Question: Write an interrupt code on Keil uvison5, so that it would disable other external IRQs, turn on led that it's connected for 20 seconds while

Write an interrupt code on Keil uvison5, so that it would disable other external IRQs, turn on led that it's connected for 20 seconds while other LEDs will be off, at the last 10 seconds led will toggle every 0.5 seconds, the buzzer will be on with PWM, enable all IRQ

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