Question

Which is the collect answer?

Consider the following circuit diagram and code: +V w L4 L2 Cabi L1 Cobo LO PORTL = 0x16; unsigned char val=2; while (1) { PORTL &=-(1<<val); if (PINL & ©x1) { val -=1; if (val<1) { val=1; } delay_ms (1000); } else { PORTL &=0xEF; } } Assume DDRC has been initialised, the switch is open and the system is powered on, select the correct statement: OLEDO IS OFF, LED 1 is ON, LED2 is ON. OLED1 turns ON then LEDO turns ON after 1s, LED2 is ON. OLEDO is ON, LED 1 is ON, LED2 is OFF. LEDO turns ON then LED1 turns ON after 1s, LED2 is OFF.

Answer 1

Statement 3 is correct.

LED0 turns ON then LED1 turns on after 1s, LED2 is off.

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