a need, in a small section of code, to block all interrupts except the PWM interrupt.  Is it possible to have a higher priority interrupt interrupt a lower priority interrupt?  If the lower priority interrupt sneaks in a cycle before the higher priority interrupt, how much latency will there be before the PWM interrupt is taken?

 

Thank you,

 

Ed