interrupt handler

Can An ISR Be Interrupted?

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Can An ISR Be Interrupted? Normally, an interrupt service routine proceeds until it is complete without being interrupted itself in most of the systems. However, If we have a larger system, where several devices may interrupt the microprocessor, a priority problem may arise. What happens to interrupt in ISR? An interrupt is a signal to

What Is Difference Between Vectored And Non-vectored Interrupts?

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What Is Difference Between Vectored And Non-vectored Interrupts? Vectored Interrupts are those which have fixed vector address (starting address of sub-routine) and after executing these, program control is transferred to that address. Non-Vectored Interrupts (Scalar Interrupt) are those in which vector address is not predefined. What is meant be vectored interrupts? In a computer, a