Lpc2000

Can you try declaring your m_CmdTmp as static? This will remove it 
from the local registers into a specific memory location. Volatile is 
even better. This might give you some clues either if it works or it 
does not.

Guille

--- In lpc2000@yahoogroups.com, "fl429" <fl429@...> wrote:
>
> Hi, Folks,
> 
> Hopefully, someone can shed some light to this. Thanks.
> 
> First, this is not my first app on the LPC2138. I had no trouble 
> before, until I use IAP in this one.
> 
> The IAP calls seem working OK. No error reported. Flash memory does 
> program as expected, as far as I can see.
> 
> But, a simle C structure in one of the functions now behaves 
wierdly 
> SOMETIMES. This is called repeatedly in a loop.
> 
> switch(m_CmdTmp) {
> case 1:
>     ..... codes here
>     m_CmdTmp=2;
>     break;
> case 2:
>     if(!Started()) {
>          Starting();         <<====== Point 1
>          // some other stuff ... here
>          m_CmdTmp=3;
>     }
>     break;
> case 3:
>     ...
>     break;
> }
> 
> After some poking around, I found I am at Point 1 while m_CmdTmp 
> already equals 3 (m_CmdTmp=3).
> There is no interrupts changing the value of m_CmdTmp behind my 
> back ! m_CmdTmp is supposed to progress ONLY in this switch routine.
> 
> I tried to change stack sizes to no avail. I reserved 256 bytes 
from 
> the TOP of SRAM (0x400007e00 and up) from being used by this APP. 
> No, I still have this problem.
> 
> Any ideas ?
> 
> Thanks a lot,
> 
> Greg
>