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Keil Error - Building

*** ERROR L118: REFERENCE MADE TO ERRONEOUS EXTERNAL

#include<reg52.h>
int i,j;
bit state=0;
sbit ledPin = P1^5;
void main()
{
        while(1)
        {
                ledPin = 1;
                for(i=0;i<1000;i++)
                {
                        for(j=0;j<120;j++)
                        {
                        }
                }
                ledPin = 0;
                }
}

Thx in Advance

Parents

0 ImPer Westermark over 13 years ago

Besides the original question, there are two things to consider here.

1) You know that software-only delay loops are dangerous? The compiler can remove them - or greatly change they delays - when you play with optimization levels or switch compiler verison/brand?

2) Are you sure that you only want a delay while pin is high - and no delay while pin is low?
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0 ImPer Westermark over 13 years ago

Besides the original question, there are two things to consider here.

1) You know that software-only delay loops are dangerous? The compiler can remove them - or greatly change they delays - when you play with optimization levels or switch compiler verison/brand?

2) Are you sure that you only want a delay while pin is high - and no delay while pin is low?
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