Re: [Sdcc-user] AT89C2051 issues

[Rod B. <ro...@bo...>]

This is just a wild guess but I got the impression that even the 
previous working program did not work as well.  I'm guessing your 
problem is not with the compiler but with the environment.  I would 
suggest that before reprogramming the part you erase the flash first I 
don't want to teach granny to suck eggs but you do need to erase the 
flash before re-programming.

Regards,
Rod Boyce

J S wrote:

>Hi Bernardo,
>
>Hmm, not sure about that.  I checked the asm file and
>I see comments in there showing where the for loops
>are and such.  Also, there isn't any warnings or
>errors during the compile for me to look further at.
>
>I also just noticed a new snapshot was released and
>decided to try it just in case.  But unfortunately, it
>still won't work.
>
>Thanks,
>J Silverman
>
>--- Bernardo Clavijo <bjc...@ya...> wrote:
>  
>
>>doesen´t the optimizer jump out of that "delay" for
>>just because the
>>variable didn't get used so far?
>>
>>just an idea, check warnings during conpile, and the
>>asm file, which
>>have a lot of comments left by the compiler.
>>
>>Saludos
>>
>>    BJ
>>Bernardo Clavijo
>> 
>>    
>>
>>>sfr P0 = 0x80;
>>>sfr P1 = 0x90;
>>>
>>>void main (void)
>>>{
>>>     unsigned char x=0;
>>>     unsigned int y;
>>>
>>>     while (1)
>>>     {
>>>         if (x==0) {x=255;} else {x=0;}
>>>
>>>         P0 = x;
>>>         P1 = x;
>>>       
>>>         if (x==0)
>>>             for (y = 0; y < 20000; y++)
>>>             { ; }
>>>         else
>>>             for (y = 0; y < 60000; y++)
>>>             { ; }
>>>     }
>>>}
>>>      
>>>
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