MSP430F148: Why does IDE only "see" one of the conditions in the function? Why can't I see float values in the debugging?

Left empty - having problems with formatting....

float GetTemperature(WORD pvalue)
{
    float gtemp;
    float valsq = (float)(pvalue * pvalue);

    if (pvalue > 3800)
    {
        // y = -0.1553x + 592.62
        gtemp = (-0.1553 * pvalue) + 592.62;

    }
    else if (pvalue > 1500)
    {
        // y = -4E-06x2 - 0.0068x + 89.927
        gtemp = -(0.000004 * valsq) - (0.0068 * pvalue) + 89.927;
    }
    else
    {
       // y = 4E-05x2 - 0.1244x + 175.7
        gtemp = (0.00004 * valsq) - (0.1244 * pvalue) + 175.7;
    }

    return gtemp;
}

I'm having a hard time in posting - I don't understand why the text is being interpreted as code...

Hello,This function is called with the ADC 12-bit value of temperature.

The value is a WORD (16-bit) and is converted to a float value by using the equations according to its value.

For some reason, when I try to set a breakpoint within the different conditions, only the first one is allowed.

Also the value (1426) is definitely not greater than 3800 - so why does this row get called?

Is there something about dealing with float values that is specific with this MSP430?

Thanks for any help and ideas.

Mechi

Do you have optimization turned on? Sometimes that will eliminate local variables or even whole statements as it reorganizes things for speed and efficiency. Try turning optimization off temporarily for debugging.

Using only level 0 - register optimization. 

Without this, the code doesn't work...

You should probably do the squaring in floating point, 1500  * 1500 won't fit in a 16 bit number.

You're right - I guess it's an issue with the debugger - because even though the cursor always jumps to the same line/condition, the correct values are computed.

Thanks!