[SOLVED] Link Error: Cannot access symbol (_Yaxis) at an odd address.

[Raady Here]

Hi ,

I am trying to update variables based on scanned letters from a function which scans the keypad.

// code for Keypad.c
extern Xaxis,Yaxis,Zaxis;
const unsigned char character[] = {'M' ,'1' ,'2' ,'3' ,'U' ,'4' ,'5' ,'6' ,'D' ,'7' ,'8' ,'9' ,'E' ,'S' ,'0' ,'C'};
 
Keypadscan()
{
       {
        // ...
        cKeyPad = character[ii];
       // ...
       }
       if(cKeyPad == 'M')        Xaxis = 1;
       if(cKeyPad == 'C')        Xaxis = 0;
       if(cKeyPad == 'U') {
            if(Yaxis > 0 )
                 Yaxis++;
       }
       cKeyPad = 0;
}

If I press M & C xaxis is getting updated. And If I press U I get a link error
Link Error: Cannot access symbol (_Yaxis) at an odd address.

I tried interchanging values of M to U but still the error persists.

Where could I be wrong ?

dspic30f5011/MPLAB 8.8v
Regards,
Raady.

 

[MKVRAJU]

hii.

You aren't declaring a type for the extern variables, the compiler probably assumes they are 16 bit However, if they are actually bytes then they can be at an odd address which then fails in your function.