kishore kumar

Clarification Regarding MCF52233

Discussion created by kishore kumar on May 11, 2010
Latest reply on May 12, 2010 by Bryan Kattwinkel

i am using freescale Controller MCF52233, and have already developed three different projects with the following interrupt level

                        1) UART 0         IL – 5     IP – 2

                        2) UART 1         IL – 3     IP – 5

                        3) Pulse1          IL – 6     IP – 5

                        4) Pulse2          IL – 6     IP – 3

                        5) RTC              IL – 6     IP – 1

                        6) Watch Dog   IL – 6     IP – 7

                        7) PowerFail     IL – 1    IP – Mid

           

            I have not noticed any problem when execution of program in the field, But when i add one more interrupt for computer interface(UART2) at IL – 7 & IP – 3 some inputs pulses/signals are missing, failure of frequent communication with UART0 are also encountered. if i decrease the interrupt level for UART2 data get lose

 

       I want to know, how to handle interrupts without loss of low level interrupts. Brief introduction will help me to solve this problem.

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