4x4 keyboard need help to to convert a pseudocode into c

althealxy said:

can any help me with this? to convert a pseudocode into c program code?
{
set port C and port D to input(appropriate TRIS registers)
loop until port D pin 0 goes high
read port C pin0-pin3
perform look-up for the corresponding value
}


can i have a reply quick? i need it urgently

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milan.rajik said:

If you loop until PORTD.0 becomes 1 then MCU will not be able to do any other thing during that time.

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Code C - [expand]
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char kp = 0;
 
void main() {
 
TRISC = 0xFF;
TRISD = 0xFF;
 
    while(1) {
 
        while(RD0_bit == 0);
 
        kp = (PORTC & 0x0F);
 
        switch(kp) {
 
            case 0:
                //do what you want here
                break;
            case 1:
                //do what you want here
                break;
            case 2:
                //do what you want here
                break;
            //...
 
            default:
        };
    }
}

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milan.rajik said:

What do you think? Is it something else?

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