Question: Nested Vectored Interrupt Controller ( NVIC ) of STM 3 2 F 4 MCU receives interrupt requests ( IRQ ) at different times as shown

Nested Vectored Interrupt Controller (NVIC) of STM32F4 MCU receives interrupt requests (IRQ) at different times as shown below. Sketch the processor
modes and processor operations. Show stacking, unstacking, vector fetches, and interrupt service routines (ISR) for all interrupts. Clear interrupt requests
just before interrupt returns. Hint: Usart1 IRQ is received during execution of the ISR of EXTI. NMI IRQ is received during execution of the ISR of Usart1.
Nested Vectored Interrupt Controller (NVIC) of STM32F4 MCU receives interrupt requests

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