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Please give me advice about how to use NVIC

Question asked by sagayama.toru on Nov 6, 2015
Latest reply on Nov 6, 2015 by Clive One
My colleague is in trouble about NVIC of STM32L053..
At the moment, he wants to use several external interrupts;
some of them are assigned to EXTI line 0, some others are assigned to EXTI line 1,
and the rest are assigned to EXTI line2.
According to him, EXTI line 0 doesn't work at all regardless edge trigger happens.
Also some interrupts of line 1 and line 2 don't work at all regardless edge triggger happnes as well.
Does he take care of setting register when he assigns several interrupt to the same vector ? If someone can offer a sample program to solve this issue, I appreciate it.