What is the difference detween ISR & function call
Answer Posted / achal
this is with reference to ARM7. The function call is made
when cpu is in User mode(non-priveleged).
But an ISR is called from an Interrupt handler and cpu is
in one of the priveleged modes. Whenever an interrupt
occurs the control moves to a particular address in vector
table.
regards
Achal
| Is This Answer Correct ? | 3 Yes | 2 No |
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