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Question about get_timer1() ...

 
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leandroguida



Joined: 09 Dec 2008
Posts: 4

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Question about get_timer1() ...
PostPosted: Mon Dec 15, 2008 8:55 am     Reply with quote
Hi there.

See the following codes:

Code 1:
Code:

set_timer1(0);
output_high(PIN_A0);
while(get_timer1()<250){
    //wait
}
output_low(PIN_A0);

while(get_timer()<5000){
     //wait again
}


Code 2:
Code:

set_timer1(0);
output_high(PIN_A0);
while(get_timer1()<250){
    //wait
}
output_low(PIN_A0);

delay_us(5000);
}


Code 2 works well (I'm seeing the output in a oscilloscope). Code 1 don't work at all.

In the second code the while(get_timer1()<250) works. In Code 1, both of them don't work.

I'm using a PIC16F877A (Timer1 - 16 bits), My system clock is 1MHz (4Mhz crystal), and my compiler is: PCWHD 4.057
dr_delphi
Guest
PostPosted: Mon Dec 15, 2008 9:01 am     Reply with quote
In the first example, the second while, you wave get_timer instead of get_timer1
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