Hi to all

has anyone of You ever used timer2 and its interrupt INT14?
I'm not using DSPBIOS nor RTOS and I need to use timer2; but, when the 
interrupt of timer 2 is on, the Program Counter goes to a wrong place 
in the code space.

I can't understand if I'm mistaking something when setting INT14 or in 
the loading of the ISR address in the correct place or if there are 
any limitations in using timer2.
I'm currently using interrupts for ADC, PWM, CAN, TIMER0 and other 
periphereals, but I can't set correctly INT14 for TIMER2.

Can anyone of You tell me if he's using timer2 as normal timer and how 
to set correctly the ISR and its address in the interrupt vector.

Thank You very much

Best regards

You can post a message or access and search the archives of this group on DSPRelated.com:
http://www.dsprelated.com/groups/c28x/1.php

_____________________________________

 

Hi Raoul,

Are you using a 280x or 281x device ?

In 281x devices, Timer interrupt 2 is a reserved TI
interrupt so you might not be able to actually use it.
I haven't personally used Timer 2 Interrupt.

The peripheral Interrupt Expansion controller handles
only interrupt INT1-INT12. So you need to check with
the system control reference guide as to how to handle
the INT14 interrupt. INT14 also has a low priority of
16 and thats probably why other interrupts are getting
sreviced and not INT14.

Hope this helps.

Thanks,
Vishal.
--- Raoul <r...@riello-ups.com> wrote:

> Hi to all
> 
> has anyone of You ever used timer2 and its interrupt
> INT14?
> I'm not using DSPBIOS nor RTOS and I need to use
> timer2; but, when the 
> interrupt of timer 2 is on, the Program Counter goes
> to a wrong place 
> in the code space.
> 
> I can't understand if I'm mistaking something when
> setting INT14 or in 
> the loading of the ISR address in the correct place
> or if there are 
> any limitations in using timer2.
> I'm currently using interrupts for ADC, PWM, CAN,
> TIMER0 and other 
> periphereals, but I can't set correctly INT14 for
> TIMER2.
> 
> Can anyone of You tell me if he's using timer2 as
> normal timer and how 
> to set correctly the ISR and its address in the
> interrupt vector.
> 
> Thank You very much
> 
> Best regards
You can post a message or access and search the archives of this group on DSPRelated.com:
http://www.dsprelated.com/groups/c28x/1.php

_____________________________________

 

Hi there,
   
  I have used both timer0 and 2 with my F2812ezDSP, and I attached some part of my program that
was related to these two interrupts, just check if you set all of these registers or not, I
hope it can help.

  all the best,
  Parissa

gopalakrishnan vishal anand <a...@yahoo.com> wrote:
            Hi Raoul,

Are you using a 280x or 281x device ?

In 281x devices, Timer interrupt 2 is a reserved TI
interrupt so you might not be able to actually use it.
I haven't personally used Timer 2 Interrupt.

The peripheral Interrupt Expansion controller handles
only interrupt INT1-INT12. So you need to check with
the system control reference guide as to how to handle
the INT14 interrupt. INT14 also has a low priority of
16 and thats probably why other interrupts are getting
sreviced and not INT14.

Hope this helps.

Thanks,
Vishal.
--- Raoul <r...@riello-ups.com> wrote:

 Hi to all
  
has anyone of You ever used timer2 and its interrupt
 INT14?
 I'm not using DSPBIOS nor RTOS and I need to use
 timer2; but, when the 
interrupt of timer 2 is on, the Program Counter goes
 to a wrong place 
in the code space.
 
I can't understand if I'm mistaking something when
 setting INT14 or in 
the loading of the ISR address in the correct place
 or if there are 
any limitations in using timer2.
 I'm currently using interrupts for ADC, PWM, CAN,
 TIMER0 and other 
periphereals, but I can't set correctly INT14 for
 TIMER2.
 
Can anyone of You tell me if he's using timer2 as
 normal timer and how 
to set correctly the ISR and its address in the
 interrupt vector.
 
Thank You very much
 
Best regards

You can post a message or access and search the archives of this group on DSPRelated.com:
http://www.dsprelated.com/groups/c28x/1.php

_____________________________________

 

Hi Vishal
Thanks for your answer.
 
As You can see in the attached file, TI itself says that we should be able to use timer1 and 2
if we don't use RTOS or DSPBIOS: in the attached file search the following statement:
 
// CpuTimer 1 and CpuTimer2 are reserved for DSP BIOS & other RTOS
// Do not use these two timers if you ever plan on integrating 
// DSP-BIOS or another realtime OS. 
//

Anyway, I'm using 2812 and 2810.
What do You think about the fact that in spru430d, TI says the address for INT14 vector is
0x001C ( if VMAP=0 and 0x3F FFDC if VMAP=1, at page 3-4 ) while it says the address is 0x 0D1C
in spru078c, page 6-17?
 
Some in TI support says that timers 1 and 2 can be used if we don't use RTOS, but...following
the lines suggested in documentation ( or probably I think to do so ), something works wrong:
toggling an output pin goes on, but stopping Code Composer I see a long list of ITRAP0!
 
Thanks
 
Best regards

Raoul Chieu
Centro Ricerche
Ups Manufacturing Srl
Viale Europa 7
37048 San Pietro di Legnago (VR)
Tel. +39 0442 635811 - Fax. +39 0442 635934
Skype:  - VoIp: 
email: R...@riello-ups.com
Web: http://www.riello-ups.com
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________________________________
Da: c...@yahoogroups.com [mailto:c...@yahoogroups.com] Per conto di gopalakrishnan vishal
anand
Inviato: giovedì 1 febbraio 2007 5.04
A: Raoul Chieu; c...@yahoogroups.com
Oggetto: Re: [c28x] Use of timer2 and INT14

Hi Raoul,

Are you using a 280x or 281x device ?

In 281x devices, Timer interrupt 2 is a reserved TI
interrupt so you might not be able to actually use it.
I haven't personally used Timer 2 Interrupt.

The peripheral Interrupt Expansion controller handles
only interrupt INT1-INT12. So you need to check with
the system control reference guide as to how to handle
the INT14 interrupt. INT14 also has a low priority of
16 and thats probably why other interrupts are getting
sreviced and not INT14.

Hope this helps.

Thanks,
Vishal.
--- Raoul <r...@riello-ups.com <mailto:r.chieu%40riello-ups.com> > wrote:

> Hi to all
> 
> has anyone of You ever used timer2 and its interrupt
> INT14?
> I'm not using DSPBIOS nor RTOS and I need to use
> timer2; but, when the 
> interrupt of timer 2 is on, the Program Counter goes
> to a wrong place 
> in the code space.
> 
> I can't understand if I'm mistaking something when
> setting INT14 or in 
> the loading of the ISR address in the correct place
> or if there are 
> any limitations in using timer2.
> I'm currently using interrupts for ADC, PWM, CAN,
> TIMER0 and other 
> periphereals, but I can't set correctly INT14 for
> TIMER2.
> 
> Can anyone of You tell me if he's using timer2 as
> normal timer and how 
> to set correctly the ISR and its address in the
> interrupt vector.
> 
> Thank You very much
> 
> Best regards

You can post a message or access and search the archives of this group on DSPRelated.com:
http://www.dsprelated.com/groups/c28x/1.php

_____________________________________