I think this has something to do with the message from the "Angry Mac  
Man".
Some of these Apple huggers have been known to put pins into the clay  
simulacrum of a PC user who does embedded design.  Not me, I have  
learned to tolerate the slings and arrows of PC folk mocking us wimpy  
Mac users.
MA

>
> On Nov 28, 2008, at 6:45 PM, Vitaliy wrote:
>
> Just throwing this out there, in case someone knows about the issue...
>
> So we have a chip, that prints a "welcome" message on startup. It is
> possible to sent it a message on UART, that would execute the "reset"
> instruction, which is #defined like this:
>
>    #define p_Reset() __asm__ volatile ("reset")
>
> Everything was working well, until I turned on optimizations. On  
> power-on,
> the chip sends the welcome message like it should. However, after  
> the UART
> "reset" command, it spits out a bunch of garbage instead of the  
> welcome
> string. Inserting a small delay:
>
>    for (i =0; i < 100; i++) ;
>
> ..fixes the problem (i < 10 is not long enough).
>
> Any ideas about what's going on? I'm just starting to look into this
> problem, but in case someone knows the answer and wants to help me  
> an hour
> or two of debugging, I'll be grateful. :)
>
> Vitaliy



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