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Write C language program to check bit P1.2. If it is high send 55 H to PO, otherwise send AAH to P2.
written 5.7 years ago by gravatar for teamques10 teamques10 ★ 66k •   modified 4.3 years ago
embedded systems
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written 5.7 years ago by gravatar for teamques10 teamques10 ★ 66k •   modified 5.7 years ago

The program

#include< reg51.h>

sbit data_bit = p1^2; $\ \ \ \ \ \ \ \ \ \ \ \ $// declaration of single bit of port 1

void main(void)

{

    data_bit = 1; $\ \ \ \ \ \ \ \ \ \ \ \ $// set bit P1.7 as an input

    while(1)

    {

        if(data_bit == 1) $\ \ \ \ \ \ \ \ \ \ \ \ $// check P1.7 bit

        P0 = 0x55; $\ \ \ \ \ \ \ \ \ \ \ \ $// if 1 then send 55H to port 0

        else

        P2 = 0xAA; $\ \ \ \ \ \ \ \ \ \ \ \ $// if 0 then send AAH to port 2

    }

}
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