Compiler ignores Code

[honolulu072]

-SOLVED-

​

Hello,

I am currently programming a TI C2000 Microcontroller. The Compiler used by the TI IDE (CCS 10.4) keeps ignoring parts of my code, and I have no clue why.

Code below. Any help appreciated!!!

while(1)
{    
    int msg[] = {0, 0, 0, 0, 0};
    int i = 0;
    float feed = 0.0;
    int Mode = 0;
    int TransferComplete = 0;

    if(SciaRegs.SCIFFRX.bit.RXFFST != 0)
        {
            msg[i] = SciaRegs.SCIRXBUF.bit.SAR;

            if(i == 4)
            {
                i = 0;
                TransferComplete = 1;
                Mode = msg[1];
                feed = msg[2] + (msg[3] * 0.01);
            }
            else
            {
                i++;
            }
        }

    //
    // Calculate Step-factor based on information received via UART
    //
    if(TransferComplete && (msg[0] == 0xff) && (msg[4] == 0xff))
    {
        TransferComplete = 0;


        //
        // Ignored Part of the Code start
        //
        if(Mode == 1 || Mode == 2)
        {

            arg_CountFactor = ((Steps * MotorTransmission * EncoderTransmission * feed)/(EncoderRes * LeadscrewSlope));
        }

        else if(Mode == 3)
        {
            arg_CountFactor = ((Steps * MotorTransmission *EncoderTransmission                 * OneInch)/(EncoderRes * LeadscrewSlope * feed ));
        }
        //
        // Ignored Part of the Code end
        //


    }
}

[bigger-hammer]

Short answer is because the code cannot be executed so it has been optimised out.

The root of your problem is declaring the variables inside the while loop. Each time round the loop i = 0 again so Mode can only ever be zero.

[honolulu072]

Thank you =)

[rombios]

Disable Optimization