C32 compiler macro value cannot be changed

[ponnus]

Hello everyone,

I am using PIC32 USB starter kit ll, with C32 compiler which came with the kit itself. I have been using it for many months.
Now I am facing a strange problem. When I tried to change the value of a macro and build it, the macro still holds the previous value.
I tried it many times, but still same problem.......
I tried to clean and build the project, but still the problem unresolved.
I then reboot my PC and it was ok......,but this same problem is occuring in another PC also.

Does anyone faced such a problem?

Thanks:-|

 

[FvM]

You say, you didn't understand the example code? You should be more specific.

 

[ponnus]

Hai,
I have some macros in my program......such as

#define High_THRESHOLD 500
#define Low_THRESHOLD 50

My program is working fine in PIC32 MPLAB IDE with C32 compiler.....I was able to edit the program and burn it successfully.
But, now when I changed the values of macros....like......

#define High_THRESHOLD 300
#define Low_THRESHOLD 10

Build was successful. But when I put my mouse cursor on top of these macros, I saw the previous values and not new ones.
I burned the program and the microcontroller is taking the old value as threshold.

This problem disappeared when I rebooted my PC. But if I want to edit the values again.....then again I have to reboot......

Thanks

 

[FvM]

I never came across such aproblem with C32 and MPLAB. I can only guess that the respective header files haven't been included to the project. You can check if the files are listed in the build log.

 

[jayanth.devarayanadurga]

Zip and post the project file. I will Compile and test.

 

[keith1200rs]

I find a problem with Microchip compilers with .h include files where it doesn't notice the change in the include file when you use F10 - "Build" (assuming you are using MPLAB not MPLABX). Try "Rebuild" - CTRL-F10. That fixes the problem for me.

Keith

 

[ponnus]

hai,
Thank you for your reply.

I am sure that the code is fine because it's been working for months........

I find a problem with Microchip compilers with .h include files where it doesn't notice the change in the include file when you use F10 - "Build" (assuming you are using MPLAB not MPLABX). Try "Rebuild" - CTRL-F10. That fixes the problem for me.

Keith

I also experienced this problem and solved it the same way, But this is something new to me...and I didn't find a reason for that to occur.

Now when I reinstalled the compiler and IDE and the problem no longer occurs........:smile:

 

[FvM]

I find a problem with Microchip compilers with .h include files where it doesn't notice the change in the include file when you use F10 - "Build" (assuming you are using MPLAB not MPLABX). Try "Rebuild" - CTRL-F10. That fixes the problem for me.

Are you sure that the respective *.h file is included to the project files?

 

[keith1200rs]

Yes, include files are in the project. And another puzzle is that I often have two include files and whenever I do a project 'save as' it never copies the delay.h file to the new project but it does with the other include file. I have never worked out why and just get used to manually copying the delay.h over.

Keith

 

[FvM]

So apparently I just had luck up to now. Thank for the warning.

 

[keith1200rs]

It manifests itself in a similar way to described in the original post - I change a #define in my variables.h file and recompile and it automatically saves the file but doesn't recognise that all the C files that include it need recompiling (presumably because they haven't actually changed). Rebuilding fixes it.

Keith