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boulder
Joined: 15 Mar 2008 Posts: 53
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get_timer1() issue |
Posted: Thu Mar 05, 2009 7:48 pm |
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Hi,
Does get_timer1() really return a 16 bit interger value? In my test code, if I delay more than 2200us, the return value is over flow at 0xFF and start from 0 again, the return value is never more than 0xFF. In my project, it needs to check 10ms timeout with get_timer1(), and I expect the return value to be 1152, but it never works. The below is my code, please point out what I miss in my code?
Code: |
#include <16F689.h>
#include <stdio.h>
#include <stdlib.h>
#use delay(clock=3686400, crystal)
#use rs232(baud=115200, xmit=PIN_B7, rcv=PIN_B5)
#fuses XT, NOWDT, PUT, MCLR, NOPROTECT, NOCPD, NOBROWNOUT, NOIESO, NOFCMEN
unsigned int16 x;
void main()
{
setup_timer_1(T1_INTERNAL | T1_DIV_BY_8);
set_timer1(0);
delay_us(2200);
x = get_timer1();
printf("it's %4x\n\r",x);
while(1);
}
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Thanks!!! |
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PCM programmer
Joined: 06 Sep 2003 Posts: 21708
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Posted: Thu Mar 05, 2009 7:54 pm |
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Quote: | printf("it's %4x\n\r",x); |
You have to use "%LX" (with an 'L') to display a 16-bit or 32-bit value in CCS.
Also, you don't need to start a new thread when you have a question
about Timer1. You can add all Timer1 questions to the same thread. |
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boulder
Joined: 15 Mar 2008 Posts: 53
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Posted: Thu Mar 05, 2009 8:20 pm |
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PCM,
Thanks, it works. |
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