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Problem with 18F67K22's timers

 
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stoyanoff



Joined: 20 Jul 2011
Posts: 375

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Problem with 18F67K22's timers
PostPosted: Wed Jul 09, 2014 12:23 am     Reply with quote
Greetings! I'm using MPLab X v2.1, MPlab v8.91 and CCS v4.134. First I setup T0:
Code:

#INT_TIMER0
void TimerInt0()
{
    while(1);
}
void main()
{
setup_timer_0(T0_INTERNAL|T0_DIV_256);
set_timer0(0);
    enable_interrupts(GLOBAL);
    enable_interrupts(INT_TIMER0);
while(1);
}

In this case the timer is counting and it triggers the interrupt.
So I decided to setup another timer:
Code:

#INT_TIMER1
void TimerInt1()
{
    while(1);
}
void main()
{
setup_timer_1(T1_INTERNAL|T1_DIV_BY_8);
set_timer1(0);
    enable_interrupts(GLOBAL);
    enable_interrupts(INT_TIMER1);
while(1);


Now this is not working. Neither the debugger increments the timer, neither it works on a controller. I tried with timers 2 and 3 - no change.
On simulation in MPLab X it's working, but when I load the program to a controller - nothing.
What am I doing wrong?!
Thanks!
stoyanoff



Joined: 20 Jul 2011
Posts: 375

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PostPosted: Wed Jul 09, 2014 5:52 am     Reply with quote
It seems the defined parameter
Code:

#define T1_INTERNAL         0x07

is not correct. I loaded manually T1CON register and everything works fine now. In my case the correct value was 69, but it depends on the situation.
I suppose the developer of CCS can fix this bug. I'm not sure how to open a ticket.
Best regards!
asmboy



Joined: 20 Nov 2007
Posts: 2128
Location: albany ny

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PostPosted: Wed Jul 09, 2014 6:33 am     Reply with quote
support@ccsinfo.com
Ttelmah



Joined: 11 Mar 2010
Posts: 19510

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PostPosted: Wed Jul 09, 2014 9:27 am     Reply with quote
But, it was fixed years ago. Version 4.134.....
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