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External interrupt not working while UART interrupt running

karthigkin
Associate II
Posted on April 23, 2015 at 13:07

hi all ,

     i want to check the interrupt performance of STM32f407ZG controller.but i don't know how can i calculate the interrupt latency.now i a activete three interrupts ,such as

 i)UART3 RX interrupt

ii)UART3 TX interrupt 

iii)external interrupt by using PB0

 UART interrupts are working fine .but unfortunately external interrupt is not working when i combine these three interrupts.i want solution to activate the external interrupt while performing uart interrupt. 

anybody give the suggession/solution pls.thanks in advance

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