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You are here: Home / Replies / thanks for the replywhat

thanks for the replywhat

|

Microcontroller › AVR › AVR PORT pins › thanks for the replywhat

November 17, 2011 at 11:40 am #6848
Ashutosh Bhatt
Participant

thanks for the reply

what happens in proteus simulator that i tell u

 

if the following code is written to blink the LED then it blinks fine

 

PORTD = (1<<PD0);

_delay_ms(1000);

PORTD = (0<<PD0); 

 

but if the code is

 

PORTD|= (1<<PD0);

_delay_ms(1000);

PORTD| = (0<<PD0);

 

then it stays on. no blinking

 

but again if the code is changed to

 

PORTD|= (1<<PD0);

_delay_ms(1000);

PORTD& = ~(1<<PD0);

 

led starts blinking

so my questions is why and how?

 

 

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