what is warnings ment?

[whung.john]

today i compile my code.
the compiler send a warning.
who can help to modify , thanks u very much

line 242[1,1];assignment inside relation expression .

the area code follow as:
if (!input(pin_b3) && (keyscan=1)) //sw17
{
output_low(pin_a4);
control_motorkey=0;
}

[Steve H.]

This is assigning a 1 to keyscan, not checking if keyscan is equal to 1,

"keyscan=1"

perhaps you meant,

"keyscan == 1"

???

HTH - Steve H

[whung.john]