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[SOLVED] [Moved] Start up a program in MPlab's c18

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zsolt1

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Hi,
I started using c18 compiler for PIC18F4455 without boot loader. I simply don't get to light up 2 led's on RD4 & RD5 pins. 4 Mhz oscillator works , i saw that on scope. It seems that main() never happens .
What is the reason? :bang:


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#include <p18f4455.h>
#include <delays.h>
# pragma**config FOSC=HS,WDT=OFF,MCLRE=ON
char d=0;
 
    void main(void)                                                                             
    {                                                                    
      TRISDbits.TRISD4=0;       //   27 rel
      TRISDbits.TRISD5=0;       //   28 led                                                                       
 
      while(1)                                                                                  
           {                                                                                    
             Delay10KTCYx(100);                                                                 
             d=~d;                                                            
             LATDbits.LATD5=1;     
             LATDbits.LATD4=d;                       
           }                                                                                    
    }

 
Last edited by a moderator:

Re: Start up a program in MPlab's c18

ok, actually oscillator works when MCLR tied to VSS, & not works when tied to VDD by 10K rezistor. Wired .... i put on a second PIC18f4455 cip. Acts the same way . I have never experienced this :bang:
 

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