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PIC C code and Comparator Hysteresis

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Moderators: Ajay, Junied , abbas1707, Arun Kumar V, pdi33, Shailesh NAYAK, ۞ TPS ۞, shyam, sashijoseph

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Luqman

Thu Aug 23 2007, 02:59AM

Registered Member #1962

Joined: Wed Jul 04 2007, 03:13AM

Posts: 18
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how does the following cunction give 1 second delay?

void sec1()//can be fine tuned by changing the for loop values
{

bit_8 i,j;
TMOD=0x11;
for(i=0;i<230;i++)
_nop_();
for(i=0;i<7;i++)
{
TH1=0;
TH0=1;
TL1=0;
TL0=0;
TR1=1;
for(j=0;j<119;j++)
_nop_();
while(TF1!=1)
{
for(j=0;j<255;j++);
_nop_();
}
TF1=0;
TR0=1;
TR1=0;
while(TF0!=1)
{
for(j=0;j<120;j++)
_nop_();
}
TF0=0;
TR0=0;
}
}

Ajay

Thu Aug 23 2007, 03:10AM

Rickey's World Admin

Registered Member #1

Joined: Fri Feb 24 2006, 04:56AM

Posts: 3303
Thanked 611 times in 578 posts

well i was noob at that time..

when i wrote that function.. try writing a better 1 sec delay yourself

take care of the call and jumps etc.

try making 1 sec routine with the help of simple for loops.. i think thats much better..

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Luqman

Wed Sep 05 2007, 11:18PM

Registered Member #1962

Joined: Wed Jul 04 2007, 03:13AM

Posts: 18
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well ajay, i would like to request u plz start PIC projects and coding PIC controllers so that we can get skills to program it easily.

Ajay

Thu Sep 06 2007, 01:00AM

Rickey's World Admin

Registered Member #1

Joined: Fri Feb 24 2006, 04:56AM

Posts: 3303
Thanked 611 times in 578 posts

well Luqman, i really want to start by i don't have PIC controller with me.. and i think there is not much difference in controllers..
PIC AVR 8051 everything is same.. there is no difference.. whatever you make in 8051/AVR you can do the same thing in PIC to.. the only difference is features and some registers thats all..
When i get a PIC IC with me... i will start another step by step tutorial for it...